Need help overclocking 2.26b w/ Gigabyte 8IHXP and RDRAM

I just bought a Gigabyte 8IHXP w/ p4 2.26b cpu and 2 sticks of Kingston 256 RDRAM 1066. I havent been able to get past 2.38ghz without BSOD. People have mentioned to lower my RDRAM multiplier from 4x to 3x but i dont know how. Also, i cant raise the CPU vcore past 1.7volts. Please help, thanks.


Specs:
Windows XP Professional
P4 2.26b(533fsb)
Gigabyte 8IHXP motherboard
2 x 256 Kingston RDRAM 1066
Antec 400 watt PS
Swiftech 478 CPU Fan
3 Case Fans
Antec 1040b Case

I doubt the RDRAM is your problem. 32ns RDRAM is theoretically capable of speeds as high as 1333MHz, which you're nowhere close to approaching. Most likely you're limited by your CPU. If you feel like returning it and getting another, the SL67R cores from Intel's Malay fab overclock very well.

This was on the CPU overclocking section:

L213B367 2720 1.55 SL683 Malaysia 9 Asus P4S533 Running retail CPU fan, idle cpu temp at 40C. 17x160 FSB. Only 0.5V up on the cpu to get it stable.

I have the same FPO/Batch number(L213B367), so i doubt its my CPU. I need to find out how to set my RDRAM at 3x so i can OC higher.

There just has to be a setting in the bios with only those two options. If you cant find it in the manual just go rooting around the bios until you find the x3 or x4 option. It has to be there though.

There isnt, the only option is to set RDRAM to PC800/PC1066/Auto. Whenever i set RDRAM to PC800 and reboot it comes up with an error saying CPU setting wrong, press f1 to enter setup or F2 to continue.

2.38GHz with PC1066 RDRAM will likely be extremely close to 2.65GHz with PC936 RDRAM, which is the maximum that board can do (156FSB). I wouldn't waste your time.

EDIT: It's impossible to raise the vcore beyond 1.7 volts on that board. It just isn't made for white knuckle overclockers.