[Official] The Sandy Stable Club **Guides, Voltages, Temps & BIOS Templates** Inc SPREADSHEET - Page 954

The highest voltage on there is 1.536 :/ is that really ok?

Hey guys, some help with offset ocing on my 2500k. Water cooled with xspc kit, temps are a-ok.

My system is:
Asus M4E
8Gb Corsair Plats

I finally got my cpu to 4.6 stable using offset at a respectable 1.376 vcore. I took some time getting there. Now, I tried getting my 2500k to 5 gigs, but so far I get only blue screens or freezes.

I am using this guide, which netted me my 4.6 stable. I am using +.005 for that oc.

Things got tricky with 5GHz. I was able to boot into windows with offset on auto, but that gave me a 1.66 on vcore, which is not optimal, to say the least. I then managed to boot into windows with offset on +.100 (from +.005) but that also gave me bsod on prime95. With that setting (and pll volt on 1.852), cpuz showed 1.51 on load before crashing. LLC is on 75%.

The other weird thing is that at one point, while setting offset to +.080 cpuz would show 1.45, while +.070 shows 1.47...

What can I do to try and stabilize this oc, or is it the max my cpu can handle?

1.536 isn't going to make for a chip that is going to last very long. There are a myriad of opinions on what safe voltages are you can read all the info and make your own decision.

Read the first post it should have all the info you need. Start small, see what your chip will do on stock voltage, get that stable and go from there.


5.0 is going to need a lot of voltage and 4.6 may be the wall where you need a lot more vcore to get over it. Maybe try to find a 4.8 stable setting and see what those voltages are like before pushing all the way to 5.0.

I wonder if anyone here can help me (probably someone else using a Gigabyte Z68 board with a Sandy chip)

A little while ago my chip became unstable at 4.5GHz (1.3V) so I dropped back to stock as I didn't have time to find a more stable overclock (didn't want to simply increase Vcore, since the temps were about as high as I wanted already). Now recently I've been trying to overclock again, with an aim of at least 4.4GHz.

I've been using manual voltage to work out what voltage I want, and last night passed 12 hours of Prime95 Blend at 4.4GHz with the voltage at 1.284V under load. That was with it set to 1.300 in BIOS, and level 4 LLC.

Now, I tried switching to offset voltage so that I don't have my CPU running at 1.3V+ when it's sitting idle. I disabled C3/C6 and set the offset to 0 (bear in mind that Gigabyte Z68 boards don't support LLC and offset voltage at the same time), Windows wouldn't boot. I found an old post of mine saying that -0.1V at 4.5GHz gave me 1.3V under load, Windows wouldn't boot. I basically got a black screen after the loading screen, sometimes the loading screen wouldn't actually complete, sometimes I would get a BSoD, basically I couldn't get into Windows.

So I tried +0.1V as +0.08 was stable earlier at 4GHz. I booted into the Windows desktop, the CPU was running at 4.4GHz constantly under idle and the voltage was pretty high. As soon as I started Prime95, it crashed. Now it does this whatever setting I choose.

How the hell do I get offset voltage working on this motherboard?

EDIT: Okay, I've tried going DOWN with the voltage and so far I've tried -0.12, -0.155, and -0.175. Each one has given me 0.996 lowest at idle, going up to about 1.05 or higher, and then 1.320V under load. How can each of these settings result in exactly the same voltages at idle and under load?
Edited by Ellis - 11/13/12 at 8:51am

Please help the dude above me first^

And for my situation:

My current setting are as follows: 2500k, asus m4e, corsair plats 2133.

Ai Tuner - Manual (x48)
DRAM Freq - 2133

Digi+ VRM
Vcore PWM - Extreme
LLC - 75%
Vcore Switch Freq - Manual (350)
Vcore Phase Control - Manual (Fast)
Vcore Overcurrent - 140%

Offset Mode (+0.080)
DRAM Volt - 1.51
CPU PLL - 1.799

With these settings I managed to pass six hours of prime95 before it (apperantly) crashed my pc.
I didn't connect it before, but is the fact that my ram is working at 2133 affect my oc in some way? What about my voltages?
If I try to test at 5GHz, than prime95 crashes quickly - and this is with +0.110. I think it's already very high, but acceptable for me to ran at 4.8GHz.

What more can I try? I can't stop here, it goes against my nature. Ofcourse, impossible is impossible.

@heavy -Bump vccio up to 1.1v
Try dropping pll to, 1.71v

Is that for trying to make the 4.8 oc more stable? I'll try it out. Any tips for trying for 5Gees?

Thanks!

Yes, but increase what in small steps? I don't really have an idea what vccio or pll does...

My main issue is that it seems that I need higher than 1.51 on vcore to even start thinking about it. If that is the case than that is the case, and I can do nothing about it. Looking at the table in the op, no one passes 1.5. I'll try to stabilize 4.8 first, than up vcore more to have a look at 5Gees.

Thanks.

You first put everything on default and then you start pushing up multiplier for the CPU and when it fails to load or during some test you raise the vCore slowly. You can start from 1.25v for example.. You need to check by yourself what is optimal voltage for your CPU clocks with this method or something similar....There are a lot of Tutorials out here on OCN.

@munaim1
You still haven't updated the sheet with my latest submission ?