show your sandy bridge 24/7 clocks and volts

Bos · 28 Jun 2011 at 18:48

whipgeez said:
yeah i assumed it was a bit iffy from the start
tempted to go for that 5ghz you got there but bit worried it may need pretty high volts

There's a good chance you may need more volts.
I've seen another 1 or 2 people that had 2500k's @ 5Ghz with very low ~ 1.32 - 1.33 volts.
There's a guy over on the XS forums that linked his 2500k running Prime95 @ 5Ghz with only 1.28v & 5.2Ghz @ 1.352v :eek:

....damn sweet cpu that one.

whipgeez · 28 Jun 2011 at 18:52

Bos said:
There's a good chance you may need more volts.
I've seen another 1 or 2 people that had 2500k's @ 5Ghz with very low ~ 1.32 - 1.33 volts.
There's a guy over on the XS forums that linked his 2500k running Prime95 @ 5Ghz with only 1.28v & 5.2Ghz @ 1.32v ....damn sweet cpu that one.

i just want to get to windows really

i might just try 50x with an offset of +0.005 and work uip till boots

1kiwi · 28 Jun 2011 at 18:56

Bos said:
There's a good chance you may need more volts.
I've seen another 1 or 2 people that had 2500k's @ 5Ghz with very low ~ 1.32 - 1.33 volts.
There's a guy over on the XS forums that linked his 2500k running Prime95 @ 5Ghz with only 1.28v & 5.2Ghz @ 1.32v ....damn sweet cpu that one.

That's just awesome. Are you able to run blend at the same volts? I wonder if Sandybridge E will clock that well?

Bos · 28 Jun 2011 at 19:13

I ran P95 blend on this overclock for about 4 hours when I first did it.
Been 100% stable for the last 3 months or so with a fair bit of gaming/encoding etc.

whipgeez · 28 Jun 2011 at 20:09

i just tried asus auto tune from default settings to see how it is and it got 4.5ghz with only the equivilant of a 0.005 difference in offset to what i got it stable at

thats pretty impressive

Bos · 28 Jun 2011 at 20:25

Yeah it is pretty good.

I once enabled PLL Overvoltage then ran auto tuning Extreme to see what it would do.
Went downstaire to make a brew and when I got back it was at 5.3Ghz with 90c temps lol.

whipgeez · 28 Jun 2011 at 20:39

i couldn't get it to boot at 5ghz, i would have been about 1.42 i was using and it just hung on windows login

koooowweeee · 28 Jun 2011 at 21:17

Most chips need 1.45 or more for 5ghz

some people are just lucky and can do it with lower

bulldog147 · 28 Jun 2011 at 22:58

Not really bothered about 5GHz, just be happy what you got 4.6-4.8GHz will be more than enough! Why 5GHz for ?

I like this new software (for hardware monitor) far better than hwmonitor here: http://openhardwaremonitor.org/

Captain Chaos · 29 Jun 2011 at 09:11

I think im going to have to wind my OC back a bit. Far too warm in my computer room lol. Think I may of lost a stone in weight over the past couple ov days haha

artus · 29 Jun 2011 at 17:33

So far this is what I have brand new build, not sure if the voltage is slightly to high and temps arent really accurate at the moment as the sides are off but its out the kitchen which is the hottest room in the house

Justintime · 29 Jun 2011 at 17:52

4.8Ghz 1.39v, 2600K on Asrock P67 Pro3. Cooled by a Noctua NH-D14.

paradisiac · 29 Jun 2011 at 17:53

Justintime said:
4.8Ghz 1.39v, 2600K on Asrock P67 Pro3. Cooled by a Noctua NH-D14.

not sure how the p67-pro and the z68-extreme compare in bios, but any settings advice as i have just used the auto oc feature in the bios as the voltage settings look nothing like i had on my old amd system.

Justintime · 29 Jun 2011 at 18:07

Hi, still messing with it but all i've literally done is set my cpu and Dram voltages (1.39v and 1.55v) Ratio set to manual and short and long duration set to 200.

bulldog147 · 29 Jun 2011 at 20:51

Justintime said:
short and long duration set to 200.

U put 200 on short and long duration - Is it to do with Turbo Power Limit (Watts) and Core Current Limit (Amps) both set at 200 instead of Auto ?

Justintime · 29 Jun 2011 at 21:35

Yes sorry. I've got all 3 settings to 200. The Turbo boost power long and short and the core current limit. I think the turbo default is 150 and 95?

bulldog147 · 29 Jun 2011 at 21:42

I don't know why you put 200 on it, I leave mine at Auto. It default at 95 (Watts) and 97 (Amps) on my bios setting.

Phenomenologica · 8 Jul 2011 at 13:53

Time to resurrect this one! After playing around a lot I've got mine stable at 4.8Ghz at 1.356V indicated in CPU-Z. The playing around was so I could use the voltage offset function, I was tired of it running 24/7 at a high voltage when lots of the time I'm just browsing the internet and word processing, waste of energy and probably not great for the chip. So far it seems to be working well, during normal idle usage it sits at 1.6Ghz and a little under 1V, then clocks to 4.8 at 1.356 when needed. Had to set the offset fairly high in the BIOS and disable LLC, but from what I can glean that won't be an issue as it's the actual voltage the CPU receives that matters rather than what it's set to. Feel free to correct me if I'm killing something.

bulldog147 · 8 Jul 2011 at 13:58

Phenomenologica said:
Time to resurrect this one! After playing around a lot I've got mine stable at 4.8Ghz at 1.356V indicated in CPU-Z. The playing around was so I could use the voltage offset function, I was tired of it running 24/7 at a high voltage when lots of the time I'm just browsing the internet and word processing, waste of energy and probably not great for the chip. So far it seems to be working well, during normal idle usage it sits at 1.6Ghz and a little under 1V, then clocks to 4.8 at 1.356 when needed. Had to set the offset fairly high in the BIOS and disable LLC, but from what I can glean that won't be an issue as it's the actual voltage the CPU receives that matters rather than what it's set to. Feel free to correct me if I'm killing something.

What is offset ? Is there any of it in my board Z68X UD4 B3 as I cannot see any of it there ?

Phenomenologica · 8 Jul 2011 at 14:05

Mines a Gigabyte too with an old style blue BIOS, I have to set the voltage box to 'Normal' at the very very top of the list of voltages, and then the box underneath for offset becomes available. Be warned though, on mine it was disgustingly picky and I had to remove LLC and use a positive offset, as LLC on with a negative offset just gave me BSODs. However IMO the effort was worth it as my idle power consumption and temperature will have dropped and I was never comfortable with such a high 24/7 voltage. I much prefer to let it downvolt when it isn't being used.