[gamesguru]

You can check the title for system info or my system in my sig for the details, but basically the problem is that my computer will not boot up if I put in two of the 9800 GX2 cards.

If I put only one of the graphics cards in and connect the power cords to it, my system runs fine. But when I insert the second one, connect power to it, and bridge the two cards with the supplied link cable my computer never boots or makes the annoying boot BEEP.

I showed this to a geeksquad friend of mine and he had no idea what was wrong, so if you can solve this you are a computer genius.

Thanks in advance.

 

[G|F.E.A.D|Killa]

test each card by them selves. and also what PSU do you have. you may not be getting enough power.

 

[Aaroman]

what power supply are you using?

 

[gamesguru]

Quote:

Originally Posted by G|F.E.A.D|Killa test each card by them selves. and also what PSU do you have. you may not be getting enough power.

Each card works fine individually. The power supply has 950 W, I think that should be enough.

 

[intelfan]

What brand is it?

 

[almighty15]

Crappy PSU, bad PCIEX slot on mobo, bad bios.

Thats what im guessing

 

[gamesguru]

Quote:

Originally Posted by intelfan What brand is it?

Graphics cards: 9800 GX2's
Motherboard: EVGA LGA 775 NVIDIA nForce 790i SLI FTW ATX
Power supply: COOLMAX 950 W SLI Ready

 

[Aaroman]

Quote:

Originally Posted by gamesguru Graphics cards: 9800 GX2's Motherboard: EVGA LGA 775 NVIDIA nForce 790i SLI FTW ATX

are you sure you are using the correct PCI-E slot. I though Nvidia boards had issues with using PCI-E slots i the right order when adding cards

 

[Vlasov_581]

quad sli? you better have atleast 2 28amp 12volt rails

 

[almighty15]

Just found a review of your PSU :

'Combining 90 amps across the quad 12 volt rails '

Should be enough juice for x2 GX2's

 

[intelfan]

I'm pretty sure that PSU has two 20AMP rails and two 25AMP rails for a total of four rails.

 

[Aaroman]

I agree, the PSU is enough for the job. Further troubleshooting needs to happen to figure it out. Do what somebody said and try each card by itself

 

[gamesguru]

Quote:

Originally Posted by almighty15 Just found a review of your PSU : 'Combining 90 amps across the quad 12 volt rails ' Should be enough juice for x2 GX2's

How do I change those? In BIOS under system voltages?

 

[gamesguru]

Quote:

Originally Posted by Aaroman I agree, the PSU is enough for the job. Further troubleshooting needs to happen to figure it out. Do what somebody said and try each card by itself

Both cards work perfectly on their own, I just tried both.

 

[subliminally incorrect]

power it on then hit the reset button on your case... try it it solved my 9800GX2 problem when i first got it

 

[Wahkee]

Quote:

Originally Posted by gamesguru How do I change those? In BIOS under system voltages?

you cant change those.

Try each card on the 2nd pci-e slot and 3rd slot. Could be something wrong with the slot on the mobo itself

 

[gamesguru]

Quote:

Originally Posted by Wahkee you cant change those. Try each card on the 2nd pci-e slot and 3rd slot. Could be something wrong with the slot on the mobo itself

Just tried all 3 slots, all work fine.

 

[almighty15]

Quote:

Originally Posted by gamesguru Just tried all 3 slots, all work fine.

I think it could a bios issue, clear CMOS and failing that check the boards site and see if there is BIOS update or somthing

 

[CL3P20]

Quote:

I showed this to a geeksquad friend of mine and he had no idea what was wrong,

Sig this someone

Have you tried them without the bridge in place..but other wise fully connected? Or tried swapping the power plugs from the PSU to the GPU's?

Actually I thought this was funnier..->

Quote:

so if you can solve this you are a computer genius.

 

[c00lkatz]

^^^ lmao I thought the same thing