On Tue, 08 Jul 2003 05:52:07 -0700, Clemens Arth wrote:
> Ok, now I bought a Athlon XP 2400+ CPU. The computer recognises that a
> new CPU is there; there are no heat problems at all, that's good...
>
> L2 On-board Cache : 512kB ECC Synchronous Write-Back (16-way, 64 byte
> line size)
Well, you know this is BS. There's only 256K L2 on teh 2400+. Where it
comes up with 512K is unknown. Maybe because it misreadws it as a barton
which does have 512K.
> This is what Sandra tells about the mainboard:
>
> Chipset 1
> Model : Mitac VT8363/5 KT133/KM133 System Controller Bus(es) : ISA AGP
> PCI PCMCIA CardBus USB i2c/SMBus Front Side Bus Speed : 2x 100MHz
> (200MHz data rate) Maximum FSB Speed / Max Memory Speed : 2x 133MHz / 1x
> 133MHz Width : 64-bit
> IO Queue Depth : 4 request(s)
>
Uses VIA KT133 chipset. This chipset doesn't support 133MHz FSB. It just
won't work. And you can trust me on that.
> What's really bad is that there's an INSYDE Software Bios - Mouse
> Support, but no multiplier, no FSB - nothing. What's also a little bit
> annoying is that I told you about 4 switches (on one block). Ok, it
> seems that 4 of the settings are working with the old and the new CPU
> not changing anything. 4 settings make the screen flickering and nothing
> else, and the other 8 settings make the screen blank and nothing else...
>
> So I don't know how to deal with this... what makes me a bit confused is
> this Multiplier Info in the Processor Section (27 x 50 = 1350) - is this
> the same as 13.5 x 100 ?
>
One thing has to be happening. They are changing the multiplier bits.
That;s easy enough to determine sincve the default multiplier for the
2400+ is 15, not 13.5. i think this is a notebook you're dealing with and
I'm not sure what kind of voltages it will supply to the CPU, but you will
need more than 1.45v to get it much higher than it is now unless this is a
mobile 2400+ (XP-M or something like that) At this point you could do
several things, on of which is the pin mod here,
<a style='text-decoration: underline;' href="http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod.html" target="_blank">http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod.html</a>
but I don't know what affect this might have on your basically unknown MB.
The other option, which will be safer, but harder to do, would be to lock
the cpu multiplier by cutting the L1 bridges on it. That would lock the
default 15x multiplier and it should then boot at 1500MHz. If that works
out, you could then change the default multiplier higher. I'd still be
worried about vcore though. It it doesn't provide enough juice the cpu
won't work at higher speeds. I'd say you're pretty much in a pickle.
Personally, I don't know what I'd do. Probably leave it as is if
everything is working ok. Messing with the bridges is a pita. I might give
the pin mod a go though. Seems like you have some choices to make.
--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
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