Asus P4C800 Deluxe, where is the battery?

  • Thread starter Thread starter Fogar
  • Start date Start date
F

Fogar

Hello,
on the Asus P4C800 Deluxe motherboard I have to replace the onld
battery with a new battery but I don't succeed to see its location.
Where is it precisely?
Thanks

bye Fogar
 
Fogar said:
Hello,
on the Asus P4C800 Deluxe motherboard I have to replace the onld
battery with a new battery but I don't succeed to see its location.
Where is it precisely?
Thanks
Click to expand...
If you are looking at the board, flat on the table, with the external
connectors to the rear, then it is on the very front right corner of the
board. I'd suspect if you have this in a case, then it is being obscured
by the drives, which often tend to cover this part of the board. The board
cannot be that old, it is very suprising to have to replace the battery
this quickly.

Best Wishes
 
board. I'd suspect if you have this in a case, then it is being obscured
by the drives, which often tend to cover this part of the board. The board
cannot be that old, it is very suprising to have to replace the battery
this quickly.
Click to expand...


Dear friend I have thought was the battery because when I turn on my
PC, my PC doesn't load the BIOS and it is blocked on the black screen.
Then my BIOS have gone in default and now I have some problems with
it.
In your opinion I will have another problem?
 
Dear friend I have thought was the battery because when I turn on my
PC, my PC doesn't load the BIOS and it is blocked on the black screen.
Then my BIOS have gone in default and now I have some problems with
it.
In your opinion I will have another problem?
Click to expand...

Have you been clearing the CMOS via the CLRTC jumper ? Make
sure the jumper is in the correct position. The jumper should
be on pins 1-2, which is the left most position for the
jumper.

Also check that the reset switch for the computer is not jammed.
You do not need to have the reset switch connected, and you
could disconnect the reset switch and see if the computer starts
without that switch connected.

HTH,
Paul
 
Have you been clearing the CMOS via the CLRTC jumper ? Make
sure the jumper is in the correct position. The jumper should
be on pins 1-2, which is the left most position for the
jumper.
Click to expand...

Paul I don't know what you mean. I'm sorry but I am inexperienced.
What is CMOS via the CLRTC jumper, please?
I have just replaced the battery but the problem is the same.
If I don't use the PC for many hours, when I turn on it, it jams
immediately.
It doesn't run at all. I turn off my PC many times and then it seems
turn on regularly but then it ask me to put in default the BIOS.
Why do I have this problem?
Thanks again
 
Paul I don't know what you mean. I'm sorry but I am inexperienced.
What is CMOS via the CLRTC jumper, please?
I have just replaced the battery but the problem is the same.
If I don't use the PC for many hours, when I turn on it, it jams
immediately.
It doesn't run at all. I turn off my PC many times and then it seems
turn on regularly but then it ask me to put in default the BIOS.
Why do I have this problem?
Thanks again
Click to expand...

There is a section in the manual that reads like this:

Clear RTC RAM (CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system
setup parameters by erasing the CMOS RTC RAM data. The RAM
data in CMOS, that include system setup information such as system
passwords, is powered by the onboard button cell battery.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the
cap on pins 2-3 for about 5~10 seconds, then move the cap back
to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS
setup to re-enter data.
Except when clearing the RTC RAM, never remove the cap on CLRTC
jumper default position. Removing the cap will cause system boot
failure!

The CLRTC jumper is right next to the green LED on the motherboard.
It is used to clear the BIOS settings and return them to their
default values. When using the jumper, the computer must be unplugged,
as there can be damage if the jumper is used while the green LED is
glowing. The damage can cause the computer to forget the BIOS
settings when the computer is turned off via the switch on the
back of the computer. The symptoms could be similar to a bad
CMOS battery. The jumper should be in this position for normal
operation.

1 2 3
X<-->X X CLRTC

Another possibility, is something is shorting to the bottom of
the motherboard, like an extra brass standoff. But if that was
the case, you would have had symptoms many months ago.

So, the question is, have you been using the CLRTC jumper ?
If you haven't touched this jumper, then perhaps there is
some other kind of failure on the motherboard.

