Bitcoin Forum

NOW SOLD OUT more coming soon...

Setup Guide: https://bitcointalk.org/index.php?topic=560034.0
Order From: http://virtualminingcorp.com/shop1/index.php?id_product=41&controller=product
Video of the Gold Rush: https://www.youtube.com/watch?v=vr281yTrCVY&feature=youtu.be

Price drop to $849

Real world results: 650gh/s-700gh/s at 1.1w-1.2w/gh at the wall

Board Highlights
·Ultimate Bitcoin Mining Performance: up to 750 GH/s
·Typical Bitcoin Mining Performance:  750 GH/s +/- 20%
·Typical Power Requirements:  Standard PCIe dual 6pin to 12 volts of DC power
 @ .83 Watt per GH +/- 20% (power supply not included)
·Size:  4.0” wide by 12” long
·Mining Processor:  Multi Core 28nm ASIC
·Cooling System: Corsair 80i or equivalent liquid cooling system is required (not included)
-Power Supply: Corsair 850RM is required for the optional power cable (not included)
-Connectivity: USB 2.0 with 5 pin header is required. (not included) (wiring digram available)

reserved

Do you guys plan on removing the products on your website which have been scrapped?

Also plan on removing the false advertising? This uses a hashfast processor not a fasthash one. Also doubt it is 0.8w/gh at the board level.

And 750gh +-20% means this chip could theoretically reach 900gh/s yet HF has yet to even break 800gh.

I recently received a lot of doa prospectors. I have just recently placed an order for 16 gold rush boards to replace the prospectors I returned.  I used funds transfer. I feel that because ken has had my money for nine months I am due working boards at this new price. I'm wondering if they ship immediately, how long will it be before 16 of these are at my doorstep.

Emkay has reported one unit hashing at 800GH/s (although it having trouble with others, I suspect because he's using small PSU's)

Can you explain the list of excluded members please?

Most of these are actually the same person. The whole reason for this list is that these particular members mostly troll and cannot hold a civil conversation. Also now that their messages have been deleted from multiple threads they seem to make it a mission to disrupt any Active Mining thread they see.

Man, I really want to buy one, but VMC has such a terrible reputation! If I were totally sure that I would get the FHO then I would order one right away.

yeah  I would buy one right now but I just don't trust many people with 1500 usd in the world of btc.

Tired of waiting on goods hoping  the seller is honest.

I just got a 500+ usd refund from BFL  took 13 months.  I can't deal with that happening anymore.

Looks like a nice piece of gear at a good price as I have sooooo many spare psu's It would not cost much to setup.

Has anyone actually received one of these boards?  The stock level goes down but with Garrett and company that means nothing.....

They have only been out a few days so probably not:

I have a thread about VMC and its latest antics re their preceding board (read, BFL, Hashfast esque scummyness)

https://bitcointalk.org/index.php?topic=491609.0

It's not a scam. The owner Ken is an engineer who is also a terrible communicator. I guess this has been the sole reason for the scam accusations.

I have given him a hard time on here and justifiably so.

If there was ever a chance at redemption then this is it for him.. buy one and see where it goes.

Why not include the critical components like the cooling system.. ?

Well I'm not in that list, but i must admit that the list was the most unexpected thing that i saw this month.

The product and price look decent, but I don't trust VMC enough to order.

4 of the previous model's (prospectors) - these are emkay's machines.

http://postimg.org/image/mm67a923p/

I've got one on order too which has been shipped.

so really they are shipping these ? any warranty policy ?

Does it really matter? 2$ per GHs and you have to supply power, cables and liquid cooling.

Not to mention a host machine.  It's also concerning that the dies are slathered in HSC implying they've been used.

How else do you suppose they can test the unit?

http://img.imgur.com/p8PL4Qh.png

can't wait! Pics to follow.

how fast is shipping?

My order was shipped 5 days after payment confirmation, and shipping to the UK has taken 7 days, although there was a bank holiday so that delayed delivery by a day or two.

http://img.imgur.com/iY5ekc9.png

Bam - they are real! And came with a USB cable thingo...

Just waiting on a linux install - apparently cgminer sucks on OSX. Lame...

http://img.imgur.com/neYgsiG.png

When did you pay for this? Also what payment method?  Curious as to how fast they really ship.

look up three posts....

This is not a gold rush board, this is a prospector board. You posted in the wrong thread Vince. Congrats on receiving it though.

What is the power draw on that board?

Vince Paid and had to wait 2.5 weeks for payment to be acknowledged. Then a further 7 days for it to leave the VMC door. then a further 7 days for delivery to the UK..

Total time = 4 weeks, 3ish  days

In that time difficulty went up by 30% and a large portion of vince's profit went out the door.

Of course, Vince being an activemining shareholder and all out shill for VMC and Ken, has painted this in a positive light.

Being a customer of VMC I can attest to their waywardness and all out bulshittery.

If I was you I'd buy from china with EMS express shipping.

What the fuck? No.

I ordered, didn't send payment for 2 days
Payment took about 3 days to arrive
Ken took about 5 days to ship the product
Tracking shows it took 6 days to arrive.

So all told it took Ken 5 days to do whatever was in his control.

If I'd paid with BTC instantly, and if I lived in the US, I would have had the machine within 7 days.

Magzy you are royally full of shit!

Any results here?

On the prospector I'm waiting for eligius stats to do their thing (ie. giving them time) but so far I'm getting an over-performance of around 5%.

So,  is it the prospector or the Gold Rush?

Can you please also check whats the energy consumption finally?

