Download these software programs:
Tuneup Utilities 06 : its a all in one package to keep ur system fast and organized
Microsoft Memtest: check ur RAM for any errors
http://www.softpedia.com/get/Tweak/Memory-Tweak/Microsoft-Windows-Memory-Diagnostic.shtm
Some HD programs: diagnose/ repair
Fujitsu ATA Diagnostic Tool 6.61
Fujitsu SCSI Diagnostics 2.6
IBM-Hitachi Drive Fitness Test
Maxtor Powermax 4.22
Maxtor SCSIMax
Quantum Data Protection System
Samsung Diagnostic (SHDiag)
Samsung Drive Diagnostic Utility (Hutil)
Seagate SeaTools desktop
Seagate SeaTools entreprise
Western Digital Data Lifeguard 5.04f
Western Digital DLG for Windows 1.07.01
Hardware tips;
-air blow ur computer clean from bust using Compressed air.
-replace Thermal paste
-add a fan for better cooling
- PSU go here to find out how much watts ur using (if ur close to the Max watts ur PSU can handle buy one with more watts)
http://www.extreme.outervision.com/psucalculator.jsp