Power-On Self Test problem

A

Agzee

Over the last few days my computer developed a problem during the
"Power-On Self Test and would take up to six attempts before the
machine would boot into Windows.

I removed and reseated the RAM and also my video card, checked all
power connectors etc and the problem still remained.

Cleared the CMOS and set "Load Optimized Defaults" in the bios, when
this had no affect I flashed the bios and once again set "Load
Optimized Defaults", still the Power-On Self Test problem remained.

Finally noticed that one of the keys on my Logitech wireless keyboard
was stuck in the depressed position and after spending some time
freeing the key the Power-On Self Test procedure was back to normal
and I could boot into Windows without any further problems.

The funny thing is that the key that was stuck "Pause/Break" I cannot
recall ever using.

What I find strange is that my bios is set to ignore any faults from a
keyboard:-

Halt On
---------
(The category determines whether the computer will stop if an error is
detected during power up).

All, But keyboard
-------------------
The system boot will not stop for a keyboard error; it will stop for
all other errors. (Default value)

All I can assume is that the above setting that I have enabled in the
bios has no relevance to a wireless keyboard!

So if you have a wireless keyboard and you ever encounter a problem
during Power-On Self Test check the keyboard first it could save hours
or days of trouble-shooting!

Cheers - Agzee
 
P

Pennywise

Agzee said:
Over the last few days my computer developed a problem during the
"Power-On Self Test and would take up to six attempts before the
machine would boot into Windows.

I removed and reseated the RAM and also my video card, checked all
power connectors etc and the problem still remained.

Cleared the CMOS and set "Load Optimized Defaults" in the bios, when
this had no affect I flashed the bios and once again set "Load
Optimized Defaults", still the Power-On Self Test problem remained.

Finally noticed that one of the keys on my Logitech wireless keyboard
was stuck in the depressed position and after spending some time
freeing the key the Power-On Self Test procedure was back to normal
and I could boot into Windows without any further problems.

The funny thing is that the key that was stuck "Pause/Break" I cannot
recall ever using.

What I find strange is that my bios is set to ignore any faults from a
keyboard:-

Halt On
---------
(The category determines whether the computer will stop if an error is
detected during power up).

All, But keyboard

It's not an error, it's a feature :)

It works on all PC computers with any keyboard, Press the Pause/Break
key during the POST to stop it, <enter> to continue.

Good way to get your BIOS number, (the one that flashes by to fast to
read on bootup).
 
A

Agzee

It's not an error, it's a feature :)

It works on all PC computers with any keyboard, Press the Pause/Break
key during the POST to stop it, <enter> to continue.

Good way to get your BIOS number, (the one that flashes by to fast to
read on bootup).

Thanks for the info re the Pause/Break key function, as I have never
used it before had no idea what it was for and cannot fathom out how
it had become jammed.

I had just assumed that my wireless keyboard did not comply with
normal keyboard standards and was ignoring the bios 'Halt On' setting.

That is sod's law of all the keys on my keyboard to become jammed is
the one that can pause the Power-On Self Test process! :)

Cheers - Agzee
 

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