-bump-

If it was a GPU / FPGA farm, it was set up really in a jiffy. I would lean more towards ASIC beta testing (read. Earning Opportunity)

What kind of info do you need about this mobo?. I had this mobo paired with a C2DX for around 2 years.

Intel Motherboard D975X BX2

It's the Intel Bad Axe 2, very good mobo in its time, esp for the 65nm Core 2 CPUs.

Are you using SSDs?

Huh! entertainment purposes thread ? Why do you want to pick on Goat?

It's 80Plus Gold, it's 88% efficient @ 100% load. So it will dissipate 116Watts at max load. It's almost as much a vanilla 80Plus 650W PSU.
Make sure the PSU is well vented at max load, and use a P3 Killawatt to meter the input load, and never exceed 966Watts.

How about a bounty?

Is the antenna avl? Can you please tell me if the connector male or female? Will it fit a alfa usb wifi card?
I mean is The connector Something like this http://cdn101.iofferphoto.com/img3/item/524/236/467/l_0q1e2329-1pcs-rp-sma-2-4-ghz-9dbi-wifi-booster-wireless-ant.jpg 

timbers

Is this 5850 card available for sale?

Are you based in US? If yes, will you sell Rig #2 for USD 200300? I can pay via BTC or Paypal. (edit. corrected typo in price)

As I mentioned the capacitors were glowing red due to heat! and subsequently burnt out. It's called looking at the obvious symptoms first. Using a DMM, the measured resistance across the chip caps was ~ 5Ohms. Obviously caps are supposed to block DC, not conduct

Here take a look at this thread, it's a common problem with reference 5850. My guess is that the caps are faulty, and they produce a short circuit after many hours of usage.
https://bitcointalk.org/index.php?topic=101624.0

I not only replaced the caps but two 0.01Ohm resistors feeding the rails, as well, since the caps had shorted out and subsequently the resistors had burnt out as well.

Bump

Thanks! Yes! it's mining away since last one hour now

I never said they were. I just wanted to help you with single slot mining cards, since I did not find a low profile 77xx!

There are a bunch of single slot cards 7750
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007709%20600286767%20600304290&IsNodeId=1&name=512%20Stream%20Processors

Hope it helps someone, may even work for other HD5xxx cards.

My Radeon 5850 took the dive!
Two decoupling capacitors at the back of the board were literally glowing red and were burnt out, por que AMD!

The card was showing up in windows, and drivers loaded correctly. Could not run cgminer, as the system would just become unresponsive with dead screen.

Anyways after removing the heatsink, I realised that two phases of the VRM were dead and not just the decoupling capacitors, but two 0.01Ohm Chip resistors feeding the +ve rail of the VRM phases were dead as well.

So here are the parts that I replaced / fixed (Access to parts with 'I', need the heatsink to be removed)

Ia) MR524 0.01Ohm replaced with 2 thin strands of copper wire
Ib) R527 replaced with 2 thin strands of copper wire
Oc) C510, C520, replaced with chip capacitors  (should tolerate 12V or more)
Od) C527, C529, replaced with chip capacitors (should tolerate 12V or more)

You can easily find donor devices for the chip capacitors such as DSL modems, Cooling fans, dead PSU, etc. Make sure it's rated for 12V.

Here is link to inside pic


Here is link to outside pic
https://i.imgur.com/k7MRJh.jpg

I did a hasty job (was planning to ebay the card), and didn't have liquid flux, so the soldering job was a bit shoddy, but it can be more elegant.