A7V333 won't boot at all (nothings working so far)

  • Thread starter Thread starter Martin Weil
  • Start date Start date
M

Martin Weil

Hi.

My problem is the following (and a wired one, at least for me):

A couple weeks ago I tried to start my computer but nothing happened. No
reaction at all.
That happened 2 or 3 times before that but - in theses cases - the computer
booted after I
pressed the on-switch some more times. No it does not.

Btw: My hardware:

Asus A7V333 Rev 1.02
AMD Athlon XP 1800+
2x 256 Ram
2x Seagate 60 GB IDE
1x Seagate 17 GB SCSI
Floppy
Adaptec 2940U2W PCI
Creative GeForce4 Ti4200 AGP
Network Adapter


Ok, thats what I did so far:

I replaced my cpu with another one ("old" Athlon 1400) from a friend.
NOTHING.
He tried my CPU on his MoBo. NOTHING.

Ok, I considered both MoBo and CPU damaged, so I send it in for repair
(lucky
for me that this was still in warranty).

Now, i wanted to reassure that the rest of the hardware is working properly.

I took my power supply and tried it with my old computer (Asus P2B,
Pentium3).
But: NOTHING. The computer won't give a lifesign.

Ok, now I thought my power supply was broken. So I got a new one.
In the meantime, I received my mainboard with the notice "all functional". A
few
days later, I received a new CPU.

Ok so far I had a broken power supply and a broken CPU. Now both are
replaced.
I also got a new CPU Cooler (Zalman 7000CU-A).

After everthing was installed in my big tower, I pushed the start button and
.....
NOTHING !!!!!

I ripped EVERYTHING unnecessary out of my big tower (agp, drives, fans
(except
CPU fan :-) ), data cable, powerplugs. even the memory modules). NOTHING.

But the green light on my MoBo is on.

Another weired thing happend: As I removed the power plug from my floppy (at
this
time the last drive with power) [also, the power plug had a little bit
contact] the cpu
began to rotate an the floppy made that "floppy sound at boot", you know
like klick-
klick-klick. It did that for some seconds until I switched off the switch
build in in the
power supply (because I was worried something sould be damaged).

Ok, thats how it is up till now.

ANY suggestions? I have no (more) idea's what to do. Now I think, the MoBo
may
be damaged after all. Should I contact Asus directly, because my retailer
won't
replace it?

PLEASE, some suggestions.

Thanks
Martin Weil
 
Martin said:
Another weired thing happend: As I removed the power plug from my
floppy (at this
time the last drive with power) [also, the power plug had a little bit
contact] the cpu
began to rotate an the floppy made that "floppy sound at boot", you
know like klick-
klick-klick.
Click to expand...

Sounds like your actual power switch may well be broken and or shorting
.... try powering it from another case.

regards

@ndrew
 
Sounds like your actual power switch may well be broken and or shorting
... try powering it from another case.

regards

@ndrew
Click to expand...

Thanks. But it's still not working. I tried it with a jumper and after that
with another
case. NOTHING
 
You had a lot of stuff typed out..

How big is the power supply.


Here is what I would do..
Unplug all the power cables except 1 going to say a hard drive. on the main
ATX connector short the green wire with any black wire.. This will cut the
PSU_ON signal to On and the power supply should come on..

If the psu comes on and you hear the hard drive spin up (or even the fans in
the psu come on) then your okay for the psu..

so now you'll want to do anor test..
after connecting the psu cable back
Disconnect all your drives (both from the bus and from the power supply)
You'll want to pull out the SCSI Card too.. and just for the sake of it I
would pull the NIC..
taking out 1 stick of ram wouldnt hurt but It's kinda not needed
That should leave you with Mobo, Ram, Processor, Video Card..

Try to start it.. Does it start.
 
How big is the power supply.

Enermax 353 W
Here is what I would do..
Unplug all the power cables except 1 going to say a hard drive. on the main
ATX connector short the green wire with any black wire.. This will cut the
PSU_ON signal to On and the power supply should come on..

If the psu comes on and you hear the hard drive spin up (or even the fans in
the psu come on) then your okay for the psu..
Click to expand...

It did, so I guess my psu is all right.

so now you'll want to do anor test..
after connecting the psu cable back
Disconnect all your drives (both from the bus and from the power supply)
You'll want to pull out the SCSI Card too.. and just for the sake of it I
would pull the NIC..
taking out 1 stick of ram wouldnt hurt but It's kinda not needed
That should leave you with Mobo, Ram, Processor, Video Card..
Click to expand...

