Right, I had it at 2.9 for a little while, but I came back in the morning to a blue screen, which i could only put down to the OC.

I've been running it at 1.6 for 3 days since, but would like to try again.

I have the ram at 4-4-4-12, @ 700-900MHz, would this be too tight for the ram I have? (in my sig). I also have it at 2.1v


CPU, I had at 1.375v, done a bit of reading and 1.45 volts was used when getting them to 3.2GHz (with stock intel cooler!), and temps were still not too far off stock.

at 2.9 the temps were almost identicle to what they are at 1.6.

Am I ok putting this chip to 1.45v?

What benefit does putting the voltage up on the northbridge bring? I dont know alot about that part of oc'ing.

afaik 4-4-4-12 @ 900 could possibly be a problem, but someone with ddr2 experience will have to clear that up. Putting more volts on your NB means that you can raise the FSB higher, which in turn increases you CPU clock. So you may have to increase it to get to a 3.2ghz, as well as increasing the CPU volts.

I would def recommend getting a new cooler tho if ur planning to run it @ 3.2ghz 24/7, even a cheap Arctic Cooling cooler would be miles better than the stock cooler.

thanks for the reply


any idea what default nb voltage should be? (p35)

The best thing to do is try different memory timings and voltages.

I would change the memory timings and speeds (using a diff divider) while hardly overclocking the CPU to see what sort of speed your memory is capable of. If it doesn't run at 4-4-4-12 you could go to 5-5-5-15 and see, maybe mess around with the timings later on.

Once you know the max limit of the RAM you can move onto clocking the CPU (bearing in mind the mobo may hit a FSB wall).

On my current system I got my GSKill 2GBHZ to 900 @ 4-4-4-12, then moved onto clocking my CPU. I'm also on 1.4VCore in BIOS which gives 1.37V in windows (CPU-Z).
I'd try to keep the VCore as low as possible while keeping the system stable as it ultimately adds to the temp.

You need to consolidate. E.g. make sure only one conponent gives up at any one time. Atm it looks like your memory could be holding you back.
Set the memory dividers so that the memory is working as its slowest speed and slacken the timings. Keep raising the fsb until no go. Add more voltage. And repeat process. You will need a better cooler over 3ghz.

Once you find the max. Bring the ram back up but start with loose timings, then make them tighter. Don't know what ram you have but 2-2.1v is usually ok for most.

Hope this helps you achieve your goal.