Motherboard gone wrong

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3 total messages Started by Sonia Richards Sun, 04 Jun 1995 00:00

#12144

Author: Sonia Richards
Date: Sun, 04 Jun 1995 00:00

18 lines
1519 bytes

Hi,

I have a PC with a 386DX40 Motherboard, 8Mb RAM and the 3C87-40 co-pro. 
Recently I noticed the computer's performance had dropped considerably
when any OS/2, DOS or Windows software.  I originally thought it might be
a virus, however a check with 3 recent anti-virus packages didn't reveal
anything.  I ran the SYSINFO utility in Norton Utilities (v6.01) to test
CPU and drive performance, only to find that the measured CPU performance
index (10.2) was a quarter of its original value (40-50).  The indices 
are relative to the IBM XT performance of 1.0.  My two HDDs behaved
normally. 

The RAM check at start up seems ok, although slower than it used to be. 
In fact all my software, including DOS games, works fine, just
frustratingly slow.  I have also looked under the hood for loose
connections and charred chips, but to no avail.  Is there anyone out
there who may be able to help me?  Has a motherboard component snuffed
it?

Re: Motherboard gone wrong

#12143

Author: Sonia Richards
Date: Tue, 06 Jun 1995 00:00

12 lines
1060 bytes

dana@sydney.DIALix.oz.au (Sonia Richards) writes:

>Hi,

>I have a PC with a 386DX40 Motherboard, 8Mb RAM and the 3C87-40 co-pro. 
>Recently I noticed the computer's performance had dropped considerably
(blah blah, much tearing of hair etc)

Thanx to those who responded; perhaps I should have stated that the turbo 
switch was the first thing to be checked.... ;)
It turned out the cache was disabled in my BIOS settings..possib. dodgy 
battery.

Re: Motherboard gone wrong

#12145

Author: Christopher Behler
Date: Tue, 06 Jun 1995 00:00

21 lines
1462 bytes

In <3qruib$o1o$1@sydney.DIALix.oz.au> dana@sydney.DIALix.oz.au (Sonia
Richards) writes: 
>
>Hi,
>
>I have a PC with a 386DX40 Motherboard, 8Mb RAM and the 3C87-40
co-pro. 
>Recently I noticed the computer's performance had dropped considerably
snip
>In fact all my software, including DOS games, works fine, just
>frustratingly slow.  I have also looked under the hood for loose
>connections and charred chips, but to no avail.  Is there anyone out
>there who may be able to help me?  Has a motherboard component snuffed
>it?
>
Has the unit gone off turbo-mode??? Check the switch setting, look for
loose or absent connection, motherboard may have just had a jumper on
the turbo pins...and its off or defective/dirty.   Otherwise I'd say a
BIOS setting had been changed (or the battery is going bad and the BIOS
settings are going away), resulting in an incorrect clock divide (or
something along those lines.  Good luck  CB

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