Price has been reduced to $999

you have some eligius stats now ? :)

I do but eligius stats haven't been updating for the past 6ish hours.

This is for the prospector rated at 512GH/s - so it looks over-spec on the pool to me, pretty pleased about that!

http://img.imgur.com/yVrtS5l.png

This is the prospector - 616.4w at the wall running 3 fans on a bronze power supply.

My review of the Fast Hash One Prospector

https://www.youtube.com/watch?v=EbRFvEAJ3-A&feature=youtu.be

Accept trusted escrow and I'll buy 2 right now. PM me.

Payment in Bitcoin is apparently not an option ...:(

"Bitcoins Accepted, Please message customer service if you want to pay with bitcoins."

Thanks

anyone got these miners ? Everything working as promised ?

http://img.imgur.com/TX9Qy5m.png

Two gold rush cards ordered today. Will keep you updated and will be doing another video on these.

Let me understand, Gold Rush is an overclocked Prospector?

No, its the same ASIC chip, but on a much improved board. The prospector board is limited to 512gh (although I'm getting more like 520gh+) because of the power handling on the board, the Gold Rush board is able to deliver a higher voltage to the chip and hence high clocks speeds and higher gh/s

Just a little reminder,

There are a number of folks who have been told not to post in this thread. Their posts are deleted. Also if you quote posts by trolls those are also deleted.

It is overclocked then I suppose.

We have an estimate consumption at 750Gh/s?

I've got a couple arriving hopefully soon, I'll do a video and video and give you a power consumption then, but based on the 512gh/s card, I'm guessing it might be around 850w. I've ordered 1000w PSU's just in case.

I have asked them for BTC paying, but none answered.

I've received tracking information for my order... ordered May 11th (Saturday) - very impressed.

Nothing from these folks yet on paying with bitcoin... I guess they really don't want to sell 'em... Again, Still not an option... :(
Just my experience, I am not here looking for support... only reporting what I found.

Is a Corsair 80i really enough for one of these? Is it enough for the 512GH/s board? Can anyone confirm this?

What chip temperatures are you typically getting with the 512GH/s boards?

h80i is enough for the 512gh/s - not sure about the 750gh/s but the h100i is only a little more expensive.

I'm getting 77C on 512gh board with H100i but the chip can comfortably go up near 100C

PM KSlaughter - his staff have obviously overlook it...

price reduced to $849

No response re: Escrow means no sale from me.

I would order if you accepted credit card payments.

Ken isn't capable of dealing with the risk of being carded. Using Bitpay is also a big no-no for this company.

Creditcard and i will order 10.
Bank transfer and i will order 0.

do they take paypal or credit cardS??

Who cares at $849 we will sell all that we have in stock.

Sent an email asking to pay in btc.

is there any other way to contact them?? cant purchase online and they wont pick up the phone either

Hi, is can 4x Gold rush 750Gh/s connect with 1x RASPBERRY-PI MODEL B 512MB VERSION 2  via 10port USB hub ?   ???

Yes, we take BTC,

Order and select wire transfer and in the comment put that you want to pay with bitcoins.  We will then send you a bitcoin address and the amount of bitcoins to pay.

We are OEMing the chip, @jimmothy do you know what that means?  Just for you information it means that we can relabel it with our own name on it.  That is not false advertising this is done everyday.  We are in the process of updating our site as you have seen with the new products.  As soon as our new front page is up, we will be taking down the old products.

Wrong. Pay With BTC (https://bitcointalk.org/index.php?topic=591368.msg6714921#msg6714921)

Maybe you should put those directions on the web page, genius.

Because credit card or paypal payment offers buyers some protection if something goes wrong with the purchase. If VMC had a better reputation, this wouldn't be an issue. I have no problem sending Bitmain BTC because they have a good reputation and I'm reasonably certain they won't screw me.

If I order from VMC, I'm not reasonably certain that you will deliver a working product in a timely fashion. Based on horror stories in this forum, if I receive a DOA product I'm S.O.L.. If VMC had a better reputation, or if you offered buyers payment options with buyer protection, these gold rush boards would be selling like hotcakes at $849 for 750GH.

The reason you haven't sold out yet is because buyers are apprehensive about ordering from you.

Genius, I have already instructed the website designer to add that to our description, thank you

Right after you instructed him to remove the products that never existed in the first place right?

Do the boards have CE markings for import into the EU?

Any chance that you will post a setup guide for the Gold Rush card like you did for the Prospector card?
Since the card came with zero instructions on how to set it up, I just don't want to guess at the power setup.
The card has 4 pcie power connectors but the box says you need dual pcie power connectors so I'm a bit confused.

Thanks.

escrow?? or even bitgo ?? would help with the trust issues..

Hi, how much shipping and handling to Europe Italy? is possible to use raspberry as host? Paypall or credit card are accepted?

Thanks in advance W_M

Just paid in Bitcoin. Thanks Ken!

Still waiting for order acknowledgement and btc payment address.

EDIT - Anyone home????

Stick a PCI-E connector into each of the 4.... you are trying to deliver a lot of power so better safe than sorry.

edit: The maximum figures I've seen for how much power can be delivered via a PCIe 6 pin is 350 watts... most figures say 75 watts... so yeah, defo go with 4 PCIe connectors.

