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Author Topic: Pure DOS boot disks can't see my old IDE DVD-ROM drive?  (Read 1791 times)
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antdude
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« on: 02 January 09, 22:41:56 »

Hi!

I don't know if it is my brand new MSI P43 NEO3-F (MSI-7514) motherboard or something else. Others and I are quite stomped. Maybe MSI did something different?

Since I still have an old IDE Toshiba DVD-ROM drive (from 2001 I think) and it works in Windows XP, I can't seem to use it when booting to pure DOS boot with its old oakcdrom.sys and mscdex.exe driver. I am trying to flash my old drive with a newer firmware and it also can't find the drive based on http://hijacker.rpc1.org/toshiba_nolimit/#Download instructions.

I wonder if my new MSI motherboard change the rules for using IDE CD/DVD-ROM drives. CMOS sees the drive just fine under primary master (the only IDE drive too) and and PC can boot bootable CDs just fine, but DOS boot doesn't see this drive. However, Norton Ghost 2003 DOS can see it. Am I missing something? It has been a while since I used DOS boot with its CD support.

You can see http://alpha.zimage.com/~ant/antfarm/about/computers.txt for the primary computer specifications. Thank you in advance. Smiley
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« Reply #1 on: 02 January 09, 22:49:27 »

Because the onboard controller is Jmicron and standard drivers will not works.
Try use this one instead: http://marktsai0316.googlepages.com/GCDROM23.ZIP
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antdude
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« Reply #2 on: 02 January 09, 22:58:57 »

Because the onboard controller is Jmicron and standard drivers will not works.
Try use this one instead: http://marktsai0316.googlepages.com/GCDROM23.ZIP

Oooooooooooooh! When did MSI (and others?) change this?!?! Ugh! I thought it was supposed to be backward compatible. Sad
« Last Edit: 02 January 09, 23:08:35 by antdude » Logged

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« Reply #3 on: 02 January 09, 23:19:09 »

DOS support has been vanished a long time ago.
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« Reply #4 on: 02 January 09, 23:20:54 »

DOS support has been vanished a long time ago.
Dang. How do people still do firmware upgrades then?

I just realized I can't have these drivers to upgrade my DVD-ROM drive firmware according to http://hijacker.rpc1.org/toshiba_nolimit/#Download ... Grr!
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« Reply #5 on: 02 January 09, 23:23:23 »

I already told you what drivers to use.
Else you can use floppy or USB key if you need pure DOS for something
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« Reply #6 on: 02 January 09, 23:51:10 »

When did MSI (and others?) change this?!?! Ugh! I thought it was supposed to be backward compatible. Sad

Nothing has changed.  Discrete host controllers have always required third-party drivers to function under DOS.  The only thing that has changed is Intel removed the native IDE controller from its chipsets about two years ago, requiring the use of third-party controller chips to provide IDE ports.
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« Reply #7 on: 02 January 09, 23:51:32 »

I already told you what drivers to use.
Else you can use floppy or USB key if you need pure DOS for something

That is what I am doing. Using the link you gave me, overwrite my Windows 98 boot DOS disk's config.sys and autoexec.bat and edited them (e.g., removed IDE\ directory). Finally, got the DOS boot disk to see my DVD-ROM drive. My next issue is to run this old firmware upgrade tool which still insists it can't find my IDE drive. BLAH!
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« Reply #8 on: 02 January 09, 23:53:27 »

Nothing has changed.  Discrete host controllers have always required third-party drivers to function under DOS.  The only thing that has changed is Intel removed the native IDE controller from its chipsets about two years ago, requiring the use of third-party controller chips to provide IDE ports.
Wait, does AMD do this too? This is my first time back on Intel side since Pentium 3 440BX. I never had this problem with AMD (last one was a 64 X2).
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« Reply #9 on: 02 January 09, 23:59:51 »

 As cheap as they are why not a new drive?
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« Reply #10 on: 03 January 09, 00:05:52 »

As cheap as they are why not a new drive?
I already have a new drive. I just wanted a secondary for reading and using as source when doing duplications. Smiley
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« Reply #11 on: 03 January 09, 09:49:35 »

IDE has been legacy for some time, get a SATA drive they are cheap enough.
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« Reply #12 on: 03 January 09, 11:53:21 »

That is what I am doing. Using the link you gave me, overwrite my Windows 98 boot DOS disk's config.sys and autoexec.bat and edited them (e.g., removed IDE\ directory). Finally, got the DOS boot disk to see my DVD-ROM drive. My next issue is to run this old firmware upgrade tool which still insists it can't find my IDE drive. BLAH!

For that you will need to attach this DVD-ROM to another board to flash his firmware there.
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« Reply #13 on: 03 January 09, 19:59:40 »

For that you will need to attach this DVD-ROM to another board to flash his firmware there.
Ah, thanks.
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« Reply #14 on: 04 January 09, 02:26:11 »

Wait, does AMD do this too?  This is my first time back on Intel side since Pentium 3 440BX.  I never had this problem with AMD (last one was a 64 X2).

I'm not 100% certain but I believe current AMD and NVIDIA chipsets still bring one IDE channel natively.  Intel removed the IDE channels starting with ICH8 Southbridge, IIRC, possibly even ICH7.  975X used ICH7, P965 used ICH8, P35 used ICH9.  So its been a couple years since Intel chipsets offered native IDE support.
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« Reply #15 on: 04 January 09, 02:49:16 »

I'm not 100% certain but I believe current AMD and NVIDIA chipsets still bring one IDE channel natively.  Intel removed the IDE channels starting with ICH8 Southbridge, IIRC, possibly even ICH7.  975X used ICH7, P965 used ICH8, P35 used ICH9.  So its been a couple years since Intel chipsets offered native IDE support.
Wait, I am confused. Are you saying my MSI P43 NEO3-F (MSI-7514) motherboard is not using a native IDE support and emulating IDE? I thought it was.
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« Reply #16 on: 11 January 09, 06:19:29 »

It looks like my computer hardware friend fixed it. He messed with the voltages in CMOS, and we tested it twice with a 3.5" DOS boot disk. Now, it works (I hope). Very weird for voltages to affect a PS/2 keyboard!
« Last Edit: 11 January 09, 06:24:19 by antdude » Logged

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« Reply #17 on: 11 January 09, 07:56:01 »

Wait, I am confused. Are you saying my MSI P43 NEO3-F (MSI-7514) motherboard is not using a native IDE support and emulating IDE?

No, its using a third-party ATA/IDE bridge chip from JMicron to provide the IDE channel.  Native here is used to mean chipset integrated.
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« Reply #18 on: 11 January 09, 07:59:35 »

No, its using a third-party ATA/IDE bridge chip from JMicron to provide the IDE channel.  Native here is used to mean chipset integrated.
Ah thanks! Smiley
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