Here is a compilation of some of my postings
There are three main components overclocking, and you need to start out by testing each one seperately to find your limitations for each one.
1. Chipset (HTT bus speed) - To find your maximun HTT, drop your LDT to 3x, drop the CPU multi to 6 or 7, set max ramclock to DDR200. Then increase your HTT in increments as far as you can and remain stable (test with Prime95 for 10min). I can get to HTT 335, the best I,ve seen is 342
2. CPU - change the CPU multi to 9-10(test both), Increase the vcore to 1.550, leave the rest of the settings as described above. Now increase HTT as described above until you reach your stability limit. My best CPU overclock with the 3200+ on this board is 9x289=2601mhz.
3. Ram - Drop the CPU multi back to 6 or 7, and reduce to stock CPU volts. Change the Max Ram clock to DDR400 and increase DDR volts to the warranty limit of you ram. Set your timings at 3-4-4-10 1T, now increase your HTT as described above, except now use memtest to test for stability instead of Prime95. This board currently limits ram at 240-250mhz 1T. So if you've got the same ram as mine, you can skip this step because it will run 240-250 with auto timings at 2.80v no problem.
Once you go through these testing steps you will be able to identify your limitations in each area, You go with you maximum CPU overclock and set your max memory clock to acheive you best combined overclock
First off, Google for and find the free download for "Glockgen NF4" its a great tool for showing your CPU and memory speeds, and most importantly it will let you set the CPU voltage higher than the some bios.
1003.6 beta bios also supports a higher voltage setting
The bios voltages works this way
1.650 gives you 1.58 per cpuz and AI booster and Asus Probe
1.6375 gives you 1.58
1.550-1.6275 give you 1.50 (max setting in the 1003 bios)
Clockgen settings
1.550 gives you 1.58 (clockgen shows 1.45?)
1.450 gives you 1.58 (clockgen shows 1.45)
?Max memory clock? Is actually your CPU to RAM ratios (it does not limit ram to the rated speed) this confuses almost everone.
DDR400 = 1:1 ie? HTT 200mhz = Ram 200mhz
DDR333= 6:5 HTT 300mhz = RAM 250mhz
DDR266= 3:2 HTT 300mhz=RAM 200mhz
AUTO= auto dividers once ram reaches 217mhz and keeps it less than 200mhz
Start of by using the DDR266 setting 3:2 divider to remove ram limitations when testing for your best CPU overclock. Once you find the ceiling on you CPU you can adjust your RAM settings later. Leave all other ram settings at auto
Increase the CPU voltage to 1.550 in bios (1.50 actual), Change the HTT multi to 3x
Cpu muti 9
HTT 235
This will give you 2115mhz
From here increase the HTT 2-3 mhz at a time, test for stability with Prime95 or Super PI for 10-15 minutes every so often. When you start getting errors in Prime or Super PI use clockgen to increase the voltage to 1.550 (1.58 actual) continue increasing HTT until you get errors again. Back up to your previous settings (this is your maximum CPU O/C)
Check for the mfg's specs for voltage on your ram. I use OCZ and this board sets my DDR volts too low at default. My OCZ EL PC3200 Platinum rev2 call for 2.75 and the board gives them 2.60. I'm currently running at 2.80v 236mhz