Help Please

Just built a new rig for my friend the problem is that it shuts down after its been running for a bit its an amd phenom 965 be, asrock micro atx mobo, seagate 500bg hdd 600 watt cx600 psu, gimmie a hand here haha im installing new est win 7 updates oh and here is the error message in the event viewer thanks.

+ System

  - Provider

   [ Name]  Microsoft-Windows-Kernel-Power
   [ Guid]  {331C3B3A-2005-44C2-AC5E-77220C37D6B4}
 
   EventID 41
 
   Version 2
 
   Level 1
 
   Task 63
 
   Opcode 0
 
   Keywords 0x8000000000000002
 
  - TimeCreated

   [ SystemTime]  2013-02-15T14:29:04.104439400Z
 
   EventRecordID 1617
 
   Correlation
 
  - Execution

   [ ProcessID]  4
   [ ThreadID]  8
 
   Channel System
 
   Computer Venich-PC
 
  - Security

   [ UserID]  S-1-5-18
 

- EventData

  BugcheckCode 0
  BugcheckParameter1 0x0
  BugcheckParameter2 0x0
  BugcheckParameter3 0x0
  BugcheckParameter4 0x0
  SleepInProgress false
  PowerButtonTimestamp 0

 

Try reinstalling windows, and see if that fixes the issue. Did you check all the parts before firing up your computer?