What does a CPU run at if the PLL does not support its FSB?

Here is what I've done:
Installed a t6600 in my m860tu
Run it at 2.2ghz, 200mhz FSB
Found the PLL bytes for normal operation, 266mhz
Run it at 2.9ghz

Also:
Installed an e8235
Found the PLL bytes for 200mhz
Run it at 2ghz


So now I have a question.
What (hard) mod can I do to the socket or PLL to either lock the FSB to 266mhz OR disable the 200mhz mode?

Bonus question: Do you think it will boot? Explain in your own writing. Due friday (kidding)

 

A FSLx mod on the PLL can force a 266mhz FSB. It should boot if the CPU is stable since you already tested 266mhz FSB before.

 

Is it that hard?

I think you should provide some evidence to back up you answer as well... It did run btw... just with setFSB instead... but it restarts and locks it to 266

Spot on. I'll start doing some more research.

Hopefully once I get it locked to 2.9ghz, I'll still be able to use setFSB for the 287mhz mode and get to 3ghz (3.6ghz @333mhz might be a little ambitious )

My question now is, what will my RAM do?
Now that is a discussion for those with knowledge of these fundamentals. When 333mhz is forced, it OCs DDR3 1066mhz RAM to 1333mhz. but when its forced to boot at normal 266mhz with a 200mhz CPU...?

Lets hope my chipset doesn't get as confused as I am about what component makes these decisions in a laptop. hehe

 

Your still talking about the chipset support i think.
Are you saying that you have personally taken a pm45 laptop that supports 1066mhz and 800mhz FSB, done a PLL FSLx pinmod to disable the 200mhz mode, and it didn't boot?
I'm talking about PLL. We really have no idea what will happen.

Actually I agree, I don't think the above will work. I think I will have to force the 266 mode in place of the 200 somehow.

The e8235 was a dumb reference on my part, I was just mentioning that it is possible.

What I'm trying to do is essentially the same 200>266 socket pinmod that locks to 6x on intel chipsets, but instead do it with PLL. Then it wont be locked. And there should be more software overclocking potential after that...

Right now you're correct in thinking it is useless because I can already get both my CPUs to about 3ghz. It wont be, however, if I get a t9300 and run it at 3.3ghz ++

 

You can start here. Pay attention to the RAM timings section in particular.
Your RAM will overclock from stock by 33%, in proportion to the increase in FSB. If RAM is running at 800mhz, it will be running at 1066mhz after the mod as it has to maintain the FSB:RAM ratio.

He already installed the E8235. It runs at 200mhz FSB. An FSLx mod is not the same as a BSEL mod. It won't lock the multiplier to 6x.

I have worked with and on the M11x GM45 PLL to hardwire 266mhz FSB. This mod is enabling 266mhz FSB rather then disabling 200mhz FSB.

Your last paragraph is exactly what you need to do.