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From: shack@cs.arizona.edu (David Michael Shackelford)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: PS/2 Model 50 loses track of time
Message-ID: <441@caslon.cs.arizona.edu>
Date: 5 Oct 90 06:56:12 GMT
References: <01.Oct.90.132740.9@cogsci.cog.jhu.edu> <1398@msa3b.UUCP>
Distribution: usa
Organization: U of Arizona CS Dept, Tucson
Lines: 26

In article <1398@msa3b.UUCP> mgphl@msa3b.UUCP (Michael Phillips) writes:
>wjb@cogsci.cog.jhu.edu (William J. Bogstad) writes:
>
>
>>	I have a PS/2 Model 50 under my care which seems to lose track of
>>time.  If it is turned off for a period of time (a couple of hours?) it stops
>> [...]

>In the early days of PS/2 mod 50s, we had the same type problem.  This was
>corrected with (honest!) a device driver named DASDDRV.SYS (or DASDRV.SYS ?).

That's DASDDRVR.SYS and it patches a couple of BIOS problems.  I thought
it was meant to be a driver for the hard disk, since DASD is the name
IBM uses for disk drives, but it doesn't seem to make any difference
at all in hard drive access.  My system kept track of time properly,
but lost exactly one day if I kept it powered up past midnight because
the day counter wasn't incremented.  DASDDRVR fixed the problem immediately.

If you're already using this driver, then I suspect the battery.  There
might be a diagnostic on the reference diskette which can help.  If you
run all of the diagnostic programs except the one that formats the hard
drive, it might indicate if there's a problem.

Hope it's not anything more serious!

Dave       |   shack@cs.arizona.edu