HELP: P5P800 suddenly switches OFF by itself :((

[\ Razzo\]

I've just bought some new parts for my computer.

Motherboard Asus P5P800 (rev 1.01, BIOS Rev 1006).
CPU: Intel P4 530 Socket 775 3.0 Ghz
RAM: 2 x 400 MHz 256 MB DDR from VDATA

I've got a problem. It started while installing (from scratch) Windows XP
with 2 Vdata DDR (each of 256 MB) mounted on the blue sockets. The PC was
shutting down by itself, and to switch it on again I had to unplug and
plug again the AC cable from the socket. There's no way to install Windows
with 2 DDR plugged in the sockets.

I managed to install Windows XP by removing one DDR and leaving the other
one there.

But after the installation still there are some problems: with one DDR the
PC switches off by itself after a few minutes under heavy load. With two
DDR the PC switches off very often (even without heavy load).

It's not a temperature problem: I've got the original Intel fan, and I used
some silver paste instead of the original paste from Intel. I tried also to
disable the Q-Fan function, but the problem it's still there.

I checked those Vdata DDR on another computer: it's an Athlon 64 3.0+ (FSB
800 MHz) with another Asus MB, and they are perfectly working.

I tried also to put new DDR (also 400 MHz) on my P5P800. I tried with one
256 MB from Veritech, and with one 512 MB from Vdata, but the problem it's
still there: after a few minutes under heavy load the computer switches off
(as usual I need to unplug and plug back the AC connector to switch it on).

My power supply unit it's a 400W Dual Fan Gold PFC from Qtec:
http://www.qtec.info/products/product.htm?artnr=13493
It's only 3 or 4 months old, and I've been using it with my former
motherboard (Asus A7V333 with Athlon XP 2.6+) until some days ago.

Is it a problem caused by the mainboard? Is there a way to solve it, or
should I return the MB to the seller?

Thanks a lot.

 

[Michael W. Ryder]

I've just bought some new parts for my computer.

Motherboard Asus P5P800 (rev 1.01, BIOS Rev 1006).
CPU: Intel P4 530 Socket 775 3.0 Ghz
RAM: 2 x 400 MHz 256 MB DDR from VDATA

I've got a problem. It started while installing (from scratch) Windows XP
with 2 Vdata DDR (each of 256 MB) mounted on the blue sockets. The PC was
shutting down by itself, and to switch it on again I had to unplug and
plug again the AC cable from the socket. There's no way to install Windows
with 2 DDR plugged in the sockets.

I managed to install Windows XP by removing one DDR and leaving the other
one there.

But after the installation still there are some problems: with one DDR the
PC switches off by itself after a few minutes under heavy load. With two
DDR the PC switches off very often (even without heavy load).

It's not a temperature problem: I've got the original Intel fan, and I used
some silver paste instead of the original paste from Intel. I tried also to
disable the Q-Fan function, but the problem it's still there.

How are you checking the CPU temperatures? I had a really hard time
getting the Intel heat sink installed properly and was getting similar
problems until I got it seated properly. You might also want to look at
the airflow in the case. My first case with this board had the power
supply right above the CPU and it was overheating the power supply. One
power supply couldn't handle the extra heat and I got one with better
cooling. My new case has a couple of inches clearance between the CPU
and PS and it runs about 10 degrees cooler.

 

[ET69]

I've just bought some new parts for my computer.

Motherboard Asus P5P800 (rev 1.01, BIOS Rev 1006).
CPU: Intel P4 530 Socket 775 3.0 Ghz
RAM: 2 x 400 MHz 256 MB DDR from VDATA

I've got a problem. It started while installing (from scratch) Windows XP
with 2 Vdata DDR (each of 256 MB) mounted on the blue sockets. The PC was
shutting down by itself, and to switch it on again I had to unplug and
plug again the AC cable from the socket. There's no way to install Windows
with 2 DDR plugged in the sockets.

I managed to install Windows XP by removing one DDR and leaving the other
one there.

But after the installation still there are some problems: with one DDR the
PC switches off by itself after a few minutes under heavy load. With two
DDR the PC switches off very often (even without heavy load).

It's not a temperature problem: I've got the original Intel fan, and I used
some silver paste instead of the original paste from Intel. I tried also to
disable the Q-Fan function, but the problem it's still there.

I checked those Vdata DDR on another computer: it's an Athlon 64 3.0+ (FSB
800 MHz) with another Asus MB, and they are perfectly working.

