Please Help, This is the second weekend I have been working on this issue, the server is down now until I get it fixed. Thx in advance for your time and input.
SBS2003 Server has a problem with high CPU usage. Process Explorer shows Interrupts" with CPU usage of 20% - 60%. It constantly bounces up and down. The server is very slow and sometimes unresponsive. Everything does work, that is exchange is up, emails go in and out, shared drive woks, but the server is so stinking slow that its all basically worthless.
Intel S3200SH Server, XEON 3065, 4GB MEM.
Currently 1x WD 500GB ABYS SATA drive. Was RAID1 using onboard Intel Matrix RAID.
Server is about 18 months old, 20 users. This problem first surfaced about a month ago, seemed to be of little or no concern, server was slower than normal but didnt pay attention as there were no apparent issue. However a few weeks ago the server started locking up at 10:00pm, when the backup would kick off. Then often the server would BSOD during the day and at night, server would last anywhere from 1 30 hours then BSOD at random. The error codes are 0x000000c2 and 0x000000c4. Nothing that really helps.
I have updated server drivers, chipset, SATA controller, video, BIOS to version 47, stopped everything from starting up, disabled backup exec services, removed the Sony tape drive, removed the tape drive controller card, tried different hard drives, SATA cables, MEM test.
I have done the SBS backup and restore as the directions say, (on a separate HDD) when the first SBS disk 1 loads the server works great. Install SP2, reboot, run ntbackup and restore, reboot and WHAMMY server is SLLLOWWWW, high interrupts again.
What can I do? How can I fix this thing?