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GTX570 or SLI Question

post #1 of 4
Thread Starter 
Okay, I have 2 gtx 570's that until recently had been running fine in SLI, except for getting stupid hot and thus stupid loud.

I decided to solve that by dumping their useless reference coolers and fitting up Antec Kuhler 620's to each.

When installed 1 at a time, they both work perfectly, with max temps literally half what they used to be (about 45 degrees is hottest so far)

When installed 2 at once, the pc can't even recognise that a nvidia card is installed. It comes up at 800x600 resolution on 1 screen only. Physically, they are not fitting too well (the hoses from the 620 on the high side is forcing them apart by about 15 mm (5/8") more than normal) but I can't use the other pcie slot on my m/b because the bottom of the card is sitting right over where the front panel connectors live on the motherboard and it won't seat. I tried pushing them together and putting a bit of stress on the hoses, but it didn't make any difference. still failed to recognise the cards.



Is it likely that the position of the cards (being pushed apart at the top) is causing them to not work?

I AM using a 750W psu, which many think is not up to the task, but it IS a corsair with single 12V rail, has worked fine for almost a year, and at worst has only drawn 550W at the wall (during maxed out gaming). At desktop it's only drawing 260 or 280 or so I think, though I havent tested it since I installed the little self contained water cooling things..
Gaming and work
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7-980X @ 4.32GHz Gigabyte X58A-UD3R GTX780 OC 12G Kit (4Gx3) DDR3 1600 Corsair 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 2 120GB DVD/Bluray Writer 2xRX360, D5, XPSC Raystorm Windows 7 64 Pro 
MonitorPowerCase
S24A450BW x 3 @ 5760x1200 Seasonic Platinum 1000W Corsair 800D 
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Gaming and work
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7-980X @ 4.32GHz Gigabyte X58A-UD3R GTX780 OC 12G Kit (4Gx3) DDR3 1600 Corsair 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 2 120GB DVD/Bluray Writer 2xRX360, D5, XPSC Raystorm Windows 7 64 Pro 
MonitorPowerCase
S24A450BW x 3 @ 5760x1200 Seasonic Platinum 1000W Corsair 800D 
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post #2 of 4
It might be a short on the pcb if you are having those sort of problems. What kind of TIM did you use?
post #3 of 4
Thread Starter 
I'm using a sort of no-name brand that I've had forever, because I decided at 8pm one night to do this (3 kids, gotta do all the fun stuff when they go to bed). Either way, update time, I got scared of the pressure on the cards sitting right next to each other, plus the fact they weren't working properly anyway. So I modded my case, and the heatsink frame, that was hitting the front panel connectors. I used a 4" angle grinder with a cutting disc for the modding, cause I was p'd off at the whole thing and had had a couple of glasses of red. Long story short, the card fit nicely in the bottom slot with the bottom of the case cut out and the card modded in a couple of different ways. Used wifey's nice vacuum cleaner to make sure I hadn't left any conductive dust anywhere (I DID cover up the inside before I hit it with the 4"), plugged it in, and voila! Temps now max out at 60 degrees rather than 91, on both cards, while running SLI at max settings in NFS hot pursuit! Also can run Everquest 2 across all 3 monitors at 5760x1200 on extreme performance at 60 degrees. That's awesome.

TL:DR. Red wine + angle grinder + 1mm cutting disc + vacuum cleaner = problem solved!
Gaming and work
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7-980X @ 4.32GHz Gigabyte X58A-UD3R GTX780 OC 12G Kit (4Gx3) DDR3 1600 Corsair 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 2 120GB DVD/Bluray Writer 2xRX360, D5, XPSC Raystorm Windows 7 64 Pro 
MonitorPowerCase
S24A450BW x 3 @ 5760x1200 Seasonic Platinum 1000W Corsair 800D 
  hide details  
Reply
Gaming and work
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7-980X @ 4.32GHz Gigabyte X58A-UD3R GTX780 OC 12G Kit (4Gx3) DDR3 1600 Corsair 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 2 120GB DVD/Bluray Writer 2xRX360, D5, XPSC Raystorm Windows 7 64 Pro 
MonitorPowerCase
S24A450BW x 3 @ 5760x1200 Seasonic Platinum 1000W Corsair 800D 
  hide details  
Reply
post #4 of 4
Quote:
Originally Posted by mobkeyman View Post

I'm using a sort of no-name brand that I've had forever, because I decided at 8pm one night to do this (3 kids, gotta do all the fun stuff when they go to bed). Either way, update time, I got scared of the pressure on the cards sitting right next to each other, plus the fact they weren't working properly anyway. So I modded my case, and the heatsink frame, that was hitting the front panel connectors. I used a 4" angle grinder with a cutting disc for the modding, cause I was p'd off at the whole thing and had had a couple of glasses of red. Long story short, the card fit nicely in the bottom slot with the bottom of the case cut out and the card modded in a couple of different ways. Used wifey's nice vacuum cleaner to make sure I hadn't left any conductive dust anywhere (I DID cover up the inside before I hit it with the 4"), plugged it in, and voila! Temps now max out at 60 degrees rather than 91, on both cards, while running SLI at max settings in NFS hot pursuit! Also can run Everquest 2 across all 3 monitors at 5760x1200 on extreme performance at 60 degrees. That's awesome.
TL:DR. Red wine + angle grinder + 1mm cutting disc + vacuum cleaner = problem solved!

Good for you, man!thumb.gif
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