I tried also to put new DDR (also 400 MHz) on my P5P800. I tried with one
256 MB from Veritech, and with one 512 MB from Vdata, but the problem it's
still there: after a few minutes under heavy load the computer switches off
(as usual I need to unplug and plug back the AC connector to switch it on).

My power supply unit it's a 400W Dual Fan Gold PFC from Qtec:
http://www.qtec.info/products/product.htm?artnr=13493
It's only 3 or 4 months old, and I've been using it with my former
motherboard (Asus A7V333 with Athlon XP 2.6+) until some days ago.

Is it a problem caused by the mainboard? Is there a way to solve it, or
should I return the MB to the seller?

Thanks a lot.

I was able to work around the problem by Underclocking the ram. My ram
works at 2-2-2-5 but with this baord I have to use it at 2-3-3-5 on
any bios version availiable from ASUS.

I figured out this is a compatability problem with the ASUS board as
I've finally decided after so many years of usign ASUS boards that my
other home PC's needed an uppgrade but I was not going to go with ASUS
this time. IE: One of the comp's I built was on a Soltek board
(SL-865Pro-775) this board worked perfectly fine with the Same Brand
and Model of RAM where as the ASUS P5P800 did not. I also placed the
RAM in a 3rd computer which used the Albatron PX915P-AGPe which also
worked flawlessly. Also tried the same RAM/model in an MSI 915GM-FR
which also worked perfectly fine. ASUS claims its ether:

1.) CMOS needs to be Cleared.

This doesn't fix the problem and only clears the CMOS.

2.) Update the BIOS.

This also does nothing.

3.) Change to other RAM/Brand.

This only worked when I put extreamly cheep and slow ram in the board
($87 for 2x512/1Gig)

4.) Change the Video card.

This didn't fix anything (Tried: Geforce 3, Geforce 4, Geforce
FX5900U, Ati 9800 Pro, and a Geforce 6800GT).

5.) Change another power supply.

This also did nothing (Tried: CompUSA Generic Tru Power 600W, Enermax
550W, MadDog SurePower 600W, and a Antech TruePower 550W)


6.) Reinstall OS

Did this around 9 times and changed nothing.


7.) Scan for virus

No Viruses found (Mcafee, Nortons, Microtrend, and AVG) which was
obvious since this was all brand new hardware with a Bland New Windows
XP Pro Disc.


It seems to take me about 2 weeks to get replies from ASUS on tech
support and when I call them (14 times in 2 months so far), they tell
me they will call me back but never do.

I've been using asus for many years (about 12 years) but I think I
will no longer be bothering with there baords anymore. To possibly
have to deal with there tech support in the future again... I would
rather not. I've never had to use ASUS Tech support untill this yerar
with 2 of there boards and both times ASUS had no idea how to solve
the problems... With grooling pain and long hours of testing I was
able to come up with a few work arounds for each problem which
required me to underclock the ram... Whats funny about this is that
this board had recieved great reviews and even more so for its
overclocking (which I don't do anyway) but who would have thought I
would have to underclock to get it to work properly. :-(

Anyway, I hope this helps you as it did for me and I also helped 3
other people who had the same problem on this board with various types
of ram/models.

 

[ET69]

I was able to work around the problem by Underclocking the ram. My ram
works at 2-2-2-5 but with this baord I have to use it at 2-3-3-5 on
any bios version availiable from ASUS.

I figured out this is a compatability problem with the ASUS board as
I've finally decided after so many years of usign ASUS boards that my
other home PC's needed an uppgrade but I was not going to go with ASUS
this time. IE: One of the comp's I built was on a Soltek board
(SL-865Pro-775) this board worked perfectly fine with the Same Brand
and Model of RAM where as the ASUS P5P800 did not. I also placed the
RAM in a 3rd computer which used the Albatron PX915P-AGPe which also
worked flawlessly. Also tried the same RAM/model in an MSI 915GM-FR
which also worked perfectly fine. ASUS claims its ether:

1.) CMOS needs to be Cleared.

This doesn't fix the problem and only clears the CMOS.

2.) Update the BIOS.

This also does nothing.

3.) Change to other RAM/Brand.

This only worked when I put extreamly cheep and slow ram in the board
($87 for 2x512/1Gig)

4.) Change the Video card.

This didn't fix anything (Tried: Geforce 3, Geforce 4, Geforce
FX5900U, Ati 9800 Pro, and a Geforce 6800GT).

