Crashing in games after OCing: what should I change?

Hello people. I am a first time poster here.

I have been trying to OC my system. I use my favorite 3D game to test the stability of the system.

I have had a few crashes. The following is copied from one of the mdmp files:



Microsoft (R) Windows Debugger Version 6.2.8229.0 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\WZ\Desktop\WERB665.tmp.mdmp]
User Mini Dump File: Only registers, stack and portions of memory are available

Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows 7 Version 7601 (Service Pack 1) MP (4 procs) Free x64
Product: WinNt, suite: SingleUserTS
Machine Name:
Debug session time: Sat May 19 00:12:29.000 2012 (UTC + 8:00)
System Uptime: 0 days 0:16:04.312
Process Uptime: 0 days 0:04:23.000
................................................................
.............................................................
Loading unloaded module list
.....................................................
This dump file has a breakpoint exception stored in it.
The stored exception information can be accessed via .ecxr.
ntdll!NtWaitForMultipleObjects+0xa:
00000000`77c318ca c3 ret
0:000> .ecxr.
rax=0000000000000000 rbx=000000001e992c20 rcx=4aefa0895ada0000
rdx=0000000000000018 rsi=0000000000000000 rdi=0000000000000018
rip=000007fef1f25d82 rsp=000000000012ebc8 rbp=000000000012ecd0
r8=0000000000000000 r9=0000000001810001 r10=0000000000000000
r11=000000000000ffff r12=0000000000000000 r13=000000001ed73370
r14=0000000000000000 r15=0000000000000001
iopl=0 nv up ei pl zr na po nc
cs=0033 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000246
D3DX9_43!_security_check_cookie+0x12:
000007fe`f1f25d82 7503 jne D3DX9_43!_security_check_cookie+0x17 (000007fe`f1f25d87) [br=0]
^ Extra character error in '.ecxr.'

--------------------------------------------------------------------------

Can you decode that for me, please? What is the cause of the crash? Is it my CPU is under-volted, or does it have to do with the memory? What should I change to cure this problem?

The system is otherwise stable, even under Prime95 and IntelBurnTest.

Thanks a lot guys.

We do need the DMP file as it contains the only record of the sequence of events leading up to the crash, what drivers were loaded, and what was responsible.

Please attach the DMP files to your next post not to post one.

If you are overclocking STOP

You may be able to get the DMP files without crashing by booting into safe mode (F8) with networking.

To enable us to assist you with your computer's BSOD symptoms, upload the contents of your "\Windows\Minidump" folder.

The procedure:
Quote:
* Copy the contents of \Windows\Minidump to another (temporary) location somewhere on your machine.
* Zip up the copy.
* Attach the ZIP archive to your post using the "paperclip" (file attachments) button.
*If the files are too large please upload them to a file sharing service like "Rapidshare" and put a link to them in your reply.

To ensure minidumps are enabled:
Quote:
* Go to Start, in the Search Box type: sysdm.cpl, press Enter.
* Under the Advanced tab, click on the Startup and Recovery Settings... button.
* Ensure that Automatically restart is unchecked.
* Under the Write Debugging Information header select Small memory dump (256 kB) in the dropdown box (the 256kb varies).
* Ensure that the Small Dump Directory is listed as %systemroot%\Minidump.
* OK your way out.
* Reboot if changes have been made.