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Article #20733

Re: <<<<<<<PC CLOCK PROBLEMS>>>>> help!

#20733
From: bostwr
Date: Fri, 28 Feb 1997 00:00
41 lines
2379 bytes
In article <331361B1.6D7@WAGA.net>, blseatz@WAGA.net wrote:
>Check interrupts. Microsoft Diagnostics (MSD) helps. Check: Mouse on
>COM1,Modem on COM2. Where is your Joystick?? Probably also on COM1.
>First Modem was probably on COM2 or COM4. When second Modem installed it
>ate up COM1, probably trying to use COM3.  (rem:COM1&COM3 share
>interrupt, as does COM2 and COM4). Where is the clock? Q: have you
>checked the battery? Does it die after long periods of computer disuse?
>Battery may not be holding charge. Frequent use? Battery may hold charge
>with frequent use.
>
>Good luck.

I have been having a problem with my PC hardware clock stopping whenever the 
PC is turned off for the past couple of months.  FINALLY FIGURED IT OUT on my 
system, maybe this will help others.

I have 3 parallel devices on my system (Pentium 166 Clone motherboard with 
award bios.)

HP Laserjet 5L, QuickCam, and a parallel Zip Drive.

The Quickcam and HP Laserjet will not work on the same parallel port, this is 
a known problem.  I purchased a second parallel port card set up as LPT2 and 
hooked them up that way.  Worked fine.

When i got the Zip drive, I ended up purchasing a parallel port switch.  The 
quickcam and printer are never used at the same time, so I hooked it up as 
follows.

LPT1---->Parallel Port A/B Switch--->HP Laser on A, Quickcam on B
LPT2---->Zip Drive

When the Parallel Port A/B switch is in the "A" position, the hardware clock 
freezes.  When it is in the "B" position, all is well.  Problem solved!

Cause?  Cheap A/B switch?  Probably......Not sure...

Hope this helps those few folks I've seen with the same problem!

Steve
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From: bostwr@tiac.net (bostwr)
Subject: Re: <<<<<<<PC CLOCK PROBLEMS>>>>> help!
Date: 1997/02/28
Message-ID: <5f76o7$scd@news-central.tiac.net>
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References: <01bc20ff$6f456760$482d30ce@telcel.telcel.net.ve> <331361B1.6D7@WAGA.net>
Keyword: clock problems
Organization: The Internet Access Company, Inc.
Newsgroups: comp.sys.ibm.pc.hardware,demon.ip.support.pc,alt.sys.pc-clone