cvt
13-09-2004, 06:59 PM
taken from a post I made on another forum.
I think I did some serious damage to my CPU last night :|
it producing errors even at stock speed/volts
*3 week old cpu... dead
time for another :p
It is a northwood, it clocks to about 3.6ghz .. (lost cpu-z screencap of it) on a stock cooler at about 60C (stock core)
once I got it down to 50C with water it went to 3.71Ghz (1.675v) http://www.frahneng.com.au/cvt/cpu-z%203.7.jpg
I then ran stock for a couple weeks, while finishing the chiller.
I then chilled it to -47C (water) actual cpu unknown and managed to get it to 4.2 rock stable (1.7 volts)
I then started getting errors, so lifted it to 1.725 volts and was able to pull out 4.4 acceptably stable (for 1 day) (no cpu-z's (yet))
I then took the chiller out to so some mods and see if I can drop the temps a bit more,
today it wouldn't post at 3.6, so have it at stock again.
admitadly, you shouldn't run a northwood over 1.7 volts, so was running it like that was a huge risk, but more so an experiment than for permenan usage, I was only wanting 3.5 out of it for normal usage, which it does quite good at stock core.
as for how the cooler works, its using a now considered dead method of extreme cooling, revamped, and used in another manner.
I did this more so as an experiment than anything else.
like those that do liquid nitrogen cooling.
and I won't say any more till its complete, photo's of the system up an running..
I'm kinda wanna make a bit of noise about it with photo's when its finished, so not giving out spoilers :)
as for benchmarks, I took them when I was playing with the graphics card, not the CPU.... and weren't all taken with same system settings :p
3DMark 01 http://service.futuremark.com/compare?2k1=8065193 (400/875 of gfx card)
3DMark 03 http://service.futuremark.com/compare?2k3=2997249
3DMark 03 Stock Speeds: http://service.futuremark.com/compare?2k3=2986572
3DMark 03 My old 9700pro: http://service.futuremark.com/compare?2k3=2963272
PCMark 04 http://service.futuremark.com/compare?pcm04=2534880
I think I did some serious damage to my CPU last night :|
it producing errors even at stock speed/volts
*3 week old cpu... dead
time for another :p
It is a northwood, it clocks to about 3.6ghz .. (lost cpu-z screencap of it) on a stock cooler at about 60C (stock core)
once I got it down to 50C with water it went to 3.71Ghz (1.675v) http://www.frahneng.com.au/cvt/cpu-z%203.7.jpg
I then ran stock for a couple weeks, while finishing the chiller.
I then chilled it to -47C (water) actual cpu unknown and managed to get it to 4.2 rock stable (1.7 volts)
I then started getting errors, so lifted it to 1.725 volts and was able to pull out 4.4 acceptably stable (for 1 day) (no cpu-z's (yet))
I then took the chiller out to so some mods and see if I can drop the temps a bit more,
today it wouldn't post at 3.6, so have it at stock again.
admitadly, you shouldn't run a northwood over 1.7 volts, so was running it like that was a huge risk, but more so an experiment than for permenan usage, I was only wanting 3.5 out of it for normal usage, which it does quite good at stock core.
as for how the cooler works, its using a now considered dead method of extreme cooling, revamped, and used in another manner.
I did this more so as an experiment than anything else.
like those that do liquid nitrogen cooling.
and I won't say any more till its complete, photo's of the system up an running..
I'm kinda wanna make a bit of noise about it with photo's when its finished, so not giving out spoilers :)
as for benchmarks, I took them when I was playing with the graphics card, not the CPU.... and weren't all taken with same system settings :p
3DMark 01 http://service.futuremark.com/compare?2k1=8065193 (400/875 of gfx card)
3DMark 03 http://service.futuremark.com/compare?2k3=2997249
3DMark 03 Stock Speeds: http://service.futuremark.com/compare?2k3=2986572
3DMark 03 My old 9700pro: http://service.futuremark.com/compare?2k3=2963272
PCMark 04 http://service.futuremark.com/compare?pcm04=2534880