Help me out, hard time understanding ratios? formula?(a64 3000 +neo4)

Question

Specs are
k8n neo4 plat
a64 3000 venice
2x1gb corsair xms 3200
x800xl
520 ocz powerstrem
can some one give me there settings in bios so i can try them out, i want to try something moddest, im aiming for 2.2ghz maybe 2.4,
I really want to learn how to overclock but reading these guides are really confusing me, there seems to be a formula or ratio to how you overclock,
but im not getting it, its like a math formula isnt it? its freezing up my brain
can some one break down how the ratio or formula is done in order to get the desired overclock?
i understand that all setups will vary even if they are similar and my results will derive from my particular hardware.
i also understand the best way to know what your particular setup can handle is by testing the different settings at a time using programs such as cpuz, memtest and prime95..
any one mind helping me out? i chose this cpu for the sole purpose of overclocking it even though iv never even read about how to do it      anyway thanks in advance.
 

Answer 1

The A64 boards only allow a few ratios, but lowering the memory speed to have tighter timings usually yields beter overall performance....
Value RAM usually has problems at the HTT's these A64 boards and CPU's can run at, but the "better" memory on the "right" board, can do cas2.5 at 300HTT....!
The typical ratios the 64 Bit BIOS allow are:
200 = 1:1 ratio with HTT and memory clock, so when HTT is 250 the memory clock will be 250
166 = 5:6 ratio, so when HTT is 250 the memory will be 208
133 = 2:3 ratio, so when HTT is 250 the memory will be 166
100 = 1:2 ratio, so when HTT is 250 the memory will be 125
Auto = I'm 80% sure that Auto = 1:1 ratio too
Some boards express these ratios in percent...