It definitely sounds like a hardware problem.
Are your sure that the RAM and CPU are compatible with the board?
Are you sure that the RAM and CPU are good?
Are you using SATA drives?
Also the PSU? Is it known to be good?
What were the verbatim errors that you were getting?
Are the fans all working? With the case open do you notice any abnormal heat off the CPU fan or GPU fan or PSU fan?
Also: look in your
Event viewer: rt. click
My Computer then click
Manage then
Event Viewer.
Or:
Administrative Tools/Event Viewer or
Start/Run/ eventvwr
Open the
system as well as the
application tabs & look for
X errors. Click error line for details.
Post back the
source &
event id &
Description especially of errors that seem to coincide with this issue.
Also check the
Information lines that might coincide with this issue.
How to view and manage event logs in Event Viewer in Windows XP