Win 2000 Restarts Unexpectedly and Repeatedly

I'm using Win 2000 Professional with downloaded SP3, and I'm stumped on a problem that's been occuring.

For no apparent reason, the system will suddenly restart, without going to a blue screen, and will do so repeatedly. Sometimes you're able to use the computer for hours before it starts rebooting, and sometimes you've barely been logged on for a second.

The restart does not seem to be associated with any actions, but I have noticed a few times that it restarted right as I clicked on a button or tried to start an application (usually IE 6).

One thing that's weird is the fact that when I go to the Event Log, there aren't any errors. I've also gone to System Properties>Advanced>Startup/Recovery and disabled the Automatic Reboot upon System Failure. But this hasn't worked. I have never seen a blue screen or any other error. The computer just keeps restarting unexpectedly.

Any help at all would be greatly appreciated! Please!

 

The computer is hooked up to a Belkin Back-up Plus Battery and Surge Protector. It shouldn't be having any problems, though.

Just ran some tests on the battery, and it's completely okay.

 

Boot Log

I enabled boot logging, and I was wondering if any of these looked strange or telling of the problem to you:

Service Pack 3 6 2 2003 13:01:19.500
Loaded driver \WINNT\System32\ntoskrnl.exe
Loaded driver \WINNT\System32\hal.dll
Loaded driver \WINNT\System32\BOOTVID.dll
Loaded driver ACPI.sys
Loaded driver \WINNT\System32\DRIVERS\WMILIB.SYS
Loaded driver pci.sys
Loaded driver isapnp.sys
Loaded driver compbatt.sys
Loaded driver \WINNT\System32\DRIVERS\BATTC.SYS
Loaded driver PCIIde.sys
Loaded driver \WINNT\System32\Drivers\PCIIDEX.SYS
Loaded driver intelide.sys
Loaded driver ftdisk.sys
Loaded driver Diskperf.sys
Loaded driver dmload.sys
Loaded driver dmio.sys
Loaded driver PartMgr.sys
Loaded driver MountMgr.sys
Loaded driver atapi.sys
Loaded driver aic78xx.sys
Loaded driver \WINNT\System32\DRIVERS\SCSIPORT.SYS
Loaded driver disk.sys
Loaded driver \WINNT\System32\DRIVERS\CLASSPNP.SYS
Loaded driver KSecDD.sys
Loaded driver Ntfs.sys
Loaded driver NDIS.sys
Loaded driver Mup.sys
Loaded driver \SystemRoot\System32\DRIVERS\i81xnt5.sys
Loaded driver \SystemRoot\System32\DRIVERS\e100bnt5.sys
Loaded driver \SystemRoot\System32\Drivers\Cdr4_2K.SYS
Loaded driver \SystemRoot\System32\DRIVERS\cdrom.sys
Loaded driver \SystemRoot\System32\Drivers\Cdralw2k.SYS
Loaded driver \SystemRoot\System32\DRIVERS\uhcd.sys
Loaded driver \SystemRoot\system32\drivers\smwdm.sys
Loaded driver \SystemRoot\System32\DRIVERS\fdc.sys
Loaded driver \SystemRoot\System32\DRIVERS\serial.sys
Loaded driver \SystemRoot\System32\DRIVERS\serenum.sys
Loaded driver \SystemRoot\System32\DRIVERS\parport.sys
Loaded driver \SystemRoot\System32\DRIVERS\i8042prt.sys
Loaded driver \SystemRoot\System32\DRIVERS\mouclass.sys
Loaded driver \SystemRoot\System32\DRIVERS\kbdclass.sys
Loaded driver \SystemRoot\System32\DRIVERS\gameenum.sys
Loaded driver \SystemRoot\system32\drivers\msmpu401.sys
Loaded driver \SystemRoot\System32\DRIVERS\serscan.sys
Loaded driver \SystemRoot\System32\DRIVERS\audstub.sys
Loaded driver \SystemRoot\System32\DRIVERS\rasl2tp.sys
Loaded driver \SystemRoot\System32\DRIVERS\ndistapi.sys
Loaded driver \SystemRoot\System32\DRIVERS\ndiswan.sys
Loaded driver \SystemRoot\System32\DRIVERS\raspptp.sys
Loaded driver \SystemRoot\System32\DRIVERS\ptilink.sys
Loaded driver \SystemRoot\System32\DRIVERS\raspti.sys
Loaded driver \SystemRoot\System32\DRIVERS\parallel.sys
