OS2 World Community Forum

OS/2, eCS & ArcaOS - Technical => Hardware => Topic started by: John Poltorak on June 18, 2017, 10:00:50 pm

Title: Reference diskette for PS/2 Model 95
Post by: John Poltorak on June 18, 2017, 10:00:50 pm
Venturing into the loft I couldn't help wondering if my old IBM PS/2 Model 95 would start up. It hasn't been switched on for 10 years, but I have WSeB installed on it and used to use it as a RIPL server so I wanted to know if it still worked. Unfortunately there were startup errors which needed a Reference diskette, which I found but it couldn't be read, so I'm trying to create a new one, but all the old IBM files have either been deleted or moved elsewhere. Anyone know where to look?
Title: Re: Reference diskette for PS/2 Model 95
Post by: Neil Waldhauer on June 18, 2017, 11:16:28 pm
You need to visit http://ohlandl.ipv7.net/ (http://ohlandl.ipv7.net/) (9595 - Ardent Tool of Capitalism)

Post if you get ArcaOS running on it.
Title: Re: Reference diskette for PS/2 Model 95
Post by: Dennis Smith on June 19, 2017, 05:20:19 am
The ipv7.net site is an old mirror of the Ardent Tool.   Louis keeps the most up to date version on Kevin Bowling's server at http://ps-2.kev009.com/ohlandl/

There are four different types of processor complexes used in the PS/2 95 and each uses a specific Reference Disk.  The complexes can be identified on this page
as well as the Reference/Diag Disks download files:  http://ps-2.kev009.com/ohlandl/complexes/Complex_ID.html

Make sure to replace the CR2032 CMOS battery as low voltage has been known to cause erroneous memory errors and other hardware oddities
on PS/2 90/95 machines.

The comp.sys.ibm.ps2.hardware Usenet newsgroup is still up and running after all these years and always a good place for IBM PS/2 related information and
questions.
Title: Re: Reference diskette for PS/2 Model 95
Post by: John Poltorak on June 20, 2017, 11:43:43 am
The ipv7.net site is an old mirror of the Ardent Tool.   Louis keeps the most up to date version on Kevin Bowling's server at http://ps-2.kev009.com/ohlandl/

There are four different types of processor complexes used in the PS/2 95 and each uses a specific Reference Disk.  The complexes can be identified on this page
as well as the Reference/Diag Disks download files:  http://ps-2.kev009.com/ohlandl/complexes/Complex_ID.html
Quote

I spent most of yesterday trying to bring get the beast back to life. First find a working floppy drive, then a diskette which hasn't gone bad, then find where to download the reference diskette img, then find a way of creating a diskette. Then wonder which of the four images  is the one I want. Eventually after trying all four, the same msg kept coming up 'This diskette does not work with this complex, the system is locked :(((


Make sure to replace the CR2032 CMOS battery as low voltage has been known to cause erroneous memory errors and other hardware oddities
on PS/2 90/95 machines.

The comp.sys.ibm.ps2.hardware Usenet newsgroup is still up and running after all these years and always a good place for IBM PS/2 related information and
questions.

I used to participate there quite a bit, but haven't used any of my PS/2 in 10 years.

Guess I'll try changing the battery as a first step, if I can find it.
Title: Re: Reference diskette for PS/2 Model 95
Post by: Dennis Smith on June 21, 2017, 08:21:41 am
CMOS battery is on the planar behind the power supply.   The PSU has a blue twist knob that you unscrew and tilt the PSU down.  Then the battery
and memory SIMM connectors should be visible.

What is the model number of the PS/2 95?  It should be under the power button.  Can you post a picture of the processor complex?
Title: Re: Reference diskette for PS/2 Model 95
Post by: John Poltorak on June 23, 2017, 01:52:54 pm
CMOS battery is on the planar behind the power supply.   The PSU has a blue twist knob that you unscrew and tilt the PSU down.  Then the battery
and memory SIMM connectors should be visible.

What is the model number of the PS/2 95?  It should be under the power button.  Can you post a picture of the processor complex?

I'm away at the moment, but will do so on my return.