Kingston HyperX T1 Series (2 x 2GB) - x4 (for a total of 8gig)
GeForce 8800 Ultra (yes it is an Ultra) - Latest nVidia Drivers
Western Digital Caviar Black WD6401AALS 640GB 7200 RPM SATA 3.0Gb/s
Sound Blaster XF-i Xtreme Gamer
Windows 7 64-Bit
Ok I have Left 4 Dead 2 and COD: Modern Warfare 2 installed. When I switch from one to another (after playing one then switch to the other) the PC will reboot ramdomly during game play. Also after playing either game for a while (no realy time studies but say 5 - 60 mins) the PC will reboot.
Uninstalled the XF-i and Video drivers and reinstalled both using and not using Safe Mode. Still happens.
All drivers and Windows are up-to-date
Now this may sound like I found the problem but just want to ask the experts for their opinion...
I have 4x 240-pin Memory slots. Each slot has 1 of the 2GB modules in it.
Slot 4 _______ (Bank 2)
Slot 2 _______ (Bank 1)
Slot 3 _______ (Bank 2)
Slot 1 _______ (Bank 1)
I think this is the numbering, but I am sure of the Banks.
With all 8GB of ram installed I ran this program...
After about 5-10 minutes the PC rebooted. I removed the Ram from Slots 3 and 4 (Bank 2 RAM) and re-ran the test and again it re-booted in about 5-10 mins. I moved this same memory to Bank 2 and again it rebooted after 5-10 minutes.
So I took out these 2 sticks and put in the other 2 (put them in Bank 1) I ran the test for about 30 minutes with no errors reported and no reboot.
Does this sound like 1 or both of the first 2 memory modules are bad?
NOTE: DUring the testing I used the windows sidebar (CPU and RAM meter) and ran 2 instances of the memtest so that the RAM meter read 97% full.
I am not sure it will or will not only happen in these games. These are just the only ones I have been playing.
Also I did notice that randomly I get a point while playing that screen locks up and the sound will freeze in a "machine gun" studder. The only way out is to push the power button.
Alos last night while trying to find the problem I had the side of the case off (with the 2 suspected good sticks in place) I was running the MEMTEST and whent to touch the RAM heatsink to see if it was maybe overheating and as soon as I put a bit of pressure on the RAM the machine rebooted. So while it was rebooting I touched it again very lightly and POW it rebooted again. So it looks like I may have a cold solder joint on the MB or maybe a bad socket.