Help me overclock my computer to its limit!

[cannibustacap]

I have an Abit IS7 with GEIL dual channel PC3500 RAM (should max out at 216MHz) and a Pentium 4 2.4C GHz.

Default Clock settings is 200:200 MHz.

Right now I have it overclocked at a 216:216 CPURAM ratio.
Needless to say, that is a 1:1 ratio.

The RAM should get up to 216MHz (its rated at 433MHz, so that would be 216.5x2MHz) in all situations right? (I don't know for sure, I assume)

So, I tried 270:216 (5:4 CPURAM ratio) and it wouldn't work. I ram memtest86 and got over 50,000 errors before I just stopped the insanity.

I had my vCore raised to 1.60V and my RAM voltage at the motherboard maximum allowance of 2.8V.

I have good cooling, a Thermalright SLK-948 with a Enermax 92mm adjustable fan at highest RPM. The system resides between 40C -> 55C (idle -> peak).


What do you suggest I could do to get my computer to run error free at 270:216MHz.
My RAM can withstand up to 2.95V but the motherboard wont let me get it up that high
The CAS of my RAM is 2.5 6-3-3 1T @ DDR433 PC3500
Are there any other settings in my BIOS I can change that will allow me to successfully run my computer at 270:216MHz

--Basically get my computer to run at 3.2GHz with a 866MHz FSB.



BTW: If nothing works, which option, in your opinion or by fact, is better: 216:216 or a 250:200 ratio (both are error free)
Thanks

EDIT: added a signature...

 

[cannibustacap]

bump help

 

[PrkChpXprss]

I'm guessing that you made sure your AGP / PCI bus is locked, right? 33 Mhz.

 

[PrkChpXprss]

Also make sure your Game Accelerator is set to Auto -- all settings

 

[Cardboard Hammer]

You can try loosening the timings on the memory (bigger numbers) to see if it can go any faster.

If you run 250:200 (which I'd choose over 216:216, due to the large difference in clock speed compared to the smaller difference in FSB... take my opinion with a grain of salt, however, as I've never OCed an Intel processor more recent than the PII), you may be able to tighten the timings a bit, but don't lower the "6" or you may encounter data corruption issues.

 

[cannibustacap]

Originally posted by PrkChpXprss
I'm guessing that you made sure your AGP / PCI bus is locked, right? 33 Mhz.

I believe it is fixed? or set to something like 66/33.. I'd have to check. Right now I am away from home.