E6750 @ 4GHz (Orthos) on Wintry Scottish Air

[LennyRhys]

I know that I should aim for 8+ hours or Orthos for assured system stability but I decided against it because I don't like the MCH voltage being so high without active chipset cooling, and I'm not altogether sure about my memory being at 2.2v for extended periods. I'm not going to run my system at 4GHz 24/7 unless someone tells me that these high component voltages are A-ok for everyday use. Here are my settings (I have no idea what the actual MCH/FSB voltags are, since BIOS doesn't tell me):

CPU: 1.568v (bios)
Mem: 2.2v
FSB: +0.05v
MCH: +0.3v

Bedroom ambient temp was 10°C (thermo sitting on desktop right beside open window) and outside air was a chilly 0°C. Last time I did 4GHz on Orthos my ambient temp was 20°C and my CPU nudged 65°C for a couple of seconds before sitting happily at 62°C.

So what should I do? Should I try Orthos for longer and then just leave my system at 4GHz 24/7? Or should I just accept that this is a nice achievement for my PC and settle for a lower clock speed with lower voltages?

Cheerz. :up:

[Xvys]

yep, if the system ran at full tilt for one hour, that should be good enough to confirm it's stability...unless you planned on using it at that speed 24/7!

My P5K/E6300 setup can do 533FSB, but I have backed off to 490FSB and reduced the cpu to 1.36v and the ram 2.05v @ 980Mhz (Crucial Ballistix). Although ram is often rated for 2.2v, I would never use more than 2.1v for extended periods. Mind you ram is so cheap now, if it burns out, no biggie!

[pH(x)]

Good results with an E6750, excellent work!

[Onecar]

E6750 @ 4GHz? Don't know many people with that high clock, good job :up:.

I would lower the voltage, 1.5V is not that much, but maybe your CPU can run 3.8GHz with 1.4V and that definitelly is a big difference in temperatures (and not so big performance difference). Well it's your choice, as I said 1.5V is not an extreme voltage (I've seen some E2140 @ 4GHz @ 1.65V @ cooled by AIR running 24/7, so you're very nice to your CPU, comparing to them :rofl: ), maybe you can use it as your default clock.

Good luck.

[Rob94hawk]

Bedroom ambient temp was 10°C (thermo sitting on desktop right beside open window) and outside air was a chilly 0°C. Last time I did 4GHz on Orthos my ambient temp was 20°C and my CPU nudged 65°C for a couple of seconds before sitting happily at 62°C.

So what should I do? Should I try Orthos for longer and then just leave my system at 4GHz 24/7? Or should I just accept that this is a nice achievement for my PC and settle for a lower clock speed with lower voltages?

Cheerz. :up:

Nice OC!

Definetly lower your clock speed. You can't leave your windows open all the time.LOL

Seeing your OC's I'm going to push my votages a bit more.

[kitfit1]

Nice clock on air, with nice voltages as well. Congrat's to you man.

[LennyRhys]

Thanks very much. I've tried booting at 4200MHz but my memory is having none of it - it can't hack 1050MHz even at 2.25v with 5-7-7-19 timings. I'm gonna save up for some nice memory, and at the moment I'm leaning towards OCZ Reaper PC2-9200 because it's so cheap.

[aoch88]

Great temps I would say :)
What does those Reaper's carry? Also D9 microns?

[Spyrus]

If you can hold core temps under 70oC you can go higher.
I am also priming with 1.47@4GHz good work bro.

[LennyRhys]

At the moment I'm using 3.6GHz@ 1.375v just for the sake of my memory and temps. 4GHz under 1.5v is very nice, like I said before. :up:

And I believe the Reapers carry D9 microns, yes.