Asus P5KPL-CM Ocing

Guys I have P5KPL-CM, Q9400 and XMS2 800Mhz and I want to OC it but my bios options are confusing to me.

First of all in manual settings it has only following options.

CPU Frequency [auto,400,333,266,200]
DRAM Frequency [auto,667,800,1000,1110]

1.8v dual over voltage [auto,1.80v,2.00v,2.25v]
1.5v over voltage [auto,1.5v,1.6v]
VTT_CPU over voltage [auto,1.2v,1.3v]
1.25V over voltage [auto,1.25,1.4v]


My CPU multiplyer is 6-8

I have set my FSB to 376*8 (from 333*8) and DRAM frequency to 800Mhz and all the voltages are at default. It gave me 3.0Ghz but it also increased the memory frequency to 850mhz which I am unsure is good for XMS2. I want to OC the processor little more without increasing the memory frequency.

And for this mobo/pro what temps are good after ocing. My current @3.0 are 37-40 to 65-68 in realtemp.



I want to overclock the CPU little more without any negative effect on memeory performance, can any one suggest me best settings for it.



http://dlsvr04.asus.com/pub/ASUS/mb/socket775/P5KPL-CM/P5KPL-CM_manual_E3662.zip

Set the DRAM frequency to 667 and that should drop the memory speeds and allow you to o/c the CPU a bit more.