Topic: My Custom Case Build - page 2. (Read 21410 times)

What's ROI?
Just kidding..this is a hobby for me so I didn't approach it with the intention of maximizing profits. Heck, If I make anything at all it's all gravy 

Unfortunately my attention has drifted elsewhere so I'm not into it as much.

This is really awesome!
But I think it will kill your ROI

Thank you!

To connect the two PSUs together I am using this adaptor from buyahash:

http://buyahash.com/product/dual-psu-24-pin-cable-adapter/

There is another adaptor you can use from www.add2psu.com but it requires a molex connector.

We have the OEM case too.

Hi!

Nice setup!!!  Very clean! A change from the confusion of cables We usually see :-)


I've been thinking of linking 2 psu's together, what did you use to link the 2 psu's?


regards,

P.

Yup, that's why I went ahead and bought another one The ones I use are just a bit pricier than the cheapest ones and temporarily went down to $299 after rebate. They are up to $344 after rebate now..should of bought more but funds are a bit tight

Just the card fans. Ambient temperature is 68 degrees. Found that one of the GPUs was running hotter than the rest so I moved it to the coolest spot in the rig. I'm sure it's due to the thermal paste not being put on correctly from what I have read.

Temps after moving GPUs around. I have pretty much confirmed that GPU 0 is actually the second physical GPU from left to right in the rig.

Before:                                After:

Funny what less than a month can do for GPU pricing, 7970s can be had for 279 right now on Newegg after rebate.  Great looking rig BTW.

@CartmanSPC

Very nice build man... much envy going your way for sure.

Are you just using the card fans to cool? or do you have anything else pushing air through them?  It's gotta be pretty warm around that thing.

Try 1055/1500...or better yet come to IRC and we can help you there.

Server: irc.freenode.net
Channel: #digitalcoin
Webchat can be found at: https://kiwiirc.com/client/irc.freenode.net/#digitalcoin

What are your settings for 7970: engine, memory, voltage, thread count and bios version? I have the same MSI 7970, but it just refuses to go past 660 and at the same time I can get 7950 to mine at the same speed.

Thanks

cgminer running smoothly. Think I will increase the fans from 80 to 85%.
I suspect that GPU1 is actually the left most GPU and GPU0 is to the right of that one.

thx for reply - i was searching for this stuff.
your build is very nice - i have an inspiration.

Wow! Why have I only seen this now?!? It looks bad ass. 

Yes, script coins only.

My friend nice setup you build.
Wich coin are you gonna mine? 
Litecoin i guess?

Ok, got a 5th card. Since I am maxed out at 4 cards with a 1200 watt power supply I had to get another power supply. I plan on eventually having two 4 card rigs but until I get more GPUs I will use the second rigs PS and GPUs in the first one.

Will also be running up against the max of 16 amps on the 20 amp circuit I have. May or may not be able to run 6 GPUs until I can get a higher amp circuit. At that point I will be switching to 208 volt from 120 I'm using now.

The second power supply is also a Corsair AX1200i. This picture shows the two CorsairLink interface units. Since CorsairLink only supports reporting on one PS at a time I have to disable one and then enable the other (in device manager) to see it's individual power usage. A nice surprise was that even though some of the GPUs are being used on the second power supply, CorsairLink still see's them for monitoring.


Here is a pic of the case with the GPUs now facing the front of the rack (cold air isle). You can also see the temporary orientation of the two power supplies. You might notice that I am only using powered risers on the first 4 GPUs. Think I'm okay not powering the 5th one. If I had 6 or 7 GPUs then I would break out another molex cable to the power supply. I may still do that just for the 5th GPU.


Close up of the connections. 1st power supply has 3 GPUs + 8pin MB + SATA power. 2nd power supply has 2 GPUs + 4 connector molex cable. I can now see that if this was going to be a permanent setup the case should of been made longer so there could be more space between the GPUs and power supplies. The additional space would facilitate easier cable management and allow some distance between the GPUs and the PS since these particular GPUs expel the majority of hot air towards the power supplies. Even with one PS a longer case to distance the PS from the GPUs would (I think) have been beneficial.

Thanks!

buyahash.com
They have standard length and extended length. Also got the PS splitter from them.

The extended length risers are really long though. Would be happy with just an extra 2" from the standard length version.

Nice work! I really like this setup...
 

Would be cool too see them all water-cooled as well.