shutting down problem

[Paul Adams]

The only thing I'm concerned about is that you have dump logs, normally if the computer was overheating the computer would just turn off and wouldn't cause a BSOD...

I would guess the shut-off threshold in the BIOS has the temperature set too high - so it is helping prevent against physical damage to the CPU, but after it is already outside its normal operating boundaries.
The randomness of the bugchecks would back up the overheating root cause theory, as would the "shutting off instantly" symptom.

[ezri]

cpu temp about 50

and 4 cores round about 44 so deff improvment and thats with running a couple of things

Excellent! Those tempeatures are MUCH better, hopefully that was all it was, let us know how you get on in a few days and if you get any more reboots then just post back. Due to the new temperatures I personally wouldn't bother with a 3rd party CPU cooler as you're well within safe limits. If you do want one though, I've checked out the dimensions of you case which are:

Dimensions:
20.5 x 8 x 17.75 IN (LxWxH)
52.25 x 20.5 x 45 CM (LxWxH)

20.5 CM is a good size width, even a Scythe Ninja is only 15CM tall (add about 3-4CM more for the panels, motherboard tray etc you're at 18 - 19CM). I would avoid the Ninja due to the extra sizes you need to add but coolers that are well within size limits are:

£15 - AC Freezer 7 Pro
£28 - Scythe Mini Ninja
£28 - Thermalright Ultima-90 ** No Fan **
£30 - Zalman CNPS9500A-LED
£37 - Zalman CNPS9700-LED

[Ciber]

If you're not overclocking the Arctic freezer is cheap and realtively easy to install.