Pics of a Gold Rush card in the wild (in the UK)... with some creative extra cooling on the bottom of the chip... this isn't required.

https://i.imgur.com/OVcUNDu.jpg

More pics:
http://imgur.com/a/jYH5U

Are you running @ 800mhz and what kind of temps are you getting?
default mhz is 550 and that only got me 360 ghs.
700mhz gets me 500ghs @ 88c.
Can I push it to 800mhz?
It was tested @ 800mhz and ran 689ghs but I don't
know how or what they used to cool it with.
whats the need for the usb running from the pump?
I powered mine from the sata power cable from the psu.

any info is greatly welcomed,
Thanks

Where do these ship from?

escrow ?

mine shipped from Reno, Nevada.

Ill save up a little BTC and jump in on one.

woot - tracking info says my two cards will arrive Monday!

How do I tweak the voltage on a Gold Rush card? it's running 0.83 to 0.84 and I want 0.88.

I am getting about the same results setup the same way. @ 800 mhz I was ~91C @ ~700 GH/s.

How about power consumption at different hashrates? Any real-world measurements?

Give me 24 hours :-)

What kind or cooler are you using, I don't think the corsair H80I is big enough to keep it cool.

H110i and a 240mm fan across the board. ~580Gh/s @ 88-90C @825MHz

I was incorrect on the 700Gh/s.
It eventually planes out to run under 600Gh/s regardless of clock setting (I tried 400-850). I hope there is some secrect sauce that will allow these cards to run within the 20% spec... If not I will be unhappy...

Has anyone tried to put a watercooled loop on these? I'm thinking of getting at least two and using a watercool setup like a PC i.e. pump / reservoir and a couple of CPU coolers in the same loop. Theoretically these should outperform the H80i 

rangerbob21, have you measured power consumption at 580 GH/s?

At the moment this miner doesn't look particularly good. You could get 4 S1s for 0.44BTC each (4*0.44*450 = $792), undervolt them to 1.2 W/GHps, and get the same performance as this board (560-580 GHps), but save $50 + cost of cooling system (~$100).

I'm replacing S1's with these purely due to to cooling issues, don't forget to add PSU's for the S1's, realising you've asked for power consumption figures - I'm also very interested in this figure as well!

I am almost afraid to measure the draw... :) I will do so tonight and report back.

I actually hope my hx750m can't provide enough power to get the card to ~700-750Gh/s. If this is not the issue and the draw is in a "good" range then I have a separate issue. Possibly not good contact from the H110i to the chips for proper cooling?

EDIT: I just set up the kill-a-watt and @775MHz, ~86C I am getting ~550-600Gh/s and pulling 675 Watts / 5.7 Amps. FYI...

I am hoping someone will find fault on my rig setup and be the answer to getting the card up to spec...
 
Corsair HX750M PS + Corsair H110i cooler + 1-coolermaster 240MM fan cooling the board + good exhaust for the radiator (this same exhaust keeps a small room /w 4 S1's @~72F)

-I used the procedure in the Prospector card thread to attach the cooler using the 8/32 nuts.
-Cleaned and re-applied thermal paste on the board and cooler.
-The PS has all 4 Pci-e plugs attached
-I tested the OC from 400MHz-850Mhz and found the board hashed no faster and only created more heat for no gain... I let the board run for ~1 hour for testing at different OC levels.
-Getting <600GH/s steady @775MHz @~87C @.83-.85V (per cgminer 4.3.3)

I am beginning to think this is a card problem... Anyone else have a different outcome?

  
EDIT: The "masking tape" test results sent with the card show 686GH/s @ .88V @800MHz. I can get nowhere close to this number.
EDIT1: PIC! https://i.imgur.com/9jLq5fk.jpg

Having the same issue's as you, same PSU, running the H80I cooler, extra fan blowing across the board.
Followed the Prospector card procedure to attach everything and I can only average 600ghs @ 800mhz @ 91c-93c.
Anyone have an idea on how to get over 700ghs?
Masking tape test results on ours showed 689ghs @.88volts and 800mhz...can't get anywhere close to that number,
even running an ice chilled water cooling system @ 800mhz still only pulls 600ghs average @ 90c.

What base are you using with the water block? I used the block of aluminum that came with the OGR card. The base that came with the H110i has threaded standoffs that were too long going through the board and would never work.

Just another PIC...
https://i.imgur.com/zf1I8rx.jpg?1

I used the same base you did, had the same problem.

Ordered one trying to pay by btc, messages sent (here and on website) but no response  :(

Vince, Actm, Ken any feedback on the OGR card setup/performance?

Just noticed on the OP it says 750 Gh/s +/-20%.
-20% is 600 Gh/s.

Yep... I am getting less than 600GH/s... and nowhere near the "tested at" hash rate sent with the card.

Been following this thread to see if these are worth it due to the reasonable cost.  Doesn't look like these cards come close to 750 GH/s.  So far it's a pass.

I am hoping this is a "my setup" issue... hoping...  :-\

I have never installed a water cooler or large CPU cooler.  I have a couple of questions for anyone that can answer:

1. I have purple adhesive, but no heat sinks like in the Prospector instructions.  Was I suppose to have them?

2. If the answer to that question is no heatsinks needed on this board, then what do I do with the adhesive?

3. I am following the Prospector instructions on placing the A Plate on the bottom of the board, turning it over and then attempting to screw in the large Plate that was sent with the Gold Rush.  But I don't have screws long enough to go through large plate and then the A Plate.  Should I be doing it a different way?
 
Appreciate any help.

I set the card up with the aluminum block as the base (pay attention to the orientation...) cleaned all, reapplied the thermal compound and discarded the base plate that came with my cooler (H110i) and the purple stuff. I then followed the prospector setup with the 8/32 nuts to attach... I have no idea if this is correct but it seems to work.

