8-Pack Z77X-UD3H help

Tackle_Berry · 5 Mar 2013 at 09:33

Hey, hope you may be able to help me.

I am trying to get my 2500k and Z77X-UD3H board up to 4.4ghz (was a ocuk bundle with 4.4ghz but updated bios and lost the settings) I have tried just upping the multipler with 44 and everything else set to auto including the Vcore, but when running Prime95 within a few minutes i sore the Vcore go up to 1.54 from 1.35 which I know the 2500k shouldn't go past 1.4 so I stopped Prime 95 right away.

I then tried setting the Vcore manually to 1.35v but within seconds of starting Prime 95 it crashes. So I thought I would try doing multipler of 42 with auto Vcore which gave me 1.320v and that runs stable in Prime 95 with temps of around 56c I then tried setting the Vcore maunally to 1.320v to see if that would crash the same as setting the vcore maunally with x44, but again the second I turn Prime 95 on it crashes.

I have tried each time with the memory profile set to XMP Profile 1 and again with it on default. Just incase that had something to do with it.

Any ideas on what I should try next?

System Spec:

z77x-ud3h
2500k
H100i
Corsair HX850
Kinston HyperX Grey Genesis 4GB x 2

8 Pack · 5 Mar 2013 at 23:02

Hey man dont try to fix whats not broken!!! If your system is stable and you dont need teh features dont update bios.

I woudl try a full CMOS reset with the battery out first. Then set XMP and test the RAM making sure the new Bios is not setting any timings incorrectly. Then you can get onto clocking it.

Tackle_Berry · 6 Mar 2013 at 09:01

8 Pack said:
Hey man dont try to fix whats not broken!!! If your system is stable and you dont need teh features dont update bios.

Unfortunately was having boot issues with Bootmgr missing errors, so had to update for a fix.

Thanks will give that a try tonight, just strange when i match the the auto vcore with a manual one I get a crash.

8 Pack · 6 Mar 2013 at 11:30

No its not because auto if offset so its continually changing. You are never with manual getting an exact match.

Also to ensure a true match of Vcore you should measure via voltmeter and not software.

Maybe try setting IMC volts too from auto to 1.05v this helped another user I was assisting. Auto seems to set 0.95v which is too low.

Tackle_Berry · 6 Mar 2013 at 20:47

That done the trick thanks, running 4.4ghz at 1.35V with IMC at 1.05v. I had to manually change ram timings to 9-9-9-27 with DRAM of 1.60v as the auto xmp1 was out. Load temps of around 61.

8 Pack · 8 Mar 2013 at 22:21

I have seen this before with this board. Its IMC too low again being the problem. Gigabyte are working on a fix for this one.

Tackle_Berry · 8 May 2013 at 10:47

Hi, sorry to bring up an old thread but hoping you can help. I am now running a custom loop now and was hoping to push this cpu further. This did run 4.6 on air when it came from ocuk as a bundle. It is now running 4.4 with your recommended settings. I have tried 4.6 but it just BSOD as soon as I get to desktop. Can the IMC go up anymore then what you recommended for 4.4?

As for temps, not run a prime 95 but I can currently play hours of BF3 (only game I play) and it never goes over 58c @ 4.4ghz with the fans on low

8 Pack · 8 May 2013 at 16:26

IMC can go upto 1.25v no problem usually with Sandy you find more than 1.15v makes little difference.

Tackle_Berry · 8 May 2013 at 16:32

Thanks, so do you reckon I should just turn the IMC up to 1.15 and then start trying to get more out of it or go up slowly from 1.05v, because at the moment even with a higher voltage I can't get it stable at more then 4.4

wazza300 · 8 May 2013 at 16:34

what level loadline calibration are you using? too high will overvolt the cpu

so maybe set to medium or high for 4.4/4.5ghz

oh and setting vcore voltage response to fast and pwm phase control to extreme will help

Tackle_Berry · 8 May 2013 at 16:38

Will have to check when I get home but my guess is auto. I was hoping to get around 4.6 to 4.8ghz out of it would you still recommend med/high?

wazza300 · 8 May 2013 at 16:39

depends how much it droops under load

but high/turbo is good enough for 4.6ghz

Tackle_Berry · 8 May 2013 at 16:42

Thanks I will take a look. Shame teamviewer doesn't work in BIOS could just send some money your way Wazza and leave you to it lol.

wazza300 · 8 May 2013 at 16:45

its fine just try and find the right llc setting that keeps you stable with the lowest volts possible

Tackle_Berry · 8 May 2013 at 16:47

wazza300 said:
oh and setting vcore voltage response to fast and pwm phase control to extreme will help

Cheers, I am the guy who had the motherboard issues in another thread which you helped me with (can't get the PWM phase setting to change).

wazza300 · 8 May 2013 at 17:01

ohh yeah,

it could be down to you using a sandybridge cpu in a z77 board,ive seen a few issues regarding that ,could be bios idk

Tackle_Berry · 8 May 2013 at 19:40

So trying to play around now, I have PWM to exm perf? Typed in extreme and it changed to this (cant press enter and click a option) I have left voltage response to auto as mentioned I can't change it. With the load line calibration is it Vcore or CPU vtt loadline that needs changing?

wazza300 · 8 May 2013 at 19:47

vcore

Tackle_Berry · 8 May 2013 at 19:57

Ok so tried the following and BSOD the second I pressed test in Prime 95. With that voltage I am not going to be able to go any further then 4.4 am I? Which is strange when this CPU once ran at 4.6 on a different board.

X45 ratio
Thermal monitor disabled
PWM phase: exm perf
Vcore 1.37
CPU VTT: 1.100
Load line set to: standard

Memory
DRAM: 1.600V
Memory profile: Profile 1
Performance enhance: turbo
Dram timing selectable: quick

Channel A Timings: 9 9 9 27
Channel B Timings: these are set to auto and greyed out is this right?

Everything else was on auto

wazza300 · 8 May 2013 at 20:24

I think it could be BIOS that's limiting you because of 2500k CPU on a gigabyte z77,

Channel b is normal because you used quick timings which sets the same for both channels