Mobile XP2500 Barton on a new A7N8X-E Deluxe

[The Old Man]

Hi all,

I have just installed a Mobile XP2500 Barton on a new A7N8X-E Deluxe.
I have two questions on it's configuration being the first mobile processor
I've set up:

1. Upon boot it shows an Mobile Athlon 800Mhz. In Windows XP Pro SP1A it
displays as an Athlon 798Mhz Processor. I have checked the BIOS, and it set
it up as 133FSBx14 which I work out as 1862Mhz which I guess is right for
the CPU so I don;t understand why its coming up as 800Mhz in the Boot screen
and in Windows My Computer.

2. Secondly, the voltage for this CPU as I understand it is supposed to be
1.45v, but the Asus A7N8X-E Deluxe has awarded it 1.575v. have checked in
the BIOS to lower it manually to 1.45v but that volatge isn't displayed, the
lowest available is 1.575v.

Can someone please offer some advice on how to get the CPU to configure
correctly?
I want to see it running at its default speed before trying to overclock it.
Many thanks.

Graham.

 

[Paul]

Hi all,

I have just installed a Mobile XP2500 Barton on a new A7N8X-E Deluxe.
I have two questions on it's configuration being the first mobile processor
I've set up:

1. Upon boot it shows an Mobile Athlon 800Mhz. In Windows XP Pro SP1A it
displays as an Athlon 798Mhz Processor. I have checked the BIOS, and it set
it up as 133FSBx14 which I work out as 1862Mhz which I guess is right for
the CPU so I don;t understand why its coming up as 800Mhz in the Boot screen
and in Windows My Computer.

2. Secondly, the voltage for this CPU as I understand it is supposed to be
1.45v, but the Asus A7N8X-E Deluxe has awarded it 1.575v. have checked in
the BIOS to lower it manually to 1.45v but that volatge isn't displayed, the
lowest available is 1.575v.

Can someone please offer some advice on how to get the CPU to configure
correctly?
I want to see it running at its default speed before trying to overclock it.
Many thanks.

Graham.

I see a comment in this post:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&[email protected]&rnum=3

It says:

"I'm basically wondering whether it's possible to force the XP-M
to use its correct multiplier (eg: 16x) rather than automatically
revert to 133x6 because of the unsupported ''Powernow" feature."

Looking on Nforcershq.com, it seems only SIS and VIA chipsets are
able to support changing the multiplier. One suggestion is, it is
a BIOS issue, as a DFI Nforce2 board is claimed to be able to make
the multiplier change.

This web site has some info on the issue, and a tool.

http://www.cpuheat.wz.cz/html/CPUMSR_main.htm
http://www.cpuheat.wz.cz/html/Tweaks.htm
http://www.cpuheat.wz.cz/html/AXP_multiplier_FAQ/AXP_Multiplier_FAQ.htm

I'm afraid you'll have to keep looking. Prior to looking around,
I thought this hack was a slam-dunk, but apparently not yet for
everyone. AMD's Powernow software should only work on mobile
chipsets, and it should ignore desktop chips, and that is why
people are looking to this CPUMSR program, to make changes to
their settings. In a way, you are in the same mess as Mobile P4's,
in that no matter what speed Mobile P4 you buy, it starts up
at 12x100, and then you overclock the hell out of the FSB, to
make a processor out of it. A multiplier of 6 on the Mobile
Athlon makes that approach... difficult.

I wish I could use the search engine over here. Maybe some
of the ideas in this thread will help - it's "bridge paintin' time"

http://forums.amdmb.com/showthread.php?threadid=254737&perpage=15&pagenumber=5

This stuff looks very experimental. Which, I guess, is the
whole idea. Keep us posted if you get anywhere, as I'm sure a
few people with A7N8X boards are interested.

HTH,
Paul

 

[The Old Man]

I see a comment in this post:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&[email protected]&rnum=3

It says:

"I'm basically wondering whether it's possible to force the XP-M
to use its correct multiplier (eg: 16x) rather than automatically
revert to 133x6 because of the unsupported ''Powernow" feature."

