5 1/4" floppy drive install

By i_need_answers ยท 18 replies
May 6, 2005
  1. hi,
    im installing A 5 1/4" floppy drive so i can take the data off a whole bunch of big floppies i have lying around....well i have the drive but when i hook it up with my 3 1/2" (the same cable) it says it has some kind of problem on boot-up and it can't recognize either drive. when i hit f2 it moves on and boots properly.....anything i should know about 5 1/4" floppy drives?
    Thanks. you guys help alot
  2. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 6,503

    You need to change the BIOS setup as well. The A-drive is set to 3.5"/1.44MB. The B-drive must be set to 5.25"/1.2MB drive. Use the up/down or pageup/pagedown keys when in BIOS to change it.
  3. i_need_answers

    i_need_answers TS Rookie Topic Starter Posts: 76

    thanks ...ummm

    But when im in the Bios i can only see the A:drive and not the B: drive ....so I was wondering if i have to do anything special to be able to see it? also i was wondering if my motherboard is compatable. its a asus p4g533.\
  4. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    You are not supposed to see the B: drive, you are supposed to set it to 1.2MB manually.. It is under the basic BIOS settings usually.
  5. Mictlantecuhtli

    Mictlantecuhtli TS Evangelist Posts: 4,345   +11

    There should be a jumper on the 5 1/4 drive to set it as B:.
  6. i_need_answers

    i_need_answers TS Rookie Topic Starter Posts: 76


    thanks but....i dont exactally see a jumper on the 5 1/4 drive....i see the little thingies that im not sure what are called that hooks up to the cable and i see the power plug hole. what hooks up to the cable (im not sure if you call floppy cables ide or what) looks simular to the connector side of a pci card if that makes any sense..... well thanks for your help.
  7. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 6,503

    You'll also need an older type of combined floppy-cable, the connector after the cabletwist, at the end of the cable, goes to your A/3.5", and the PCIslot-lookalike connector goes onto the B/5.25".
    AFAIK there are no jumpers to be set.
    If you can't get such a cable, or find one with only PCIslot-lookalike connectors, set your BIOS A-drive to 5.25 and connect the 5.25 drive to the connector AFTER the twist, at the end of that floppy cable.

    Look at this picture to see the difference, the bulky connector on the left goes to the 5.25" drive.
  8. Mictlantecuhtli

    Mictlantecuhtli TS Evangelist Posts: 4,345   +11

    I guess my drive is special then...

  9. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 6,503

    I can't remember my last 5.25" drive, some 8-10 years ago I guess.
    Didn't know they had any jumpers (what for, Drive Select?)
    One of my early PCs had a 4-floppy adapter-card, I think I still have that somewhere.
  10. i_need_answers

    i_need_answers TS Rookie Topic Starter Posts: 76


    k, thanks now i switched the cables around and I dont get the error message when i boot up but i cant seem to access the 5 1/4" floppy from "my computer" but the 3 1/2" seems to be working fine.
    any help?? thanks a bunch
  11. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 6,503

    If it does not show up in Windows Explorer, go get TweakUi for XP from MS.
    The B-drive might be UNticked in the 'My Computer' tab.
  12. i_need_answers

    i_need_answers TS Rookie Topic Starter Posts: 76


    thanks for all your help. but i get the 5 1/4" drive past the BIOS with no problem but it doesn't even show up under the hardware manager and i already made sure it was ticked
  13. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

    I seem to remember the older floppies having the twisted cables. Any good computer salvage store should have it. Too bad I'm no longer in the business full time. I'd probably send you one at cost.
  14. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 6,503

    Has it occurred to you that the 5.25" drive might be defective?
  15. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

    I also seem to remember the lifespan of 5 1/4 floppies was really bad. It could be that he's having a hard time reading the disk if the drive is working. - that's the key ... is the drive being recognized now?
  16. Eric the Red

    Eric the Red TS Rookie

    Some things to check for 2nd floppy install

    I'm new to this forum so this may be moot, but a few things I would do to check if the 5 1/4" FDD works would be:

    1) Disconnect the 3 1/2" FDD and connect the 5 1/4" FDD to the same connector. Make sure you have the 1 pin orientation correct. Adjust the BIOS setting accordingly. If you can get the drive to work then that's one problem out of the way.

    2) If you do have the option to ENABLE a second FDD then attach the 3 1/2 to the middle connector. Typically the first FDD is attached to the end connector and the second FDD to the middle connector. Once again check the BIOS setting.

    3) Some new motherboards do not have a option for two (2) FDD. It was a surprise to me, but its true! You may not be able to attach a second FDD to the motherboard without installing an adapter card...if they make them. I have no experience with USB floppy drives, but this might be a solution.

    I hope this helps.
  17. Smurf

    Smurf TS Rookie

    If memory serves me right the 5 1/4 drive had a totaly different connector so this won't be possible.
    The leads I remember had 4 plugs on them. The top 2 were for the A drive, then there was a twist in a couple of the wires and then 2 connectors for the B drive. I would imagine you won't get the beast to run unless you manage to unearth one of these old cables from somewhere.
  18. Eric the Red

    Eric the Red TS Rookie

    Connector problem

    I forgot about that small detail. :) I still have one or two of these old cables just in case I ever need one. Let me know if you need one. I also remember that there was an adapter to fit the 3-1/2" FDD (pin style connector) to the flat finger style cables and/or maybe the other way round. I'll take a look to see if I have one.
  19. okeefe58

    okeefe58 TS Rookie

    I know this is an old post, but it might help someone else, like I just figured it out today- there are two sets of each connector, a 5 1/4 and a 3 1/4 at the end, and the same further down the cable- you know how you were wondering why the hell they put that 3 1/4 connector so close to the 5 1/4 connector? because your not supposed to use both- u use one OR the other, not both -the 5 1/4 is supposed to be connected the the OTHER connector further down the cable, closer to to mobo, which are the b connectors, and the 3 1/4 drive goes at the end of cable, A connectors. took me awhile to figure out also, so dont feel dumb
Topic Status:
Not open for further replies.

Similar Topics

Add your comment to this article

You need to be a member to leave a comment. Join thousands of tech enthusiasts and participate.
TechSpot Account You may also...