Dedicated Mining Rig

[Vwlopez3]

Hello ive been mining along at a respectable rate of 1ghash but i want more power!!! I was wondering if these specs would work
4x5850 Sapphire Extreme
1500w Silverstone PSU
Amd Sempron 140
MSI 890fx Motherboard (5pci-e x16 size 1 pci-e x1)
4gb generic ddr3
With the possibility of transferring my 1x5870 and another 5850 to the dedicated rig. Will this be enough power and can all 6 pci lanes work? I would have to use linux right?

Can anyone suggest any better components?
PS im planing on putting the rig on a custom built platform in the basement with technopagan's risers
Any advice is greatly appreciated.

[Vwlopez3]

Also what would be a better buy a diamond 5870 @$220 or Sapphire @152?
Is the PSU overkill cause its pretty expensive and hurting my budget
Thank you in advance-
Thomas

[Convery]

You can only use 4 GPUs in windows and 8 in linux, and just FYI, with good cooling the 5850 can push over 400MHash each without much of a problem..

I'd got for a 1200W, just for good measure and some room for further expansion..

[grndzero]

Hello ive been mining along at a respectable rate of 1ghash but i want more power!!! I was wondering if these specs would work
4x5850 Sapphire Extreme
1500w Silverstone PSU
Amd Sempron 140
MSI 890fx Motherboard (5pci-e x16 size 1 pci-e x1)
4gb generic ddr3
With the possibility of transferring my 1x5870 and another 5850 to the dedicated rig. Will this be enough power and can all 6 pci lanes work? I would have to use linux right?

Can anyone anything component that better?
PS im planing on putting the rig on a custom built platform in the basement with technopagan's risers
Any advice is greatly appreciated.

5850 and 5870 take up 2 slots of space on the board and the case. 4 is the maximum number of cards you can put in 1 case unless you do the PCI-E extenders.

[grndzero]

You can only use 4 GPUs in windows and 8 in linux, and just FYI, with good cooling the 5850 can push over 400MHash each without much of a problem..

I'd got for a 1200W, just for good measure and some room for further expansion..

5850 pulling OVER 400? I saw one getting 390 in an insane overclock. Haven't seen over 400 though.

[Vwlopez3]

5850 and 5870 take up 2 slots of space on the board and the case. 4 is the maximum number of cards you can put in 1 case unless you do the PCI-E extenders.

right which is why i said i would use PCI-E riser or extender, and a custom set-up to hold the card with some better spacing. I would also be willing to buy a skeleton chassis with custom spacing if anyone knows were to buy one.
PS took me awhile to figure out how to quote

[fasti]

I found: http://www.asus.com/Motherboards/AMD_Socket_939/A8N32SLI_Deluxe/#specifications with everything working. Would just need to get new PSU for better graphics card.

Would this work with 6990? Don't think I can use crossfire setup on that mobo, but two cores on one card should work?

Electricity is free for me.

Edit: I already have 6950 on my main computer, if that will works and 6990 doesn't, I guess I can just put 6950 to old one and use 6990 on my main computer. Any problems gaming with 6990 and mining at the same time(directx9 games)?