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which is safer: multiplier OR multiplier + fsb

Q

Quad

Golden Member
i'm planning on oc'ing a tbird 950 on an msi k7t pro2a with a global win fop32 hsf

which will be safer? just pushing the multiplier to 10.5? or should i decrease the multiplier to 8.5 and fsb to 133? will both be ok? or are these values too unrealistic. correct me if i'm wrong
 
With that kt133 motherboard, good luck getting your fsb over 110, so your best bet would be multiplier, but you could always up the fsb a little bit just to tweak it out
 
thanks guysbut i've heard that, just say for example, u have the tbird 950. i've read that by dropping the multiplier down a lot, you are able to push your fsb up....way up! i even say one person had a tbird 1.2, decreased the multiplier to 10.0 and upped the fsb to 145! how did they manage that, when i thought the fsb wouldn't go over 110?thanks again
 
that's with a kt133a motherboard - not with a kt133 motherboard. Motherboards using the kt133a chipset are just starting to show up on the market.
 
Quad,

I don't know if k7t pro2a is based on KT133 of KT 133a. If it is KT133, you will not get past 110 MHz FSB. If it is based on KT133a, you will have better with 133 MHz FSB and beyond.
 
ahh, i see
so with my specs (tbird 950 on msi k7t pro2a with global win fop38 hsf), what can i expect to able to push my mulitplier to? 10.5? 11.0? what's the max, with my set up, that i can expect without becoming unstable?
also, will i need to push the voltage to 1.85?

thanks
 
Multiplier is safer but yields less performance boost as with FSB your increrasing more than just the CPU clock speed.
 
alright guys thanks.
so basically, is the following overclocking outline correct? :

start by increasing multiplier one notch at a time. go play q3 for an hour, then ut for an hour 🙂. if it's stable, then go up another notch and continue. when u reach instability, increase the voltage from 1.75 to 1.8. test again. if still unstability, go 1.85. if it regained stability with 1.8, then increase multiplier again, until u reach instability. then increase voltage to attempt to regain stability. so pretty much, keep repeating this procedure, making sure u don't go past 1.85v...and wait till u reach stability with zero crashes..

is that an accurate way to successfully oc?

thanks
 
Don't forget your tempurature....

My TBird can clock at 950 at 1.85V but it pegs over 60 degress celcius....

other than that your method is roughly accurate. I personally woudln't consider 2 hours of Quake3/UT stable....

I run RC5 and Prime95, then throw in a game or two if you like.

Running a single game isn't stressful enough on the CPU in my view. Plus 2 hours is hardly long term stability.

But performance always comes at the cost of something (heat or stability usually).
 
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