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Other => CPU/GPU Bitcoin mining hardware => Topic started by: amazingrando on March 09, 2012, 04:33:20 AM



Title: Cheapest AMD dual PCIe slot motherboard?
Post by: amazingrando on March 09, 2012, 04:33:20 AM
I need to buy several motherboards for 6990's.  I've been looking at an ECS A885GM-A2.
http://www.newegg.com/Product/Product.aspx?Item=N82E16813135272

I has two PCIe x16 slots with two x1 slots in between, which makes for a good amount of space between cards if I put two 6990's on this motherboard.

Until just recently Newegg was selling them for $54.99 with free shipping.  Now they're $65 and shipping is $3.  $13 more per board multiplied by the number of boards I need to get is going to add up.

Given that I'm a cheap bastard, I'm wondering if anyone knows of a good alternative - something with two PCIe x16 slots with extra space between them and it takes an AMD CPU.  Could be a prior generation.


Title: Re: Cheapest AMD dual PCIe slot motherboard?
Post by: Transisto on March 09, 2012, 06:17:08 AM
I got a hint for you, get any board ASAP as long as you aren't paying 30$ too much for it.

This seems like a waste of time, really.


Title: Re: Cheapest AMD dual PCIe slot motherboard?
Post by: amazingrando on March 09, 2012, 06:22:14 AM
I got a hint for you, get any board ASAP as long as you aren't paying 30$ too much for it.

This seems like a waste of time, really.

I need to buy about 20 of these, so if someone said "hey you can get x motherboard for $45", then I've saved myself about $400.  Might be a waste for you, but I'll gladly save $400, $200, etc.  ;)


Title: Re: Cheapest AMD dual PCIe slot motherboard?
Post by: Transisto on March 09, 2012, 05:32:21 PM
Hehe sorry , ;)

Will these be used as gaming pc with a decent CPU ?

Otherwise I'd be thinking about some getto rack configuration, with 4-5 card earch. (save on cost and power)


Title: Re: Cheapest AMD dual PCIe slot motherboard?
Post by: amazingrando on March 09, 2012, 06:33:11 PM
Hehe sorry , ;)

Will these be used as gaming pc with a decent CPU ?

Otherwise I'd be thinking about some getto rack configuration, with 4-5 card earch. (save on cost and power)

These are for my mining farm.  I can do more cards per system, but then the cost for each PSU goes up or I need to do dual PSU's.  Even though managing more rigs isn't fun, I'd rather keep my costs low and make management easier through software.


Title: Re: Cheapest AMD dual PCIe slot motherboard?
Post by: rjk on March 09, 2012, 07:16:28 PM
Hehe sorry , ;)

Will these be used as gaming pc with a decent CPU ?

Otherwise I'd be thinking about some getto rack configuration, with 4-5 card earch. (save on cost and power)

These are for my mining farm.  I can do more cards per system, but then the cost for each PSU goes up or I need to do dual PSU's.  Even though managing more rigs isn't fun, I'd rather keep my costs low and make management easier through software.
If you have the space, that might be a good idea. Fitting 4 cards instead of 2 per board would take less space and need 2 PSUs, but the board would cost more than double a dual slot board.

I looked around for a few minutes, but didn't see any outstanding deals on dual slot boards, except for refurbished ones from geeks.net.


Title: Re: Cheapest AMD dual PCIe slot motherboard?
Post by: amazingrando on March 09, 2012, 08:11:57 PM
If you have the space, that might be a good idea. Fitting 4 cards instead of 2 per board would take less space and need 2 PSUs, but the board would cost more than double a dual slot board.

I looked around for a few minutes, but didn't see any outstanding deals on dual slot boards, except for refurbished ones from geeks.net.

Yeah that's the issue with four cards.  I'd rather keep things simple.

Thanks for looking around though!