Coppermine PIII highest voltage

[microfire]

Whats the most volts you can put through a coppermine cpu, im aware that most are about 1.6-1.7v standard. My PIII 700E I have put 2.2volts into it without cooking it. I dont think I should take it to the next level 2.3volts which may mean dead cpu?
I am only using a FOP32 air cooled heatsink.

Im :mad:

[Lancelot]

I wouldn't even go beyond 1.95Volts, EVER! It's just too risky cuz even though you have excellent cooling you'll shorten the lifespan of the die considerably. And if and when she fries, it's always going to happen during the weekend or at that LAN-party etc. LMAO!

[batboy]

Even 2.2v sounds like too much in my opinion. What are your CPU load temps? It's the combination of high temps coupled with high voltage that eventually fries CPUs. I have a FOP cooler and I generally limit the voltage on my P-III 700 to 2.0v.

[SirLaw11]

Coppermine on asus Cusl2 series can support 2.4 max. Right now i am using a P3 1Ghz@1155 VC 2.05. Temp is 38 idle and 55 full load.
No lock up or whatsoever.

[KILLorBE]

It depends as they come in many flavors 1.65V (cA2 and cB0), 1.70V (cC0) and 1.75V (cD0).

I would say 2.0 - 2.1V for the cA2, cB0 and cC0 stepping.
Don't know what would be safe for cD0 stepping, MAYBE 2.15 or 2.2V.

But that doesn't mean you will kill it instantly if you go a bit higher, you could be lucky.....or not. Just keep in mind that the higher you set your CV the more you will speed up Electromigration (http://www.csl.mete.metu.edu.tr/Electromigration/emig.htm) thus shortening your CPU's life span. (High temps will speed up electromigration as well)

Some ppl claim they have/had it running @ 2.4V, guess its up to you.

[microfire]

yeah I think I will try out 2.3v
now that you mention it i may as well try 2.4v?
doesnt matter if it only last 2-3years instead of 15years cause it will be basically a P100 in those few years

im gonna :mad: it, well I hope it doesnt

[microfire]

just tryed 2.3v it worked, till it booted into windows then it completely shut down, backed it right off to 2.0v and running at same speed as before 983mhz, may even have to drop to 970mhz? damm i will miss the higher fsb.
not gonna try 2.4v since i cannot get into windows at 2.3v

chirp.

[KILLorBE]

I think you can keep it at 2.0V, as I've been (and still am) running mine at 2.0V for months (almost a year)......but it could die today, tomorrow, next week, next year....who knows?

But hey that's what OCing (and life) is all about......you can never be sure:D

Personally I like taking a risk :D

[outhouse]

Ive been running 2.10 on my p3 1g for quite a while with no problems but my temps are low [very low] under full load i'm in the low 30C range, aircooled like you, if you want to get more out of your system instead of raising CV get your temps down ducting, better case cooling, folding or rounding your IDE flat ribbon cables ect ect. the cooler the better and th ehigher you will be able to overclock.

One note in case you dont know your getting very close to frying your chip, the p3 1g will fry at 60C some say 70C but at 55c your to close as your actual temps may vary from what your thermistor is reading.

[MikeTimbers]

My 750E cC0 has been at 2.1v since the day it arrived (well over a year, I think) so it can run a 1Gig. Fully loaded 24/7 (Genome (http://www.thegenomecollective.com)). Ran at 2.2v for a while but no longer need so much juice.

As for premature elctromigration, how many people are using a cpu more than three years old? And given the price of these little bits of clever sand, who cares if it doesn't live its full lifespan?

[microfire]

in 3 years when your chip dies you can get a new old one for only $10.

chir!

[Falkentyne]

Originally posted by SirLaw11
Coppermine on asus Cusl2 series can support 2.4 max. Right now i am using a P3 1Ghz@1155 VC 2.05. Temp is 38 idle and 55 full load.
No lock up or whatsoever.


what stepping is that cpu? 2.05v seems a bit high.....you can't run it close to default?

or is that a cB0 stepping ghz chip?