BSODs still a problem

[gilead7]

Still having various BSODs on my aged system. Even though I have used memcheck a couple of times with no problems found and used chkdsk to make sure all is well. Again, no problems found. Since I only have 2 gigs of memory, is it at all possible that the OS is trying to access memory that doesn't exist, thus cause the errors?

 

[rgd1101]

Check for overheat or psu failing?

 

[gilead7]

Check for overheat or psu failing?

I was wondering about the PSU. It is old, but the fan still spins. As for overheating, I've been running a fan on high AND an air conditioner, so I'm not sure if heat is the issue.