SideHacks's TwoPac miner vs His Compac photos now review later.

[philipma1957]

I just got back form the Eye doctor.  My Eyes are dilated so I won't set these up until tonight, but early  photos are below.


Full size links

https://i.imgur.com/Ptj56Z4.jpg
https://i.imgur.com/V8MOB8Y.jpg
https://i.imgur.com/ccJdloz.jpg
https://i.imgur.com/KBjOlCN.jpg


Here they are side by side
Same photos as above but smaller.

[1713410259]

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[1713410259]

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[murasame2003]

Looking forward to your review.
After looking these pictures, I'm just wondering how to measure core voltage...

[sidehack]

The two big ceramic caps up top are each in parallel with one ASIC. So measuring across each one gives each ASIC's voltage, and measuring between GND and the bottom cap gives total string voltage. That's where I'm probing during bench testing.

[murasame2003]

Please bare with me since I don't know much about electronics 
Did I understand you right?

https://i.imgur.com/FCY9jC5.jpg

[sidehack]

Dead-on correct.

[philipma1957]

Please bare with me since I don't know much about electronics 
Did I understand you right?

fixed it for you

[murasame2003]

Thank you philipma1957.
Here is a better version for community.

https://i.imgur.com/VVi35NS.jpg

[leowonderful]

I don't quite like the silver heatsink as I'm too used to the green one, same goes for the blank frontside pcb. Not a big deal but I don't like changes too much

[sidehack]

The plain silver heatsink is because my regular supplier of heatsinks wasn't gonna be able to provide a bid until March, and after the procurement agent I handed the request to did a little bit of legwork and then forgot about the whole thing, I just bought a bunch of cut-to-length on short notice and got a guy drilling them out here in the shop. Nothing fancy, sorry.
The blank side of the stick won't be blank on the production version. Both US and bitshopper versions have a full-logo silkscreen and whatnot like the original Compac, I just didn't care to do all the manual mirror-image edits for that layer in time for the prototype sticks.

[philipma1957]

OKay After a rocky start.  I have a fully working start.bat file


cgminer -o stratum+tcp://mmpool.org:3333 -u philipma1957.A --gekko-compac-freq 225 --gekk0-2pac-freq 200-p x

I set the 1 chip to 225 and the 2 chip to 200
see below

[sidehack]

The two-chip shipped with voltage set for 100MHz stable. Looks like you need to turn it up, getting ~100 errors per minute. Should level out to 22GH, about 300WU

[philipma1957]

The two-chip shipped with voltage set for 100MHz stable. Looks like you need to turn it up, getting ~100 errors per minute. Should level out to 22GH, about 300WU

yeah when I saw the photo I realized it.    So the  +   screw  was  like this X I turned it to +

   or  from 10:30 to 12:00

it is now much more stable.

and imgur.com is down I have 6 photos will post later.


Stud hub with 2x usb2 for the 2pac.  I can send it 2.2 amps at 5 volts = 11 watts



I got compacs up to 400 freq  with a fan on this hub and the doubler bridge

I also burned a bridge doing 410 freq.

[ZACHM]

Phil, did you check what the X to + gave you for a voltage?

Based on your frequency and sidehacks numbers from here: https://bitcointalk.org/index.php?topic=1651958.msg17620138#msg17620138
I would assume you should be around 1.32v-1.36v?

Loving the pics. 

[philipma1957]

Phil, did you check what the X to + gave you for a voltage?

Based on your frequency and sidehacks numbers from here: https://bitcointalk.org/index.php?topic=1651958.msg17620138#msg17620138
I would assume you should be around 1.32v-1.36v?

Loving the pics.  

I will get meters out on Tuesday.

Once you get these sticks going it makes you all the more angry that sidehack was not given chips and chip support from bitmain for the s7 chips and the s9 chips.

Thanks to bit fury maybe we will see true monster sticks one day.

The windows build was pretty easy once I got the link from vh.

I had to load zadig but that is a one shot deal.

