A few questions on a Pentium M?

[Andrew1990]

Well I plan on overclocking this chip to get a tad bit more peformance out of it as well as bragging rights that I have a overclocked mobile chip, lol.

The questions are,

What is a safe voltage for it? The stock is 1.34v, and I have seen some online review sites push it up to 1.6v(I think that is a little too high.)

Will I have to worry about any dividers or anything? The FSB of the chip is 533MHz(133QPD) and my Crucial Ballistix can do 900MHz Easy. Do I just run a 1:1 ratio with it as my motherboard doesnt allow me to go any higher than 533MHz with the memory but will raise it when I overclock.

Also, would I notice any better overclocking results by putting a better cooler on the NB?

[Raptorfury]

the older pentium chips handle the memory differently . the memory will be quad pumped @ all times . so try and keep the memory @ its rated speed . fsb x 4 = actual mem speed (that be a 1:1 ratio) if mem serves me i believe them dividers go down lower then that . when your overclocking just keep an eye on the temps . and only add voltage when its absolutly needed . but either way @ 1:1 ratio esentially , u coul dgo to 225 fsb long before you hit the memorys limits ..

[Andrew1990]

ok thanks. The reason I need to bump up the voltage is the CPU is not stable at 160fsb. The 7x0s were known to be able to get up to 250fsb with a slight increase in voltage, so I know I have a bit of headroom.

[Raptorfury]

good luck ;)

[trueg50]

Processor finder (http://processorfinder.intel.com/details.aspx?sSpec=SL86G) is your friend.

Looks like 100C is the thermal spec, and it can take 1.4 volts. Now the 1.4 doesn't mean squat usually. Just look at the process is built on; 90nm. I would feel comfortable taking a 65nm Intel chip up to 1.5 volts. so maybe keep it below 1.6, unless you cooling handles it fine, then I would go higher.

[Kougar]

As trueg said, Dothan is a 90nm CPU. Anything to 1.4v is fine and 1.5v should also be fine as long as you have the cooling for it.

If you plan to push it much further then you will need active northbridge cooling... a bit of your favorite thermal grease under the heatsink, a fan ontop, and it should be fine. It won't get you higher overclocks, but it should make some of them more stable.