HSF replacement for an Emachine T5212

[rekojenasni_787]

Hello,

I was given a computer by a friend and it's an Emachine T5212 with overheating issue. It's equipped with a low end Pentium D 2.66ghz processor. I have cleaned out the dusts, removed the dried up thermal pad that was on it and applied arctic silver ceramique. Temperature in the bios says 59-63c for the processor and the motherboard sensor is 39-41c. Still pretty hot (it shuts down 5min after booting into WindowsXP) so I want to upgrade the heatsink for it. The problem is the current heatsink bolts onto the motherboard (tiny screw-in hole) and there's no backplating. I believe it's a socket 775 but do you think I will be able to install a new heatsink with/without a backplate?

Such as this one for example: http://www.newegg.com/Product/Product.aspx?Item=N82E16835154002

edit: culprit to shutting down might be the power supply since its a common problem.

 

[bwang]

If the stock heatsink used to work, I doubt its the cause of your troubles now...lumps of shaped aluminum don't just go off and kill themselves on a whim
Does the motherboard have the standard LGA775 mounting holes? There's no way to mount a new cooler without them.