overclocking an athlon 64 setup...

[Snow-Munki]

Hi,

was just wondering how you wouldgo about overclockin an athlon 64 setup as i heard they are quite different.

as you keep upping the FSB as normal but you can force the memory to run at a lower speed ?

and you can adjust the HT frequency aswell ?

oh and what voltages are safe for the athlon 64's, same as the xp's ?

thanks

[Hottentot]

Yes you just up the FSB , the CPUs are multiplier locked upwards so you can only decrease the multiplier. On my mobo you can run the memory with 3 different dividers and also the HTT has 3 different divisors. Basic voltage is 1.5 so you can certainly go up to 1.7v safely. You need a mobo with a pci/agp lock to do any serious overclocking.

[Snow-Munki]

Hi,

thanks for the reply..

so what do you do about the memory and HTT dividers as that bit i'm confused on...

[Hottentot]

It seems to work like this on my VIA chipset.

Memory speed = (New FSB / Base FSB) x Speed memory set in BIOS

For 230 FSB with memory set to 200 in BIOS. 230/200 x 200 = 230 MHZ

For 230 FSB with memory set to 166 in BIOS. 230/200 x 166 = 191 MHZ

For 230 FSB with memory set to 133 in BIOS. 230/200 * 133 = 153 MHZ
The default FSB is 200 MHZ

Their are 3 speeds you can set the memory to run to in the BIOS - 200 , 166 or 133 MHz

The HTT works in a similar way but the speed of the HTT has very little effect on performance