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Shut down

February 9, 2013 12:19:30 AM

Since I have no idea where my problem lies I have no idea exactly where to post this issue for help. I can certainly start here and maybe move to another forum if need be.

Just recently purchased a new MSI NVIDIA GeForce GTX 660 graphics card and i am experinecing a persistent system shutdown.
Let me start with system info:
CPU: Intel Core i5-3550 3.30 GHz LGA1155
OS: Win 7 64bit
PSU: Ultra X3 1000W
RAM: Patriot DDR3 32 GB
gpu:MSI NVIDIA GeForce GTX 660 2GB GDDR5 PCI Express 3.0 Graphics Card N660 TF 2GD5/OC
BIOS: F14 (since this post I have updated the BIOS)

So here is what happens. I originally had two smaller video cards (XFX GeForce 9600 x 2). I removed these cards and installed the single MSI NVIDIA GeForce GTX 660 into the 16x slot. I let Win 7 install the drivers and then installed the drivers that came with the disk. Subsequently I downloaded the GeForce experience and updated the drivers to the 310.90 drivers. The first install I accidentaly installed the audio drivers (I uninstalled them later). Everything worked fine. I was surfing without events. I was watching streaming video and movies from my HD without any problems. I turned to skyrim (the reason I bought the damn card) and within a minute of running the game the entire computer shuts down. It automatically reboots to the windows prompt for safe mode. Let me clarify...this is NOT a blue screen crash or just a crash to the desktop...this is a full shutdown and restart to the windows "safe mode" screen. I figure... maybe just first run issues... no chance. Everytime I try to run skyrim, fail! I get online and read for hours about how skyrim has this issue. Maybe it is skyrim. I run tests. I start by running problems. I run intel problems. Memtest...for problems, no errors. I run Heaven dx11....crash..the same as skyrim (I assume now that this is NOT a skyrim issue)
Not sure what is happening so i uninstall drivers for card and reinstall them (without the audio drivers this time)..same issue. I unplug everything that draws power from the PSU except the 660, a few small fans and the still crashes. I change the PCie cable wondering if there is a luck. Change PCie ports on the PSU...crash. I change the power to the card to a dual molex to 6 pin PCie...crash
I wonder if this is temperature...I run GPU temp and real tempGT... GPU never gets above 30 degrees, the CPU never gets over 45 degrees before the crash.
I have tweaked down the audio drivers to see if that was the issue and no change.
I have been reading forums for the last several days to weeks and have tried everything I can think. I have a 1000 watt PSU and I have to think there is NO WAY I need more power. I start checking voltages: 5.03, 12.53, 3.38.
I have manually set the grapiics card to run the fan at 100% even though the temps register normal, it crashed. I dial down the voltage to the card, crashed.
Under normal circumstances I would say that it must be the card and I need to return it...except that this is the second card. I had a new EVGA GeForce GTX 660 SUPERCLOCKED that I installed before this with EXACTLY THE SAME PROBLEM. It would be fine for everyday issues but once I tried to run Heaven or skyrim it would crash. I did all the same stuff with that card as well (reinstall drivers, measure voltages, etc)
I do have a few things attached to the power including several hard drives, 2 optical drives and fans but as I mentioned, even with just about everything disconnected from the PSU except the HD with windows and the graphics card, is still crashes. I calculated my power requirements...should only need about 450W, I have 1000W. I had originally attached power to the ATX4P PCIe power connector (SATA) thinking I would give it more power and that was not helping. Subsequently I disconnected that extra power (since I only have one video card) thinking that might help, but it did not.
I reverted all of the motherboard BIOS settings back to stock settings - no help. I am about out of ideas at this point and could use some input.

I had updated my BIOS and made a bunch of changes in the BIOS but to no avail. It really seems like a problem with power somehow but I dont know how. I rechecked my voltages again, this time while running Skyrim, a game notorious for making my system crash. All the voltages during the game...well within normal limits. After that I uninstalled the audio drivers and reinstalled several other drivers as well without any luck. I have used the afterburner program to set profiles which limit the voltage and have dropped as low as 80% withou luck.
Its getting to the point where I would not even know where to go next.

Specs again:
Motherboard Model Name : GA-Z77X-UD5H-WB WIFI
M/B Rev : 1.0
BIOS Ver : F14
VGA Brand : MSI Model : N660 TF 2GD5/OC
CPU Brand : Intel Model : i5 Speed : 3.30 ghz
Operation System : Win 7 64-bit SP : 1
Memory Brand : Patriot Type : ddr3
Memory Size : 32GB Speed : 1333MHZ
Power Supply : 1000 W

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