Looking on Nforcershq.com, it seems only SIS and VIA chipsets are
able to support changing the multiplier. One suggestion is, it is
a BIOS issue, as a DFI Nforce2 board is claimed to be able to make
the multiplier change.

This web site has some info on the issue, and a tool.

http://www.cpuheat.wz.cz/html/CPUMSR_main.htm
http://www.cpuheat.wz.cz/html/Tweaks.htm
http://www.cpuheat.wz.cz/html/AXP_multiplier_FAQ/AXP_Multiplier_FAQ.htm

I'm afraid you'll have to keep looking. Prior to looking around,
I thought this hack was a slam-dunk, but apparently not yet for
everyone. AMD's Powernow software should only work on mobile
chipsets, and it should ignore desktop chips, and that is why
people are looking to this CPUMSR program, to make changes to
their settings. In a way, you are in the same mess as Mobile P4's,
in that no matter what speed Mobile P4 you buy, it starts up
at 12x100, and then you overclock the hell out of the FSB, to
make a processor out of it. A multiplier of 6 on the Mobile
Athlon makes that approach... difficult.

I wish I could use the search engine over here. Maybe some
of the ideas in this thread will help - it's "bridge paintin' time"

http://forums.amdmb.com/showthread.php?threadid=254737&perpage=15&pagenumber=5

This stuff looks very experimental. Which, I guess, is the
whole idea. Keep us posted if you get anywhere, as I'm sure a
few people with A7N8X boards are interested.

HTH,
Paul

Hi Paul,

I've had some luck following a support call. It seems that the Asus A7N8X-E
Deluxe can't detect the correct multiplier as you mentioned. I changed it to
166x11 and the BIOS now shows "Unknown CPU Type 1833Mhz" which is the
correct speed. Apparently this is all in order and the CPU is now running at
normal desktop XP2500 speed.

Thank you very much for the links above.

Regards,
Graham.

 

[Paul]

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&[email protected]&rnum=3

Hi Paul,

I've had some luck following a support call. It seems that the Asus A7N8X-E
Deluxe can't detect the correct multiplier as you mentioned. I changed it to
166x11 and the BIOS now shows "Unknown CPU Type 1833Mhz" which is the
correct speed. Apparently this is all in order and the CPU is now running at
normal desktop XP2500 speed.

Thank you very much for the links above.

Regards,
Graham.

So, what range of multipliers do you get in the BIOS. Just the
low ones ? I mean, this sounds better than the results I dug
up in those web pages. Is this a BIOS version issue ?

Paul

 

[Doug Ramage]

Hi Paul,

I've had some luck following a support call. It seems that the Asus A7N8X-E
Deluxe can't detect the correct multiplier as you mentioned. I changed it to
166x11 and the BIOS now shows "Unknown CPU Type 1833Mhz" which is the
correct speed. Apparently this is all in order and the CPU is now running at
normal desktop XP2500 speed.

Thank you very much for the links above.

Regards,
Graham.

If your cpu/mobo/RAM can do it, a setting of 9 x 200FSB (with your RAM in
sync ) should give you better performance, even though it is a slight
*underclock*. You may have to raise the Vcore a little.

 

[The Old Man]

So, what range of multipliers do you get in the BIOS. Just the
low ones ? I mean, this sounds better than the results I dug
up in those web pages. Is this a BIOS version issue ?

Paul

Hi Paul,
I have the latest BIOS v1010 installed now.
Multipliers available are from x6.5 to x14.

I have found the system boots at 200x10=2Ghz @1.6v fine.
If I change it to 200x10.5=2100Mhz, the system won't pass the BIOS Post.
This is on 1.6v and on 1.7v.

Regards,
Graham.

 

[The Old Man]

it running

If your cpu/mobo/RAM can do it, a setting of 9 x 200FSB (with your RAM in
sync ) should give you better performance, even though it is a slight
*underclock*. You may have to raise the Vcore a little.

