Re: Asus A8N-SLI Premium - New Build

On Sat, 01 Apr 2006 18:40:24 GMT, nospam@xxxxxxxxxx (Paul) wrote:

In article <1143913518.939491.19390@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
pjolliffe@xxxxxxxxx wrote:

Hi All,

I've got a few problems with my new build. Components are:

Asus A8N-SLI Premium
Silentmaxx ATX 12V 400 Watt fanless PWS
Asus 256Mb PCI-E EN7800GT Top Silent/2HDTV DDR3 ViVo Graphics Card
2 mb of Crucial DDR PC3200 =B7 CL=3D3 =B7 UNBUFFERED =B7 NON-ECC =B7
DDR400
Silentmaxx ST11-Pro case.

Bascially I can't get a video output from boot. The mother board light
is on as are the case lights and the fans.

Any suggestions?

Thanks=20

Pete

Make sure the ATX12V 2x2 power connector is plugged in next to
the processor. The main 20 pin or 24 pin power connector should
be plugged into the motherboard as well. The video card has a
PCI Express power connector, and the video card needs power through
that connector.

Your new motherboard has a couple of error output methods.
The computer speaker will beep error codes. As well, the
motherboard has "Vocal POST". To listen to the error messages
from that, you plug amplified computer speakers into the
green audio connector on the back of the computer.

If you have checked all the power, and there is still no
video output, strip the computer down a bit. With the
motherboard and a processor installed, you should hear
beeps complaining that no RAM is present. The fact that
the computer can beep, means some BIOS code got
executed and your processor is working. (Always remember
to switch off and unplug, before adding or removing
hardware. Basically, you don't want the green LED on
the motherboard to be lit, while changing out hardware.)

Adding RAM and video card, a step at a time, should change
the symptoms seen via the error output mechanisms. Section
3.3.1 of your user manual, has a list of the Vocal POST
error messages, and you can tell from those, whether the
addition of the next component to the motherboard is
working or not. For example, if you just added one stick
of RAM, if the computer claims the memory test failed,
then the RAM could be bad, whereas if the computer
complained that no video card is present, that means
the RAM test passed. Then you would install the video
card and so on.

I trust you have checked the CPU support page, for any
BIOS dependencies.

http://support.asus.com.tw/cpusupport/cpu_support_right_master.aspx?type=1&name=A8N-SLI%20Premium&SLanguage=en-us&cache=1

There is a review of your power supply here:

http://www.pro-clockers.com/article.php?id=124&page=6

HTH,
Paul

And if all the above does not work (or even if it does.. !) check the
power-supply label for the +12V output capability of your
power-supply. If a single 12V and less than 20 amps, trash-can the
supply. It has insufficent reserve capacity for your system-choices
and is likely to be flaky under intense 3D gaming.

For a modern (24-pin ATX) motherboard, matching it up with an ATX V2.x
power-supply is almost mandatory. The high-end CPUs draw ~ 9amps
peak@ 12V from the power-supply and the 7800GT about 8 amps peak.
Plus the +12v power required to start your CD/DVD drives -- about 2
amps each and 1 amp to spin up each hard-disk. +12 volts is now the
most important supply source in a modern computer. ATX V2.x
power-supplies feature dual +12V outputs, with <at least> 13 amps
per leg. And if you ever want to run SLI, the power supply list on:-

http://www.slizone.com/object/slizone2_build.html

is a good start. Still have to be very careful in choosing from that
list if you are using dual super-high-end SLI (or Crossfire) video
cards

John Lewis



.

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