Not able to boot 2k on 486

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nerd73
Posts: 116
Joined: Wed 24 Sep, 2014 11:16 pm

Not able to boot 2k on 486

Post by nerd73 »

I know booting 2k on a 486 is possible, I've seen it before.
But I've not been able to boot 2k in PCem v9 with any 486 BIOS.

On AMI486/Win486, it doesn't even get to 2k text-portion of boot, with the BIOS crapping out with an IDE error.
On the award SIS 496/497, it gets to the splash screen, but quickly crashes with "INACCESSABLE_BOOT_DEVICE 0x000007b"
On the 430VX (WinChip), it boots just fine however.
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ender
Posts: 51
Joined: Tue 14 Oct, 2014 12:51 pm

Re: Not able to boot 2k on 486

Post by ender »

Works fine for me with Win486. Had to boot off floppy images, but it installed without problems (doesn't see more than 64MB RAM though).
nerd73
Posts: 116
Joined: Wed 24 Sep, 2014 11:16 pm

Re: Not able to boot 2k on 486

Post by nerd73 »

ender wrote:Works fine for me with Win486. Had to boot off floppy images, but it installed without problems (doesn't see more than 64MB RAM though).
I've never had particularly good luck with 2K boot floppy images, but I'll give it a shot.

3rd try: "A disk read error occurred. Press Ctrl+Alt+Del to restart."
That is what happened after text setup on 486 bios for me.
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ender
Posts: 51
Joined: Tue 14 Oct, 2014 12:51 pm

Re: Not able to boot 2k on 486

Post by ender »

I had to use an original Windows 2000 ISO (without integrated SP4), and the floppy images worked fine for me (I just copied them from the bootdisk directory on the ISO, and used them in PCem directly).
nerd73
Posts: 116
Joined: Wed 24 Sep, 2014 11:16 pm

Re: Not able to boot 2k on 486

Post by nerd73 »

ender wrote:I had to use an original Windows 2000 ISO (without integrated SP4), and the floppy images worked fine for me (I just copied them from the bootdisk directory on the ISO, and used them in PCem directly).
I think I found out what was wrong.
It was the BIOS'es HDD size limitation of 504 MB.
FDISK saw the roughly 2 GB partition but said the disk was only 504 MB.
Everything is fine in the Award 430VX.

Also the 64 MB RAM limit was a limitation of the chipset.
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