Computer restarts automatically

This is most likely the CPU being hot (60 degree or higher in Celcius). Check the temperatures of CPU and system in the BIOS if available.
1). May need a new CPU fan or add an addtional case fan.
2). If this does not resolve the problem, you may have to replace the CPU.

I had the same problem, I solved by removing everything from my pc, just cpu, 1 disk and memory... not the extra cards, extra memeory, than let this system run for a few hours, than I started adding cards, till I found a faulty Soundcard that randomrebooted my pc...

Be ware that this takes some time to find out, but it's better that a pc that reboots without warning...

well I've had the same problem when I've added memory [epecially two different brands and quality] but when I took it out the problem went away. Also, I got W2K to utilize the additional memory by wiping W2K off the machine and then reinstalling it.

If you want to see the error message you are getting, do this:

Right click on My Computer, go to the properties,
then the Advanced Tab.

On the Advanced tab, click the button "Startup and Recovery".

Uncheck the box marked "Automatically reboot"

Windows 2000 default is to force a reboot if a major error occurs, so the blue screen just flashs and disappears.

Uncheck the box will let W2K show the error on the screen so you can look it up in the Microsoft knowledgebase and see what the error messages means.

Have you taken any action with regard to the power supply? Test it and if the voltages are not to specs, then replace the power supply.

You don't say if you can use the system for any period of time (ie does it reboot when it gets hot after using for awhile?)? Make sure all the fans still function and that nothing has come unconnected when you added the RAM. Get a can of air and blow out the computer. see if any of this helps.

Many reboots without errors occur as a result of overheating or underpowering. Check your PSU and fans and go from there.

By Unchecking the box marked "Automatically reboot" the following errors were found.

[1]

*** STOP: 0x000000D1 (0X000000E8, 0X00000002, 0X00000000, 0XED4786CE)
DRIVER_IRQL_NOT_LESS_OR_EQUAL

*** Address ED4786CE base at ED478000, Datestamp 3a09eaa3 - FA31XND5.SYS

Begining dump of physical memory

[2]

STOP: 0x000000D1 (0X00000114, 0x00000002, 0x00000000, 0xBFECF648)
DRIVER_IRQL_NOT_LESS_OR_EQUAL

*** Address BFECF648 base at BFEC5000, Datestamp 3cdaee06 - NDIS.SYS

Beginingdump of physical memory

This means that there is a buggy device driver, or hardware conflict.
Check your drivers (video etc.)
See these articles:

Error Message: STOP 0x000000D1 DRIVER_IRQL_NOT_LESS_OR_EQUAL 293077

http://tinyurl.com/3vqi

and

Windows 2000 MayDisplay an Error Message on a Blue Screen with Adaptec CD-R or CD-RW Software 237468

http://tinyurl.com/3vqe

Check the power supply bundle to make sure that it is not touching or near cpu to cause a heating problem

Check the connections to power supply and mkae sure they are secure

Make sure that system is not over loaded,which would cause the power supply to not provide enough power to system,which would cause the cpu to work harder thus ceating more heat

Hi
you have a netgear network card and it is having a problem maybe a hardware or software.

go to netgear site and download the latest driver if you still have the same problem change the network card with reliable NIC such as 3com ones.

http://www.netgear.com
driver
http://www.expressresponse.com/cgi-bin/progsnp/netgear2/srchjnnp?search_type=vdocument&search_input=D100133.htm&session_id=1041163742.6163.7&search_erproduct=dwnld&template=viewmoredocs%2ehtml&level=main&prodfamily=&product=

Good luck

Mohamed

Note1:
***Very Important NOTE *********
After you copy the URL a space or a %20 maybe gets inserted in the URL when you paste it into your browser. Delete any spaces or such characters from the URL for the page tobe loaded.
***Very Important NOTE *********

From your additional comments, you may have a clue to the address of the offending device. If you look in the Hardware device manager (control panel-system-hardware tab- device manager button) and sort the devices by address (right click on device manager in left pane, select view- resources by connection, then select memory or irq or other heading to see where the conflict may be), you may discover what device is causing the problems. Also, is there any common thread to when the PC reboots? Any specific action being taken or program being ran when it reboots? A conflict with a video card can cause a sudden reboot without any bluescreen or warning. I had an issue with a third party card where as soon as I tried to configure it, the PC immediately rebooted with no blue screen. Solved by installing a different video card and disabling the onboard video in the bios.

Good Luck

Daniel Thune
MCSE

This is what MS has to say about this,

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ddtools/hh/ddtools/bccodes_2zdz.asp

Bug Check 0xD1: DRIVER_IRQL_NOT_LESS_OR_EQUAL
The DRIVER_IRQL_NOT_LESS_OR_EQUAL bug check has a value of 0x000000D1. This indicates that the system attempted to access pageable memory at a process IRQL that was too high.

Try removing your NIC card. Also, you may try to put the NIC card in a different slot.

You can also go to Windows 2000 resource kit and download a driver verifier.

http://support.microsoft.com/default.aspx?scid=KB;en-us;q244617

I think that answer number 4 is on the right track. I also think that answer number 3 was onto something as well. (Even though you didn’t like it.) When you install Windows 2000, it recognizes the amount of memory you have installed and it configures its settings accordingly. When you add additional memory, the settings also need to be adjusted to avoid problems and to maintain optimal performance. (Optimize your swap ‘paging’ file.)

http://www.computerjohn.info/windows2000/optimization.htm

Make sure your memory is the correct type, and don’t mix the types. For example, if your processor and motherboard operate at 133 bus speed, make sure you use PC133 memory. Some people have maintained that you can use faster memory on a slower system (PC133 RAM on a PC100 processor/motherboard), but I don’t buy it. Personally, I never mix it up.

And check your BIOS settings to make sure there are no conflicting settings. There are some overrides in the BIOS that could incorrectly set memory speed.

Here are some additional links that may be helpful:

Microsoft article Q254649, “Windows 2000 Memory Dump Options Overview”

http://support.microsoft.com/default.aspx?scid=KB;en-us;q254649

“Analyzing Windows 2000 Memory Dumps”
http://www.labmice.net/troubleshooting/memorydumps.htm
“Windows 2000 Memory Tweak guide”

http://www.3dspotlight.com/tweaks/memory-win2k/index.shtml

“Windows 2000 Memory Subsystem Tweaking”

http://www.arstechnica.com/tweak/win2k/others/memory-1.html

REMOVE SPACES from the pasted URLs.

I had the same problem on a similar machine. Do you have a way to monitor the voltage on your motherboard? The problem I ran into was that the southbridge was going bad slowly on my machine. It eventually started displaying different errors untilit died. You might want to replace the motherboard to save yourself the grief. With stuff I had laying around I changed the ram sticks, the powersupply, the videocard, the harddrive and I even ran the machine with nothing but one harddrive and onecd rom and the problem persisted (normally this machine is stuffed). It will progress to a point where it will take windows a very long time to boot up, hours to format a disk and then machine death.

Good luck,
Pat

This question was closed by the author

Thanks to all who responded to my question. Problem i had was due to netgear network card. I changed card with linksys network card. As of now problems seems to be solved.