Asus A7N266-VM problem, wont boot.

[Tosca]

Asus A7N266-VM problem, wont boot.
I have just purchased a Asus A7N266-VM motherboard. I have assembled it
altogether but it wont boot. I know all the cpu, memory and hard drive are
good because they are taken from another PC.

My problem is, when the pc powers up I get no beeps for a round 10 seconds,
then I get what can only be described as a siren sound( something like a old
English ambulance).

I have read the manual but it mentions nothing about this. I am not happy
with the manual as it is poor. It shows the cmos jumper in the manual but
there is no jumper on the board, you have to short the two points on the
board with something like a paper clip. It has the cpu jumper settings in
the manual show 133 as default, but nearly every site I have searched on
says the manual is wrong and the jumpers should be at the end setting?

Can anyone shed any light on the siren sound?

 

[Ed]

Asus A7N266-VM problem, wont boot.
I have just purchased a Asus A7N266-VM motherboard. I have assembled it
altogether but it wont boot. I know all the cpu, memory and hard drive are
good because they are taken from another PC.

My problem is, when the pc powers up I get no beeps for a round 10 seconds,
then I get what can only be described as a siren sound( something like a old
English ambulance).

I have read the manual but it mentions nothing about this. I am not happy
with the manual as it is poor. It shows the cmos jumper in the manual but
there is no jumper on the board, you have to short the two points on the
board with something like a paper clip. It has the cpu jumper settings in
the manual show 133 as default, but nearly every site I have searched on
says the manual is wrong and the jumpers should be at the end setting?

Can anyone shed any light on the siren sound?

The *only* experience *I* have with the siren was I started getting the
"two tone" siren on an Asus K7M. The PSU I had was just too weak for the
CPU I had in it, a new/more powerful PSU fixed it. While waiting for the
new PSU to come I under clocked the CPU by a few hundred MHz to lower
power consumption and the siren went away and the system ran fine.

Good luck,
Ed

 

[Buford t jnes]

Asus A7N266-VM problem, wont boot.
I have just purchased a Asus A7N266-VM motherboard. I have assembled it
altogether but it wont boot. I know all the cpu, memory and hard drive are
good because they are taken from another PC.

My problem is, when the pc powers up I get no beeps for a round 10 seconds,
then I get what can only be described as a siren sound( something like a old
English ambulance).

I have read the manual but it mentions nothing about this. I am not happy
with the manual as it is poor. It shows the cmos jumper in the manual but
there is no jumper on the board, you have to short the two points on the
board with something like a paper clip. It has the cpu jumper settings in
the manual show 133 as default, but nearly every site I have searched on
says the manual is wrong and the jumpers should be at the end setting?

Can anyone shed any light on the siren sound?

I have the same problem, brand new board, new memory modules, siren sound.
The manual states in the chart on pg 33 "Long beeps in an endless loop"
means "no DRAM installed or detected". I have tried two different DRAM
modules with no success. You can't get to the BIOS settings because the
motherboard doesn't boot that far.

As per the jumpers for memory speed, there is an addendum to the manual that
shows an alternate jumper setting for processor bus and memory speed, BSEL 0
and BSEL1. The default is 133 processor, 133 memory. You can get an
electronic copy of the addendum at the asus web site.

I talked to a person who has used this board and they had no such problems.
Bad boards?
Thanks

 

[None]

When I power up, the fan starts (direct wired to +12 Volts, loud, but
beats killing the CPU for diagnostic purposes) but nothing else
happens.

Reset usually leads to the "wee-woo-wee-woo" siren sound, which is not
mentioned in the book or on the website that I can find.

Rarely the board will post on reset, locking up either mid-post or
during bios setup.

This is common across all possible combos of:

True 380 PS (Athlon XP rated)
A1 ATX-P4-12 400W PS (Athlon XP Rated)
Athlon XP 2100+
Athlon 1000
LARGE Antec Cooler
512M PC2100 DDR
512M PC2700 DDR
Benchtop
Micro tower Case
Mini Tower Case
All 4 combos of CPU/RAM Speed Jumpers per combo

I Just opened a call with ASUS Support.....

 

[None]

Tech Support just told me that the "secret" european siren sound is a
Voltage Failure, either bad/weak PS or a ground issue.

Didn't fix my problem, but at least now we know...

 

[Ed]

I had the 2-tone siren on a Asus K7M, a new bigger PSU fixed it.
Ed

 

[Buford t jnes]

I place a trouble email with ASUS and they told me to return the board for
repair.