Preparing Tbird for kt133a

[Guest]

Hello All -

I want to run a standard 1.1GHz Tbird (200fsb) @266fsb, not so much into increasing the clock as taking advantage of the larger bus speed available with kt133a.

Does this require physically modifying the processor, i.e., the "unlocking" I've read about? if so does anyone have a link to a page that show these modifications, and something about the correct bios settings afterwards?

Thanks, Jim

<font color=blue>Micron DDR Cult Member</font color=blue>

 

[TheSandman]

First the mobo needs to support cpu multiplyer changes then you need to unlock the cpu by connecting the L1 bridges on the cpu the set the multiplyer on the mobo to 8.5 and the fsb to 133 you will be slightly over clocked @1130mhz.

SANDMAN

 

[Guest]

Hey thanks Sandman, this is my first time doing modifys so I want to get it right. The boards I'm looking (MSI, Asus, Abit) at all appear to support multiplyer changes.

BTW do you know if this will push the pci bus to hard?

Thanks, Jim

<font color=blue>Micron DDR Cult Member</font color=blue>

 

[TheSandman]

No the kt133a chipset has the correct devidor to run the pci bus at 33mhz when fsb is 133mhz. I preffer the asus a7v133 myself.

SANDMAN

 

[Guest]

I've been looking to purchase the a7v133 with a TBird 800 or 850. Do you know if either of these is stable when running the fsb @ 133? I've heard with the "standard" a7v they can reach nearly 110 fsb, but is that because of the chipset or the processor?

 

[TheSandman]

Hey all the socket a cpu's should be stable with kt133a boards such as the a7v133 that have multiplier control at 133 so long as you ajdust the multiplier accordingly.

SANDMAN

 

[TheSandman]

Also once you get the setup going stable at 133 and default cpu core speed you can go for the overclock via multiplier or fsb increases dont forget for the OC you will need to up the core voltage as well.

SANDMAN

 

[doczenith1]

I read somewhere that the 100mhz fsb amd chips can handle the 133fsb setting with no multiplier adjustment as long as you have good cooling and up the voltage. Sorry...i can't remember the source, but i recall that it was reliable.

 

[TheSandman]

That really depends on the chip and you will need good cooling remember that the cpu speed is the fsb x cpu mult. so the higher the mult. the less likely it will work.

SANDMAN