I needed to get the nuts pretty snug to get good heat transfer but not too tight or you can cause damage to the chips, 1/4 turn at a time...

Excellent.  Very helpful.  Thank you! Not sure why there are no specific instructions for this card?

This is DIY territory :)

to whom who have received their boards:

were you able to track shipping before you received it? behind the order I have DHL tracking, status says it was shipped some day's ago, but DHL tracking site has no information whatsoever... ?


EDIT: Never mind.. Fedex just called.. package in customs.. :)

What is the performance on these units?

Do they perform as advertised?

zzzzzzzzzz.. guys, don't try paying by bitcoin.

This...

So in reality, this card is really 550 GH/s to 600 GH/s for $849 when you can get 3 Ants for $600?

...With ~X2+ the power consumption for the S1s, but so far, yea that is what I see...

I really wish I could get any feedback from Ken (and/or company) on what is going on with the performance of the board. So far I am under spec...     

https://i.imgur.com/ElauBPl.png

I do not have a Gold Rush card but because it is an EVO or extremely similar I've been told the contact of the cooler is EXTREMELY important for the hashrate. If the cooler is even slightly out of contact you'll get the numbers you are getting. Also if you are using a second grade paste this can cause issues too or if you put the paste on wrong (too many "air bubbles" from not spreading correctly)

It's also Extremely important that the back plate on the bottom is secure and taking some heat off the board. Get some air flow under the card as well.


As I said before I do not have one of these cards so I can't tell you exactly what's wrong. Also what does your CGMiner/BFGMiner command say so I can compare. It is extremely unfortunate that Ken is not giving any recommendations but not surprising.

Par for the course in "Bitcoin miner vendor land" I am afraid...  :-\

I will take it apart and "reengineer" the cooler to see if that gets me anywhere. I might just need to give a 1/4 turn more on the nuts... We shall see...

cgminer varies according to the pool (and interestingly, per share diff) I get 800+GH/s from cgminer but ~580GH/s at Eligius and ~580 GH/s from cgminer and ~580GH/s from slush...


Thanks!

Could use some troubleshooting.  With the ATX connection from the board (5 straight-line pins) going to the PSU (10 pin) plugged in the board goes on and off right away.  If I leave it unplugged it runs. ???
Also - can't get cgminer to see it, or my computer for that matter.  Any drivers necessary?  Using Win7 Home Premium.
Not sure if the two issues are related.

You never gave me the CGMiner command line, the .bat file. It should be something like this

cgminer.exe -o POOL1 -u USERNAME1 -p PASSWORD1 -o POOL2 -u USERNAME2 -p PASSWORD2 --hfa-noshed --hfa-hash-clock 750
pause




Yes CGMiner/Windows 7 requires the zadig WinUSB Driver Zadig 2.1.0 exe (http://zadig.akeo.ie/downloads/zadig_2.1.0.exe)
Install WinUSB on the Gold Rush units.

My results mirror what your getting, I just can't keep it cool enough to run 800mhz with the corsair H80i.
Think we are going to order some parts and build our own cooling system.

A. Plug nothing from the PSU to the GR board other than

1. the 4 Pci-e connectors
2. whatever the cooler pump needs to run (the H110i was a sata connector)
3. You can power additional fans from the board or PSU.

B. Have you installed the drivers using zadig first? Cancel any OS detected HW driver install (takes a moment to actually cancel the process) when you plug the GR in.

Edit: C. http://aphnetworks.com/tutorials/psu_paperclip_trick

The command line is good and clock is set currently to 800. I do not use the noshed option. In my testing the hash rate went to ~200GH/s when using noshed.

I think I will try to use the long screws that came with the cooler kit to get better contact. Thanks for the tip Bar... :)

edit: ...and redo with better thermal paste...

I paid in Bitcoin. PM kslaughter.

Thanks Ranger!  So I have ZADIG installed and my pc says it sees a "Mass Storage Device" by Alcor Micro Corp.  Since it's the only usb plugged in beside the mouse I assume that's the GR.
But I still can't get cgminer to see it.  I have tried starting cold and using the .bat file above.  In both cases I get:

https://i.imgur.com/IUlq7a1.png

Any other suggestions?

EDIT: On second look and trying to get to run on another PC, I don't think it's the Mass Storage Device.  When I plug the usb in from card the computer has zero reaction.

Try starting cgminer first, then plug the USB into the card after cgminer has started.

Well that did not work.  But turning the card off, plugging the card into the PC, then turning it on got it recognized.
Now my issue is in literally 2 seconds it resets I believe due to thermal overload.  Though I don't understand how that can be after 2 seconds.
Then it restarts 4-5 times reducing the voltage each time.  But each time I get the same error as below.
I may need to tighten up the cooler, but this seems like something else.  The temp reads 25C when it cycles down. Any ideas?

https://i.imgur.com/14VNKyY.png

Didn't you say you didn't get any heatsinks? I wonder if that could be what is causing the overheating.

I did not get any but have not heard officially that I was suppose to.  Plus the temperature reading is only 25C, which I believe is just room temperature. 
I don't think the card could heat up that much in 2-3 seconds anyway.  Just does not make sense.

Actually it can... the cooler is not on correctly...

You are right!  I just figured it out.  Going to have to wait for more screws.  Can't get this one any tighter.

