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Questions about GIGABYTE products => Motherboards with AMD processors => Topic started by: Reikoku on June 07, 2011, 09:27:06 pm

Title: 770T-D3L v1.x Motherboard with 5 GPUs - Yay or Nay?
Post by: Reikoku on June 07, 2011, 09:27:06 pm

Hi all,

I'm trying to work out if there's any reason I can't put five GPUs in this board using four PCI Express extender cables like this: http://cgi.ebay.co.uk/PCIe-Express-x1-x16-Adapter-Extender-Cable-/150615944843?pt=PCC_Video_TV_Cards&hash=item231168ee8b#ht_1079wt_1083

I am aware that four of the cards will run at PCI-E x1 if this works, but that doesn't bother me because I just want to use them for distributed computing.

I have two 850 watt power supplies and 140A to supply at 12V so that shouldn't be an issue, I'm just wondering because someone said putting a lot of cards in this motherboard might cause it not to boot.

Please can somebody tell me if there's any reason why I can't do this.

Thanks in advance.

Title: Re: 770T-D3L v1.x Motherboard with 5 GPUs - Yay or Nay?
Post by: Aussie Allan on June 07, 2011, 10:19:51 pm

  Yeh!   your Mum's power bill !.......

   Distributed computing ?...... can you expand on this, ... I'm trying to understand why you would do this in the first place and why....especially since you already know the best you can hope for is X1 bandwidth per card (4 out of 5)

  But to answer your question, ... Buggered if I know ! ... and I'd be surprised if anyone will own up to knowing ... Sorry, I'm Australian , A spade is a Spade! but good luck!

 Aussie Allan

Title: Re: 770T-D3L v1.x Motherboard with 5 GPUs - Yay or Nay?
Post by: Reikoku on June 07, 2011, 10:28:55 pm

I don't pay per kwh ;)

Basically I don't need any bandwidth. I'm doing Bitcoin mining (http://"http://www.bitcoin.org"), which just revolves around pure use of the GPU's clock cycles. x1 or x16 makes a tiny bit of difference but nothing worth calculating for.

Title: Re: 770T-D3L v1.x Motherboard with 5 GPUs - Yay or Nay?
Post by: Aussie Allan on June 07, 2011, 11:04:13 pm

 Well at least I understand what your doing now, but even if your not paying for KWA , with the price of power in this country, someone's gunna wake up pretty pronto with the juice your gunna be sucking....I just don't think bitcoin mining can be profitable in this country, but hay ... good luck if you can make a go of it!

 Update ... Failing any solid answers you could use Utube to visually inspect how there doing it. I think I saw some cables very similar to what your talking about.


 Aussie Allan

Title: Re: 770T-D3L v1.x Motherboard with 5 GPUs - Yay or Nay?
Post by: F5BJR on June 08, 2011, 02:11:46 am

*
You can find good products similar to this :

http://www.magma.com/expressbox7.asp

but price ???

also :

http://www.cyclone.com/products/expansion_systems/600-2710.php
http://yhst-72904622531421.stores.yahoo.net/
http://www.dell.com/fr/entreprise/p/poweredge-c410x/pd

forum :

http://www.gearslutz.com/board/product-alerts-older-than-2-months/145217-new-magma-pcie-expander.html

cubix :

http://www.cubixgpu.com/
http://www.cubix.com/products/gpu-xpander/gpu-xpander-desktop
http://www.cubixgpu.com/?PHPSESSID=zbjeailjh


Pierre