Can't Overclock Gigabyte GA-P35-DS3L and 2160 Processor

I can't get my Gigabyte GA-P35-DS3L and Intel Dual Core 2160 Processor to overclock at all.

First of all, I am a total nubie at overclocking and this is my first post. I read on Tom's Hardware web site how easy it was to overclock the 2160 processor with the Gigabyte GA-P35-DS3L, so I thought this would be a good first OC system for me. I have built a few other systems, but never overclocked. I can not seem to get this system to overclock at all, so I am sure it's operator error. In addition to the MB and Processor, I installed a COOLER MASTER GeminII heat sink with 2 fans and Artic Silver 5, 2 gig of OCZ Platinum PC6400 (4-4-4-12 timing), a 430 watt Thermalake Power Supply, XFX GeForce 7100 GS video card and a 320G Seagate SATA hard drive.

I put the system together and installed Windows XP & drivers. I let it run for a day and all seems fine. Baseline temps are about 35C full load about 48. I thought this may be a little high for pre-overclocking?

I then entered the bios and first tried to go straight to 3ghz (9x X 333mhz) but upon reboot it immediately reset the mhz to auto. I did some reading and tweaked the CPU voltage, RAM over voltage, etc. I tried lowering the mhz, but every thing I try results in the system resetting to default. Below is an image of my last Bios settings which again resulted in the system resetting to the default. I would appreciate any suggestions or recommendations on what to change to help me get to at least 3ghz. Thanks!

I really appreciate the help. I was able to go into the System Memory Multiplier and set it manually to 2.4 which kept 800mhz after I increased the FSB. This allowed me to successfully boot. So I am now running at 3ghz (9 X 333mhz).

I am a little concerned at my temps. Idle runs about 41C and full load about 69 (after 15 minutes). However, I am running two 80mm fans on my heat sink and it is designed for two 120mm fans (which I have on order) plus I have not installed a case fan yet. So I will be working to get the temps down.

Speaking of temperature, what is the average I should see with this processor at 3ghz and what is the max temp that I should not allow it to get to.

Also, below are images of my new bios settings and my Core Temp and CPUZ results. Any recommended changes?

Once again I appreciate the help.