Unexplainable freezes with Ivybridge

[jokerjake]

I recently upgraded from an ancient socket 775 rig and decided to take the leap to a new Ivybridge i7 with a Z77 motherboard and DDR3 ram to match.

Only thing is now after having everything set up correctly - I've been experiencing random full computer freezes of which I'd have to reset the computer (which actually doesn't reset straight away, it takes a few minutes, then decides to reset). And yes, I'm getting no sort of blue screen either.

My specs are as follows:
CPU - Intel Core i7 3770
RAM - 8GB Kingston DDR3 HyperX
MOBO - Gigabyte Z77-H77-D3H
HD1 - Corsair 64GB SSD Sata 3.0
HD2 -Samsung 750GB HDD Sata 2.0

Other notes: I'm currently using the stock cooler for the i7 as my previous CoolIT Eco v1 does not have a bracket that supports Z77 motherboards. The temps while these freezes occurred were nothing too high.

 

[jokerjake]

Can you access the event logs and see what it is reporting. May help to indicate the problem.

Event logs?

Also, I've just done a memtest off a disc and there were no errors - so thats the memory out of the question I guess...

 

[jokerjake]

3 Critical Errors in the last 24 hours.

Source: Kernel Power: Event ID 41
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

Thats all there is under critical... Where exactly am I looking?