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GTX 560Ti SLI PC shutting down

Last response: in Graphics & Displays
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March 22, 2013 4:09:50 AM

Hello everyone,
I have an older Dell XPS 630 which I recently updated with two GTX 560Ti's; I realize the PC is closer to the scrap pile than the upgrade list but I got the two cards for a song. Anyway, I have an issue where the PC is just shutting down about a minute into almost any modern game (Crysis 2 or 3, Skyrim, Dishonored) and I can't seem to figure out what is happening. I've updated the Mobo firmware, have a good 750W PSU, have tried different version of Nvidia drivers, re-seated everything, etc... My real question is if there is any way I can run some kind of diagnostics to log what might be happening at the time of shutdown; not a thing shows up in any log that I know about. It certainly seems power-oriented with the sudden shutdown but I really don't know. I can run one card with SLI disabled (games at much lower settings) and it does not happen. Any ideas (besides just building a new system) would be greatly appreciated.

More about : gtx 560ti sli shutting

March 22, 2013 4:31:13 AM

Did you just add the two cards to the system? Some motherboards require BIOS updates in order to accommodate new hardware configurations. You say you've completed this and tried the latest drivers. The motherboard on the XPS 630 is SLI-compatible.

Do you have an SLI bridge connected? Check the bridge and confirm the attachment to the cards.

If that doesn't do the trick, there could be a problem with one of the cards. Have you tried each individually in the system? The reason I ask is I had a video card that would shut the PC down. I recognized this immediately after installing it, exchanged it for a new one and the problem went away. Does one shut the system down where the other does not?

Also, just curious as to the make/model of the PSU? Do you know how many Amps are available on the 12V+ rail(s) (should be a label on the PSU)?

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March 23, 2013 6:51:42 AM

ubercake said:
Did you just add the two cards to the system? Some motherboards require BIOS updates in order to accommodate new hardware configurations. You say you've completed this and tried the latest drivers. The motherboard on the XPS 630 is SLI-compatible.

Do you have an SLI bridge connected? Check the bridge and confirm the attachment to the cards.

If that doesn't do the trick, there could be a problem with one of the cards. Have you tried each individually in the system? The reason I ask is I had a video card that would shut the PC down. I recognized this immediately after installing it, exchanged it for a new one and the problem went away. Does one shut the system down where the other does not?

Also, just curious as to the make/model of the PSU? Do you know how many Amps are available on the 12V+ rail(s) (should be a label on the PSU)?



ubercake, thank you for the reply and the tips. It turns out the PSU was a replacement from Dell abd a POS; it was only something like 18 amps so no wonder the thing was cutting out. I ran out this morning and got a Corsair with 62A and haven't had a problem yet. Thanks again for your help.
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March 24, 2013 9:52:15 AM

Glad to hear it!
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