A7V400-MX problem

[Guest]

Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Hello,

I recently bought a bundle/"upgrade system" from one of the local PC
shops. It consists of a case, an ASUS A7V400-MX, sempron 2500 CPU and
256 mb Ram (PC 3200 I think it was..). I built the system with, HD,
DVD etc., and it just didn't want to boot. Thinking it could be the HD
or the DVD that caused the problem I disconnected these.

Starting up with only RAM and CPU, and what happens is as follows:
The system powers up and comes to the POST screen, the error message
'CMOS checksum error' is displayed. It's a brand new MB, and I assume
the battery should be ok.
I can get into BIOS and check CPU temperature etc. which was 50
degrees C. The computer then shuts down.. I've tried a different RAM,
and change the settings on the DIP switches, but I guess using the
default should be alright enough. And, the CPU speed is shown as 1100
for some reason.

Any ideas would be highly appreciated. I suspect the motherboard is
faulty, but that may not be the case.

Cheers,

Dan

 

[Chachi]

Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Dan Nilsen wrote:
> Hello,
>
> I recently bought a bundle/"upgrade system" from one of the local PC
> shops. It consists of a case, an ASUS A7V400-MX, sempron 2500 CPU and
> 256 mb Ram (PC 3200 I think it was..). I built the system with, HD,
> DVD etc., and it just didn't want to boot. Thinking it could be the HD
> or the DVD that caused the problem I disconnected these.
>
> Starting up with only RAM and CPU, and what happens is as follows:
> The system powers up and comes to the POST screen, the error message
> 'CMOS checksum error' is displayed. It's a brand new MB, and I assume
> the battery should be ok.
> I can get into BIOS and check CPU temperature etc. which was 50
> degrees C. The computer then shuts down.. I've tried a different RAM,
> and change the settings on the DIP switches, but I guess using the
> default should be alright enough. And, the CPU speed is shown as 1100
> for some reason.
>
> Any ideas would be highly appreciated. I suspect the motherboard is
> faulty, but that may not be the case.
>
> Cheers,
>
> Dan

I have an identical problem with mine. First off, unplug your computer
from the wall socket, then look in your manual for the cmos reset/erase
jumper and follow the instructions. Your cmos checksum error should be
gone now. As for the cpu showing 1100, you have it on the default fsb
(100mhz). You have to set the dip switch (it's directly above the floppy
connector on the mb). You may have a misprinted manual, so the correct
settings are (on is up, but you should see it marked on the switch) : 1
- off, 2-5 on. You will then have your fsb at 166mhz which will give you
1826mhz.

Hope it helps.

 

[Guest]

Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Chachi <nospam@this.addy> wrote in message news:<pRCYd.40047$JH1.1785805@news20.bellglobal.com>...

> I have an identical problem with mine. First off, unplug your computer
> from the wall socket, then look in your manual for the cmos reset/erase
> jumper and follow the instructions. Your cmos checksum error should be
> gone now. As for the cpu showing 1100, you have it on the default fsb
> (100mhz). You have to set the dip switch (it's directly above the floppy
> connector on the mb). You may have a misprinted manual, so the correct
> settings are (on is up, but you should see it marked on the switch) : 1
> - off, 2-5 on. You will then have your fsb at 166mhz which will give you
> 1826mhz.
>
> Hope it helps.

Thanks for the tip. Tried it out, but no luck. Still get the CMOS
error message, and the frequency is still reported to 1100 Mhz. There
is a pattern however, when the CPU temperature reaches 50-51 C it
shuts down. I've tried to disable the CPU overheating protection, but
it doesn't make any difference whatsoever.

Any ideas anyone? I'm powering up the thing with a minimum, one ram
chip, and the CPU..

Dan

 

[Chachi]

Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Dan Nilsen wrote:
>
> Thanks for the tip. Tried it out, but no luck. Still get the CMOS
> error message, and the frequency is still reported to 1100 Mhz. There
> is a pattern however, when the CPU temperature reaches 50-51 C it
> shuts down. I've tried to disable the CPU overheating protection, but
> it doesn't make any difference whatsoever.
>
> Any ideas anyone? I'm powering up the thing with a minimum, one ram
> chip, and the CPU..
>
> Dan

Something is wrong there. If you indeed set the dip switches for the fsb
and it didn't change the speed, and your cmos error was not cleared with
the reset jumper, I would rma the board. If the dip was set wrong, it
either defaults back to 100mhz or doesn't post. Recheck that the
switches were set properly, if they were, you probably have a bad board.
It happens... Sorry to give you the bad news...