Failing fans can cause all sorts of problems.
My trusty old linux router/gateway/firewall took upon itself to reboot
spontaneously and frequently. Most un-linux-like behaviour.
Cause was similar - fan blocked with crud and fluff, prolly sucked off the
cat when she decided that power supplies were a useful source of bedtime
Quick blast through with Henry, and it's not rebooted once in the three
months that have passed.
email me at
richard at olifant d-ot co do-t uk
A friend works for a company that rent out AV kit for corporate do's
etc. Hence quite often he finds himself at various functions driving
some bit of AV gear, and running slide shows etc.
One such occation was a big NHS conference where amoung other things
discussed were some of the strange "accidents" thet the A&E people have
to deal with.
Apparently one of the most common causes of penile shaft injury in the
UK is (or was - this was a few years ago now) - the Dustbuster type of
rechargeable mini vacuum cleaners. Apparently some of them have a
rotating fan blade with sharp edges not that far from the nose of the
machine. I will leave the rest to your collective imaginations!
Although I didn't quite have that set of problems I once had very
annoying mouse behaviour.
After a bit of analysis I worked out it was because I used the mouse
right next to the window. On sunny days the light was strong enough
to penetrate the case and confuse the opto sensors. A new mouse with
a darker plastic case fixed it.
I found that once a few years ago with a mouse - it only moved up and
down on sunny days! The solution was to take the lid off it and colour
the inside with a permenent marker pen - put it all back together and it
worked fine after that!
Not the mouse, as it happens with more than one. Not the optical sensors as
double clicks are being activated.
Maybe a faulty mouse port? Try a serial mouse, USB mouse - one different to
A stuck key (or 2) on the keyboard. Have seen this more than once. Alt
stuck on mine, and I caught on when pressing F4 as it tried to close the
program or tab shifted to another one.
Does it only happen when you are working on it, or does it happen when you
aren't touching it? If it happens when you aren't touching it then I'd look
at the mouse port, otherwise the stuck keys. It's always a good idea to
give the keyboard a clean anyway, but if it isn't dirt, just sticky keys
then a good sharp stabbing on the usual offenders may help. Alt -esp if
windows are closing, but also Ctrl, arrow keys, Backspace, tab, shift. Do
you have accessibilty options switched on, which allow keys to control mouse
movements and if one key is stuck may generate the movements etc. Or an
alternative KB if you have one lying about.
If the kb is really bogging a good scrub with with soapy water is all else
fails. Just don't put it up against the radiator to dry out, as a colleague
of hubby's did. Went limp and he ended up with a banana shaped KB.
PS what makes you think its getting stuck in an interrupt service routine?
Thats not easy to diagnose.
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