BSOD Win 7 Home Premium x64

[TDM]

I've been running Windows 7 for some time now, and every now and then, my PC will get an error after being in sleep mode for an extended period of time.

- Windows 7 Home Premium x64
- Original OS, OEM
- System Age: 1.5 years
- OS Age: 1.5 years

 

[Gyaneshwar]

Similar problem with Win 7 Ultimate 64 bit. don't know what to do? changed the HDD twice. Problem still remains. System Specs.
CPU Core i7 930
RAM 6 GB DDR 3 1600 Crossair
MB GA-X58A-UD5
HSS 500 GB WD Caviar Green 64 mb cache
nvidia GeForce 250 GPU
SMPS Cooler Master Silent Pro. 850 Wt.
Monitor 17 in CRT
MMKit 8.1 Surround Sound 5 Speakers

If U can help Thanks.
reply to REMOVED
Thanks in advance