GA-8I91P Duo (Pro) - Geiger counter noise on startup and no display??

I have replaced almost everything on my desktop computer apart from the case
and the power supply to try and find what the problem is and still getting
the exact same symptoms from the new components. It sounds obvious that I
should replace the power supply perhaps or even the case which has a few
little electrical components in it for front panel fan speed selector and
the usual switches for power etc. I have ordered these but I'm wondering if
anyone can help with the following symptoms I am getting.

When I turn on the computer, I get a Geiger counter type of noise from the
speaker which is erratic. Sometimes it is a continuous stream of clicks and
sometimes it's a few clicks then a pause then more clicks and so on. The
pause changes all the time so it doesn't sound like an error code as such.
It sounds like a fundamental error with something in the system.
If I unplug my IDE HDD and CD Drive, sometimes it will get past the POST and
display the booting sequence on my monitor where I can then get into BIOS
but after a reset, it goes back to the Geiger counter type of noise and
displays nothing on screen. Sometimes, plugging the CD Drive in again will
let it past the POST and into BIOS and sometimes it doesn't. There's just no
pattern to it?

I have replaced the Mobo, CPU, Memory & Graphics card to the following spec:
P4 3.4G 2 Meg L2 Cache
2 GIG of (Crucial) DDR2 PC5300 (In x2 Single Gig Modules)
Sapphire Radeon X800 XL 256M

The only difference here to what I had before was that I used to have 1 Gig
of DDR PC2700 and a P4 3.4 with 1 Meg L2 Cache but I get the same symptoms
with either. My keyboard is via USB and is functional if it gets past the
POST. I haven't got a mouse plugged in either so that's eliminated.

Does anyone know what this erratic Geiger counter type noise indicates?
Could it be a power supply problem? It's a Chieftec Model: HPC-340-201 with
a 20 pin main power connector so four pins on the Mobo are unused and
covered accordingly, which has worked ok in the past.

And another subject completely...
If I get it running again with this Mobo, I will be switching soon to a
single SATA drive as boot device, 2 IDE HD Drives as data drives and a
single DVD/CD Combo Drive. Can anyone recommend any BIOS settings to get
that little lot working as the manual is pretty vague and only briefly tells
you about the different options but not how to set them up for different
configurations.

"Andy" wrote in message
...

Snip

When I turn on the computer, I get a Geiger counter type of noise from the
speaker which is erratic. Sometimes it is a continuous stream of clicks
and
sometimes it's a few clicks then a pause then more clicks and so on. The
pause changes all the time so it doesn't sound like an error code as such.
It sounds like a fundamental error with something in the system.

Snip

Try changing the keyboard???

I have tried that with a PS2 keyboard and even unplugged it completely but
the same symptoms persist.

"Ian James"
wrote
in message ...

"Andy" wrote in message
...

Snip

When I turn on the computer, I get a Geiger counter type of noise from
the
speaker which is erratic. Sometimes it is a continuous stream of clicks
and
sometimes it's a few clicks then a pause then more clicks and so on. The
pause changes all the time so it doesn't sound like an error code as
such.
It sounds like a fundamental error with something in the system.

Snip

Try changing the keyboard???

To follow up... it was the power supply after all... never in a million
years would I have thought that.
Go on.. laugh, I replaced everything in my system lol
And now I have 2 machines although 1 has no power supply yet.

"Andy" wrote in message
...
I have replaced almost everything on my desktop computer apart from the
case
and the power supply to try and find what the problem is and still getting
the exact same symptoms from the new components. It sounds obvious that I
should replace the power supply perhaps or even the case which has a few
little electrical components in it for front panel fan speed selector and
the usual switches for power etc. I have ordered these but I'm wondering
if
anyone can help with the following symptoms I am getting.

When I turn on the computer, I get a Geiger counter type of noise from the
speaker which is erratic. Sometimes it is a continuous stream of clicks
and
sometimes it's a few clicks then a pause then more clicks and so on. The
pause changes all the time so it doesn't sound like an error code as such.
It sounds like a fundamental error with something in the system.
If I unplug my IDE HDD and CD Drive, sometimes it will get past the POST
and
display the booting sequence on my monitor where I can then get into BIOS
but after a reset, it goes back to the Geiger counter type of noise and
displays nothing on screen. Sometimes, plugging the CD Drive in again will
let it past the POST and into BIOS and sometimes it doesn't. There's just
no
pattern to it?

I have replaced the Mobo, CPU, Memory & Graphics card to the following
spec:
P4 3.4G 2 Meg L2 Cache
2 GIG of (Crucial) DDR2 PC5300 (In x2 Single Gig Modules)
Sapphire Radeon X800 XL 256M

The only difference here to what I had before was that I used to have 1
Gig
of DDR PC2700 and a P4 3.4 with 1 Meg L2 Cache but I get the same symptoms
with either. My keyboard is via USB and is functional if it gets past the
POST. I haven't got a mouse plugged in either so that's eliminated.

Does anyone know what this erratic Geiger counter type noise indicates?
Could it be a power supply problem? It's a Chieftec Model: HPC-340-201
with
a 20 pin main power connector so four pins on the Mobo are unused and
covered accordingly, which has worked ok in the past.

And another subject completely...
If I get it running again with this Mobo, I will be switching soon to a
single SATA drive as boot device, 2 IDE HD Drives as data drives and a
single DVD/CD Combo Drive. Can anyone recommend any BIOS settings to get
that little lot working as the manual is pretty vague and only briefly
tells
you about the different options but not how to set them up for different
configurations.