Asus A8V Deluxe Won't Start

[Brian Hutcheson]

I am on my second Asus A8V motherboard now. The first board was replaced by
the dealer, as after a week or so, it decided it wasn't going to start up
easily. The only way to keep the board going was to put it into standby
mode after closing Windows. One night after reinstalling XP, the computer
was shut down, and the next day, it would not start at all. When you hit
the power switch, the fan would turn a little bit, and then stop. To try
and determine the problem, I disconnected everything from the motherboard
except for the power supply, power switch, ram, and video card. The
motherboard was laid down flat, and it started up right away, however there
was no video signal. The power supply was good, as I put the old
motherboard back in the machine, and it worked fine. Took the board back to
the dealer, and they ran tests on it. Turns out, that the motherboard
killed my CPU, along with 2 of there CPU's.

The dealer gave me a new board and CPU in exchange. I installed this board,
and it ran fine for 2 days. After that, it started to display the same
symptoms. Again, if the computer is shut down, and you go to hit the power
switch, the fan will spin a little bit, and then stop. Eventually after
fiddleing with the power switch, you can get the machine started. I am
wondering if the power supply is not strong enough, or if maybe the BIOS
needs updating.

Specs.

ASUS A8V Deluxe mainboard
AMD 3200 CPU (939 pin)
300 watt power supply
512 mb ram
ASUS AGP video card
Version 1008 Bios
A DSL modem and mouse are running off the usb ports.

Any ideas????

 

[Chris Catt]

Hi, almost definitely it is the PSU, 300 watts isn't enough, plus if it's
low quality then your 12 volt supply will be low. Suggest you invest in
400-500 watt one that is known to be good such as a Antac or a Enermax. I've
been using a Q-Tec 650watt which has given me issues what so ever....
ChrisC

 

[Paul]

I am on my second Asus A8V motherboard now. The first board was replaced by
the dealer, as after a week or so, it decided it wasn't going to start up
easily. The only way to keep the board going was to put it into standby
mode after closing Windows. One night after reinstalling XP, the computer
was shut down, and the next day, it would not start at all. When you hit
the power switch, the fan would turn a little bit, and then stop. To try
and determine the problem, I disconnected everything from the motherboard
except for the power supply, power switch, ram, and video card. The
motherboard was laid down flat, and it started up right away, however there
was no video signal. The power supply was good, as I put the old
motherboard back in the machine, and it worked fine. Took the board back to
the dealer, and they ran tests on it. Turns out, that the motherboard
killed my CPU, along with 2 of there CPU's.

The dealer gave me a new board and CPU in exchange. I installed this board,
and it ran fine for 2 days. After that, it started to display the same
symptoms. Again, if the computer is shut down, and you go to hit the power
switch, the fan will spin a little bit, and then stop. Eventually after
fiddleing with the power switch, you can get the machine started. I am
wondering if the power supply is not strong enough, or if maybe the BIOS
needs updating.

Specs.

ASUS A8V Deluxe mainboard
AMD 3200 CPU (939 pin)
300 watt power supply
512 mb ram
ASUS AGP video card
Version 1008 Bios
A DSL modem and mouse are running off the usb ports.

Any ideas????

Have you checked the voltages listed in the Hardware
Monitor in the BIOS ? The +3.3V, +5V, and +12V should
be regulated by your power supply, to within 5% of those
values.

The power rating of the supply is a single number (300W),
and your hardware consumes less than that in total. What
is important is the balance between outputs. If a motherboard
uses the 2x2 +12V plug, then the power supply should have
a rating of 12V@15A printed on the label on the side of the
supply. That handles say (67W/12V*(1/0.9))=6.2A for the
processor vcore circuit, plus 0.5A per idling disk drive,
some for a CD drive if media is present, 1 amp for fans,
and sometimes 1 amp for a video card. The 15 amps of
capacity gives some room for margin and growth.

About the only thing I can suggest, is something happened
to the onboard regulation of your motherboard, due to the
power it was being fed. I would try a name brand power
supply that has a bit more +12V to offer. Generally a bit
more than a 300W rating will give you more +12V, but
checking the amp rating on the label is the way to be
sure.

For example, you can see virtually all these Antec
Truepower supplies meet basic requirements for +12V.
(On some cheaper brands, you cannot trust what is
written on the label.)

VOLTAGE +5V +12V +3.3V -5V -12V +5VSB
TRUE330 30A 17A 28A 0.5A 1.0A 2.0A
TRUE380 35A 18A 28A 0.5A 1.0A 2.0A
TRUE430 36A 20A 28A 0.5A 1.0A 2.0A
TRUE480 38A 22A 30A 1.5A 1.0A 2.0A
TRUE550 40A 24A 32A 0.5A 1.0A 2.0A

Paul

 

[Highlandish]

I am on my second Asus A8V motherboard now. The first board was
replaced by the dealer, as after a week or so, it decided it wasn't
going to start up easily. The only way to keep the board going was
to put it into standby mode after closing Windows. One night after
reinstalling XP, the computer was shut down, and the next day, it
would not start at all. When you hit the power switch, the fan would
turn a little bit, and then stop. To try and determine the problem,
I disconnected everything from the motherboard except for the power
supply, power switch, ram, and video card. The motherboard was laid
down flat, and it started up right away, however there was no video
signal. The power supply was good, as I put the old motherboard back
in the machine, and it worked fine. Took the board back to the
dealer, and they ran tests on it. Turns out, that the motherboard
killed my CPU, along with 2 of there CPU's.
The dealer gave me a new board and CPU in exchange. I installed this
board, and it ran fine for 2 days. After that, it started to display
the same symptoms. Again, if the computer is shut down, and you go
to hit the power switch, the fan will spin a little bit, and then
stop. Eventually after fiddleing with the power switch, you can get
the machine started. I am wondering if the power supply is not
strong enough, or if maybe the BIOS needs updating.

Specs.

ASUS A8V Deluxe mainboard
AMD 3200 CPU (939 pin)
300 watt power supply
512 mb ram
ASUS AGP video card
Version 1008 Bios
A DSL modem and mouse are running off the usb ports.

Any ideas????

I'm thinking power supply, the manual states you should also use the 12 volt
connector as well as the 3 volt.

 

[Art C.]

I said this a hundred times or more and I'll say it again! Has so called
system builders that we all claim to be, we will buy the latest and greatest
Mobo's, CPU's, Video Card's, System Memory and 4 or 5 pretty LED Fan's. The
first and most important component in a custom build is a "High Quality Name
Brand Power Supply" this man will explain it best >>>>
http://www.tomshardware.com/howto/20050228/index.html ....

Good Luck,
Art C.

 

[Acedrew]

Enable the Post Reporter in BIOS and switch on your speakers, then check for
"SYSTEM FAILED CPU TEST" being reported (by Post Reporter).

These boards are famous for it.