Right, I'm having a problem with one of the systems here. Occasionally in windows you will hear the hard disk spin down and the system reboots. Sometimes it flashes up a blue screen for about 1/10th of a second beforehand.
This doesn't happen when the FSB is set to 100mhz.
I've run Memtest86 with the FSB at both 100 and 133. At first it gave problems at 133, but I swapped the DIMM slot to the other one, and it works now. I figured that would be the end of the problems. Not so.
The CPU isn't overheating, stays in the low 40's crunching FAD.
I did notice the voltage is at 1.58v rather than the standard for the chip (1.6 iirc)
Also the 3.3v line is down to 3.2v
This is leading me to suspect the PSU. However, the system was working perfectly before I upgraded the CPU (was a Duron 1g) so it could as easily be a cache fault or something on the cpu.
What do you guys think?
System Specs:
ECS K7S5A ver 1.0
XP2200 Tbred
512mb Crucial PC133 (I've had this ram stable faster than 150mhz so I don't think that's it)
Noname 300w PSU
Win2k Pro.