Loaded driver \SystemRoot\System32\DRIVERS\swenum.sys
Loaded driver \SystemRoot\System32\DRIVERS\update.sys
Loaded driver \SystemRoot\System32\DRIVERS\usbhub.sys
Loaded driver \SystemRoot\System32\DRIVERS\flpydisk.sys
Loaded driver \SystemRoot\System32\Drivers\NDProxy.SYS
Loaded driver \SystemRoot\System32\Drivers\EFS.SYS
Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS
Loaded driver \SystemRoot\System32\DRIVERS\hidusb.sys
Loaded driver \SystemRoot\System32\DRIVERS\HidBatt.sys
Did not load driver \SystemRoot\System32\Drivers\lbrtfdc.SYS
Did not load driver \SystemRoot\System32\Drivers\Sfloppy.SYS
Did not load driver \SystemRoot\System32\Drivers\Changer.SYS
Did not load driver \SystemRoot\System32\Drivers\Cdaudio.SYS
Loaded driver \SystemRoot\System32\Drivers\Fs_Rec.SYS
Loaded driver \SystemRoot\System32\Drivers\Null.SYS
Loaded driver \SystemRoot\System32\Drivers\Beep.SYS
Did not load driver \SystemRoot\System32\Drivers\sglfb.SYS
Did not load driver \SystemRoot\System32\Drivers\tga.SYS
Loaded driver \SystemRoot\System32\drivers\vga.sys
Loaded driver \SystemRoot\System32\Drivers\mnmdd.SYS
Loaded driver \SystemRoot\System32\Drivers\Msfs.SYS
Loaded driver \SystemRoot\System32\Drivers\Npfs.SYS
Loaded driver \SystemRoot\System32\DRIVERS\rasacd.sys
Loaded driver \SystemRoot\System32\DRIVERS\msgpc.sys
Loaded driver \SystemRoot\System32\DRIVERS\tcpip.sys
Loaded driver \SystemRoot\System32\DRIVERS\wanarp.sys
Loaded driver \SystemRoot\System32\DRIVERS\netbt.sys
Loaded driver \SystemRoot\System32\DRIVERS\netbios.sys
Did not load driver \SystemRoot\System32\Drivers\PCIDump.SYS
Did not load driver \SystemRoot\System32\DRIVERS\redbook.sys
Loaded driver \SystemRoot\System32\DRIVERS\rdbss.sys
Loaded driver \SystemRoot\System32\DRIVERS\mrxsmb.sys
Loaded driver \??\C:\WINNT\System32\Drivers\SYMREDRV.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMDNS.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMFW.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMIDS.SYS
Did not load driver \??\C:\WINNT\System32\Drivers\SYMIDSCO.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMNDIS.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMTDI.SYS
Loaded driver \SystemRoot\System32\drivers\afd.sys
Loaded driver \SystemRoot\System32\Drivers\ParVdm.SYS
Loaded driver \SystemRoot\System32\Drivers\ASCTRM.SYS
Loaded driver \SystemRoot\System32\Drivers\Fips.SYS
Did not load driver \SystemRoot\System32\DRIVERS\rdbss.sys
Did not load driver \SystemRoot\System32\DRIVERS\mrxsmb.sys
Loaded driver \SystemRoot\System32\DRIVERS\srv.sys
Loaded driver \SystemRoot\system32\drivers\wdmaud.sys
Loaded driver \SystemRoot\system32\drivers\sysaudio.sys
Loaded driver \SystemRoot\system32\drivers\swmidi.sys
Loaded driver \SystemRoot\system32\drivers\DMusic.sys
Loaded driver \SystemRoot\system32\drivers\kmixer.sys
Loaded driver \SystemRoot\System32\Drivers\Cdfs.SYS
Loaded driver \SystemRoot\System32\Drivers\Fastfat.SYS
Loaded driver \SystemRoot\System32\DRIVERS\ipsec.sys
Loaded driver \??\C:\Program Files\Symantec\SYMEVENT.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\NPDRIVER.SYS
Loaded driver \??\C:\PROGRA~1\COMMON~1\SYMANT~1\VIRUSD~1\20030528.001\NAVENG.Sys
Loaded driver \??\C:\PROGRA~1\COMMON~1\SYMANT~1\VIRUSD~1\20030528.001\NavEx15.Sys
Loaded driver \??\C:\WINNT\System32\Drivers\NAVAP.SYS
Loaded driver \SystemRoot\system32\drivers\kmixer.sys
Loaded driver \SystemRoot\system32\drivers\kmixer.sys
Loaded driver \SystemRoot\system32\drivers\kmixer.sys
Service Pack 3 6 2 2003 19:14:07.500

 

Continued...