5.) Change another power supply.

This also did nothing (Tried: CompUSA Generic Tru Power 600W, Enermax
550W, MadDog SurePower 600W, and a Antech TruePower 550W)


6.) Reinstall OS

Did this around 9 times and changed nothing.


7.) Scan for virus

No Viruses found (Mcafee, Nortons, Microtrend, and AVG) which was
obvious since this was all brand new hardware with a Bland New Windows
XP Pro Disc.


It seems to take me about 2 weeks to get replies from ASUS on tech
support and when I call them (14 times in 2 months so far), they tell
me they will call me back but never do.

I've been using asus for many years (about 12 years) but I think I
will no longer be bothering with there baords anymore. To possibly
have to deal with there tech support in the future again... I would
rather not. I've never had to use ASUS Tech support untill this yerar
with 2 of there boards and both times ASUS had no idea how to solve
the problems... With grooling pain and long hours of testing I was
able to come up with a few work arounds for each problem which
required me to underclock the ram... Whats funny about this is that
this board had recieved great reviews and even more so for its
overclocking (which I don't do anyway) but who would have thought I
would have to underclock to get it to work properly. :-(

Anyway, I hope this helps you as it did for me and I also helped 3
other people who had the same problem on this board with various types
of ram/models.

Almost forgot... you might want to shed your CPU fan if you have the
cash to kill. I normally and always go with stock FAN/Heatsink but
this is the first time a fan has ever drivin me insane. I picked up a
Thermaltake Silent 775 CPU Cooler and its one hell of a great unit. I
also use Artic Silver 5 and together they brought the Temp way down on
the CPU not to mention my system is nearly silent now and doesnt keep
me awake at night anymore ;-)

 

[Paul]

I've just bought some new parts for my computer.

Motherboard Asus P5P800 (rev 1.01, BIOS Rev 1006).
CPU: Intel P4 530 Socket 775 3.0 Ghz
RAM: 2 x 400 MHz 256 MB DDR from VDATA

I've got a problem. It started while installing (from scratch) Windows XP
with 2 Vdata DDR (each of 256 MB) mounted on the blue sockets. The PC was
shutting down by itself, and to switch it on again I had to unplug and
plug again the AC cable from the socket. There's no way to install Windows
with 2 DDR plugged in the sockets.

I managed to install Windows XP by removing one DDR and leaving the other
one there.

But after the installation still there are some problems: with one DDR the
PC switches off by itself after a few minutes under heavy load. With two
DDR the PC switches off very often (even without heavy load).

It's not a temperature problem: I've got the original Intel fan, and I used
some silver paste instead of the original paste from Intel. I tried also to
disable the Q-Fan function, but the problem it's still there.

I checked those Vdata DDR on another computer: it's an Athlon 64 3.0+ (FSB
800 MHz) with another Asus MB, and they are perfectly working.

I tried also to put new DDR (also 400 MHz) on my P5P800. I tried with one
256 MB from Veritech, and with one 512 MB from Vdata, but the problem it's
still there: after a few minutes under heavy load the computer switches off
(as usual I need to unplug and plug back the AC connector to switch it on).

My power supply unit it's a 400W Dual Fan Gold PFC from Qtec:
http://www.qtec.info/products/product.htm?artnr=13493
It's only 3 or 4 months old, and I've been using it with my former
motherboard (Asus A7V333 with Athlon XP 2.6+) until some days ago.

Is it a problem caused by the mainboard? Is there a way to solve it, or
should I return the MB to the seller?

Thanks a lot.

Dump the power supply. Qtec!

http://www.ocfaq.com/forum/printthread.php?t=2152

Paul

 

[\ Razzo\]

How are you checking the CPU temperatures? I had a really hard time

With "Everest Home Edition"...

getting the Intel heat sink installed properly and was getting similar
problems until I got it seated properly. You might also want to look at
the airflow in the case. My first case with this board had the power

The heat sink is properly installed, and the air flow in the case is ok.
The PSU is right above the CPU, but there's a fan (it's part of the PSU)
that takes the hot air from the CPU into the PSU, and there's another fan
that takes the air from the PSU to outside. There's also another fan on the
back on the case that takes the air out.

Anyway yesterday I had a problem... one of those "switch off" has been
deadly for my PSU... when I pushed the button to switch it on, the PC went
on, but some smoke came out from the PSU...

Now I found another PSU, it's not a Qtec, and the label says it's 300W.
It has got just one fan, and actually I see that the air coming out from
the back of the PC is hotter than before.

