Computer Booting up Problem

  • Thread starter Thread starter Joel Spencer
  • Start date Start date
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Joel Spencer

Hi all,

I have a problem with booting my PC up when it hasn't been on for a while.
When I press the power button it sounds like the PC is starting as normal
for about 5 seconds but then dies. Pressing it again does nothing, it's only
after holding it down for ages, then quickly pressing it after when it will
load up (and that's after several attempts). I've been told it's not my
power supply as this either works or doesn't and as I can get my PC running
the PSU is not faulty.
Any help plz?

Joel
 
Hi all,

I have a problem with booting my PC up when it hasn't been on for a while.
When I press the power button it sounds like the PC is starting as normal
for about 5 seconds but then dies. Pressing it again does nothing, it's only
after holding it down for ages, then quickly pressing it after when it will
load up (and that's after several attempts). I've been told it's not my
power supply as this either works or doesn't and as I can get my PC running
the PSU is not faulty.
Any help plz?

Joel
Click to expand...

That's not necessarily true, a failing power supply can cause this,
and it is usually the problem. Unfortunately this is commonly a 5VSB
problem, which may test as nearly the correct voltage so the easiest
test would be trying another power supply. Possibly some motherboard
capacitors on the verge of failure would cause this too, but that
"verge" is a finite period in time, it's more likely the power supply.
A power supply with a bad 5VSB rail can still power a system fine once
that system is successfully POSTed, since the 5VSB rail isn't needed
after power-on.

On the other hand if you'd been in the system recently or moved it,
double-check everything.


Dave
 
Hi all,

I have a problem with booting my PC up when it hasn't been on for a while.
When I press the power button it sounds like the PC is starting as normal
for about 5 seconds but then dies. Pressing it again does nothing, it's only
after holding it down for ages, then quickly pressing it after when it will
load up (and that's after several attempts). I've been told it's not my
power supply as this either works or doesn't and as I can get my PC running
the PSU is not faulty.
Any help plz?

Joel
Click to expand...

That's not necessarily true, a failing power supply can cause this,
and it is usually the problem. Unfortunately this is commonly a 5VSB
problem, which may test as nearly the correct voltage so the easiest
test would be trying another power supply. Possibly some motherboard
capacitors on the verge of failure would cause this too, but that
"verge" is a finite period in time, it's more likely the power supply.
A power supply with a bad 5VSB rail can still power a system fine once
that system is successfully POSTed, since the 5VSB rail isn't needed
after power-on.

On the other hand if you'd been in the system recently or moved it,
double-check everything.


Dave
 
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