Kt7 overclocking (maybe Wes Newell may know ?)

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

On Mon, 06 Jun 2005 14:38:11 -0400, jjbtnc wrote:

> I've not had much luck searching so thought i'd start a new post.
>
> I've seen loads of posts on various forums about using xp cpus in kt7
> (not a) boards and managing to get some extra life out of the setup.
> I've tried this with a mobile 2600 cpu (barton core i think) and it has
> also worked. Only problem was that i had to do the pin mod to get the
> higher multipliers rather than it working straight off from dropping the
> cpu in even though mobile cpus are unlocked. Anyway i'm running at
> 20x100 and i wanted to know how far i could push this chip and what
> settings i would change.

With luck, you could get 24x116 with enough vcore, but to play it safe,
I'd stay at the max I could get using 1.75v. That should be 2200-2400MHz.
The only settings you need to change are the multiplier and vcore.
See Multiplier Cross ref. in link in sig line to choose your multiplier.

> I'll up the multi to 24 but I've also seen reports that i may be able to
> push the fsb to 116ish any further there are problems. What stops the
> fsb going higher ? Is it that the pci bus is being pushed to far - i
> presume that it's a third of the 116 so 38 for the pci bus might seem
> the max or is it a problem with the memory being pushed to far -which
> would run at the fsb of 116 i presume ?

I'm not sure what stops it but I heard the lack of a 4 PCI divider does,
although using FSB Plus isn't supposed to add to the PCI clock. Max I got
was +16 though (on 2 boards) and it wasn't a ram problem as I used PC150
ram.

> If i do want to increase the fsb do i do this through the bios setting
> 'CPU FSB Plus (MHz):' ? This setting seems perfect for increasing the
> cpu fsb as it says it does it independantly but i have heard reports
> (and sort of supported by an email i got from abit) that it doesn't
> actually do this independantly and that it will in fact affect other
> settings such as the pci bus and memory.

I got the best results with this setting.

> Or can i try a few of the settings in the bios setting 'CPU FSB/PCI
> Clock:' ? There various settings in here so any worth trying ? I was
> looking at the 136/34 setting but then realised that my memory would be
> run at 136 and i think i only have pc100. I take it that even if you
> have grade A top notch ram there still no chance of pc100 working at
> pc133 speeds. Is there a chance of this cpu/pci setting of 136/34
> setting working if i did have pc133 ? otherwise there is a setting of
> 115/38 so i might go for this

I didn't have much luck here as the highest that worked was 115/whatever
and I could get 116 with the FSB plus.

> Just as an after thought are there any programs that can tell how far
> memory can be pushed ? Seems to be that you can push different makes and
> quality of ram(even though the same default speed) at different rates -
> any way of finding this out ?
>
None that I know other than trying it. It shouldn't be a big drawback
though. Just leave the ram at FSB clock only. I would think most PC100 ram
would do at least 116, but I wouldn't say for sure. You'll just have to
try and see.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
My server http://wesnewell.no-ip.com/cpu.php
Verizon server http://mysite.verizon.net/res0exft/cpu.htm

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

"Wes Newell" wrote:
> On Mon, 06 Jun 2005 14:38:11 -0400, jjbtnc wrote:
>
> > I've not had much luck searching so thought i'd start a new
> post.
> >
> > I've seen loads of posts on various forums about using xp
> cpus in kt7
> > (not a) boards and managing to get some extra life out of
> the setup.
> > I've tried this with a mobile 2600 cpu (barton core i think)
> and it has
> > also worked. Only problem was that i had to do the pin mod
> to get the
> > higher multipliers rather than it working straight off from
> dropping the
> > cpu in even though mobile cpus are unlocked. Anyway i'm
> running at
> > 20x100 and i wanted to know how far i could push this chip
> and what
> > settings i would change.
>
> With luck, you could get 24x116 with enough vcore, but to play
> it safe,
> I'd stay at the max I could get using 1.75v. That should be
> 2200-2400MHz.
> The only settings you need to change are the multiplier and
> vcore.
> See Multiplier Cross ref. in link in sig line to choose your
> multiplier.
>
> > I'll up the multi to 24 but I've also seen reports that i
> may be able to
> > push the fsb to 116ish any further there are problems. What
> stops the
> > fsb going higher ? Is it that the pci bus is being pushed to
> far - i
> > presume that it's a third of the 116 so 38 for the pci bus
> might seem
> > the max or is it a problem with the memory being pushed to
> far -which
> > would run at the fsb of 116 i presume ?
>
> I'm not sure what stops it but I heard the lack of a 4 PCI
> divider does,
> although using FSB Plus isn't supposed to add to the PCI
> clock. Max I got
> was +16 though (on 2 boards) and it wasn't a ram problem as I
> used PC150
> ram.
>
> > If i do want to increase the fsb do i do this through the
> bios setting
> > 'CPU FSB Plus (MHz):' ? This setting seems perfect for
> increasing the
> > cpu fsb as it says it does it independantly but i have heard
> reports
> > (and sort of supported by an email i got from abit) that it
> doesn't
> > actually do this independantly and that it will in fact
> affect other
> > settings such as the pci bus and memory.
>
> I got the best results with this setting.
>
> > Or can i try a few of the settings in the bios setting 'CPU
> FSB/PCI
> > Clock:' ? There various settings in here so any worth trying
> ? I was
> > looking at the 136/34 setting but then realised that my
> memory would be
> > run at 136 and i think i only have pc100. I take it that
> even if you
> > have grade A top notch ram there still no chance of pc100
> working at
> > pc133 speeds. Is there a chance of this cpu/pci setting of
> 136/34
> > setting working if i did have pc133 ? otherwise there is a
> setting of
> > 115/38 so i might go for this
>
> I didn't have much luck here as the highest that worked was
> 115/whatever
> and I could get 116 with the FSB plus.
>
> > Just as an after thought are there any programs that can
> tell how far
> > memory can be pushed ? Seems to be that you can push
> different makes and
> > quality of ram(even though the same default speed) at
> different rates -
> > any way of finding this out ?
> >
> None that I know other than trying it. It shouldn't be a big
> drawback
> though. Just leave the ram at FSB clock only. I would think
> most PC100 ram
> would do at least 116, but I wouldn't say for sure. You'll
> just have to
> try and see.
>
> --
> Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
> My server http://wesnewell.no-ip.com/cpu.php
> Verizon server http://mysite.verizon.net/res0exft/cpu.htm

Cheers Wes for your info - a great help. I forgot to ask about the
vcore. I was going to ask what would be the highest vcore i should be
willing to go to to get things stable. You reccomend 1.75v - i wasn’t
sure how high i should go due to the fact i’m using a mobile cpu with
a default vcore of 1.45v (although it defaulted to 1.575 when i popped
her in)

Thanks again

--
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