Random Computer Lockup

Computer Randomly locks up about 4-5 times a month with nothing running but a screensaver. I've updated all the Hardwares drivers, but still no luck. I've even ran all diagnostics on all the hardware, everything is good. I've been battling this for over a year now. Here is what the report tells me;

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional information about the problem:
BCCode: 124
BCP1: 00000000
BCP2: 85D5A4DC
BCP3: 00000000
BCP4: 00000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Anybody have an answer?

Thanks for the reply. I spray out my computer once every couple of months, and all the fans are working (cpu, PS, & case). I also turned off hybernation day 1 due to the numerous complaints when it trys to start back up. I will try powercfg and see what happens. Thanks again.

even while using powercfg, computer is still freezing. I'm certain its a hardware issue, but I can't pinpoint which item. All drivers are up to date. Any ideas will help.

Here's my dump file.......
Type referenced: pshed!_WHEA_ERROR_RECORD_HEADER
Your debugger is not using the correct symbols ***
*** ***
*** In order for this command to work properly, your symbol path ***
*** must point to .pdb files that have full type information. ***
*** ***
*** Certain .pdb files (such as the public OS symbols) do not ***
*** contain the required information. Contact the group that ***
*** provided you with these symbols if you need this command to ***
*** work. ***
*** ***
*** Type referenced: nt!_KPRCB ***
*** ***
*************************************************************************
Probably caused by : hardware

Followup: MachineOwner

problem solved. This website gave me exact instructions on analyzing my dump file.
How to find out what is causing a Blue Screen of Death (BSOD) by using the kernel debugger tools - David Overton's Blog - David Overton's Blog and Discussion Site