VOGONS


First post, by omarsis

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Hi all!
Do IDE hard disks or IDE optical drives (CD or DVD) have BIOSes or firmwares? If so, how could I dump it? Can I use MS-DOS’ debug.com?

For instance in POST screen where the drive’s model come from? (eg. CD-W524E 1.0E) is because is stored in an internal BIOS or firmware?

bios-which-key.jpg

Reply 1 of 6, by Zup

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They have firmware, and it can be updated via special programs. That firmware is not run by the CPU and it's not present in CPU addressable space (so you won't be able to dump it using debug).

In most cases, the firmware can't be dumped with the computer... it can be only read with flash or eprom programmers.

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Reply 2 of 6, by elod

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Disk firmware releases are pretty rare in the consumer space.
Optical drives did get firmware updates, some of them quite some. Usually burners, to support new discs.

Reply 3 of 6, by zyga64

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In the past there were many sites with firmware for CD-burners (sometimes modded). One of those that remained is www.cdrinfo.pl - polish site with 2813 firmwares. Here is search engine: https://www.cdrinfo.pl/biosy

1) VLSI SCAMP /286@20 /4MB /CL-GD5422 /CMI8330
2) i420EX /486DX33 /16MB /TGUI9440 /YMF718+GUS
3) i440BX /P!!!750 /256MB /MX440 /SBLive!+Vibra16s

Reply 4 of 6, by Matth79

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Hard disk firmware is generally only released when a specific bugfix is needed - Seagate have a pretty good serial number check, and some Seagate drives (Barracuda 7200.11) have a particularly serious bug.

Firnmware for that slot loading Plextor is also very thin on the ground, and Plextor only seem to mention SSD these days

Reply 5 of 6, by eisapc

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As mentioned before, both have firmware but use special software to access these. While hard drive firmware usually is only distributed by big OEMs like IBM, HP or Dell, optical drive firmwares are often availiable at the manufacturers site. I had same nice experience with Plextor: They sent me an updated BIOS chip for my drive, but I had to remove the PCB and desolder some drive power lines to reach the socket to install it.
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