FSB vs Clock speed????

[Neofate]

Well as I am overclocking this board, it seems like 200FSB really needs voltage, and that makes it unstable. I can run 200FSB at 10x stable.. maaaybe 10.5.

Where is the medium to all of this?

Would it be better to back the FSB down to 160-170, maybe 180 and up the multi to obtain a higher overall clock speed?

What yields the best performance? Is there some sort of rule of thumb here?

IE: if you can go at 160+FSB X 15 multi equalling 2400Mhz then you are better off than 200FSB x 10 = 2000Mhz. Or is the 200Mhz FSB pull off the better performance overall regardless of it lacking 400Mhz in the top end?

Thanks for any and all opinions here!

P.S. What is the highest I can set Vdimm Voltage to be safe?

2.77? Higher lower?

Thanks!

[TiGgErDbC]

i'm pretty sure your bus speed will give you your best over all performance but that of course relies on your ram/mobo and if you have dividers and such..... but i think if your fsb is as high as you can go your gonna get the best performance for yoru comp

[BiG MiKeY]

dude run the benchmarks.....

[Neofate]

Dude I figured this would be pretty common knowledge for authorities on the subject. I didn't know this topic had such varieties in it?


I do run benchmarks, but I don't want to have to test every mhz and multiplier setting for the next week to find out what direction I should take. I have taken the general consensus that within reason the highest FSB you can achieve is best.

[athlonxp]

fsb usually give a higher performance than cpu speed at a same mhz.

u can always vddmod your mobo to get the last bit of fsb out of it.
mobo like 8rda can run at 210-230mhz stable with some vddmod.

try this forum for vmod, vddmod, vdimmmod and many more........
http://www.xtremesystems.org/forums/index.php?

[Neofate]

Ath,

Thanks for the extra forum to post to! Hehe, that makes 5 I will have continuously open.

As for the VDD mod.. I know that is the last resort on squeezing out FSB. However, given that my PSU is generic I am going to wait till I get a quality one before I attempt it, if I do.

The vdd mod seems a bit dangerous to me, although I sometimes go a little overboard on things, so if I can't get the magic "200fsb" I want then I will probably go there.


Either of these 2 things are occuring.

1) My rev 1.1 8RDA+ mobo has a A2 N-Bridge stepping, giving me my troubles.

2) My powersupply is just a piece of ****, and with all the fans and overclocking pulling on it, it just isn't allowing my board to be stable enough and powerful enough to support 200FSB+.

Thanks again