|If the drive passes the SMART check then it is probably OK. SMART has a series of checks that it performs. The fitness tests do the same thing only in more detail. If any of the tests are out of range they are reported. |
I never asked before but have you checked the BIOS settings for when to shut down the computer. There is usually a temperature setting for the CPU, for instance. If you exceed that setting the computer may shut down.
You need to monitor the temperatures and voltages in real time by having HWMonitor open in the tray. You can then see what happens when stressed. The temps might spike or the 12V rail could fall. Either condition might cause a reset.
Going back to the memory. Every component in your computer uses different blocks of RAM. If there is an issue with hardware the computer may not reset until that hardware/memory is accessed.
Your specs state 4GB of RAM. Is that 1, 2 or 4 sticks. If more than 1 are they perfectly matched?