Ian put fingers to keyboard and typed...
> I switch on computer (dual boot), Windows XP starts to load then
> freezes after logo screen and before start menu screen, Windows 98
> freezes just before desktop appears. Sometimes I get to the desktop
> before the freeze happens. Have occasionally lost display and twice
> got random colours all over the screen (looks as though the monitor
> has been puked on).
>
> Only occurs when starting from cold and after a few attempts finally
> manages to boot. I can then use the computer normally.
>
> The problem is getting progressively worse. Any quick diagnoses.
As mentioned elsewhere possibly a power supply problem.
I had a very similar problem with a 2 year old Power supply, it turned
out that there was too much load on the ±5V lines causing the contacts to
overheat - this resulted in visible charring (take out the motherboard
power plug and look for discoloured contacts) and resulting voltage
fluctuations due to the increased resistance.
I was getting about about +4.4 and -5.6V! I usualy sorted this out by
unplugging the power connector and rocking it side to side to help clean
the contacts, this did the trick, but it was only temporary and the
problem re-occured.
I eventually ended up buying a new Power supply (same power rating) and
haven't had it since.
--
Shabs.
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