[Sinlok]

I've been trying since I got this chip a couple months ago to push it to 5ghz and I've been afraid to push anything over 1.4 vcc up until a bunch of recent discussions on max safe voltages and the fact that there's plenty of people in the 5ghz club at 1.47+ vcc with out killing their chips.

My latest attempt has me running with these settings
BCLK 100
Multiplier 50
Internal PLL overvoltage enabled
memory 800mhz @ 1.5v
EPU disabled
C1,5,6, EIST, HT disabled
LLC Extreme
vrm auto
phase extreme
duty control extreme
VCC 1.485

all other voltages at auto

When I run prime or linx/avx at these settings it with 1.48 VCC it fails at the current 1.485 it reboots my system. I was thinking it might be the power limit so I tried enabling EIST and setting the short+long current limits to 255. No change. I've also tried changing the VRM to 350 with no change.

 

[badatgames18]

up your vcore... some chips, unfortunately need 1.5v for 5ghz (this is vcore at load btw)

EDIT: oh sometimes you will need to increase qpi for stability, if you get a bsod with 00124
i had mine stable at 5ghz @ 1.45v with 1600mhz ram (ibt and prime95 blend)
then i overclocked my ram to 1872 and bam... unstable... i had to reduce my overclock by 100mhz to be fully stable and increase my qpi

 

[Ipwnnubletz]

Well first, not every 2600K chip is "guaranteed" for a 5.0GHz overclock. You are guaranteed a 3.4GHz setting and an unlocked multiplier.

Overclocking Sandy Bridge is basically raising a multiplier and raising the vcore. If you're not stable at high vcores, there's a chance that the chip just won't operate at 5.0GHz.

 

[munaim1]

VCCSA Voltage: Auto it's advised not to touch that one
VCCIO Voltage: Auto for now
CPU PLL Voltage: 1.75v
Auto PLL Overvoltage: Enabled
PCH Voltage: Auto
VRM Frequency: 350
Duty Control: Extreme
Phase Control: Extreme
Digi + VRM Current Capability: Auto - 100%
CPU Multi 50 by each core
CPU BCLK: 100 sb doesn't like changes in bclk
CPU voltage: Start at 1.45v Manual or 1.5v (depending on your cooling)
DDR Voltage: Rated stock volts
Spread Spectrum: Disabled
LLC: High or Ultra High (check which one works better for vdroop)

Test those with an hour of blend each time and reduce or up vcore when bsod.

EDIT: keep the power saving featues on (doesnt effect overclock, well not for me anyways)

Quote:

Originally Posted by coolhandluke41 I think this may be helpful for some of you,found this on XS The OverClockers BSOD code list BSOD codes for overclocking 0x101 = increase vcore 0x124 = increase/decrease vcore or QPI/VTT...have to test to see which one it is 0x0A = unstable RAM/IMC, increase QPI first, if that doesn't work increase vcore 0x1E = increase vcore 0x3B = increase vcore 0x3D = increase vcore 0xD1 = QPI/VTT, increase/decrease as necessary, can also be unstable Ram, raise Ram voltage 0x9C = QPI/VTT most likely, but increasing vcore has helped in some instances 0x50 = RAM timings/Frequency or uncore multi unstable, increase RAM voltage or adjust QPI/VTT, or lower uncore if you're higher than 2x 0x109 = Not enough or too Much memory voltage 0x116 = Low IOH (NB) voltage, GPU issue (most common when running multi-GPU/overclocking GPU) 0x7E = Corrupted OS file, possibly from overclocking. Run sfc /scannow and chkdsk /r and for all of you with GB mobos you should read this; http://www.overclock.net/intel-gener...uide-p67a.html

 

[Sinlok]

I finally got it solved this is what I ended up with.

BCLK 100
Multiplier 50
Internal PLL overvoltage enabled
memory 800mhz @ 1.5v
EPU disabled
C1,5,6, EIST, HT disabled
LLC Extreme
vrm auto
phase extreme
duty control extreme
VCC 1.505

and increasing my vccio to 1.06875.

The temps are fine but the vcc is just too high for me on a 24/7 rig. But thanks for helping me find where I needed to push my chip. I'm wondering if anyone here has had to play with their vccio? I got the idea from an FAQ somewhere else but I hadn't seen much mention of it on these forums.

 

[phaseshift]

did you follow this guide

http://www.xtremesystems.org/forums/...d.php?t=265398

?

I'm running 5.0ghz 1.408 vcore 2hour prime blend test right now

 

[Sinlok]

http://www.clunk.org.uk/forums/overc...tml#post110904

He doesn't give any values to adjust to just step up until you get stability. I did look to intel's spec sheet to get an idea of what would be safe. They said 2-3% overstock but it didn't have a base value so I assume it's something set per chip at the factory like vcid.

 

[Antistatic12]

Remember a good PSU and mobo can mean the difference between 4.9 and hitting 5GHz.
Aswell as a good chip and right vcore ofcourse.

Always something to keep in mind.