bump

spell check i went back and fixed it.

I lose track. But I thought someone was sending me a demo of this or the bitfury kit.

Once I got it I was going to review it and demo it. For everyone.

Never heard back from any ASIC builder.

I did get the pandaminer for gpu mining and did a review of the gear.

I liked it. I kept it I paid for it.

And pandaminer sold lots of panda miners.

Right now I don't think anyone will send me their ASIC 256 gear for btc.

But I am here for them if they want me.

Sure. But someone will buy it sooner

91 is low for a zero cost power guy.

Wait til Jan 27th. It is my birthday I will be sixty.

I have an tradition of giving one very good deal on my birth day.

Won't be this card it will be something else.

Alt coins serve well to scale

For Monday we drop to $91

Tues we will drop to 90

Or maybe it sells.

well  the heatsink on the cpu comes off easy  and it could be higher/bigger  by a lot.  So a custom made heat sink  would be easy upgrade for the cpu.
The heat sinks for the gpus are heavy and high quality  I would leave them alone.



As for the heat sinks  on my  little drok controller  I think they could be upgraded to copper.


I also think my controller could be put inside the case near the ram   or near the cpu heatsink.

it is good enough for my purposes at 64.4db  and 27 watts vs 85 watts is huge.

I have resistors coming.  the down side of them is they do no save any power.
This mod saves power.
I am running 27 watts for the 9 fans.
I powered fans with external brick to determine power saved at 7.32 volts
power drop was really good.

I have resistor cables coming. they are lost in the mail seller is in NJ I am in NJ  the cables  went from NJ to WI  so I do not know when or if I will get them.

Resistor cables would be cleaner as they would fully be in the case.

I do not need an external brick to power the fans I can use the fan headers on the mobo if I want.




well temps are still hard to determine as gpu-z does not pick them up. My infrared shows case cover under 100f  and the case cover touches 4 of the 8 gpu heatsinks and uses a thermal pad to help cool the heatsinks.

I ran for an hour at 8,27 volts in a warm garage no issues  and the db's dropped from 71db to 67db


I am now testing 7.32 volts  which dropped db down to 64.4 at a meter

here is what you need to make the fan much  quieter

this is $6.95  I got 3 sets of 2 and spent 21.00    but you need 1 set  if you do it correctly.   so $7.00
https://www.amazon.com/gp/product/B01CDKSV3C/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

step down is 10.99

https://www.amazon.com/DROK-Voltage-Regulator-Converter-1-2-36V/dp/B00C4QVTNU/ref=sr_1_7?ie=UTF8&qid=1484594142&sr=8-7&keywords=drok+step+down

total cost is 11 + 7  = 18 bucks

I am now pulling  34 watts  vs 75-85 watts  so 50 watts = 1.2 kwatts a day  or 36 kwatts a month or $3.60 a month per unit  so in 5 months at 10 cent power the cost has paid off.

this mod make this a home miner.

I choose one of six or seven ways to wire the mod photos to come.

I will do sound meter in a bit.


no drilling needed for mod no stock wires to cut.

these feed the two rows of fans front and back


thread through the pci jacks slot






when done two ready for power  

one does 5 fans pull
one does 4 fans push



I am using an external 90% efficient 240 watt max  brick to feed the step down. I am sending in 13.04 volts

first test was 8.27 volts out

I don't the cpu that comes is good enough.  but  down the road  an i5 could come in handy with a new coin.

I have started my tests of reduced fan speed.  This unit comes with 2 fan headers

 one for 4 push fans
one for 5 pull fans

I hooked my controller up to the push fans which were using 40 watts at 12 volts.

they now use 22 watts at 9 volts.  gear is not as noisy.  and I am saving 18 watts.

of course  time will tell if the gear overheats.

if 1 controller works I will add the second

since that is for 5 fans  I may drop from 50 to 27 watts

thus a 40-41 watt savings  and noise relief



I also pulled heat sink for cpu and as we thought cpu is soldered in so rework would be needed to upgrade the cpu ie not worth it.

the only easy upgrade would be a taller heatsink this would allow a slower fan and I am not going to bother with that.

You have 14 gpus.  Thus you are small size.

If you can mine and hold for sixty days Zec is best.

Why is that?   Zec has very few coins and a small market cap.

This means it would be easy for it to double or triple in price.


Downside is I am asking you to mine and hold for sixty days.

It could crash and burn.

I have forty GPUs I have 20 on Zec and 20 on eth.

I cash the eth and hold the Zec.

the best cpu  to put in it would be this one.


http://ark.intel.com/products/85213/Intel-Core-i5-5300U-Processor-3M-Cache-up-to-2_90-GHz

this is stock

http://ark.intel.com/products/84810/Intel-Celeron-Processor-3215U-2M-Cache-1_70-GHz



but rework could kill the mobo  so it is not worth the risk.

if the company (pandaminer) sticks around    maybe they will offer one with a better cpu

yeah I was thinking a pc to a usb hub and thats how the net causes confusion.

It would be nice to use a usb 3 to pi option.

well small yes, but   I think they made  more like 250 to 500 pieces.  they could have an in with a board maker.   so far i can say it really appears to be decent gear.

yeah  an i5 cpu vs the celeron would be a big improvement  but one cpu is 280 the other 107.

a max of 1 8gb stick of ram is okay

pm sent

why that  when you have risers.

just use a usb 3 to the mobo 

use a pcie cable to the riser
use a pcie cable  to the gpu

pretend the cable they show is a full pcie cable

it works well  has not been used much. Idle for last two years.


  I was cleaning the attic out and found 2  I sold one for 94$ to the dreamer.  His has been working fine  he posted in the thread  stating so.

The next dropdown is due at 910pm Sun about 2 hours.

 I will drop it now  to

$92.00  with free shipping to USA.


my btc addy  is :

https://blockchain.info/address/1JdC6Xg3ajT3rge3FgPNSYYFpmf53Vbtje


if you are in usa and have an interest send a pm.

Power off all gear.

Do you live in the USA?

The gear is dead.

And I really hope you did not do any firmware upgrades.

Dis connect all the boards and fire up the controller.

I really hope you left the old firmware.

Join imgur for photos.

Screen shot the gui and post to imgur.

Post the screen shots here in 1600 by 1000 size.

Once again tell me what country you live in.

My hope is the boards need a repair and you can send all three to bitmainwarranty in the USA
Will cost you around 300 maybe more.

Yep. Should work fine.  Now none asked if he under volts.  He said he does not over clock. But maybe he does not use msiafterburner to set volts lower.   Say -50 or -75 or if. Lucky - 90

Afterburner also let fans be set around 80%.  And top temp at 80f