System Crashing

Hi My name is David i own a Custom Gaming Machine the Spec's are as follows

Processor: AMD Athlon 64 x2 Dual Core Processor 4800+ 2.50 Ghz
3GB RAM
64B Win 7 / Win xp Duel Booted (on a 500gb Harddrive)



There are 2 Active harddrives in the Machine at the moment

500gb Main HD and 1TB External HD

The external Contains 90% of the Items on the machine some Games are Run Directly From the TB harddrive

(although it is set up as an Internal it was removed from its case by my Previous Tech.)


i know my way around a computer and how to re-assemble BUT Without Proper Advice i do not Attempt to do so.


Issue at hand:

Both of the Harddrives Seem to Heat up Extreamly hot During Game play im not sure if this is normal (also with Regular use of the pc over 2-3 hours)

(regular use consists of Browsing the internet Typing Files and or Windows basic games.)

The pc will Crash out of no were No blue screen no Reset Just crash. Dead to the world.. It will reset as if nothing had happened.

This machine is used on a day to day Basis and some sort of assistance. would be appreciated

Thank you

~David.