I am using an intel D845WN motherboard which i got in December 2001. It is running on a Pentium 4 2.40GHz whose CPU Core voltage is supposed to be 1.52V and CPU I/O voltage 1.50V. Just yesterday, my system starts to freeze then shutdown unexpectedly...therefore loosing all my data i was working on. Later i installed Intel Active Monitor and found that whenever the CPU Vcore fluctuates, the system will go down in a matter of seconds later. On normal case, the Vcore is about 1.494v to 1.506v. However, it can drop to 0.7v to 1.2v after some minutes of usage, and when that happens, its bye bye. I changed my PSU to a brand new "trusted brand" 450W PSU but it was to no avail.
On idle load, the CPU temp is 36-39 deg celsius. On max load its 46-49 deg celsius. Btw i am using artic silver 5 with stock HSF assembly.
I need to know who is the culprit now, is it the processor or is it the motherboard's voltage regulator. I need help urgently! I have many assignments yet to be completed. Thank you very much!