February, 1994


24
Feb 94

Just Stop Using The Fridge Magnet On The PC Case

Newsgroups: comp.sys.ibm.pc.hardware.chips
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From: mvale…@draco.lnec.pt ()
Subject: * HELP: Weirdest memory problem ever !!
Message-ID:
Sender: n…@math.fu-berlin.de (Math Department)
Nntp-Posting-Host: draco.lnec.pt
Organization: LNEC, Lab. Nac. de Eng. Civil, Lisboa, Portugal
X-Newsreader: TIN [version 1.1 PL8]
Date: Thu, 24 Feb 1994 12:15:05 GMT
Lines: 63

Hi:

This must be the craziest problem ever to happen to me in
12 years of computers. I hope someone can help…

I have a 386 running at 25Mhz. This is installed in a
MB with AMI BIOS ( a very old one, from 91, I think; all the
menus in the SETUP program are in B&W and the initial menu
just has EXIT/STANDARD CMOS/EXT. CMOS ). It also has the OPTI
chipset.

I have 8Mb memory ( the maximum that the MB will hold ) and
all the SIMMs ( 8 of them ) are 70ns.

My wife started having problems with Corel Draw and I gave
her my 486 motherboard ( nice guy that I am :-) and put the
386 MB in my computer. When running DOOM ( what else :-) the
computer locked up when loading the WAD file. I messed around
with the BIOS setup and got it to a point where instead of
locking up the DOS extender that DOOM uses would fail with a
page fault.

I also found out that the same lockups would occur when
running Fractal Painter under Windows.

Deciding that this was a memory problem I pulled out trusty
Checkit and checked memory.
Right enough, Checkit reported bad memory on section 7-8 meg.
Aha, I said, bad SIMM. NOT!: I substituted another SIMM from
the other computer and I got the same error. Aha!, bad SIMM
socket. BZZT, wrong again… I configured the PC to just use
4 Meg RAM and now the memory error reported by Checkit was
in the zone 3-4 Meg.

Can you believe this !?!? Anyone have the slightest idea of
what this might be ?

One other thing: by fiddling around with the BIOS setup,
sometimes Checkit would lockup or reboot the machine instead
of reporting errors.

What I’m thinking right now is that this must be some kind
of BIOS setup mistake ( though God know I’ve tried every
combination possible ) but its quite difficult to setup a
BIOS that old ( do you know what AT Stretch is ? )

Any hints/pointers/tips/info/help are welcome. I’m going
out of my mind.

Thanks in advance for your answer.

C U!

By(e)

Mario Valente


22
Feb 94

Ahhh… Nothing Like Doom on a 386

Newsgroups: alt.games.doom
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From: mvale…@draco.lnec.pt ()
Subject: HELP!: DOS/4GW error exception 0Eh (page fault)
Message-ID:
Sender: n…@math.fu-berlin.de (Math Department)
Nntp-Posting-Host: draco.lnec.pt
Organization: LNEC, Lab. Nac. de Eng. Civil, Lisboa, Portugal
X-Newsreader: TIN [version 1.1 PL8]
Date: Tue, 22 Feb 1994 10:05:06 GMT
Lines: 54

Yo:

My Doom was playing allright on my 486. Not quite, because
my SBPro would freeze about 30 seconds into the game.

Thats why I switched to my 386. Now when I run DOOM I get
this:

[ Usual DOOM startup output deleted ]

R_Init: Init DOOM refresh daemon………………
DOS/4GW Professional error (2001): exception 0Eh (page fault) at 170:0047ACAA
TSF32: prev_tsf32 6814
SS 178 DS 178 ES 178 FS 0 GS 20
EAX 29C9A68 EBX 99ADBA ECX 2A48 EDX 65
ESI 16E8 EDI 50330 EBP 65 ESP 4EBB9C
CS:IP 170:0047ACAA ID 0E COD 990000 FLG 10216
CS= 170, USE32, page granular, limit FFFFFFFF, base 0, acc CF9B
SS= 178, USE32, page granular, limit FFFFFFFF, base 0, acc CF93
DS= 178, USE32, page granular, limit FFFFFFFF, base 0, acc CF93
ES= 178, USE32, page granular, limit FFFFFFFF, base 0, acc CF93
FS= 0, USE16, byte granular, limit 0, base 15, acc 0
GS= 20, USE16, byte granular, limit FFFF, base 6270, acc 93
CR0: PG:1 ET:1 TS:0 EM:0 MP:0 PE:1 CR2: 29C9A6C CR3: 9000
Crash address (unrelocated) = 1:00029CAA

Nice, aint it ? :-(

Anyone know what this is ? iD ?

I’m running Doom on a 386/25 with AMI BIOS. I have a Soundblaster Pro
at 220,7,1.

By fiddling with the CMOS setup I’ve managed to: cause the computer to
reboot at the same point as above; cause the computer to lockup at same
point; cause computer to lockup during gameplay ( this was with clean boot,
no CONFIG.SYS and no AUTOEXEC ); cause Doom to stop with a message like
“Error: freed pointer with no ZONEID”.

What the hell is going on ?!?!??

C U!

By(e)

Mario Valente