Mobile XP Vcore Settings Wrong?

[Coyote]

Check this post and follow the links therein <A HREF="http://forums.anandtech.com/messageview.aspx?catid=28&threadid=1561206&enterthread=y" target="_new">http://forums.anandtech.com/messageview.aspx?catid=28&threadid=1561206&enterthread=y</A>

They claim the vcore settings in BIOS do not actually work for mobiles as they do for desktop cpu's. In other words, if you set BIOS to 1.55vcore, it'll read vcore of 1.55, but the mobile will actaully be getting only 1.40v

Here's the conversion table:


BIOS vCore. / . Actual
Setting for / . vCore of the
DesktopXP . / . XP-Mobile CPU

1.850 <=======> 2.000
1.825 <=======> 1.950
1.800 <=======> 1.900
1.775 <=======> 1.850
1.750 <=======> 1.800
1.725 <=======> 1.750
1.700 <=======> 1.700
1.675 <=======> 1.650
1.650 <=======> 1.600
1.625 <=======> 1.550
1.600 <=======> 1.500
1.575 <=======> 1.450
1.550 <=======> 1.400
1.525 <=======> 1.350
1.500 <=======> 1.300
1.475 <=======> - N/A
1.450 <=======> 1.275
1.425 <=======> 1.250
1.400 <=======> 1.225
1.375 <=======> 1.200
1.350 <=======> 1.175
1.325 <=======> 1.150
1.300 <=======> 1.125
1.275 <=======> 1.100
1.250 <=======> 1.075
1.225 <=======> 1.050
1.200 <=======> 1.025
1.175 <=======> 1.000
1.150 <=======> 0.975
1.125 <=======> 0.950
1.100 <=======> 0.925

Is this old news I somehow missed? Or do you guys think there is something to this?

Thanks,

Mobile XP 2600+ (11X215)
Abit NF7-S v 2.0
Maxtor 60GB ATA 133 7200RPM
512MB Corsair Twinx 3200LL
BBA 9800 Pro
Enermax Noisetaker 420 watts
Win2K sp4<P ID="edit"><FONT SIZE=-1><EM>Edited by Coyote on 04/05/05 05:23 PM.</EM></FONT></P>

 

[Coyote]

LOL, Thanks wusy.

Mobile XP 2600+ (11X215)
Abit NF7-S v 2.0
Maxtor 60GB ATA 133 7200RPM
1 gig Corsair XMS PC3200
eVGA 6800GT
Enermax Noisetaker 420 watts
Win2K sp4

 

[Flinx]

ABIT NF7-S or NF7. Underclocking lets me get down to 1.2V. Scaling up and down on the voltages for Overclocking looks reasonable and correct.

I think it might be the ASUS boards too.

The loving are the daring!

 

[Crashman]

If Asus screwed up, it's Asus's problem. The NF7-S was a better board anyway.

Now, I've seen some documentation about the VID pins being assigned differently for mobile and desktop CPU's, but that shouldn't affect manual settings: Even if the board mis-detects a 1.50v CPU as being, for example, a 1.65v version, setting it at 1.75v is a software setting that doesn't relly on VID pins, so it should work fine.

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