Image Map Image Map
Results 1 to 5 of 5

Thread: PS/2 8590 keyboard/floppy question

  1. #1
    Join Date
    Aug 2018
    Location
    Dresden, Germany
    Posts
    3

    Default PS/2 8590 keyboard/floppy question

    Hi there,

    so recently I bought myself a PS/2 8590 without a harddrive. The system boots up and shows an I9990022 Error - so far, so good. From what I've learned, it's pretty normal since the machine is searching for crucial Boot-Files on a harddisk or floppy. Because the floppy drive (2,88MB variant) LED lights up all the time and does not like any disks, it's shot and atm not usable.

    However, is it normal, that the system (in this state) does not respond to keyboard commands like F1 or Ctrl-Alt-Del? Or do I also have a shot keyboard controller/port?

    What else can I do to replace the floppy drive? I've already read some posts on replacing it with a standard drive, but some say you only need to cut the power lines, cut pin 4 on the floppy and ground that on the cable (I think it was this site: https://ps1stuff.wordpress.com/how-t...y-replacement/ ) and thats it, other say you have to solder some resistors to pull up 5 signals (http://www.vcfed.org/forum/showthrea...2-floppy-drive). Does anyone already replaced a floppy in his 8590 with a standard one/or maybe a gotek and has some details on doing so?

    Thanks in advance,
    Stefan

  2. #2
    Join Date
    Sep 2009
    Location
    Dallas, Texas, USA
    Posts
    60

    Default

    Stefan, no, it should respond to the keyboard. When you first turn on the 8590 (I have a 8590-0J5) the keyboard LEDs should flash on/off. Do they?

  3. #3
    Join Date
    Oct 2008
    Location
    Kamloops, BC, Canada
    Posts
    5,659
    Blog Entries
    43

    Default

    I'd start by first satisfying its requirement for a hard disk, then service the floppy drive and make sure all cabling is secure before assuming the floppy drive (especially a 2.88 ) is bad.
    = Excellent space heater

  4. #4
    Join Date
    Feb 2011
    Location
    NorthWest England (East Pondia)
    Posts
    2,175
    Blog Entries
    10

    Default

    Quote Originally Posted by schimmi View Post
    Hi there,

    so recently I bought myself a PS/2 8590 without a harddrive. The system boots up and shows an I9990022 Error - so far, so good. From what I've learned, it's pretty normal since the machine is searching for crucial Boot-Files on a harddisk or floppy. Because the floppy drive (2,88MB variant) LED lights up all the time and does not like any disks, it's shot and atm not usable.

    However, is it normal, that the system (in this state) does not respond to keyboard commands like F1 or Ctrl-Alt-Del? Or do I also have a shot keyboard controller/port?

    What else can I do to replace the floppy drive? I've already read some posts on replacing it with a standard drive, but some say you only need to cut the power lines, cut pin 4 on the floppy and ground that on the cable (I think it was this site: https://ps1stuff.wordpress.com/how-t...y-replacement/ ) and thats it, other say you have to solder some resistors to pull up 5 signals (http://www.vcfed.org/forum/showthrea...2-floppy-drive). Does anyone already replaced a floppy in his 8590 with a standard one/or maybe a gotek and has some details on doing so?

    Thanks in advance,
    Stefan
    Firstly I would try cleaning the floppy. Secondly the Model 8590 is rather pickier about drives than the PS/1. It uses several other lines on the "odd pin" side. Info here:-

    http://www.tavi.co.uk/ps2pages/ohland/floppy.html
    Dave
    G4UGM

    Looking for Analog Computers, Drum Plotters, and Graphics Terminals

  5. #5
    Join Date
    Aug 2018
    Location
    Dresden, Germany
    Posts
    3

    Default

    Hi,

    thanks for your responses!

    @booboo
    the keyboard LEDs flash shortly, like they do on a 'normal' PC. After that, the screen goes dim for some seconds and then I'm greeted with the IML Error. From what I've read, POST and BIOS code is stored on a disk anywhere so I think it's pretty normal the keyboard isn't working without the basic boot code found anywhere. http://www.tavi.co.uk/ps2pages/ohlan...#POST_Bios_IML (I guess you're machine is working fine without throwing an IML error, so your keyboard is working at all)
    That gives me some hope

    @NeXT
    The harddrive is already there, I'll use my SCSI2SD card. However, without the possibility to boot a refdisk to configure the system, I'll address that floppy-problem first

    @g4ugm
    I already tried that, i cleaned the heads + the drive itself, changed the caps and after doing so i found out, that the motor moving the heads is stuck. I think the drive is done.
    If the Model 90 is pickier than older models, that would explain alot. For my 8570, I already did a floppy mod with the pull-ups, but with the 8590 I had no luck so far. I will take a closer look at the link you gave, thank you!

    Anyone had luck with a gotek floppy emulator? Doesn't make much sense to me buying a 100$+ original floppy that has the same issue after 1-2 days of usage.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •