Not a Win10 question but a general Win question


  1. Posts : 44
    Windows 10
       #1

    Not a Win10 question but a general Win question


    This may be off topic but I am looking for some advice.

    I have an older win 2k computer from the late '90s which has a bug with Bios initialization of the PCI bus. I know what needs to be fixed by reconfiguring PCI chipset to fix the issue. This however needs to be done within the Bios. Obviously, a bios upgrade is not happening so I am curious as to how to have the bios boot into MsDos, run a small app to fix the issue, then subsequently jump into Win2K without a reboot. I know this has been done by booting into Linux, running an app and then jumping into Windows. However, I am not fluent in Linux (and don't know how it is done, only that it has been done) and was wondering if this is possible within MsDos? This is the very type of thing Microsoft doesn't want to occur due to security issues but I thought that it might be possible with the technology of the time.

    Does anyone have any insight as to how and do this?
    Any insight would be appreciated.
    Jim
      My Computer


  2. Posts : 8,098
    windows 10
       #2

    Wont a cmd prompt do it?
      My Computer


  3. Posts : 44
    Windows 10
    Thread Starter
       #3

    Hi -
    Are you referring to the CMD prompt from within Win2K? If so, I need to make the PCI configuration modification before Windows boots in order for Window to properly enumerate the PCI bus, etc.
      My Computer


  4. Posts : 8,098
    windows 10
       #4

    Your not specific why can't you flash the BIOS? What does the program do alter the BIOS or other running a command at start up may work or you maybe able to do it via a boot manager with knowing full details it's hard to say
      My Computer


  5. Posts : 4,779
    Windows 11 Pro 64 Bit 22H2
       #5

    What is the Make and Model# of the Motherboard?
    If you can boot into Setup (Bios) then start by setting the Bios to Defaults or Optimized Defaults. Save and Exit.
    Depending on the Make and Model # of the motherboard you can choose to Flash the Bios and browse to a Flash drive with your app on it, or do a Bios Update.
      My Computer


  6. Posts : 890
    10 Pro/11 Pro Dual Boot
       #6

    rfdes said:
    This may be off topic but I am looking for some advice.

    I have an older win 2k computer from the late '90s which has a bug with Bios initialization of the PCI bus. I know what needs to be fixed by reconfiguring PCI chipset to fix the issue. This however needs to be done within the Bios. Obviously, a bios upgrade is not happening so I am curious as to how to have the bios boot into MsDos, run a small app to fix the issue, then subsequently jump into Win2K without a reboot. I know this has been done by booting into Linux, running an app and then jumping into Windows. However, I am not fluent in Linux (and don't know how it is done, only that it has been done) and was wondering if this is possible within MsDos? This is the very type of thing Microsoft doesn't want to occur due to security issues but I thought that it might be possible with the technology of the time.

    Does anyone have any insight as to how and do this?
    Any insight would be appreciated.
    Jim
    is this just a simple old irq conflict?
      My Computers


  7. Posts : 44
    Windows 10
    Thread Starter
       #7

    Thanks for the responses. I will try to explain my situation.

    The motherboard was a custom motherboard designed by a company named Radisys in the mid '90s. The motherboard supports the operation of an instrument used for testing logic devices in a laboratory environment. The bios is no longer supported and I believe the company is no longer in existence. The motherboard does not have any PCI slots available for use. There, however, is an unpopulated location for a PCI connector. I have populated the PCI location with a socket and jumped several locations to connect the clk,etc. Th 4 IRQ (A..D) are all physically routed to the Southbridge component. My desire to use this PCI port is to support a 10/100 NIC card as there is no Ethernet capability with this instrument.

    So, with the hardware modified as described, the bios recognizes the PCI card installed but complains that no IRQ has been assigned. For reasons I do not know, the bios does not assign an IRQ for my card. Booting into windows (Win2K by the way), I am not allowed to manually assign an IRQ. My idea was to use the PCI bios services (INT 1Ah) to force an IRQ assignment *prior* to booting into Windows. I've heard that this can be done but have no idea how to do it.

    If anyone has any suggestions, it would be appreciated.
      My Computer


 

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