Re: Dead Motherboar??

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Wise words!!
I am a bit like a dog and his bone - I dont want to let go and let this
beat me. I was looking at a slightly better motherboard the A7n8X and CPU to
match as it would let me use all my existing cards etc.
Don't suppose you could offer an opinion as to if I am continuing to wade
through mud?

"Anna" wrote:


"woof!" <woof@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:8FDBC253-3FEE-4D8F-92E8-8659A3D0466A@xxxxxxxxxxxxxxxx
Please Help??
I have an A7v8X ASUS motherboard. Whilst waiting for a new hard drive
to
arrive to replace the previously failed one (even though it was only
2
weeks
old) I changed the CPU fan (and heatsink) for a quieter one. When I
plugged i
the new one the computer powered up but wouldn't boot. Fans were
turning,
could just about make out a sound or too from the hard drive (not
sure)
but
the monitor was lifeless apart from the standby light.
Tested the PSU voltages and got the following:-
Purple 5.28V
Green 5.28V dropping to 0.08V on power up
Grey >2.4V
Orange rising to 3.98V
Red rising to 5.2V
Yellow rising to 12V

Does this sound like a faulty motherboard?

Can anyone help pinpoint the problem- all help gratefully received -
thanks!!


"woof!" <woof@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:E1D28DE9-6145-4E27-B8A3-AB7E66CC4930@xxxxxxxxxxxxxxxx
Thanks
i shall take a good look at this tonight.
Let you know more when I have got my head around it
if it makes any difference the power supply (which was bought just 4 weeks
ago from maplin) is a ATX-500TD "X-Power"

36A on +3.3V and on +5V
20A on +12V
1A on -5V and -12V
2A on +5Vsb

thanks again



"woof!" <woof@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:0A93A9A8-E3B6-46DE-A652-62F67C43B237@xxxxxxxxxxxxxxxx
Had chance to have another look. Had a very close inspection of the
motherboard and see nothing untoward. looked at the CPU again everything
looks as it should. Re-tested the voltages and got the following:-
Purple: 5.16V
Grey:0.00 rising to 4.96V when power on
Red: 0.02 rising to 5.14V when power on
Orange: 0.00 rising to 3.36V when power on
light Grey moving from 0.00 to -4.9V when power on
Green 5.16 dropping to 0.04V when power turned on
Blue: 0.00 dropping to -11.8V when power turned on

This all looks to agree with guidance. Admittedly slightly less than I
measured last night but that may well be due to a stressful day!?!!

Thinking of ordering new CPU and motherboard and working off that.
Disconnected and reconnected graphics just to see if that made any
difference
and it didn't.

Anyone got ay more ideas? all appreciated, especiallu help so far -
thanks!


woof:
It's really hard, if not impossible, to determine what is the cause of your
problem without replacing each major component on a one-by-one basis. It
might be the PSU, or something went awry when you replaced the CPU fan &
heatsink. Or it could be the motherboard itself. There's really no
definitive way of telling by the end-user without the replacement of
components as I've indicated.

Anyway...

You indicate the problem arose when you installed your new HDD to replace
the "failed" one. I take it there's little doubt in your mind that the
*previous* problem you were experiencing was due to a defective HDD, and has
*nothing* to do with your present problem, right?

So after installing the new HDD you booted with your XP installation CD to
install the OS, that's when the problem arose. When you say the system
"wouldn't boot ", you mean it wouldn't boot to the XP installation CD,
right? You never were able to get as far as installing the OS, right? I
assume you don't have another HDD with a functioning OS on it, do you?

Anyway...

I know I don't have to tell you that you're dealing with a pretty old
motherboard, do I? That ASUS board *was* a fine MB in its day, but
truth-to-tell its day has kind of come & gone. If the system is working and
meets your day-to-day needs with that MB, fine. But since you've indicated
you're thinking of a new motherboard & processor, is there any chance you
could *really* upgrade your system with a new more up-to-day MB & processor,
etc. (At least you have a new HDD, right?). If you could (financially) swing
to a new system, I really think that's the way to go at this point.
Anna



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