Windows 7 - BSOD playing SWTOR after upgrading to SLI

Greetings,

Last night I installed a second Gigabyte GV-N460OC-1GI (Nvidia GTX 460) in SLI. The following is a sequence of events leading up to the BSOD, which may shed some light on the issue.

- Immediately after booting the PC, I received a "Chassis intruded, Fatal error, System halted" error. I rebooted and everything was fine.

- I installed the latest Nvidia display drivers (285.62) and enabled SLI.

- Launched SWTOR (Star Wars: The Old Republic), and after about 5 minutes, I hear a brief buzzing sound, screen turns black, and the mouse and keyboard power off. The PC reboots itself and informs me that windows was improperly shut down.

- I proceeded to start Windows (normal mode), log back into SWTOR, and the same thing happens again - BSOD after about 5 minutes. Changing the graphics setting from High to Low didn't help.

- I pulled out the second video card, tried SWTOR, and the problem was no more.

So before I return the second gfx card, I'm hoping to confirm that it is in fact a hardware issue with the card, and not the new Nvidia drivers.

Attached is the zip file with BSOD dump and performance.html (all made while in SLI).

Here are my Windows 7 details:
Microsoft Windows 7 Home Premium SP1 64-bit - OEM (installed myself)
Age of system/hardware: 1.5 years.
Age of OS installation: 1.5 years. (have not re-installed OS)

Crash message:
=======================
Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: 116
BCP1: FFFFFA80054BE4E0
BCP2: FFFFF8800FCE1AE4
BCP3: FFFFFFFFC000009A
BCP4: 0000000000000004
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1
=======================

Any insight will be greatly appreciated!

Thanks!

What if you pull out the original card and place the new card in the old card's slot? Still problems? If yes, then hardware.

I'll give that a try. Thanks.

What's your PSU rated for? You may not have enough power for both cards. Depending on the rest of your build, you may need a 1000w+ PSU.

Hmm.. I suspected that that might be the case, but all I have are the two gfx cards and 5 fans (including the CPU fans). My PSU is a Seasonic X750 GOLD 750W PSU. Figured that 750W should be sufficient.. although you could be right.

Below is a link to a psu calculator...Newegg has one too. It listed my Core 2 Quad with 2 4870s at 750 Watts and I bet your 460s use more than those.

ASUSTeK Computer Inc. -Support- Recommended Power Supply Wattage Calculator

Alas, it lists my core i7 950 with 2 GTX 460s and my 5 fans at 800W minimum. And in reality, it's probably more than that since the GTX 460s are overclocked w/ 2 fans each. Darn. So, the problem is most likely the under-powered PSU (face palm!).

Thanks, FMcLeod.

unlucky, best unplug your second card so as not to fry it, also when buying a new PSU dont skimp out! this is what is keeping your several hundred pound system alive! Secondly remember to look at efficiency rating i.e 80 plus bronze. Finally I would recommend getting 100W more than your estimated required wattage so as to leave room for inefficiency, OC's and additional HDD'/SSD' and other peripherals.
Best of luck and enjoy your 460s XD

source: mate fried his 460 by under powering it 0.o, also my friend who runs SLI 460s is okay with 850W so a 850-1000W would be your best bet, saying that his cards are both stock.

Thanks for the PSU advice, RougeR. I'll keep that in mind for my next build. In the meantime though I think I'll skip out on the PSU upgrade and instead exchange the 2nd 460 for something with a bit more muscle to replace my original 460.

Happy to help.