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I have a PC with two disks. The 1st disk is SATA (160 GB) with Windows XP on it. The 2nd disk is IDE (80 GB) with data on it.

When I turn on the PC, Windows XP starts but I can only see the 1st disk in Windows, not the 2nd one.

When I get into BIOS I can see that the 2nd disk is actually connected and recognized.

BIOS-IDE detected

What should I do, so that I can use both disks in Windows?

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  • Are all drivers installed? Anything suspicious in the Device Manager?
    – gronostaj
    Commented Jun 4, 2021 at 10:38
  • Is the IDE controller visible in Device Manager ? Do you have "unknown devices" in Device Manager ? Are you sure Master/Slave setting is correct on the IDE drive? I've seen numerous cases where a system would initially work for a few years with bad master/slave setings and stopped working at some point when the electronics componets got older.
    – Tonny
    Commented Jun 4, 2021 at 10:50
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    I can only see one disk in your BIOS image.
    – harrymc
    Commented Jun 4, 2021 at 10:58
  • 1
    Make and model of PC?
    – Moab
    Commented Jun 4, 2021 at 12:25
  • 1
    On PCs this old, the SATA controller was usually a third-party SATA FakeRAID controller. You won’t find its hard drives in BIOS setup.
    – Daniel B
    Commented Jun 5, 2021 at 14:13

1 Answer 1

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As you do not mention the use of using an additional controller card I assume you have a mainboard that provides SATA and IDE support, sometimes using additional chips. In this case you have to search other places in your BIOS for settings like: "enhanced mode/compatible mode" "PATA1 + PATA2" "PATA + SATA"

You have to select a mode that supports both type of drives like "enhanced mode" or "PATA + SATA".

It is possible that you may switch off the "AHCI" setting.

Your documentation is very poor. Please try to provide the name and manufacturer of your mainboard either by looking at it or running for any further information.

Sometimes additional chips on the board can be switched on and off. You need the on position.

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