Why is it that I can't get a refund it working product. I received 14 doa prospectors and the drive them to Missouri personally to get tech support and it replacements and or refunds. Ken said he wails check them but it took him forever to do so and now he hasn't given me replacements or refunds so I ordered a goldrush card and my order got cancelled. I have the receipt of the returned prospectors but nobody from Vmc will talk to me. This is going to be a serious law suit if I do t get compensation very soon. My word of warning to everyone do squander 26k with Vmc like I did.

I'm sorry for your trouble.  I don't have the link handy, but I believe there is already a lawsuit afoot that you might be able to join.

I hope anyone thinking of taking a risk with this company and these boards is reading this thread.  There seems to be nothing but abysmal failure coming out of VMC.  Unfortunately this, from my understanding, is par for the course.

Well I guess BTC isn't welcome been chasing for nearly a week now to pay via BTC. Doesn't bode well...

Ya, if there's ANY Thermal issues on CGMiner it's almost always bad contact with the board on your cooler.

This can go multiple ways
   Not tight enough
   Too tight
   Bad spreading of thermal paste


It pretty much has to be perfect on these boards for them to work. If you don't put the backplate on correct and the board warps a little because you have the cooler on too tight it can also give issues to the temp reader and cause errors too.

I guess what I'm trying to say is, keep repeating the cooler until it works :P

Well this has been a testing week...

I got the wiring kit... this was a mistake.

Neither gold rush board showed up as a USB device when connected via the USB header. It took me until today to figure out (after ordering some micro-usb cables on a whim) that in fact the boards only seem to respond on the Micro USB port.

One board is clocked and running nicely at 887mhz, not sure on exact hashrate yet, but I believe it should be around the 670gh/s mark. Clocking above 887mhz causes problems, although I'm relatively confident on the thermal setup I've got running.
The second board I ran out of thermal paste so I've got it clocked at 300mhz until I get some more.

How to run multiple Gold Rush/Prospector cards on the same host machine, at different clock rates:

Do this one by one for each board:
1. Plug in Board1
2. Run CGminer with the flag
3. Quit CGMiner and un-plug the board.

Do this with each board

After you quit CGMiner the last time, and you've named each card, plug all of the cards back in.

Run CGMiner with the flags

Obviously for each additional board you just need to add another comma separated item. The number after the board name is the clockrate for that board.

The --hfa-fan 100 isn't required, but helps keep temps down on startup.

You mind posting details/pics of how you attached the water block? I "reengineered" mine last night and made it worse... :(

Thanks!

What is the ideal temp I should be looking for and what is the danger range?

Ken, I would like to get refund now, its been several times i'm asking for it.

Order AGWQBVSDM /2013-12-03 / $769.00 / Bank Wire

I used the leftover bits and pieces from the H100i water cooler to build these little legs which hold the board about an inch up allowing for excellent flow underneath. You can see here also the aluminium heatsink which fits on the back of the board.

http://img.imgur.com/HOs5v8D.png

I'd like to buy with BTC but had no joy, not brilliant communications

Coming soon to a youtube near you...

Verdict:
Don't bank on more than 650gh/s
Much easier to setup than a prospector card, but still super sensitive to heatsink mounting.
The USB header doesn't work, so get yourself a Micro USB cable.

http://img.imgur.com/LARbnb5.png

what is the best corsair h100i or h80i ?  

And why not can up to 750Gh/s ?

Scam VMC? why said that are 750Gh/s ?

h100i is better

They advertise +/- 20%, so 600gh/s is (technically speaking) within specification, although I don't think they should be advertised at 750gh/s

The wiring kit if out of stock so what do I need to get to make this work? I notice 2 wires (in additional to the standard USB cable).

got my toy today, installed it into mini-itx case (pics tomorrow), cooling with corsair H100i

borad had a label: Passed; 707GHz, 0.88V, 800MHz

after 25 min
https://i.imgur.com/0qU5vCk.png
and
https://i.imgur.com/DqgH8vb.png

started mining on eligius

http://eligius.st/~wizkid057/newstats/userstats.php/17tPccT1jgghUMK7J9XThXtXZkGERQSFeS (http://eligius.st/~wizkid057/newstats/userstats.php/17tPccT1jgghUMK7J9XThXtXZkGERQSFeS)

EDIT: it's running on win7 in virtualbox on a mac

Good Card.  Consider yourself lucky.
My masking tape said 633 Gh/s and I can get it to about that, sometimes a bit higher.  Still almost 20% below advertised.
Corsair 100i with monster fans of about 135 CFM added.  Temp does not get above 85C.

Look at his Eligius stats, they don't show anywhere near the CGMiner SS. 

Indeed, in fact they report less than half the hash rate reported by cgminer.......try a different pool, I know eligius have been having a few issues lately........

Nah nothing wrong with eligius, but doesn't hurt to get a second opinion from another pool. :)

Here's the video I did on the Gold Rush cards: https://www.youtube.com/watch?v=vr281yTrCVY&feature=youtu.be

job well done, good video!

I've played with it about an hour now in the morning. Cant get the same results anymore.. also btcguild reports about 400G.. maybe it's problem of virtualmachine, I'll try to install raspbPi later.

oh.. here are cover-off pics:
 https://i.imgur.com/ISrq2zhl.jpg
https://i.imgur.com/NiO8p5pl.jpg

ok, now it controlled by rasbperryPi.. same settigns, let's what happens now..

http://eligius.st/~wizkid057/newstats/userstats.php/17tPccT1jgghUMK7J9XThXtXZkGERQSFeS (http://eligius.st/~wizkid057/newstats/userstats.php/17tPccT1jgghUMK7J9XThXtXZkGERQSFeS)

I noticed, that when starting cgminer, hashrate looks really desireable.. but then those messages pop up:

NOTICE: Hash Core Error: Squelching die 0 core 80
etc..


after a while when al lot of cores are "Squelched" hashrate stables to that what is seen on pool about 480G  :(

I'd really like to know how was it tested 707G as the label said inside the box...

