BSODing while playing games.

Hello, i've bought a PackardBell TJ65 4 months ago. Since then i've been experiencing problems while playing any games. I get a random bsod. However, i reformatted the C: drive and installed a full retail Windows 7 Ultimate x64 2 days ago. Unfortunately that didn't solve my problem.

Here's what windows says:

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
Additional information about the problem:
BCCode: 50
BCP1: FFFFCDA00A2E494C
BCP2: 0000000000000000
BCP3: FFFFF80002F6874D
BCP4: 0000000000000007
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

I also attached all the files that may help, thanks for your concern.

Edit: I got 2 nvlddmkm.sys related BSOD also, I'm attaching the mini dump.

I suspect some kind of hardware problem, honestly. Let's get the software causes out of the way though.

Start by removing Bit Defender with this tool: http://www.bitdefender.com/uninstall

Reset the Windows firewall. Open an elevated command prompt and enter netsh advfirewall reset.

Install MSE: http://www.microsoft.com/security_essentials

Install these Intel WiFi drivers:  Intel® PRO/Wireless and WiFi Link Drivers-Only for Windows 7*

Then, time to work on some hardware causes. First, test your video card, because 2 dumps blamed your nVidia card. Use this tutorial: Video Card - Stress Test with Furmark

Be sure to report the temps it reports.

Next, test RAM. RAM - Test with Memtest86+

...Summary of the Dumps:

Code:

Built by: 7600.16617.amd64fre.win7_gdr.100618-1621
Debug session time: Thu Sep  9 07:52:52.482 2010 (UTC - 4:00)
System Uptime: 0 days 0:47:46.464
BugCheck 50, {ffffcda00a2e494c, 0, fffff80002f6874d, 7}
Probably caused by : ntkrnlmp.exe ( nt!CmpKcbCacheLookup+1dd )
BUGCHECK_STR:  0x50
PROCESS_NAME:  svchost.exe
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨

Okay, maybe you can run the RAM test during the night.

Video card looks good, although no hardware test is always accurate.

Let's hope no more BSODs now.

Sounds like a compatibility issue to be honest. Try Part 3 of the tutorial to find out: RAM - Test with Memtest86+