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Article #4302PS/2 CMOS format
From: David Wright
Date: Mon, 21 Jan 1991 01:38
Date: Mon, 21 Jan 1991 01:38
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1880 bytes
I have run INFOPLUS 1.40 on a friend's PS/2 model 70. I found many
abnormalities on the CMOS page, including a checksum error and no
hard disk indicated. At first, I suspected that someone may have
tampered with the machine, but now I am wondering if the format for
the CMOS that INFOPLUS appears to be using (correct for AT) is
correct for PS/2. Could someone tell me the format of the PS/2
(Model 70) CMOS is (if it indeed differs from AT)?
BTW, I have run the automatic setup from the configuration disk,
which looks correct for the machine.
For additional info, here is the dump of the CMOS contents:
00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
-------------------------------------------------
00 | 08 00 48 00 14 00 07 20 01 91 26 02 50 80 00 00
10 | 44 00 00 00 43 80 02 00 11 ff ff ff ff ff ff ff
20 | ff 01 00 00 00 01 00 00 00 01 00 00 00 54 28 00
30 | 00 9f f0 e6 10 00 11 19 00 00 00 00 00 00 00 00
The machine is a PS/2 model 70 with 5M memory, 60M ESDI harddisk,
two 3.5 1.44M floppies, and 1 parallel, 1 serial, and 1 mouse port.
While most of the configuration is correct (according to AT format),
byte 12h is incorrect (harddrive = 00h, none installed) and bytes
after 09h are inconsistent with the AT format.
Thank you for any info or assistance you can provide!
-David Wright
wright@cs.uiuc.edu
Technical Details
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<1991Jan21.013821.31471@cs.uiuc.edu>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!wuarchive!julius.cs.uiuc.edu!ux1.cso.uiuc.edu!cs.uiuc.edu!wrightShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!wuarchive!julius.cs.uiuc.edu!ux1.cso.uiuc.edu!cs.uiuc.edu!wright From: wright@cs.uiuc.edu (David Wright) Newsgroups: comp.os.msdos.programmer Subject: PS/2 CMOS format Summary: Is PS/2 different than AT Message-ID: <1991Jan21.013821.31471@cs.uiuc.edu> Date: 21 Jan 91 01:38:21 GMT Sender: news@cs.uiuc.edu (News Database (admin-Mike Schwager)) Distribution: usa Organization: University of Illinois, Dept. of Comp. Sci., Urbana, IL Lines: 29