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Windows 10-compatible motherboard with dual floppy drives?

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  • yuhong
    replied
    Originally posted by krebizfan View Post
    Please note that for some AMD chipsets, it is necessary to turn off the High Precision Event Timer in order to use the motherboard floppy controller.
    Yes, this is because of chipset errata related to ISA/LPC DMA and HPET.

    Leave a comment:


  • luckybob
    replied
    Originally posted by Shadow Lord View Post
    Forgot to ask: What OS are you running on that bad boy? Another issue is that more modern MS OSes (which you would run on a more modern MB) see to have dropped support for the older HW. Linux is probably a different story....
    windows 7. works just fine, no issues at all.

    Leave a comment:


  • Shadow Lord
    replied
    Originally posted by Chuck(G) View Post
    So, for example, you could implement a 4-drive controller when all you have is a single drive motherboard by adding a BIOS and implementing the select and motor control logic externally. Since it's a write-only register, that doesn't interfere with a thing. An add-in PCI board could do the trick.
    Chuck,

    Maybe it is time for P4-FDC project to supplement the XT-FDC?

    Leave a comment:


  • Chuck(G)
    replied
    Originally posted by NeXT View Post
    I seem to recall there was a few machines from the P4 and early Core2 era where the controller still supported two drives, however the BIOS omitted the code for configuring the second drive and electrically the ere was no connection between the socket and the controller. My MSI board is one of them.
    Much of the time, it's the pinout on the super I/O chip. The pins are over-subscribed, so you take your choice between getting a parallel port or a second floppy drive, for example.

    But even that's not so bad. Remember that unit select and motor control are external to the FDC core logic. They're just implemented with a simple latch located at port 3F2H. So, for example, you could implement a 4-drive controller when all you have is a single drive motherboard by adding a BIOS and implementing the select and motor control logic externally. Since it's a write-only register, that doesn't interfere with a thing. An add-in PCI board could do the trick.

    Leave a comment:


  • Shadow Lord
    replied
    Originally posted by luckybob View Post
    the bios claims to. i dont have a 2.88 drive to test it, but it does work fine with my 1.2 5.25 floppy.
    Forgot to ask: What OS are you running on that bad boy? Another issue is that more modern MS OSes (which you would run on a more modern MB) see to have dropped support for the older HW. Linux is probably a different story....

    Leave a comment:


  • luckybob
    replied
    the bios claims to. i dont have a 2.88 drive to test it, but it does work fine with my 1.2 5.25 floppy.

    Leave a comment:


  • Shadow Lord
    replied
    Originally posted by luckybob View Post
    +1 for shadowlord

    My garage pc has bios support for only one drive. however it does support everything for 360kb to 2.88mb. So i put mnt 5.25 1.4mb drive there. I used a usb 3.5 drive for a while and an LS-120 via pci->u66 card. works just fine. Its kinda funny to see a powerful quad core xeon with zip, 5.25, and ls120 on the front. ^.^
    Luckybob,

    Your supports 2.88 drives and 5.25"? I checked the link you provided and it only mentioned 1.44MB drives. If it does 5.25" it becomes more interesting to me....

    Leave a comment:


  • NeXT
    replied
    I seem to recall there was a few machines from the P4 and early Core2 era where the controller still supported two drives, however the BIOS omitted the code for configuring the second drive and electrically the ere was no connection between the socket and the controller. My MSI board is one of them.

    I think we're approaching a point where it might be easier to salvage the appropriate controllers from junked P4 boards or something and drop them onto a fabbed PCB so we CAN get dual floppy support in a variety of formats and capacities, but it has a more modern USB interface. The Winbond W83627THF was a pretty common one. Also supports up to four floppy drives.
    Last edited by NeXT; March 17, 2016, 11:00 AM.

    Leave a comment:


  • luckybob
    replied
    +1 for shadowlord

    My garage pc has bios support for only one drive. however it does support everything for 360kb to 2.88mb. So i put mnt 5.25 1.4mb drive there. I used a usb 3.5 drive for a while and an LS-120 via pci->u66 card. works just fine. Its kinda funny to see a powerful quad core xeon with zip, 5.25, and ls120 on the front. ^.^

    Leave a comment:


  • Shadow Lord
    replied
    The two floppy drive support is going to be very tough. Even in the MBs w/ FDD support the support had been limited to one drive - usually a 1.44MB. My last system to have full floppy support was a Pentium IV board w/ Dual Floppy supports from 360KB to 2.88. It also knew about ls-120/ls-240/zip drives in the BIOS. Of course that system still had ISA support as well! I'd be interested to see if you find any "newish" MB that support two floppy drives and maybe even ED (2.8 drives.

    Leave a comment:


  • KC9UDX
    replied
    And many did, unfortunately.

    Leave a comment:


  • GottaLottaStuff
    replied
    No motherboards fit the 5150 case except 5150 boards, unless you cut up the back of the case. The slots are too far apart. IBM moved them closer together on the XT and that has been the standard ever since. You may have to cut the drive bays for clearance, as well.

    Leave a comment:


  • mike52787
    replied
    My msi x58m board supports only 1 floppy drive, but it supports 360kand 1.2m 5.25s and 720k and 1.44m 3.5s. there may also be a way to enable 2 drives. bit if youre going for the authentic 5150 look just use an original 5150 drive and have an external 3.5. That is the only newish board I know of to support it, and its micro atx, which would work perfectly with the 5 slots on the 5150.

    Leave a comment:


  • luckybob
    replied
    I've seen this come up before and I think I have the best solution. This is the board I personally use in my garage. It is small, POWERFUL and has an extra cool factor of having 2 sockets.

    http://www.supermicro.com/products/m...00/X7DCA-L.cfm

    That said, the bios only supports one floppy drive. I worked around this by placing my 5.25 drive on the mobo and using an LS-120 drive as my 3.5 drive.

    Leave a comment:


  • krebizfan
    replied
    Please note that for some AMD chipsets, it is necessary to turn off the High Precision Event Timer in order to use the motherboard floppy controller.

    Leave a comment:

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