Anyway now I put back the DDR that caused that problem, and I'm testing
again.

 

[\ Razzo\]

I was able to work around the problem by Underclocking the ram. My ram
works at 2-2-2-5 but with this baord I have to use it at 2-3-3-5 on

There's something that I've got to try...

1.) CMOS needs to be Cleared.

Done. Nothing has changed.

2.) Update the BIOS.

Done. Nothing has changed.

3.) Change to other RAM/Brand.

Done. Nothing has changed.

4.) Change the Video card.

Not done, but the video card it's ok.
And I don't want to buy a new video card...
Well... if Asus give me (for free) a brand new last fashion VGA I'll be
happy

5.) Change another power supply.

I'm trying that...
My PSU has died yesterday evening. Now I've got another one, the label says
300W, and it has got just one fan. For the moment seems to work and the PC
doesn't switch off... but the new PSU it's there only since a few minutes.

6.) Reinstall OS

Done. Nothing has changed.
It was not even possible to install Windows... the PC switches off.

7.) Scan for virus

Of course there's no virus.

 

[\ Razzo\]

300W, and it has got just one fan. For the moment seems to work and the PC
doesn't switch off... but the new PSU it's there only since a few minutes.

I'm almost convinced... I think it was a fault from the Qtec PSU.
Now it's in the seller's shop to be replaced, I hope they'll give me
another model...

 

[\ Razzo\]

Anyway now I put back the DDR that caused that problem, and I'm testing
again.

With the new PSU it seems it's working...

 

[ET69]

With the new PSU it seems it's working...

Hope it stays solid for you... Give it a little longer before you
think its stable though and keep your eyes pealed :O

Anyway, A 300W PSU might not be a god idea with this kind of
hardware... Simply because a 300W PSU is being spread too thin to
power things properly. All the items in your comp now have to share
the power and spread it very thin...

 

[ET69]

There's something that I've got to try...


Done. Nothing has changed.


Done. Nothing has changed.


Done. Nothing has changed.


Not done, but the video card it's ok.
And I don't want to buy a new video card...
Well... if Asus give me (for free) a brand new last fashion VGA I'll be
happy


I'm trying that...
My PSU has died yesterday evening. Now I've got another one, the label says
300W, and it has got just one fan. For the moment seems to work and the PC
doesn't switch off... but the new PSU it's there only since a few minutes.


Done. Nothing has changed.
It was not even possible to install Windows... the PC switches off.


Of course there's no virus.

THat list was a list of things I had emailed asus with saying I had
tried and all they did was copy and past the same thing i told them
and emailed it back to me. But for me the lowering the ram made the
system function without rebooting.

 

[\ Razzo\]

Hope it stays solid for you... Give it a little longer before you

Of course I'll check it for some time

Anyway, A 300W PSU might not be a god idea with this kind of

Yes, I know... but it's the only one I found...
I hope that the seller will replace my "burned" PSU with a new one,
hopefully a better one.

 

[Michael W. Ryder]

With "Everest Home Edition"...

While the temperature readings with Everest agree with Probe the voltage
readings are Way off so ignore them.

The heat sink is properly installed, and the air flow in the case is ok.
The PSU is right above the CPU, but there's a fan (it's part of the PSU)
that takes the hot air from the CPU into the PSU, and there's another fan
that takes the air from the PSU to outside. There's also another fan on the
back on the case that takes the air out.

With my old computer the area around the power supply got much hotter
than the surrounding case and the rear exhaust fan was ineffective
because the heat sink masked it.

 

[ET69]

Of course I'll check it for some time


Yes, I know... but it's the only one I found...
I hope that the seller will replace my "burned" PSU with a new one,
hopefully a better one.

How long ago did you buy it? If you just bought it hopefully they wont
give you a hard time with it... A buddy of mine had a PSU burn out on
him that he bought from Newegg and since it was barely a week of use
they gave him a new one. Faulty PSU's can make it out the factory
door... Sucks, and I'm sure it doesnt give a person a good feeling
when they see the smoke coming out of it. Hope it al works out for you

 

[\ Razzo\]

How long ago did you buy it? If you just bought it hopefully they wont

I bought it not more than 4 or 5 months ago.

when they see the smoke coming out of it. Hope it al works out for you

I hope soo.
They said they've got to sent it back for checking the reason.
If the fault is due to voltage peaks they won't replace it.