1:1 ??? what does that mean?

[k_r_i_p_l_e_r]

what does 1:1 mean ? is it like having a 3.2 ghz cpu with pc 3200 ram ? i'm lost here

[Shuzzy]

1:1 is the ration at which the cpu's fsb runs with the ram.
ex: if you had your ram running 1:1 then when your fsb is running at say 250 your ram would be running at 250mhz (500) which is too much for pc3200 to handle.
But if you run your ram at 5:4 ratio when your fsb is set too 250 then your ram would be running at 200mhz(400).

read this guide, its got the info your looking for:
http://www.ocforums.com/showthread.php?t=263753

gl.:)

[mattspalace]

A 1:1 ratio means that your CPU and memory bus are running in sync - or if you're running a Pentium 4 with an 800MHz fsb, then it's actually 4 x 200Mhz. Match that with some PC3200, which is DDR400 (or 200 x 2), and you see that's it's the same bus speed.

[djs488]

yes mattspalace is correct. today's intel processors are quad-pumped, which means their FSB is really 200x4. now the ideal ram would be PC3200. but lets say u intended to overclock ur cpu as soon as u got it. then it would be wise to buy pc3700 or even pc4000 to accomodate for bus speeds of 925 and 1000 respectively. now, thats not to say that pc3200 ram cant run at a higher speed than ddr400, but memory has its limits in overclocking just like everything else.