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ibm ps 2 model 55sx no video

June 23, 2011 at 11:13:27
Specs: Windows 3.1

My IBM ps/2 has no video. It worked before I installed a new ds1287 chip and now there is no video output to the monitor. How can I get video back? I have a extra video card but it doesn't fit. Any help is appreciated!

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#1
June 23, 2011 at 19:27:14

Put the old chip back in and see what happens.

Check that ram, cpu and any add-on cards are firmly inserted.

Verify that any other connections you may have removed or loosened when inside the case are properly attached.


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#2
June 24, 2011 at 08:24:57

I modified the old ds1287 chip with an external battery. I have two brand new ds12887 chips I bought from amazon. I also made sure all connections were inserted properly. Still no video output to the monitor. Thank you for your response!

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#3
June 24, 2011 at 16:11:31

You may need the reference disks to reconfigure the system (since you pulled the DS1287, you likely lost your system configuration). Do you have the disks, or do you know how to make a set from an available download? This would be the set for the Planar board (make sure that's what you have):

http://ps-2.kev009.com:8081/ohlandl...

"Channeling the spirit of jboy..."


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Related Solutions

#4
June 24, 2011 at 16:48:23

I downloaded the binary file to a floppy disk. Have I done that properly? Yes I have the late 8555SX Planar.

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#5
June 24, 2011 at 18:40:39

The floppy drive also does not work. The hard drive attempts to boot, then the floppy is supposed to do something but doesn't. Pulling out the floppy drive I discovered that the cord connecting the floppy drive to the board had the first wire broke. How do I fix this or get a new one? Could this be the reason the computer is not running? Thanks for everything!

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#6
June 25, 2011 at 06:34:31

"I downloaded the binary file to a floppy disk. Have I done that properly?"

No. You have to download the file to a hard drive and make a bootable reference disk on the floppy. Running the executable should be self-explanatory. I remember somewhere (been a long time ago) that it was best to do this on a machine running DOS/Win3.1 (something about how the floppy disks were formatted). That may have been for the .ADF files, so I'm not certain (been a long, long time since I've worked on a PS/2).

"Pulling out the floppy drive I discovered that the cord connecting the floppy drive to the board had the first wire broke."

If memory serves (and it may not), a standard floppy cable should suffice. Make sure it's "broke" and not "intentionally cut", which would indicate something particular about that floppy configuration. Do a Google search on "floppy drive cable" and you should be able to find who has them.

Some links that may assist with the machine:

http://www.mcamafia.de/mcapage0/mca...

http://members.chello.at/theodor.la...

http://www.tavi.co.uk/ps2pages/

http://ps2page.tripod.com/

http://john.ccac.rwth-aachen.de:800...

http://www.instructables.com/id/Rev...


"The floppy drive also does not work."

You'll have to get that working to ever set up the configuration on the machine.

Also, don't be terribly surprised if the hard-drive doesn't work either, you're working with a machine that's probably over 20-years old.

"Channeling the spirit of jboy..."


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#7
June 25, 2011 at 18:24:42

I think the floppy cables on those old IBMs were proprietary and only worked with those IBM drives. The same cable provided both power and data.

I was under the impression nothing at all showed up on the screen. Most of the time if it needs the reference disk you'll see an image of a floppy drive with arrows pointing to the slot, indicating it wants you to put a disk in. If you're not getting that the problem may be elsewhere. But give the reference disk a try. I think you can also try a regular floppy bootdisk, just to see if that will load. It won't configure the system the way a reference disk will but you'll probably be able to tell if you just need the reference disk or if there's another problem.


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#8
June 25, 2011 at 19:06:46

Yes nothing shows up on the screen. The hard drive attempts to start up then the floppy drive is supposed to read or at least make noises. It doesn't do anything. I tried regular floppy drive cables and I got the same result. I purchased a new floppy drive cable. I hope this at least gets the floppy drive to work.

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#9
July 6, 2011 at 16:25:29

First off thank you to everyone who has input help. I received a new floppy cable and I got the same results :(. I'm not sure where to go now. I have replaced the ds1287 with a ds12887 and replaced the floppy drive cable. Still no video on the monitor and the computer makes noise for about 2 sec. After that the floppy drive is supposed to try to read and doesn't. Any more help is appreciated!

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#10
July 6, 2011 at 22:26:48

It could be anything. Any suggestion is just a wild guess. You can check my # 2 here for some ideas:

http://www.computing.net/answers/ha...

A lot of that wouldn't apply to your proprietary IBM system but disconnecting as much as possible might point to a particular item.

Then as much as you can, put it back together the way it was when it worked. Make sure all data and power connections are tightly connected.


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#11
July 23, 2011 at 22:07:43

Try this link: and search "floppy drive" and u can get a new one for 10$ (if it's on sale) if u need it. "makes noise". That narrows it down. what kind of noise? HDD spinning up? internal speaker whining? what? u need to be more specific in future posts.

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#12
August 2, 2011 at 17:52:55

I received my new floppy drive cable. Still nothing. By "making noise" I mean that it tries to find something in the floppy drive, possibly the HDD starting up. I'm about to determine this computer is doomed :(

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#13
August 2, 2011 at 22:36:35

Yeah, I think you might be at a dead end with trying to fix it.

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