Hi Doug,
I have Crucial DDR400 ram so I tried the 200FSB option.
166x11=1.83Ghz at 1.575v and 200x10=2Ghz at 1.6v seem fine.

However, if I go for 200x10.5 it won't boot past the BIOS Post screen.
I tried 1.7v to giver her a bit more but no joy.
Graham.

 

[Andrew J]

Hi Doug,
I have Crucial DDR400 ram so I tried the 200FSB option.
166x11=1.83Ghz at 1.575v and 200x10=2Ghz at 1.6v seem fine.

However, if I go for 200x10.5 it won't boot past the BIOS Post screen.
I tried 1.7v to giver her a bit more but no joy.
Graham.

Bartons hate 10.5. I'm running two 2500+ Mobiles. One is 197 FSB x 12.
The other 197 FSB X 12.5. That's with $15 HSF that have over 30+CFM
air flow.

 

[The Old Man]

Bartons hate 10.5. I'm running two 2500+ Mobiles. One is 197 FSB x 12.
The other 197 FSB X 12.5. That's with $15 HSF that have over 30+CFM
air flow.

Hi Andrew, what voltage are you giving them?
Also, did they fail to pass the BIOS Post at 10.5 so you tried 11 and they
worked?

Regards,
Graham.

 

[The Old Man]

RAM

Hi Andrew, what voltage are you giving them?
Also, did they fail to pass the BIOS Post at 10.5 so you tried 11 and they
worked?

Regards,
Graham.

Well Andrew, after a few minutes from reading your last, I guess your right
about the fact that they don't like 10.5x200. I tried [email protected]
and its running like a dream! I'll try a bit higher afterwards and post back
here.

 

[The Old Man]

Well Andrew, after a few minutes from reading your last, I guess your right
about the fact that they don't like 10.5x200. I tried [email protected]
and its running like a dream! I'll try a bit higher afterwards and post back
here.

Well, I pushed it on and it went up to 2.4Ghz so I'm really happy now!
FSB/Multiplier results - Sucessful unless stated:

[email protected] =1.83Ghz
[email protected] =2.0Ghz
[email protected] =2.1Ghz BIOS POST FAIL
[email protected] =2.1Ghz BIOS POST FAIL
[email protected] =2.2Ghz
[email protected] =2.3Ghz
[email protected] = 2.4Ghz ran ok but prefered 1.775v
[email protected]= 2500Mhz WinXP loaded but rebooted in 3DM2001SE

Average temp 50C in Asus Probe and BIOS.

Graham.

 

[Andrew J]

Well, I pushed it on and it went up to 2.4Ghz so I'm really happy now!
FSB/Multiplier results - Sucessful unless stated:

[email protected] =1.83Ghz
[email protected] =2.0Ghz
[email protected] =2.1Ghz BIOS POST FAIL
[email protected] =2.1Ghz BIOS POST FAIL
[email protected] =2.2Ghz
[email protected] =2.3Ghz
[email protected] = 2.4Ghz ran ok but prefered 1.775v
[email protected]= 2500Mhz WinXP loaded but rebooted in 3DM2001SE

Average temp 50C in Asus Probe and BIOS.

Graham.

Neither of mine are above 1.7v. Your temps are good but if you can
drop that a little it will run cooler. I raised my RAM and AGP
voltages slightly which seems to help if you get a lockup after a day
or two. These run 24/7 at 100% CPU usage fighting cancer.

 

[The Old Man]

Neither of mine are above 1.7v. Your temps are good but if you can
drop that a little it will run cooler. I raised my RAM and AGP
voltages slightly which seems to help if you get a lockup after a day
or two. These run 24/7 at 100% CPU usage fighting cancer.

I found 2.4Ghz would sometimes close the application. Running at
[email protected] seems fine with no problems and it averages 46C. I wouldn't
know how much extra to give the ram etc.