"Browser Joe" <i.dont.TakeThisOut@think.so> wrote in message
news:hS6rd.17206$Ad3.1016878@news20.bellglobal.com...
> Ok, I have an xp 2000+ with an asus a7400-mx mb, 512 pc 2100 ram, and gf 4
> 440 vid card.
>
> I found procedures on how to "unlock" the potential of this cpu by setting
> it to mobile. One thing I am concerned about is if I set it to mobile, my
> multiplier will go to 24, and the procedures for setting the multplier via
> bridges doesn't explain as to if it's setting a maximum multi, or a set
> one. I want to play around with it, but if I'm gonna have it locked at
> say, 13.5 (if that's the bridge combo I choose), I don't want to keep
> pulling out the cpu to change bridges yadda yadda...
>
> Anyone shed some info?
> BTW, I know the mb is lack luster, but I got the combo (cpu+ram+mb) for a
> really good price, and it's not really in my budget to upgrade now.
>
> Also, fsb o/c isn't really an option as I get bsod when I change the
> default 133 to 166 (no pci lock perhaps?). Although it hits 2.083ghz 
I have an XP2000+ T'bred B (standard 12.5x133, 1.6V). I currently have it
running at 10.5x200, 1.8V, Prime95 stable on my NF7-S board. I have run the
CPU at 11x200, 1.93V but not extensively tested with Prime95. When I was
using PC2100 RAM, the highest FSB I could get was 166MHz as long as I
increased the volts to the RAM to 2.6-2.7V.
The recurring theme above is:-
To get a decent overclock then you will have to increase voltages.
If you can increase the FSB a MHz at a time you may be able to increase the
FSB by about 10-20MHz without a CPU voltage increase if your board has no
CPU voltage adjustment in BIOS.
The BIOS in my old VIA board (before I swapped to the NF7-S) did not have
enough Vcore adjustment for the overclock I wanted so I had to look for
another method to increase it. I used the "Interactive Pin-Mod Guide..." on
<a style='text-decoration: underline;' href="http://www.ocinside.de/index_e.html" target="_blank">http://www.ocinside.de/index_e.html</a> (you may have to click on the "Workshop"
icon on the left side of the screen to find it) to change the CPU voltage.
If you don't mind cutting your voltage bridges on you CPU then you can
select any voltage setting desired. If you don't want to cut the bridges (I
didn't) then the choice of voltages are limited.
In the case of my CPU, the standard voltage was 1.6V so I checked the guide
for the setting at that voltage and found it used two pin-mod bridges. From
there I checked the rest of the settings above that and found that 1.65V
used the same bridges as 1.6V plus an extra. Continuing from there I found
a few others.
As an experiment I decided to try the 1.65V setting and reasoned that since
the 1.65V setting used the same two as the 1.6V setting plus an extra I
would only add the extra and would check the result. So with a piece of
very thin wire bent in a "U" shape placed in the appropriate CPU socket
holes and the CPU and HSF reinstalled I powered up the system.
It worked.
With the 1.65V Pin-Mod plus the 0.1V BIOS extra I could run the CPU at
13.5x152 on my old VIA board Prime95 stable. With the FSB at 152 the PC2100
RAM did not need any extra voltage.
Experiment with your system. As usual, your mileage may vary.
Dave<!-- ~MESSAGE_AFTER~ -->
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