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Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

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 :)

Thanks in advance.
 
Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

On Tue, 30 Nov 2004 17:47:42 -0500, Browser Joe wrote:

> Ok, I have an xp 2000+ with an asus a7400-mx mb, 512 pc 2100 ram, and gf
> 4 440 vid card.
>
> 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 :)
>
Lot's of work to change it to a mobile, and you shouldn't need to. Since
it runs at 166Mhz FSB I'll assume it's a tbred B core cpu and the default
vcore is probably a lot less than what it would be if it was setup as a
2600+. So, did you raise vcore when you raised the FSB? if not, that's one
reason it would crash on you. The default vcore for a 2083MHz 2600+ is
1.65v. The default on your 2000+ is probably 1.50-1.60v. Not having a PCI
lock is not a problem. You don't need it to run up to aobut 185MHz. The
PC2100 may be a problem though, but if you have it set to BySPD it should
limit the speed to 133MHz. If not, set it manually. So, basically, as
long as you set everything up right, you shouldn't need to even mess with
the CPU to get a good overclock out of it. A quick look at you MB
(A7V400-MX?) specs shows it even supports a 200MHz FSB, so 166 should be a
snap.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
http://mysite.verizon.net/res0exft/cpu.htm
 
Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

Excellent info, thanks. Now my problem is, I can't modify the vcore via
bios (greyed out), so I guess I have to bridge mod the vcore?
I just really wish I could either find a modded bios, or have money for
another board...

Wes Newell wrote:
> On Tue, 30 Nov 2004 17:47:42 -0500, Browser Joe wrote:
>
>
>>Ok, I have an xp 2000+ with an asus a7400-mx mb, 512 pc 2100 ram, and gf
>>4 440 vid card.
>>
>>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 :)
>>
>
> Lot's of work to change it to a mobile, and you shouldn't need to. Since
> it runs at 166Mhz FSB I'll assume it's a tbred B core cpu and the default
> vcore is probably a lot less than what it would be if it was setup as a
> 2600+. So, did you raise vcore when you raised the FSB? if not, that's one
> reason it would crash on you. The default vcore for a 2083MHz 2600+ is
> 1.65v. The default on your 2000+ is probably 1.50-1.60v. Not having a PCI
> lock is not a problem. You don't need it to run up to aobut 185MHz. The
> PC2100 may be a problem though, but if you have it set to BySPD it should
> limit the speed to 133MHz. If not, set it manually. So, basically, as
> long as you set everything up right, you shouldn't need to even mess with
> the CPU to get a good overclock out of it. A quick look at you MB
> (A7V400-MX?) specs shows it even supports a 200MHz FSB, so 166 should be a
> snap.
>
 
Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

On Wed, 01 Dec 2004 06:01:26 -0500, Browser Joe wrote:

> Excellent info, thanks. Now my problem is, I can't modify the vcore via
> bios (greyed out), so I guess I have to bridge mod the vcore?

That's one way, but I used one wire of the pin mod to up mine from 1.60v
to 1.80v on a board without vcore control. You can select any vcore you
want this way. Use your imagination ad you can have the full range if you
want. But for up to 2200MHz, you probably don't need more than about 1.70v.

http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod.html

> I just really wish I could either find a modded bios, or have money for
> another board...
>
If there's no connections to the control pins a modded bios won't help.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
http://mysite.verizon.net/res0exft/cpu.htm
 
Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

Much thanks again... Will try it and post back with results! :)

Wes Newell wrote:
> On Wed, 01 Dec 2004 06:01:26 -0500, Browser Joe wrote:
>
>
>>Excellent info, thanks. Now my problem is, I can't modify the vcore via
>>bios (greyed out), so I guess I have to bridge mod the vcore?
>
>
> That's one way, but I used one wire of the pin mod to up mine from 1.60v
> to 1.80v on a board without vcore control. You can select any vcore you
> want this way. Use your imagination ad you can have the full range if you
> want. But for up to 2200MHz, you probably don't need more than about 1.70v.
>
> http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod.html
>
>
>>I just really wish I could either find a modded bios, or have money for
>>another board...
>>
>
> If there's no connections to the control pins a modded bios won't help.
>
 
Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

"Browser Joe" <i.dont@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
http://www.ocinside.de/index_e.html (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
 
Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

<Snip very useful info>

Well, I got it stable in prime95 for the hour I ran it using the pin
mod, GREAT!!

Now, my concern is heat... I have a Thermaltake slim volcano 10+ (all
copper heatsink) and my temps were getting to 63C!! That is when I
stopped it. I don't understand it, the idle runs the same as stock speed
(49-50C) but the load goes way above stock (63 vs. 56C). I have arctic
silver 3 paste on it, and with this apparently good hsf (by reviews) I
still get these bloody hot temps!
 
Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

On Wed, 01 Dec 2004 10:47:52 -0500, Browser Joe wrote:

> <Snip very useful info>
>
> Well, I got it stable in prime95 for the hour I ran it using the pin
> mod, GREAT!!
>
> Now, my concern is heat... I have a Thermaltake slim volcano 10+ (all
> copper heatsink) and my temps were getting to 63C!! That is when I
> stopped it. I don't understand it, the idle runs the same as stock speed
> (49-50C) but the load goes way above stock (63 vs. 56C). I have arctic
> silver 3 paste on it, and with this apparently good hsf (by reviews) I
> still get these bloody hot temps!

The only reviews I could find were user reviews, and while most of
these were positive, the V10+ looks like a piss poor cooler to me.
Although its all copper, it's small and only has a 60x10mm fan on it that
only produces about 21cfm airflow. You could try a larger fan (60x25mm) if
you have one laying around, but I'd just replace it with a TR2-M1 or M3
for about $10 or less and be done with it.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
http://mysite.verizon.net/res0exft/cpu.htm
 
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