I'll try to improve cooling in few days, see if that helps..

My Cgminer keeps shutting down with the error" LIBSUM_ERROR_PIPE" which is apparently error you get when the software sends a command that the hardware is not capable of.  At least as far as I google it.
Ended up installing CGWatcher to restart the miner when it locks up.  Seems to be working better now.
Anyone else with similar error?

how can you tune voltages? you can't?

this looks like a good deal but i have been screwed before buying off of a self moderated thread. do you take escrow?

Still no answer.

Assuming you mean 707GH/s, that is impossible with 800MHz. The chip can only do 768 hashes per clock on an absolutely perfect chip even without factoring in any losses due to HW errors, rejects, work restarts, etc. At 800MHz your theoretical max is about 614GH/s though you could go above that (especially briefly) due to variance at high difficulties.

If you want to see how many cores are still active after awhile, turn on debugging in cgminer and look for the inflight value in the OP_GWQ_STATUS message.

Thanks, I was wondering how I can see that :)
Also good to know about those core counts and max theoretical hash speed (y)

So I've got 3 of these on the way (hopefully), going to try an open loop watercooling setup on these which should outperform any closed loop watercooling i.e. H80 / H100

I'm interested in what kind of open loop system you're planning? I was looking at doing some absolute benchmarking open loop just using the city water supply, but that's really not viable for anything other than short term stress testing. I've often thought it would be a great use of lake/riverside property, but I definitely don't have any of that.
If you could make it work though, evaporative cooling would be a cool project.

Anyone running these on a rpi?

Did you already try this?


Also:


I recall Ken actually sent a pre-configured RPI to a customer who was having trouble, so at least one person is using an RPI, but I suspect there are others. I think VinceSamois is using one, but I'm not sure.

yes, debian on rPi

Do you have any image?

nope, but it's not that hard,

I did something like this:

1) download Debian Wheezy rasbperryPi image from here: http://www.raspberrypi.org/downloads/ (http://www.raspberrypi.org/downloads/)
2) write it to SD card: http://www.raspberrypi.org/documentation/installation/installing-images/README.md (http://www.raspberrypi.org/documentation/installation/installing-images/README.md)
3) connect microusb for power and monitor and keyboard to rasbPi and boot up, there will be little setup, i think you should do the 1st step atleast (just choose to enlarge partition, and all will be automatic)
4) connect fash-hast card to raspbery, after that when typing 'lsusb' you should see a new device that was not there before you connected fash-hast card.
5) install some more packages:
sudo apt-get install build-essential autoconf automake libtool pkg-config libcurl3-dev libudev-dev
6) clone cgminer from git
git clone git://github.com/ckolivas/cgminer.git
7) compile
cd cgminer
./autogen
./configure --enable-hashfast
make
 ;) run cgminer as usual

EDIT: And don't forget to tip ckolivas :)

How are the miners performing?

at least 13% under the promised 750gh/s spec.  over 30% under spec in my case.

Got my first goldrush today, nicely packaged and everything.

Everything worked fine until i was gonna mount the h110 cooler, I cant for the life of me get it snug to the cores  ???

It gets contact, because there is coolingpaste on the cooperplate.. but you can see there is a little space between.

Seems the screws i got with the h110 are wrong, i have put it together (to the best of my knowledge) according to the instructions..

Anyone have any tips?  ::)

https://www.dropbox.com/s/wgg1rcqstidn7j3/2014-05-27%2020.03.40.jpg
https://www.dropbox.com/s/qikydt6i2iehhub/2014-05-27%2020.02.59.jpg
https://www.dropbox.com/s/iu5etn0ohps0h4a/2014-05-27%2020.03.25.jpg

there is your problem.. you need to be creative :) I get my h110 tomorrow, will keep you posted then.. at the moment my board is hashing 450-550G with h100i @800MHz

Has anyone contacted VMC to see what they'll do for miners that fall outside of the +/-20% variance?

It seems that ~650Gh/s is a more realistic expectation from these.

I think it's pretty well accepted at this point that they'll ignore you and your inquiries.

Thanks, that was very nice.

VERY NICE!  But I'm stuck on #7.  After cd cgminer.  I get errors on "./autogen"  What am I missing?

./autogen.sh

I may be incorrect here but if you did not get cgminer from GIT then autogen is not needed. Just configure and make.

Great :) hope you have better luck with it  ;D

Well I am sad to report that my GR card is no longer recognized by any system after I plugged in an additional fan to the board (fan 2 header). I am now at a loss. The board powers up with the normal lights and the normal indicators when USB is plugged in. after that, nothing is recognized.

What I did to "cause" this...
1. All systems running stable ~600GH/s @ ~90C @ 800MHz
2. Power Card down
3. Plug additional fan into fan2 header pins
4. Power up card (new fan was spinning)
5. nothing, card usb not seen by multiple systems.

Anyone have any troubleshooting ideas here?

I contacted Ken and company but have had no response.

My card was running off and on (off for liquid block placement) for roughly <2 weeks total.

Thanks!  

You should be fine with your cooler, just attach better fans to the radiator.
Double cfm fans, double the cooling :)

Perhaps try removing the second fan and seeing if it comes back to life.  I half recall there being issues with power when running multiple fans.