One nice thing is this rig. Is running a gpu on xmr. The profit it makes will allow me to run the sticks for free.

here is the rig with higher volts setting and also running xmr  quite and cool

[leowonderful]

The plain silver heatsink is because my regular supplier of heatsinks wasn't gonna be able to provide a bid until March, and after the procurement agent I handed the request to did a little bit of legwork and then forgot about the whole thing, I just bought a bunch of cut-to-length on short notice and got a guy drilling them out here in the shop. Nothing fancy, sorry.
The blank side of the stick won't be blank on the production version. Both US and bitshopper versions have a full-logo silkscreen and whatnot like the original Compac, I just didn't care to do all the manual mirror-image edits for that layer in time for the prototype sticks.

Ah sounds good, thanks for the clarification. Figured that it'd be this way but I wasn't sure. Not that big of a deal to me anyways, miners are miners


Phil, this is the fan you're using, right? http://amzn.to/2kaGf8N Checked it out a while ago but I didn't know if it was good at all or not, might consider it after getting my 2pac.

[takagari]

Very cool. I like it.

[philipma1957]

The plain silver heatsink is because my regular supplier of heatsinks wasn't gonna be able to provide a bid until March, and after the procurement agent I handed the request to did a little bit of legwork and then forgot about the whole thing, I just bought a bunch of cut-to-length on short notice and got a guy drilling them out here in the shop. Nothing fancy, sorry.
The blank side of the stick won't be blank on the production version. Both US and bitshopper versions have a full-logo silkscreen and whatnot like the original Compac, I just didn't care to do all the manual mirror-image edits for that layer in time for the prototype sticks.

Ah sounds good, thanks for the clarification. Figured that it'd be this way but I wasn't sure. Not that big of a deal to me anyways, miners are miners


Phil, this is the fan you're using, right? http://amzn.to/2kaGf8N Checked it out a while ago but I didn't know if it was good at all or not, might consider it after getting my 2pac.

your link is to the smaller 80 mm by 80 mm


this one below is the 120 mm by 120 mm    far better fan for up to 4-6 sticks at freq 200-300

 not good enough for monster over clocking in the 375-410 freq area

https://www.amazon.com/Thermaltake-Mobile-External-Cooling-AF0007/dp/B002OJN250/ref=sr_1_2?








For the record I corrected this post on the s-9 thread

This has been corrected and the number is now 967 on both websites.
So if you order that march 1 unit  be sure to check  and see that the numbers match on hashnest and bitmain  as they should .

Also if you purchased the s9 at the 917 rate  ask for a refund of around 60 usd.  I really would like to see and read if you got stuck and if they fix it.




as a heads up  coinbase is quoting btc at 960 usd

bitmain is quoting btc at 917

thus  you lose about 65 dollars if you use coinbase.

Hashnest has coins at 956

since hashnest and bitmain share the same website  and are under the same umbrella it is really fucking bad that they do not match


Take a look

[rockmoney]

Thanks for the information & review Phil - your setup is VERY nice! I can't seem to find that USB bridge that you're using, which looks much more convenient than using x2 male - x1 female USB cables. Can you please let me know where to purchase those?

[philipma1957]

Thanks for the information & review Phil - your setup is VERY nice! I can't seem to find that USB bridge that you're using, which looks much more convenient than using x2 male - x1 female USB cables. Can you please let me know where to purchase those?

wish I did  but they are no longer available.

They came out back in the day of usb stick mining

[leowonderful]

Thanks for the information & review Phil - your setup is VERY nice! I can't seem to find that USB bridge that you're using, which looks much more convenient than using x2 male - x1 female USB cables. Can you please let me know where to purchase those?

wish I did  but they are no longer available.

They came out back in the day of usb stick mining

They are still available. Go on aliexpress and search USB Y cable and you can get em for a buck a pop. I ordered about ten of them from aliexpress and they're still shipping. No fear, all of this mining stuff doesn't ever go away