So close to 2.5gig

[Cabal]

My 2100+ just about boots into windows at 2.5gig at 1.9v using PC2100 ram, hopefully my Mushkin black PC3200 which turned up today will help.

My question is what's a safe voltage to be using day to day?

It got very hot at 1.9v using air cooling, hopefully when I get my water cooling reset up it wont be so bad.

My bios allows me to go to 2.2v from the CPU default of 1.6 but I am unsure how high I can go before my CPU has a meltdown.

[sparkles]

well the cpu can take pretty high temps, but won't last as long if that's the case.... if you're like most people here, and your cpu dies in a year or so, well, you'll be wanting to upgrade anyways :D

i wouldn't wind it up to 2.2v, but that's me. i guess that it really depends on the temps your getting. how hot is it now? i wouldn't want it running anything over about 55 on a regular basis... but bear in mind that most mobo sensors are also pretty inaccurate.

[Antallica]

The RAM will make the most difference. 1.9v should be more than enough. If you were using a Polamino then I'd suggest 2v on H2O.

But get W/C either way ;)

[swiftynz]

1.9V, dude, thats way too high for a tbred imho. but i suppose what it comes down to is how much risk you're willing to take.

personally i wouldn't take my palomino past 1.9V, and my personal upper limit for a tbred would be nearer 1.75 (for everyday use).

[Wibber]

go hard , but dont expect the chip to be working in a year ;)

[ZeuS]

They are spec'd at + - .5v, so 2.1v max, much after that u'll start toasting your cache.

I run mine at 2338 mhz (166x14, but mobo makes it 167) with 1.8v (1.825), much above that and the mhz to voltage ratio goes nuts, peaks just over 40C at load.

[SilverPriest]

For a Tbred B anything much over 1.85 is going to kill it within 6 months to a year, mabye sooner, regardless of the temperatures you have it at.

Electromigration is a ***** ;)

[mird-OC]

tbred spec'd upper voltage limit is 2.0V... which is pretty generous IMO. anything over 1.75V should definitely be water (or better) cooled, especially at that speed.

you'll be looking at around 125W running that speed and voltage which is just a crazy amount of heat to deal with off a 0.13 micron core.