1st 4770k that cant be overclocked!

Cheers Nickolp

Cmos cleared PROPERLY
Where is RAM xmp mode? (I have a Asus Z87-K) I dont think it has a XMP mode?
All set to default!
1.2V at the min by CPU-z under load 1.1V idle
 
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You do have XMP mode, it comes up when you set the AI Overclock tuner to XMP. My board doesn't like the ram set to XMP with any of the ram i have tried in it.

Actually it's not a lot of point in giving you settings for 4.4ghz when you can't get any clock at all stable.

Take some pictures of your AI tweaker menu and post them up here so we can have a look at them.
 
pastymuncher said:
You do have XMP mode, it comes up when you set the AI Overclock tuner to XMP. My board doesn't like the ram set to XMP with any of the ram i have tried in it.

Actually it's not a lot of point in giving you settings for 4.4ghz when you can't get any clock at all stable.

Take some pictures of your AI tweaker menu and post them up here so we can have a look at them.
Click to expand...

AI overclock only has Auto or Manual:confused:

Will go grab photo's in a min. Thanks for this guys.
 
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Any chance of a link to the particular ram your using, may have to input the speed, timings and voltage manually if it doesnt support XMP.
 
setter said:
Any chance of a link to the particular ram your using, may have to input the speed, timings and voltage manually if it doesnt support XMP.
Click to expand...

^^this

does it say anything on the sticks?? timings, voltage?? have you a link to them??

also a pic of your main voltages would be good
 
Your bios is the same as mine. Got to go now but tomorrow morning i will post up what i have mine set to. Maybe it will give you a baseline to work from.
 
Righty then, here are my settings for 4.4ghz. It will either work or it won't.

AI Tweaker menu

AI Overclock Tuner - Manual
CPU Strap - 100mhz
PLL Selection - LC PLL
Filter PLL - Low BCLK Mode
BCLK Frequency - 100.0
Initial BCLK Frequency - Auto
Asus Multicore Enhancement - Auto
CPU Core Ratio - Sync All Cores
1x Core Ratio Limit - 44 (this sets the same for the other cores)
Min CPU Cache Ratio - 8x (might want to leave this alone until the cpu is stable)
Max CPU Cache Ratio - 44x (might want to leave this alone until the cpu is stable)
Internal PLL Pvervoltage - Auto
BCLK Frequency : DRAM Frequency Ratio - Auto
Dram Frequency - Set to whatever speed your ram is, 1333mhz in your case.
OC Tuner - As Is
EPU Power Saving Mode - Enabled
Dram Timing Control - enter your first 4 timings in the first four entries

Digi VRM+

CPU Loadline Calibration - Auto
CPU Voltage Frequency - Auto
VRM Spread Spectrum - Disabled
Active Frequency Mode - Disabled
CPU Power Phase Control - Auto
CPU Power Duty Control - T.Probe
CPU Current Capability - Auto
CPU Power Thermal Control - 130

CPU Power Management

Enhanced Intel Speedstep Technology - Enabled
Turbo Mode - Enabled
Set everything else to Auto

Extreme Overvoltage - Disabled
CPU Core Voltage - Manual Mode
CPU Core Voltage Override - 1.265v
CPU Cache Voltage - Manual Mode (might want to leave this alone until the cpu is stable)
CPU Cache Voltage Override - 1.30v (might want to leave this alone until the cpu is stable)
Everything else down to CPU Input Voltage set to Auto.
CPU Input Voltage - 1.900v (mine actually needs this much but you may get away with 1.700v)
DRAM Voltage - Set to whatever your ram needs
Everything else set to Auto

Reboot, hope and pray. :D
 
Great post Pastymuncher.

I've managed to get mine stable at 45/43 core/uncore for now, IBT max stable for 10 passes (max temp 80, usually mid-70s). Doesn't like 45/45 though...

I had real issues getting anywhere to begin with- mainly due to the **** BIOS my board came with. Since flashing I'm getting some good results.

Can't argue with the settings above, but I will add that I went LLC to Extreme, PWM phase control to Extreme, and System Agent voltage (VCCSA) got a +0.250v offset.
Sys Agent seems fairly important for a stable OC on Haswell- it was about the last thing I changed and I couldn't get stable otherwise. Maybe that's just my experience though.

Will keep an eye here, and chip in if I think I can help...
 
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Mine was just a quick and dirty overclock that worked. Normal daily clock is 4.5ghz with a extra notch of vcore. I just posted the above settings to try to get him started. To get 45/45 is why i run the cache voltage at 1.30v. I came from a i5 760 in a Asus P7P55D-E Pro which was very similar to socket 775 for clocking. The Haswell boards have lots of settings that i had never seen before and i still don't know what some of them do. I can get to 4.8Ghz for benching but it takes a lot of vcore for that. I was meaning to take the memory to 2400mhz but i don't really want to lose my tight timings, plus i would rather be enjoying my pc than messing around with settings again.

What board are you running Dougal?
 
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Done those settings and used 43 on sync all cores. In windows fine, will play about and see if stays stable. It goes to 76C on 1 core, not stress testing but using hard.
 
Did you take a note of vcore from CPU-z as that's vcore related

What cooler are you using?

You may for your chip need more loadline Cal. Try setting that to high instead of auto
 
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CPU-z 1.263V
Its a Noctua 14 with 2 fans. Goes to 78C with folding on 6 threads
Changed LLC to High which is 50% that ok? Or go higher?
Been stable like that for over an hour while doing dissertation! Will let fold while I go to Dr's see how it goes! Great bit of advice that LLC it seems Nick!
 
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