Now, only psu, Mobo (1 stick of ram, then no sticks at all), cpu, agp then
pci card
Try to start it.. Does it start.
Click to expand...
Nope. Nothing at all, except for the green led on the Mobo.
 
so now you'll want to do anor test..
Now, only psu, Mobo (1 stick of ram, then no sticks at all), cpu, agp then
pci card

Nope. Nothing at all, except for the green led on the Mobo.
Click to expand...

cant fully rule the PSU out, but it's probably a good guide, The error codes
on the motherboard SHOULD point you to the problem.

NOTHING at all tells me that it could be the switch. I know this might be
a stretch but instead of using your power switch can you maybee connect your
reset switch across the power connector and give that a try?
Or even try to jump those 2 pins together. The green light is the +5v VSB
and that would normally be no indication that the PSU is good or Bad (just
that it's generating the correct vsb voltage). But cutting it on via the
jumper says the psu is PROBABLY good.

But check the switch first as described above, it's a momentary contact
switch so just touching it for a second or so will be enough.

If that doesnt work then I would put it down to the motherboard..
 
Martin Weil said:
Hi.

My problem is the following (and a wired one, at least for me):

A couple weeks ago I tried to start my computer but nothing happened. No
reaction at all.
That happened 2 or 3 times before that but - in theses cases - the computer
booted after I
pressed the on-switch some more times. No it does not.
Click to expand...

MB shorted to one of the stand-offs.
 
cant fully rule the PSU out, but it's probably a good guide, The error
codes
on the motherboard SHOULD point you to the problem.
Click to expand...

Error codes? There is only one LED, there are no LED's for error codes on
mthis Mobo.
NOTHING at all tells me that it could be the switch. I know this might be
a stretch but instead of using your power switch can you maybee connect your
reset switch across the power connector and give that a try?
Click to expand...

I did. Same as usual.
Or even try to jump those 2 pins together. The green light is the +5v VSB
and that would normally be no indication that the PSU is good or Bad (just
that it's generating the correct vsb voltage). But cutting it on via the
jumper says the psu is PROBABLY good.

But check the switch first as described above, it's a momentary contact
switch so just touching it for a second or so will be enough.

If that doesnt work then I would put it down to the motherboard..
Click to expand...

So do I, but the service center of my MoBo dealer does not have this
opinion. Looks like I really have the problem. I contaced Asus directly,
maybe they are able to offer a solution.
 
So do I, but the service center of my MoBo dealer does not have this
opinion. Looks like I really have the problem. I contaced Asus directly,
maybe they are able to offer a solution.
Click to expand...

Well IF it's not cutting on and you check'd the switch then it just smells
of motherboard to me. That doesnt mean it is (takes a while to really
accept that sometimes electronics might just not fit a pattern).

The main thing that says "mobo" is that this thing SHOULD try to kick on if
even for a short moment.

If you have a DVM (Something to check voltages in the 1-10v dc range) then
you CAN do 1 final check on the psu.

I think that the powergood voltage check is fed back through the power
supply itself these days and it cant cut on UNLESS the board & the Supply
say it's okay. So it's possible that that voltage isnt there (showing a bad
supply).

Also have a look for bulged caps or burnt spots on the motherboard around
the socket area mainly.
 
If you have a DVM (Something to check voltages in the 1-10v dc range) then
you CAN do 1 final check on the psu.

I think that the powergood voltage check is fed back through the power
supply itself these days and it cant cut on UNLESS the board & the Supply
say it's okay. So it's possible that that voltage isnt there (showing a bad
supply).
Click to expand...

Ok, i'll check that and let you know, if I find anything interesting,
Thanks for your help so far
 
Ok, here's the latest news. It looks like they've messed up at ma
MoBo-Dealer. I called this
morning and after some discussion, they found out, that they mixed up some
rma numbers or something. I should send the board in again. HAHA.

Now I have to pay for shipment TO them, From them ("board is all right") and
AGAIN TO them. Anyway, cheaper than a new MoBo.

Thanks for help (especially rstlne)

Martin
 
Martin Weil said:
Ok, here's the latest news. It looks like they've messed up at ma
MoBo-Dealer. I called this
morning and after some discussion, they found out, that they mixed up some
rma numbers or something. I should send the board in again. HAHA.

Now I have to pay for shipment TO them, From them ("board is all right") and
AGAIN TO them. Anyway, cheaper than a new MoBo.

Thanks for help (especially rstlne)

Martin
Click to expand...
When you get the new mobo try the following

Place the mobo on the antistatic mat outside the case and fit the CPU and
Fan.

Put in one piece of memory and a graphics card and plug a pair of headphones
into the audio out socket.

Then, still outside the case, attach attach the PSU and the on/off switch.

Try and Boot up.

If that works, then attach the floppy disk and run checking utilities.

If they are OK, then add all memory, repeat tests.

Then shove it all in the case and repeat.

Finally connect everything else and load the OS if needed.

the_gnome
 
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