BIOS wont detect CDROMs / DVDs \ VOGONS

BIOS wont detect CDROMs / DVDs

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First post, by Scott8bit

Posted on 2021-03-18, 20:40

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Scratching my head with this one, My BIOS wont detect CDROMS (socket7)
it detects Hard Drive and CF no problem on either channel but CDROMS wont work?
these said cdroms work fine on another computer, any ideas what could be causing it?

BIOS is set to AUTO on all four options.

its been so long since i've used old hardware but im pretty sure it should say CDROM detected.
i've let windows load in and i've scanned and even that hasnt found it. what am i missing?

Reply 1 of 6, by Horun

Posted on 2021-03-19, 00:14

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What motherboard model, what CDROM model. Need more info !

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 2 of 6, by Jorpho

Posted on 2021-03-19, 02:22

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Are the jumpers on the drives set correctly?

Reply 3 of 6, by maxtherabbit

Posted on 2021-03-19, 03:20

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It doesnt matter. Just forget the bios and load VIDE-CDD.SYS in DOS. It will work

Reply 4 of 6, by Scott8bit

Posted on 2021-03-19, 12:22

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Horun wrote on 2021-03-19, 00:14:

What motherboard model, what CDROM model. Need more info !

im usng an OPTI Viper, I believe its the M519...

CDROM not exactly sure of brand but its fastest speed is 4x and worked on a socket5 no problem,
and DVD is a SONY.. unable to get model numbers yet, im having trouble gettng them out the case
as the screw access is blocked by the power switch (desktop PC)

also tried another IDE cable, also tried using them individually set as master

even when i unplug the harddive channel 1) and plug IDE cable into them theyre still not detecting.

Reply 5 of 6, by weedeewee

Posted on 2021-03-19, 12:27

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Scott8bit wrote on 2021-03-19, 12:22:
im usng an OPTI Viper, I believe its the M519... […]
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Horun wrote on 2021-03-19, 00:14:

What motherboard model, what CDROM model. Need more info !

im usng an OPTI Viper, I believe its the M519...

CDROM not exactly sure of brand but its fastest speed is 4x and worked on a socket5 no problem,
and DVD is a SONY.. unable to get model numbers yet, im having trouble gettng them out the case
as the screw access is blocked by the power switch (desktop PC)

also tried another IDE cable, also tried using them individually set as master

even when i unplug the harddive channel 1) and plug IDE cable into them theyre still not detecting.

Could be the bios is just crap and doesn't detect cdroms. In such case, just load the dos driver .sys and mscdex (orwhatever correctly) and it should work in dos.

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Reply 6 of 6, by Schule04

Posted on 2021-03-19, 23:39

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Booting from CD only became common in the Pentium 2 days. If you want to boot from CD and your BIOS does not support that, you can try a boot floppy like this one: http://schierlm.users.sourceforge.net/bootdisk/

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