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Overclocking an amd processor

post #1 of 8
Thread Starter 
I'm trying for the first time to OC an AMD processor implementing HyperTransport. The processor is Athlon X2 5000+(AM2 socket).

What I didn't understand in AMD processors, is what is the use of the HT multiplier. Is it the same a cpu clock multiplier?

And I believe HT=Bus right? so when OCing an AMD processor I'm basically overclocking the HT speed?

Please note that I'm a pretty experienced overclocker in Intel(or older AMDs). So I don't need any background in OCing - just an answer to these questions.

With regards,
Guy
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post #2 of 8
Basically, the FSB x CPU Multiplier gets your clock speed.

Keep the FSB x HT Multiplier at/below 1000MHz. Im not exactly too sure what role the Hypertransport plays within the motherboard, though (don't want to give a wrong answer).
post #3 of 8
Thread Starter 
thanks but this still doesn't answer my question.

fsb = hyper transport in amd?

fsb x HT multiplier - what does this mean. What is it's peer in intel based machine?
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post #4 of 8
Quote:
Originally Posted by GGuyZ View Post
thanks but this still doesn't answer my question.

fsb = hyper transport in amd?

fsb x HT multiplier - what does this mean. What is it's peer in intel based machine?
FSB + HT Multiplier = HTT

You don't want the HTT to exceed 1000 (1050 is where instability starts)

Anything is pretty much like Intel from that stand point.
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post #5 of 8
Thread Starter 
Thanks

How does this impact performence? Practically speaking, what does this speed refer to?

Which components use this 1000Mhz speed to interact?

I've also seen claims that certain chipsets(like RD580) can do 1200-1300Mhz. Is this true? and what is it good for?
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post #6 of 8
Quote:
Originally Posted by GGuyZ View Post
Thanks

How does this impact performence? Practically speaking, what does this speed refer to?

Which components use this 1000Mhz speed to interact?

I've also seen claims that certain chipsets(like RD580) can do 1200-1300Mhz. Is this true? and what is it good for?
It's between the chips, CPU->NB->SB

You'd likely see a minimal increase in performance (About 0.5% in 3DMark05 for each 50 MHz above 800HTT.)

And yes, it is true that RD580 can do 1200-1300MHz, but again, the performance gain is minimal.
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post #7 of 8
Thread Starter 
Thank you you've helped a lot.

If we can discuss this in greater detail - I thought Hypertransport replaces the FSB. If this is the case why is there an FSB x HT multiplier?
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post #8 of 8
To my understanding, the HTT does replace the traditional FSB. The HTT operates at a base frequency of 200mhz and then multiplied by the HTT multi yields the HTT frequency. When people refer to the FSB x HT multi, they are just refering to the base frequency times the HTT multi. Like OCing Intel systems by upping the FSB, the base frequency can be upped to OC HTT equiped systems.
    
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