Bug Check reboots repeatedly. 0x1000008e

The computer will reboot when put under a heavy load.

Passes MemCheck 86 left running overnight.

Just installed new ram.

430 W power supply, wondering if it's possible that it's underpowered since it only fails when under load?



Event Type: Information
Event Source: Save Dump
Event Category: None
Event ID: 1001
Date: 26/09/2007
Time: 7:20:22 AM
User: N/A
Computer: MESSIAH
Description:
The computer has rebooted from a bugcheck. The bugcheck was: 0x1000008e (0xc0000005, 0xbf813c29, 0xb6239c70, 0x00000000). A dump was saved in: C:\WINDOWS\Minidump\Mini092607-01.dmp.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.


Event Type: Information
Event Source: Save Dump
Event Category: None
Event ID: 1001
Date: 23/09/2007
Time: 9:51:40 PM
User: N/A
Computer: MESSIAH
Description:
The computer has rebooted from a bugcheck. The bugcheck was: 0x1000008e (0xc0000005, 0xbf801f79, 0xb5f5ac48, 0x00000000). A dump was saved in: C:\WINDOWS\Minidump\Mini092307-01.dmp.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.