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Kindly help.
Install win 2000 with no problems on a GA-5AX rev. 5.x mobo. After rebooting, it reaches the win2000 screen, stays there for a few seconds, that screen disappears, then nothing appears after that.

I did boot to safe mode with no problem.
Its when I try to boot-up normally, that is where I have the problem. (It stops at: windows 2000 professional logo
Starting up..................) after that, black screen.
thanks for responding

I will try another graphics card and see what happens. However, I did a check of Device Manager in safe mode and none of the devices had a "yellow question mark". I am puzzled.

What kind of card is in there? PCI? Onboard? You may need to make some setting adjustments in the BIOS.

Graphics card is AGP Riva TNT2M64 32mb. I changed it to another AGP card, Diamond Stealth s340 32mb and win 2000 sp4 booted all the way. It install the drivers for it as s3 savage. PC works excellent. Faster than win xp I had installed earlier. I did a clean install, press F5, select standard pc, thats it.
Thanks very much for all the help.

Oh, one more thing: when I shut down, a small win 2000 professional screen pops up and below that, it says; "its now safe to turn off your computer." I turn off the switch on the PSU.
Is there anyway for that to go away?

"Was that an option when the MBoard was made? That is a K6 CPU."
Yes. It ain't that old that it wouldn't have ACPI.
K6-2, K6-III cpus are what it works best with, up to 600mhz, or more if you want to overclock. K6 is a different, older animal. I've got a computer that has the same mboard, maybe a different revision."After rebooting, it reaches the win2000 screen, stays there for a few seconds, that screen disappears, then nothing appears after that."
If the hard drive seemed to be loading Windows normally after the blackness, your problem probably was the video wasn't recognizing the monitor properly - ATI chipsets and cards do that sometimes as well. Usually you can fix the problem by starting up in Safe Mode - choose Enable VGA mode, then going to Display - Settings - Advanced - Monitor and either load the Plug and Play monitor drivers, or if you have them, use Have Disk to load the proper drivers for your monitor. Reboot, start up normally, all should be well.
S3 video chipsets don't seem to have that monitor recognition probem.

By the way, if you haven't already done so, install the main chipset drivers for the mboard - the ACPI may not work until you do.
www.viaarena.com

OnTheHill
Majority of PII/AMD K6 are, I have had several which will list in W2K Device Manager that it is an ACPI PC as opposed to Standard PC.

Orbital
Then as tubes mentioned, maybe the MBoard chipset drivers aren't installed, or BIOS setting need to be adjusted.

Yes, its an old mobo. It does not have ACPI option in BIOS. In control panel, under power options, it has APM. I enabled that, did shutdown the computer to see what will happen. It displayed a blue screen with a message but it disappeared too fast to read, and it restarted by itself. After that I overclock it to 550mhz (from 500 to 550) After a few attempts it finally booted all the way but without displaying the cdrom drive letter. Only A drive, C drive and control panel being displayed. Restarted, brought up a message "ntfs.... is corrupted. insert win2000 cd and select r". Did a clean install again, this time with no problems and NO "win2000 pro logo....its now safe to shutdown your computer". None of that.

The mboard DOES have ACPI support, but it does not specifically mention it in your bios Setup pages - in the Power Management section, you can enable or disable APM - if you enable APM, ACPI is probably enabled as well. If APM is on there and the ACPI isn't working, that's because you didn't load the main chipset drivers!
The manual mentions ACPI over and over again - do you have the manual? - it's probably on the CD that came with the mboard (a pdf file) or you can get it on the Gigabyte web site or elsewhere on the web."After that I overclock it to 550mhz (from 500 to 550) After a few attempts it finally booted all the way"
I recently tried overclocking two different K6-2's (K6-2 550, K6-2+ 550) and a K6-III 450 on my mboard which has exactly the same Via MVP3 chipset.
(Update/correction - your mboard uses the same cpus, and my mboard has the Via MVP3 chipset, but yours uses the ALi Aladdin V chipset, 1541/1543C, not the MVP3, so you may be able to overclock differently than I can, but in general everything else I say here about overclocking applies - in particular, the mboard may boot into Windows all the way, but produce software errors it doesn't produce when the overclocked settings are less or it isn't overclocked.)
I found how much you can overclock a K6-2 or K6-III cpu varies quite a bit depending on which exact model it is, and sometimes you can boot all the way into Windows but something's still not quite right and you will get error messages about software errors, but they are not there if you overclock less or don't overclock at all. You get the best results keeping the fsb at 100mhz, or maybe only one step above that on the 5AX, and using an increase in the multiplier, and/or by using 95 mhz and an increase in the multplier. Some of them won't overclock much, or at all without producing software error messages, some such as K6-2+ or K6-III+ (originally made for laptops - core voltage is 2.0, 2.1 max vs. 2.2 to 2.4 for the others) will overclock more. In my case, at standard core voltages for all three, the K6-2 550 and K6-III 450 cannot be overclocked with out causing software errors (the first FSB step after 100mhz on my mboard is 112mhz - too high for all three cpus - none boot at 112mz), but the K6-2+ 550 works fine at 100mhz X6, and Sisoft Sandra gives it a PR72x at that setting (~= to a PII at 72x mhz).
If in doubt, for the time being DO NOT overclock the cpu until everything is working as it should, and fiddle with that later.
"....it finally booted all the way but without displaying the cdrom drive letter. Only A drive, C drive and control panel being displayed.
That probably indicates Windows does not have the proper info about your mboard because you have not installed the main chipset drivers. For the same reason, the ACPI of the mboard may not be recognized.
Go to wwww.viaarena.com - Drivers - Chipset and Platform drivers."Restarted, brought up a message "ntfs.... is corrupted."
That is probably an error caused by your overclocking the cpu a bit too much. Reduce your overclocking, or don't overclock it at all for the time being.

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