frequent BSODs

[champion-7891]

I am experiencing frequent BSODs....e.g. i simply lock windows with no background load (except the boot processes).,..when I check after 4 hours or so, I get these BSODs...

any help on this regard will be highly appreciated...
i5 2500K
P8P67 3.0
2*4GB Corsair value 1333
Windows 7 Ultimate x64 (no updates installed, fresh)

Windows Error Report:

Source
Windows

Summary
Shut down unexpectedly

Problem signature
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

Extra information about the problem
BCCode: 7a
BCP1: 0000000000000020
BCP2: FFFFFFFFC000009D
BCP3: FFFFFA800919F2C8
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1
Bucket ID: X64_0x7a_c000009d
Server information: f199927c-217b-44b0-87dd-353a8ebd4bce

 

[JGR]

I remember having weird BSODs after screen locking windows 7 shortly after it was released. It didn't happen often enough for me to fuss with my computer to try to fix it, but now I don't have the issue.

So my first reaction would be to run updates (as you indicated no updates had been applied).

 

[THRiLL KiLL]

disable sleep mode.

 

[champion-7891]

hey thanks a lot...disabling sleep mode did the trick...though a question....any idea why it caused these BSODs?