Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

Computer problem has us stumped
Computer problem has us stumped
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 4th March 2004, 09:26 AM   #1
diyAudio Member
Join Date: Jul 2002
Location: Winona,MN
Default Computer problem has us stumped

Just thought I'd throw this one in front of the knowledgable folks on this forum as it has everyone stumped so far.

Every once in a while the scroll function on my mouse will go crazy and start changing text size, or going back and forward to web pages already visited. Simultaneously, the keyboard will sporadically go into capitals or stop altogether. Sometimes totally illogical screens like properties will come up when I click and just generally weird stuff goes on. If I shut down, it usually stops for a while, sometimes all day.

Things we have tried:

different mouse
USB mouse
different keyboard
re-installing Windows
repairing Windows
uninstalling and reinstalling the drivers for the mouse and keyboard

I have P-cillin anti-virus and it is showing no viruses.

I am wondering if anyone here has ever encountered a problem like this and if anyone has any ideas where the problem lies.

  Reply With Quote
Old 4th March 2004, 09:30 AM   #2
Frank Berry is offline Frank Berry  United States
diyAudio Member
Frank Berry's Avatar
Join Date: Sep 2003
Location: Midland, Michigan
Those symptoms look like a motherboard issue.
Have you checked to make sure all cooling fans are operating?
  Reply With Quote
Old 4th March 2004, 09:48 AM   #3
diyAudio Member
Join Date: Jul 2002
Location: Winona,MN
That makes some sense, Frank.

A couple months ago, the fan crapped out and was replaced. the computer shut down at one point before the fan was replaced.

Thanks, it's still under warranty......

  Reply With Quote
Old 5th March 2004, 02:33 AM   #4
drdokman is offline drdokman  United States
diyAudio Member
Join Date: Feb 2004
Location: Indianapolis
My answer is the motherboard. I had this sort of thing happen years ago. It has to be hardware and logically the MB.
David Dokmanovich
  Reply With Quote
Old 8th March 2004, 05:02 AM   #5
head_spaz is offline head_spaz  United States
diyAudio Member
Join Date: Mar 2004
Location: Arkansas
Default intermittent?

Is this a store bought or a custom system?
I've seen stuff like this many times.
The first thing I always check is to see if there are extra spacers/standoffs under the motherboard. I see this happen quite a bit, especially in upgrades where the new motherboard has less mounting pads than the old board. The standoffs short the traces.
Or... it could be the motherboard itself... the keyboard controller is quite vulnerable to electro static shock.
Good luck.
Writing is good exercize for the texticles!
  Reply With Quote
Old 9th March 2004, 05:54 AM   #6
theChris is offline theChris
diyAudio Member
Join Date: Dec 2001
Location: SIUE, Illinois, USA
ok, well the wheel functions in IE are:
wheel up/down = scroll up/down.
+shift = page forward/back
+ctrl = zoom out/in

i know on some versions of windows the OS will lock the right mouse button, ctrl, alt, or shift keys for odd reasons. if the crtl key becomes locked for some reason, the page will zoom in or out...

i'd search the micosoft knowledge base. it may be some bios issues. try enabling or disabling pnp OS installed in the BIOS. this may or may not work. it fixes/breaks a lot of things in odd situations. to access the BIOS, follow the on screen instructions during the boot up period.

find out if you have any IRQ conflicts. these can do some strange things too!

BTW, all the "illogical" things that happen stem from logical things -- like getting the find menu from pressing "f". the ctrl key is for some reason set, and thus the "f" becomes ctrl+f, which is often a find command!

I don't recall this ever happenin on a 2000/xp box, only 98 and ME.
if only it could be used for good, not evil...
  Reply With Quote
Old 9th March 2004, 06:20 AM   #7
fr0st is offline fr0st
diyAudio Member
Join Date: Dec 2002
Location: Australia
Install the latest motherboard drivers and flash the bios (if possible) to the latest version
Should cure most problems
  Reply With Quote
Old 9th March 2004, 07:08 AM   #8
Jason Hubbard is offline Jason Hubbard  United Kingdom
diyAudio Member
Jason Hubbard's Avatar
Join Date: Apr 2001
Location: Poole, England
Default Computer problem

It is a fan/motherboard interaction issue. Don't know if it is related to current consumption.

I have the same problem on a Dell laptop - the fan kicks in to cool the CPU and whilst it is doing it the mouse behaves unpredictably.

You might cure it by putting say a 1000uf capacitor across the 12v and Ground rails next to the fan, or replace the fan(s) or replace the PSU - at least this way your outlay is low compared to changing out the motherboard.

Worth a try....
  Reply With Quote


Computer problem has us stumpedHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Computer boot up problem...help! ashok Everything Else 27 28th July 2019 02:23 AM
Stumped - Hum / Bias Problem in Marantz 510M iso_510M Solid State 8 29th January 2008 09:35 PM

New To Site? Need Help?

All times are GMT. The time now is 12:02 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio