Asus support says their A7N8X-X board is
incompatible with mobile AMD XP-M processors
period. I have returned the mobile XP-M 2400+
35 watt processor for a regular XP 2600+
From threads on PCBuild and also in the Anandtech.com
guides, it seems that 45 watt mobile XP-M processors
should or do work with the A7N8X-X.
Maybe this is impossible with the 35 watt mobile XP-M
processor line.
Michael Eisenstadt
----- Original Message -----
From: "Michael Eisenstadt" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, October 15, 2004 3:25 PM
Subject: Re: [PCBUILD] RAM slot question on an Asus A7N8X-X board
> First of all, thank you all for your helpful suggestions.
>
> The reason the Enermax case power supply turned
> itself off after 4 seconds was because it didnt detect
> a processor fan.
>
> At this point, having installed an Alpha PAL 8045 heatsink
> and fan, the power supply & fan are functioning.
>
> I have an Asus A7N8X-X board, AMD Athlon mobile
> XP-M 2400+ processor & heatsink/fan and a
> Kingston 512M stick of RAM.
>
> When powered up, the board's green LED lights up.
> But with a known functioning video card and monitor
> and keyboard, the monitor does NOT turn on and
> the 3 keyboard LEDs only flash once and turn off.
>
> As suggested, I removed the battery and cleared
> the CMOS.
>
> The 3 components, board, RAM and CPU were all
> just bought from Newegg.com
>
> Any suggestions about what to do now?
>
> Again, thanks in advance for your help.
>
> Michael Eisenstadt
>
> ----- Original Message -----
> From: "John Sproule" <[log in to unmask]>
> Sent: Saturday, October 09, 2004 7:14 AM
> Subject: Re: [PCBUILD] RAM slot question on an Asus A7N8X-X board
>
>
> > I suspect that this has to do with the fact that some chipsets for the
> > Athlon XP, such as the Nforce2 400 Ultra, support dual channel memory.
> When
> > one of these chipsets is used, the two slots closer together are part of
> one
> > 64 bit bank and the slot set sligthly apart is on another 64 bit bank.
If
> > you are using two matched DIMMS you put one of these memory modules in
> each
> > of these seperate banks to get the 128 bit bandwidth.
> >
> > The A7N8X-X uses the non-ultra version of the Nforce2 400 chipset, which
> > doesn't support dual channel, but I'm sure it is easier for the
> manufacturer
> > to still uses the same general motherboard layout for this motherboard
as
> it
> > uses on the dual channel versions.
> >
> > Unless the motherboard manual identifies some reason to fill the slots
in
> a
> > certain order, as you add more modules, you should be able to use them
in
> > any constellation....
> >
> > John Sproule
>
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