BTW has anyone measured power efficiency at the wall?

ok, here I go:

indeed, using parts that came along with h110 watercooler, it is not possible to fit it on card, there will be a small cap..
so I used kids construction parts that were laying around.. and fitted into coolermaster mini-itx 130 case, I must say H100i is easyer to install on the miner board and into that chassi, also H100i is same size as air-intake holes on the side of case, although I leave cover off..
https://i.imgur.com/ffGGtoil.jpg
https://i.imgur.com/7jjy2Sjl.jpg
https://i.imgur.com/s2UP0Lul.jpg
https://i.imgur.com/NBU4HfHl.jpg
https://i.imgur.com/utG4EzJl.jpg

Temps seem to be about the same.. this card was 659GHz tested, 0.88v.. for me eligius about the same performance or maybe a 20G+ more.. time will tell..

Still I wonder how to rise voltage to the same step as "tested" label indicates...

I must say I lake the design of my miner.. If building it would not be so expensive and time consuming, I would add rPi and voila, you would get a nice miner :) for now I have some more to build for myself ;)

EDIT: ok,, system with H100i get hotter.. it sits infront of air ventilation hole and gets hotter than system that has H110 and is next to it but does not have fresh and cool air ventilation hole in front of it.. so for next systems for me it is H110 or H100i + better fans..

2 cards on btcguild:
1,074.86 GH/s   5115392 (99.42%)   27136 / 0 / 2560

1,2G and I would be fine, but this is.. this is.. too low...

Wow, not even 600 GH/s per card.  I've been following this thread to see if anyone has had the magic touch to push them to 700 or up.

Still waiting on the sidelines.  Decent price too.

My cgminer totals were in the 800+GH/s range while mining at eligius but the actual hash rate from the pool showed what I had normally on other pools-550-600 GH/s.

First thing I did... :) No joy.

No one has answered where/what/how the "masking tape" test results came from but I know of no one getting more than 650GH/s out of any of the GR cards in the wild. I personally never was above 600GH/s at any time.

@ 800MHz ~580-600GH/s @750 watts at the wall If I remember correctly.

Other then for payment, yea, so far, nothing...

Yes. Nothing but us crickets here...

Thanks for the update :) did you manage to get it in contact with the cores? another stupid q - are you having the fans blow into the radiator or out from it? doesnt say in the corsair manual..  ???

Had the same thing the other day, I pushed the reset button on the card, it rebooted and showed up on my pc.

I installed fans to pull air inside the case through radiator and out. case has one 120mm and one smaller fan to push air in, also case is open in the back, so air can flow freely around the PCB also.

yes, it is in contact w cores

btcguild reporting:
940.59 GH/s   5972992 (99.42%)   32256 / 0 / 2560


that is two (2) cards...
:(

EDIT: hashrate seems to jump up'n'down a lot... tomorrow I can give a graph.

Ken just informed VMC shareholders that he was heading out West to work at tweaking miners in the ActM mining farm. Perhaps he'll come back with some instructions on how to set these units up to get closer to the advertised speeds?

2nd thing I did... :) Still no joy.

One time I lost my card also, I powered it off, then removed power cable, and powered it on again (without cable) so all those energy things I do not know the word in english will disappear and after that my card was happily found and hashing again

hello miners

any body can tell how set up voltage on gold rush??
command line or something??

regards
Gracjan

Did you remove some of the mounting plastics for the heatsink, or you used what was stated in the h110 manual? seems to me it should be possible to get it close enough by removing one of the small plastic clips, allowing it those extra mm's more closer to the cores..

never looked at the manual :)

this was my final solution:
https://i.imgur.com/7jjy2Sjl.jpg

Has anyone received tracking numbers from orders over the holiday weekend? Promised on Tuesday but still have have nothing.. :(

tracking will appear in order details.. open your order and look closely.. mine was sent via fedex although it said dhl

got nothing on my order sadly, was paying my BTC and it was done via PM on here

did you got e-mail that order was sent?
someone mentioned that Ken headed West.. maybe he is not in office to ship your order?

I can understand that, but when they say you'll get shipment and tracking on the 27th that's kinda what I expect. Anyway I'll keep chasing...

OP has these "750G/hash" for $849 and sells the older or other chips "512G/hash" for $1999   what gives?  Im interested in the newer one if the price matches to performance.  I mean if it was about 20% less since most see 20% less performance..  Nice design either way.  Look forward to seeing the manufacturer paying a little more attention to this thread!

Well I've tried email to the website, PM's on here and phone calls - nothing sadly. Eager to take BTC but not to provide any further communications. I'll be requesting refund at COB today if I don't at least get an acknowledgement of communications. Pretty shocking really.

What makes you think any new request, especially for a refund, is going to get any response?

My card is now dead, it never hashed to the minimum spec and no one from VMC or Ken has responded and probably never will, if recent history is any guide. VMC could have been something good if only someone, anyone would put on the customer service hat for a day and answer some requests...  

Edit- I received a blurb from Ken on the VMC site that the warranty is 10 days for DOA. I am not sure if this is Ken's way of saying "tough shit" on a card that died within this 10 day period and never performed as advertised or if this is a general statement, so I responded with how to process the replacement of the card that died within this 10 day period. We shall see... 

Interesting. I think this is the first recorded case of DOA, then. Many had issues with setup but I don't think anyone has had a board simply die yet. Keep us updated.

Unrelated:


This might be relevant for some of you guys. I recommend keeping an eye on the Habanero thread for other information on the Hashfast clones. Of course, some of the info might be specific to the Hab. board.

