No new components, so the power shouldn't be a problem. I guess it could be overheating, although the pc is in the coolest room in the house where its usually around 70 or cooler. Here's the error stuff it gives me after it reboots -

Error signature
BCCode:77 BCP1:C000009C BCP2:C000009C BCP3:00000000
BCP4:04101000 OSVer:5_1_2600 SP:2_0 Product:768_1

Error Report Contents
The following files will be included in this error report:
COCUME~1\Owner\LOCALS~1\Temp\WER1cda.dir00\Mini121704-01.dmp
COCUME~1\Owner\LOCALS~1\Temp\WER1cda.dir00\sysdata.xml