Change the ram divider cpu/14

Question

ive dropped the ram 166mhz and upped my fsb to 240, and i was expecting to see my ram at 204 but it ran 178, why because the divider is cpu/14, , does anybody know how to fix this to make it cpu/11 on 166mhz,because it doesnt make any sense why it makes it cpu/14 and on 133 it makes it cpu/18(only when o/c the divider is cpu/14)
thanx

Answer 1

Quote
for example if i up the fsb by 40, the ramis supposed to up by 40,
No, the ratio isn't 1 to 1, it's (CPU multi)/(memory divider)*(FSB increase).  If you up the "FSB" by 40, the RAM will speed up by that ratio.  For example, you have a CPU multiplier of 11 starting at 2200Mhz and memory divider CPU/14(because you have 166Mhz memory clock index AND CPU multi 11), and you increase the "FSB" by 40 then the cpu speeds up 440(11X40) to 2640, since the CPU speed is 440Mhz faster, you have RAM 440/14 or 31 or 32 mhz not 40mhz.
The other example would be you have a CPU multiplier of 11 starting at 2200Mhz and memory divider CPU/11(because you have 200Mhz memory clock index AND CPU multi 11), and you increase the "FSB" by 40 then the cpu speeds up 440(11X40) to 2640, since the CPU speed is 440Mhz faster, you have RAM 440/11 or an increase of 40Mhz.
That CPU/x is all dependant on 2 variables.  Memory Clock Index(200, 166, 133, 100, etc) and CPU multiplier(11x, 10x, 9x, etc).  
If you have Excel try playing with this.
http://www.geocities.com/gtstrider/
or a Java based one.
http://home.arcor.de/xxmartin/Calculator/
the first one is clearer in showing how memory clock index, and CPU multi relate, IMO.