XTIDE Universal BIOS rev588 + NIC + High end 486 + Win95osr2.5 = BIG FAIL \ VOGONS

XTIDE Universal BIOS rev588 + NIC + High end 486 + Win95osr2.5 = BIG FAIL

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First post, by manuelink64

Posted on 2016-09-11, 20:59

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Hi fellows!

I tried to use a 8.4GB HDD on my 486DX4-100, 64 MB RAM EDO with XTIDE Universal Bios (EPROM) on a NIC card (dlink DE220),
the XTIDE works wonderfully well, I could format to FAT32 and install Win95OSR2.5, but....

Windows refuse to boot, only on "safe boot mode" works. 😵
Probably the win 95 IDE driver controller don't recognize the XTIDE implementation.

What i can do?

thanks in advance!

Last edited by manuelink64 on 2016-09-11, 22:12. Edited 2 times in total.

[Unisys CWP] [CPU] AMD-X5-133ADZ [RAM] 64 MB (4x36) FPM [HDD] Seagate 8.4GB [Audio] SB16 SCSI 2 (CT1770) [Video] ATI Mach64VT2 [OS] Windows 95 OSR2.5

Reply 1 of 10, by luckybob

Posted on 2016-09-11, 21:23

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XTIDE was not designed for this. You should use a standard ISA/IDE card. the majority of 486 boards I've dealt with have no problems handling a 8gb hard drive on their own with a simple dumb isa/ide card.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 2 of 10, by manuelink64

Posted on 2016-09-11, 22:10

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maybe I am wrong, but i'm using The XTIDE Universal BIOS (XUB), not the XTIDE PCB...

XUB makes it possible to use modern large ATA hard disks or Compact Flash cards on old PC's...burning in a eprom an put in on a NIC/ISA/IDE card

[Unisys CWP] [CPU] AMD-X5-133ADZ [RAM] 64 MB (4x36) FPM [HDD] Seagate 8.4GB [Audio] SB16 SCSI 2 (CT1770) [Video] ATI Mach64VT2 [OS] Windows 95 OSR2.5

Reply 3 of 10, by Imperious

Posted on 2016-09-12, 00:10

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Luckybob said it right. It's not designed for that. As far as I know, XTIDE is designed for larger hdds in Dos only.

You can use a larger hdd, but will need to install a software overlay like Ontrack or similar.

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Reply 4 of 10, by keropi

Posted on 2016-09-12, 00:12

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yeah as luckybob states you don't need any extra IDE BIOS for a 8GB HDD... just use the mobo's bios with a controller and you'll be fine

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Reply 5 of 10, by manuelink64

Posted on 2016-09-12, 00:26

manuelink64 Offline

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it's a shame 😒 thanks guys!

well, maybe I will try to format the hdd in four (FAT16, 2GB) partitions and then install DOS6.22+win311 😊 .

regards!

[Unisys CWP] [CPU] AMD-X5-133ADZ [RAM] 64 MB (4x36) FPM [HDD] Seagate 8.4GB [Audio] SB16 SCSI 2 (CT1770) [Video] ATI Mach64VT2 [OS] Windows 95 OSR2.5

Reply 6 of 10, by Imperious

Posted on 2016-09-12, 01:15

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Why not just use an overlay as I mentioned? Then You can use a larger hdd with win95 and fat32.

Atari 2600, TI994a, Vic20, c64, ZX Spectrum 128, Amstrad CPC464, Atari 65XE, Commodore Plus/4, Amiga 500
PC's from XT 8088, 486, Pentium MMX, K6, Athlon, P3, P4, 775, to current Ryzen 5600x.

Reply 7 of 10, by luckybob

Posted on 2016-09-12, 01:32

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Ive never even remotely needed more than 2gb for dos.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 8 of 10, by Jo22

Posted on 2016-09-12, 04:37

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Out of curiosity, does this Universal BIOS thingy cooperate well with protected mode drivers ?
I'm thinking of FastDisk or OS/2's own disk driver.
Especially Windows 3.1 is what me worries a bit. It's WD1003 driver is quite stable, but also a bit paranoid.
In case of doubt it will instantly cease operation to avoid data loss.

Here's an article about this:

How to please WDCTRL
http://www.os2museum.com/wp/how-to-please-wdctrl/

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In what to one race is no time at all, another race can rise and fall..." - The Minstrel

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Reply 9 of 10, by BloodyCactus

Posted on 2016-09-12, 12:35

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XTIDE bios is a real mode INT13 replacement. it does not work with protected mode, windows + os2 bypass real mode int13.

on a 486, there is no point using xtide. just attach a CF card directly to the standard ide port.

the whole 'XT' in 'XTIDE' denotes that its designed to work with 8088/8086 8bit class machines.

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Reply 10 of 10, by NJRoadfan

Posted on 2016-09-12, 13:32

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The XTIDE BIOS has an AT version for use as a replacement Int 13h BIOS on newer machines. It does work with Windows 9x, but the esdi506.pdr driver requires that a drive type be set in the CMOS in order to work. This thread details the problem and has a patch/workaround: http://www.vcfed.org/forum/showthread.php?514 … ndows-95-issues

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