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FSB overclock question

post #1 of 5
Thread Starter 
ive just started at overclocking and have a question.

how high is it safe to take the fsb (or HT i believe its also called?) on mine its stock at 200 with a multiplier of 12.5 and ive got it at 210 with a multi of 13 and running completely stable at 45c under 100% load.

from what ive found online from other people that have overclocked the same cpu is they generally have a very low fsb like 201 and a high multi of ie...17 any reason for this?

my ram is rated for 1066 but i have it under clocked to 800 for head room. any help or answer is greatly appreciated! =)
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post #2 of 5
You can take the reference clock as high as it can go without any ill effects-- but just know that the reference clock controls the frequency of the HT clock, NB and RAM through their respective multipliers of course -- so yea you'd probably want to lower the multis on all of these at first -- concentrate on the CPU frequency in the beginning-- see how high you can get it with just the mult-- then once you find the limit on that up the vCore while checking stability-- and see if you can get it any higher. Then Once you hit a wall you can start upping the reference clock to see if you can get it any higher (from what I've seen people tend to run into a wall by just upping the multi-- so they usually get a higher OC by raising the ref. clock and adjusting the multi accordingly for max OC).

Then once you find your CPU freq. limit you can concentrate on the other components -- one at a time-- and find their limits-- then it's just a matter of balancing the ref. clock with the various multis to attain greatest performance system wide.

Sorry for the long winded response, but in essence yes, you can raise the ref. clock as high as it can go without fear of damage or negative consequences besides instability if you've got it too high.
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post #3 of 5
Thread Starter 
awesome you've been a big help!
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post #4 of 5
although any overclocking ur risking a lower life expectancy for ur proc. but from what ive seen the life expectancy drops more when u start to up the vcore i personaly would play with the multi and the ref. clock untill you got a max oc out of it....changing the vcore can be tricky and harmful if done wrong
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post #5 of 5
the life of the chip doesn't drop THAT much though.

you'd end up upgrading your chip long before you fry it with Vcore (unless you're pumping 1.7v into a 65nm chip)

I had 1.77v pumping into my 120nm s754 Newcastle for at least 2 years and it was perfectly happy like that.
I had 1.8v+ going into my OLD athlon xp 2800+ for at least 2-3 years, and all of them still work fine (except the 2800+ chipped...)
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