I built the following system: Asus P5ND2-SLI Deluxe (Newest BIOS Flash) Intel 3.0GHz Dual Core 2x MSI NX6800 2x Seagate 80GB SATA Striped RAID 2x 1GB Kingston DDR2 480W Antec True Power PS The PC will lock up for no apparent reason. Moving the mouse to the start button can lock the PC solid, requiring a reboot. When I first built the system I ran 3DMark on it and the software ran flawlessly. I was usung a Monitor with a 4:3 dimension. I switched to a 16:9 monitor and now it locks up running 3D Mark as well. Any suggestions where I might look for a solution. ~TR Alter Ipse Amicus

Process of elimination. Take the covers off & make sure all the fans run at speed, no slowing down or jerky spinning. Remove all cards & replace 1 by 1. This is a small extract from the links provided. http://www.ultratech-llc.com/KB/ASP/FileView.asp?File=/KB/BSOD.TXT http://www.ultratech-llc.com/KB/?File=BSOD.TXT http://www.microsoft.com/technet/treeview/default.asp?url=/technet/prodtechnol/winntas/tips/techrep/bsod.asp http://support.microsoft.com/?kbid=325011 http://windows.about.com/library/weekly/aa030599.htm http://windows.about.com/gi/dynamic/offsite.htm?site=http://support.microsoft.com/support/kb/articles/q192/4/63.asp http://labmice.techtarget.com/windowsxp/TroubleshootingXP/default.htm http://www.labmice.net/WindowsXP/TroubleshootingXP/error.htm http://sft-cyber.com/stoperrors.htm http://aumha.org/win5/kbestop.htm Troubleshooting Windows STOP Errors (BSOD) and Freezes The following issues are easily responsible for 99% of all system instability issues, particularly with Windows: • Bad or Flaky RAM • High CPU/Case temperatures (Insufficient cooling) • Bad Drivers (usually with el-cheapo hardware) • Inadequate or Dirty Power • Overclocking (some devices cannot run out of spec) • Improper Permissions/Rights (results in Access Denied) • Dirty Upgrade from Win9x/ME to 2000/XP • Virus Infection (can result in a wide variety of problems) • Incorrect jumper settings on your hard drive • Improperly terminated drivers and controller • Disabled or Misconfigured Services SYMPTOMS OF COMMON ISSUES • Bad Drivers ............ BSOD (Blue Screen of Death) or Spontaneous Reboot • Overheating ............ Spontaneous Reboot or System Freeze • Bad/Flaky RAM .......... Spontaneous Reboot or System Freeze or Failed Install • Dirty Power ............ Spontaneous Reboot or System Generated Errors • Inadequate Power ....... BSOD or Spontaneous Reboot or System Freeze • Overclocking ........... BSOD or Spontaneous Reboot or System Freeze • Improper Permissions ... BSOD or System Generated Errors • Dirty upgrade .......... BSOD or System Errors or Slowness or Erratic Behavior • Virus Infection ........ Inexplicable slowness or Highly Erratic Behavior • Wrong Drive Settings ... Inexplicable slowness or Failed Install or Long Boot times • Bad SCSI Termination ... Inexplicable slowness or Failed Install or Long Boot times • Disabled Services ...... Poor System Performance or Installation Problems or Limited OS Functionality Troubleshooting system lock-up problems http://www.legge40.freeserve.co.uk/Tips2.htm#LOCKUP

I appreciate the cut and paste. But I was looking for a more seasoned response. I already know how to use Google. I was hoping for a response from someone who might have some RAID experience. Every component in this system is of the highest quality and brand spanking new. The system is not overclocked or infected unless the XP disk itself carries a virus. It is a clean install of XP SP2. "Remove all cards & replace 1 by 1." This one actually made me laugh, yeah . . . I always keep extra NX6800 video cards laying around. Anyone out there familiar with RAID technology? I set the block size to "optimal," if I lower it will that help? Also, if I change the block size will I have to reinstall the O/S? ~TR Alter Ipse Amicus