Loaded driver \WINNT\System32\ntoskrnl.exe
Loaded driver \WINNT\System32\hal.dll
Loaded driver \WINNT\System32\BOOTVID.dll
Loaded driver ACPI.sys
Loaded driver \WINNT\System32\DRIVERS\WMILIB.SYS
Loaded driver pci.sys
Loaded driver isapnp.sys
Loaded driver compbatt.sys
Loaded driver \WINNT\System32\DRIVERS\BATTC.SYS
Loaded driver PCIIde.sys
Loaded driver \WINNT\System32\Drivers\PCIIDEX.SYS
Loaded driver intelide.sys
Loaded driver ftdisk.sys
Loaded driver Diskperf.sys
Loaded driver dmload.sys
Loaded driver dmio.sys
Loaded driver PartMgr.sys
Loaded driver MountMgr.sys
Loaded driver atapi.sys
Loaded driver aic78xx.sys
Loaded driver \WINNT\System32\DRIVERS\SCSIPORT.SYS
Loaded driver disk.sys
Loaded driver \WINNT\System32\DRIVERS\CLASSPNP.SYS
Loaded driver KSecDD.sys
Loaded driver Ntfs.sys
Loaded driver NDIS.sys
Loaded driver Mup.sys
Loaded driver \SystemRoot\System32\DRIVERS\i81xnt5.sys
Loaded driver \SystemRoot\System32\DRIVERS\e100bnt5.sys
Loaded driver \SystemRoot\System32\Drivers\Cdr4_2K.SYS
Loaded driver \SystemRoot\System32\DRIVERS\cdrom.sys
Loaded driver \SystemRoot\System32\Drivers\Cdralw2k.SYS
Loaded driver \SystemRoot\System32\DRIVERS\uhcd.sys
Loaded driver \SystemRoot\system32\drivers\smwdm.sys
Loaded driver \SystemRoot\System32\DRIVERS\fdc.sys
Loaded driver \SystemRoot\System32\DRIVERS\serial.sys
Loaded driver \SystemRoot\System32\DRIVERS\serenum.sys
Loaded driver \SystemRoot\System32\DRIVERS\parport.sys
Loaded driver \SystemRoot\System32\DRIVERS\i8042prt.sys
Loaded driver \SystemRoot\System32\DRIVERS\mouclass.sys
Loaded driver \SystemRoot\System32\DRIVERS\kbdclass.sys
Loaded driver \SystemRoot\System32\DRIVERS\gameenum.sys
Loaded driver \SystemRoot\system32\drivers\msmpu401.sys
Loaded driver \SystemRoot\System32\DRIVERS\serscan.sys
Loaded driver \SystemRoot\System32\DRIVERS\audstub.sys
Loaded driver \SystemRoot\System32\DRIVERS\rasl2tp.sys
Loaded driver \SystemRoot\System32\DRIVERS\ndistapi.sys
Loaded driver \SystemRoot\System32\DRIVERS\ndiswan.sys
Loaded driver \SystemRoot\System32\DRIVERS\raspptp.sys
Loaded driver \SystemRoot\System32\DRIVERS\ptilink.sys
Loaded driver \SystemRoot\System32\DRIVERS\raspti.sys
Loaded driver \SystemRoot\System32\DRIVERS\parallel.sys
Loaded driver \SystemRoot\System32\DRIVERS\swenum.sys
Loaded driver \SystemRoot\System32\DRIVERS\update.sys
Loaded driver \SystemRoot\System32\DRIVERS\usbhub.sys
Loaded driver \SystemRoot\System32\DRIVERS\flpydisk.sys
Loaded driver \SystemRoot\System32\Drivers\NDProxy.SYS
Loaded driver \SystemRoot\System32\Drivers\EFS.SYS
Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS
Loaded driver \SystemRoot\System32\DRIVERS\hidusb.sys
Loaded driver \SystemRoot\System32\DRIVERS\HidBatt.sys
Did not load driver \SystemRoot\System32\Drivers\lbrtfdc.SYS
Did not load driver \SystemRoot\System32\Drivers\Sfloppy.SYS
Did not load driver \SystemRoot\System32\Drivers\Changer.SYS
Did not load driver \SystemRoot\System32\Drivers\Cdaudio.SYS
Loaded driver \SystemRoot\System32\Drivers\Fs_Rec.SYS
Loaded driver \SystemRoot\System32\Drivers\Null.SYS
Loaded driver \SystemRoot\System32\Drivers\Beep.SYS
Did not load driver \SystemRoot\System32\Drivers\sglfb.SYS
Did not load driver \SystemRoot\System32\Drivers\tga.SYS
Loaded driver \SystemRoot\System32\drivers\vga.sys
Loaded driver \SystemRoot\System32\Drivers\mnmdd.SYS
Loaded driver \SystemRoot\System32\Drivers\Msfs.SYS
Loaded driver \SystemRoot\System32\Drivers\Npfs.SYS