My board was not DOA, it just died in the 10 day timeframe. Just for clarity. :)

I think I'll get a response as I've actually paid for something and received nothing, you have received something. In any country I'm pretty sure paying and not receiving goods is illegal

I've now got one card running happily at 850mhz, and one at 887mhz - ie. about 670gh/s and 690gh/s

Wow!

 Any specific tips, tricks, or tweaks? I don't have one of these boards but I'm reading that a lot of people are having issues getting them much past 600gh/s.

Get the cooling right... simplez

Anyone know how to resolve this error?

HFA : OP_USB_INIT failed! Operation status 14 (Main board
 FPGA Bad magic number)

FYI: https://peppermining.com/pepper-miner-app/

Where can I get this them ?
How much $ ??

Thanks in advance..

Let me offer you a piece of advice:  don't.  Buy from someone else... Mr. Teal, Bitmain, any of the  A1 clone makers, etc.

I'd echo this, they got my BTC and I got nothing

Post here https://bitcointalk.org/index.php?topic=462370.0 and you will definitely get an answer

So is this company legit? $849 for 750GH/s, I'm about to buy, will they ship?

This was posted just 3 posts above your reply...

I would say currently not shipping and not responding to PM's, emails or threads...

Not answering PM's or emails or website queries but I'll try that thread as well, fingers crossed

But they have delivered in the past? It's kinda confusing :p
still better than BFL? :p

I certainly seems that way, people have posted pictures - it gave me confidence initially....

So erh, is this a yes or a no...?
Did anyone buy something from them and actually never received it, or got a DOA that never got replaced?

Just read the above posts, all your questions are answered.

Does that translate to ~800+ watts? Great job BTW...!

My god man, read the thread.  Due diligence is up to you to perform.  There are, at the very least, a handful of people that are having DOA issues and being hung out to dry.  There are, at the very least, every single person in this thread who have not achieved 750GH/S at 0.83W/GH.  In fact, Mr. Teal who stopped in here briefly was kind enough to point out that these chips are seemingly incapable of reaching those speeds at that consumption.

Do some reading on VMC/AMC and Ken Slaughter.  Make an educated and informed decision.

Ooh gees sorry, I did went through a lot of posts and that's what I noticed, just didn't know if it was still up to date... thanks though, still considering a purchase from these guys, or else it'll be Spondoolies or ant miner s2

May I suggest the following?:
Dogie's Comprehensive Manufacturer Trustworthiness Guide (https://bitcointalk.org/index.php?topic=456691)

Why take chances?

Don't take the chance, I've handed over 3.44BTC for 3 boards and got nothing, no communications, acknowledgements. It's basic theft, absolutely appalled by this.

Quite why the company doesn't have a Z rating in the trust worthiness guide is beyond me.

Currently seeking legal advice....

edit: perhaps not looking at - https://bitcointalk.org/index.php?topic=462370.3720 it looks like VMC are going bust big style.

Dunno...

If it's any consolation, VMC is in the 'Bottom 3' (as opposed to the Top 3, I suppose).
LOL, I think Butterfly Labs is in a league of their own as far as the 'Z' rating, so I think they've got a ways to go.

Also, a lot of people had issues of one sort or another with Hashfast, so I can understand that one...

I do see this note on the Comments:

   Offered and honoured refunds from the start. Clones now appearing, original chips not yet ready.

If you feel that strongly about it, and can show Dogie proof that you've paid and gotten nothing from them, he may downgrade them to a C- or a D.

Just a thought.

Ordered 3 so far and pd in BTC for each. All delivered within a week. Latest one shipping today.
Maybe I'm just lucky.

You have PM, would like to know what contact details you are using :)

ditto, ordered 3 so far, all delivered to the UK.

VinceSamios Nice work, what temps are you running?
Best I can do with my card so far is 625gh/s @ 850mhz running 73c using .84v.
It was tested at 689gh/s @800mhz and .88v according to the masking tape that was on it...

http://www.coindesk.com/missouri-secretary-state-halts-mining-business-deceptive-tactics/

Is this the same VMC?

625GH/s is about what you should expect with 850MHz. The chip can only do a maximum of 768 hashes per clock cycle, so factoring in bad cores, rejects, HW errors, etc a good rule of thumb is MHz*0.75=GH/s, if all is well.

yes, I've still no comms from them regarding my recent order - took BTC and nothing...

Watch out guys, I just got a PM from ActM_Thread, it's a scam (phishing)
If you also got this, do not send any bitcoins to the address!

Just got a call back from VMC's representative letting me know that messages within put in orders will be reviewed and in my case they will send me bitcoin transfer info.

I have VMC board, but it uses same chip, so maybe some of you have any ideas what to do?
https://i.imgur.com/odIvFXG.png
and over and over again same thing, detect errors disabling, detect ...

I tried restarts, shutdowns, hfa-hash-clock down to 300.. still nothing

EDIT: heh.. pump sata power connector disconneted ;) but now there is another problem:

https://i.imgur.com/G4IDREb.png

lots of hash core error (they were also here before that power came loose).. what is the cure for that?

Lol yes - pump disconnected will do bad things.

Are you allowing cgminer to squelch cores? It's the same core giving you errors.

I see squelching in cgminer logs (at least for other boards), so I guess it is allowed.. It's always die 0 but different cores..

Only 8 cards left in stock atm  :P



http://virtualminingcorp.com/shop1/index.php?id_product=41&controller=product

Gold Rush cards are now sold out - expect to see more soon.