As a work-around, you might consider putting the computer
to sleep (called Suspend To RAM mode or S3). That requires
Power : Suspend_Mode[Auto] in the BIOS, and it also requires
that the ACPI HAL (hardware abstraction layer) was used when
Windows was installed. When the computer sleeps, the fans
stop, the disks stop, but the RAM is still powered and your
current computing session is stored in the RAM as long as
the computer gets power from the wall outlet. Pressing the
power button on the computer will awaken the computer again.
By using S3 Sleep, you avoid having to totally shut down
the system, and then won't have the startup problem.

Otherwise, you may need to get warranty service (RMA) as long
as there is some time left on the 3 year warranty. Contact
Asus in your country, for details on what information they
need to process a warranty request.

HTH,
Paul
 
Dear Paul, thanks for your advice.
I have just telephoned the dealer and he has told me that my problem
is the voltage transformer. I don't know if he is right but when I
will have resolved my problem I will post again.
thanks



Paul I don't know what you mean. I'm sorry but I am inexperienced.
What is CMOS via the CLRTC jumper, please?
I have just replaced the battery but the problem is the same.
If I don't use the PC for many hours, when I turn on it, it jams
immediately.
It doesn't run at all. I turn off my PC many times and then it seems
turn on regularly but then it ask me to put in default the BIOS.
Why do I have this problem?
Thanks again
Click to expand...

There is a section in the manual that reads like this:

Clear RTC RAM (CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system
setup parameters by erasing the CMOS RTC RAM data. The RAM
data in CMOS, that include system setup information such as system
passwords, is powered by the onboard button cell battery.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the
cap on pins 2-3 for about 5~10 seconds, then move the cap back
to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS
setup to re-enter data.
Except when clearing the RTC RAM, never remove the cap on CLRTC
jumper default position. Removing the cap will cause system boot
failure!

The CLRTC jumper is right next to the green LED on the motherboard.
It is used to clear the BIOS settings and return them to their
default values. When using the jumper, the computer must be unplugged,
as there can be damage if the jumper is used while the green LED is
glowing. The damage can cause the computer to forget the BIOS
settings when the computer is turned off via the switch on the
back of the computer. The symptoms could be similar to a bad
CMOS battery. The jumper should be in this position for normal
operation.

1 2 3
X<-->X X CLRTC

Another possibility, is something is shorting to the bottom of
the motherboard, like an extra brass standoff. But if that was
the case, you would have had symptoms many months ago.

So, the question is, have you been using the CLRTC jumper ?
If you haven't touched this jumper, then perhaps there is
some other kind of failure on the motherboard.

As a work-around, you might consider putting the computer
to sleep (called Suspend To RAM mode or S3). That requires
Power : Suspend_Mode[Auto] in the BIOS, and it also requires
that the ACPI HAL (hardware abstraction layer) was used when
Windows was installed. When the computer sleeps, the fans
stop, the disks stop, but the RAM is still powered and your
current computing session is stored in the RAM as long as
the computer gets power from the wall outlet. Pressing the
power button on the computer will awaken the computer again.
By using S3 Sleep, you avoid having to totally shut down
the system, and then won't have the startup problem.

Otherwise, you may need to get warranty service (RMA) as long
as there is some time left on the 3 year warranty. Contact
Asus in your country, for details on what information they
need to process a warranty request.

HTH,
Paul
Click to expand...
 
Dear Paul, thanks for your advice.
I have just telephoned the dealer and he has told me that my problem
is the voltage transformer. I don't know if he is right but when I
will have resolved my problem I will post again.
thanks
Click to expand...
I was going to write another post, and suggest the power supply as
a possible source of your problem. But, I couldn't see a
way that a failing power supply would match your symptoms.
Because a dual silicon diode is used to steer the current
flow, there shouldn't be any way for a failing supply to
cause the BIOS to forget its settings.

I hope the dealer is skilled in these matters :-)

Paul
 
hello,
my problem was the Asus P4C800 Deluxe motherboard, my dealer has just
replaced it and now my PC works fine.
bye bye
 
Back
Top