Loaded driver \SystemRoot\System32\DRIVERS\rasacd.sys
Loaded driver \SystemRoot\System32\DRIVERS\msgpc.sys
Loaded driver \SystemRoot\System32\DRIVERS\tcpip.sys
Loaded driver \SystemRoot\System32\DRIVERS\wanarp.sys
Loaded driver \SystemRoot\System32\DRIVERS\netbt.sys
Loaded driver \SystemRoot\System32\DRIVERS\netbios.sys
Did not load driver \SystemRoot\System32\Drivers\PCIDump.SYS
Did not load driver \SystemRoot\System32\DRIVERS\redbook.sys
Loaded driver \SystemRoot\System32\DRIVERS\rdbss.sys
Loaded driver \SystemRoot\System32\DRIVERS\mrxsmb.sys
Loaded driver \??\C:\WINNT\System32\Drivers\SYMREDRV.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMDNS.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMFW.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMIDS.SYS
Did not load driver \??\C:\WINNT\System32\Drivers\SYMIDSCO.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMNDIS.SYS
Loaded driver \??\C:\WINNT\System32\Drivers\SYMTDI.SYS
Loaded driver \SystemRoot\System32\drivers\afd.sys
Loaded driver \SystemRoot\System32\Drivers\ParVdm.SYS
Loaded driver \SystemRoot\System32\Drivers\ASCTRM.SYS
Loaded driver \SystemRoot\System32\Drivers\Fips.SYS
Did not load driver \SystemRoot\System32\DRIVERS\rdbss.sys
Did not load driver \SystemRoot\System32\DRIVERS\mrxsmb.sys
Loaded driver \SystemRoot\System32\DRIVERS\srv.sys
Loaded driver \SystemRoot\system32\drivers\wdmaud.sys
Loaded driver \SystemRoot\system32\drivers\sysaudio.sys
Loaded driver \SystemRoot\system32\drivers\swmidi.sys
Loaded driver \SystemRoot\system32\drivers\DMusic.sys
Loaded driver \SystemRoot\system32\drivers\kmixer.sys
Loaded driver \SystemRoot\System32\Drivers\Cdfs.SYS
Loaded driver \SystemRoot\System32\Drivers\Fastfat.SYS
Loaded driver \SystemRoot\System32\DRIVERS\ipsec.sys
Loaded driver \??\C:\Program Files\Symantec\SYMEVENT.SYS
Loaded driver \??\C:\PROGRA~1\COMMON~1\SYMANT~1\VIRUSD~1\20030528.001\NAVENG.Sys
Loaded driver \??\C:\WINNT\System32\Drivers\NPDRIVER.SYS
Loaded driver \??\C:\PROGRA~1\COMMON~1\SYMANT~1\VIRUSD~1\20030528.001\NavEx15.Sys
Loaded driver \??\C:\WINNT\System32\Drivers\NAVAP.SYS

 

Nothing from the boot log jumps out at me but with a list that long, certainly possible to have missed something.

But power supply <> battery so possible to have a good battery and still have the problem.

#2 probability would be a heat issue of some sort.

Specifics on what hardware you are running?

 

sudden restart win2000pro

If you go to windows update there is a fix for IE6 shutting down win2000pro.

 

If I read this correctly, you secured the questionable power supply by using a UPS. WHOA, WAIT A MINUTE? The power supply in a desktop PC is AFTER any UPS you might plug in. So an intermittent/ faulty power supply could still affect the PC; the UPS would NOT prevent that. Just had to stick in my hardware troubleshooting advice.

 

As your PC is restarting, I guess you have not disabled Automatically restart in System Properties/Advanced/Startup and Recovery? If this is the case I would disable this feature so you may possibly get a Blue screen (BSOD). From there you can post the error string for us to look at, or you can paste it into a search engine like google and possibly determine if it is a hardware, RAM or software error causing the reboots.

Have a look in your Event viewer logs from Administrative Tools. You may have some error and/or warning logs. Not all errors are fatal though. But one of them may give a clue?