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I switched SATA disks to IDE emulation mode in the BIOS (instead of AHCI). Then I ran Windows ME setup from a SATA CD drive. But I get this error:

Device driver not found: OEMCD001
No valid CDROM device drivers selected

This error message is common if you try to run the setup from an AHCI SATA CD drive. Because Windows ME does not support AHCI.

My question is: Why am I still getting this message even though I switched from AHCI to IDE mode?

I tried two different CD drives. Maybe they don't support IDE mode. But I do not know how to check it.

I know there is an AHCI driver around. But I want to know why it doesn't work even though I switched to IDE mode.

I found this post but it is about a different error.

Edit: I found out when I run the setup on an old PC (on which it is working) I get this line (under the CD drive info of the Windows setup):

Transfer Mode: Programmed I/O

I know this mode is also simply called PIO mode. On a modern PC with a SATA CD drive in IDE mode this line is missing.

Edit: Here is the screenshot. I get this error even if SATA mode is set to IDE. screenshot

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  • 1
    Is your SATA drive plugged to one of the SATA ports that can be set to IDE mode? Because not all SATA ports can be set to IDE mode.
    – Justme
    Commented Nov 19, 2022 at 11:10
  • @Justme Good idea but did not work. I have 4 SATA ports. Port 1 is white and the others are yellow. I tried all yellow ports and got the same error. On port 1 it does not boot at all. Not in AHCI mode and not in IDE mode. Seems port 1 only accepts HDDs.
    – zomega
    Commented Nov 19, 2022 at 12:23
  • Does ME require the CD operate in floppy emulation mode?
    – dave
    Commented Nov 19, 2022 at 12:46
  • @another-dave Possibly. Do modern mainboards (2010+) support floppy emulation CDROMs?
    – zomega
    Commented Nov 19, 2022 at 13:22
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    As expected, the drive is not detected by the driver at all, leading to MSCDEX failing further along the line. Diagnosing this without physical access (and e.g. running arbitrary diagnostic software) looks rather dire, though it might still help to know if an alternative CD driver would work… Commented Nov 21, 2022 at 10:05

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