Intel Haswell Overclocking Clubhouse.

[Nordic]

So I spent most of last night many different combination of voltages. 4.3ghz is my highest stable. I am fine with that. Maybe with a bios update I might get lucky. Time to see how low of volts I need for 4.3ghz.
I was trying to do PER CORE overclocking to hopefully get a few more MHz on fewer cores. I noticed I am always running at my 4core ratio. Even when idleing it does not drop down below the 4core ratio.


Ooh wait. I got 4.4ghz at 1.28v using manual instead of xmp.

 

[TheHunter]

My current settings with a little lower volts, still stable..


I tried ram at 9-10-10-27-1T but it hardreset in RE5 dx9 benchmark -3rd test,

9-11-10-27-1T looks the limit at 2200mhz and tWCL 8-9.

 

[Nordic]

These settings for 4.4ghz seem stable. I just gamed for about 4 hours, and they passed aida stress for about 3 before I decided to game. I added my cpu usage to further show that it isn't downclocking during idle.

4.3ghz needs ~1.27v. Stock volts were 1.04v. Temps are definitely no concern with my custom water.

 

[HammerON]

I run mine @ 4.4GHz w/ 1.22v. Your chip seems to require quite a bit more...
I guess it is all good if your temps are fine. Are you overclocking through the bios or through the ASUS software? I like to stick to the bios, but that is just my preference.
Glad you got it stable. I thought I was stable at 4.4 and 1.2v, but after two days of running WCG my system would freeze up. Moving to 1.22v has fixed that.

 

[Nordic]

I am overclocking through bios. AiSuiteIII just conveniently shows all my voltages in an easy to screenshot manner. I honestly keep it off.

I am going to wait a week and see how stability is over a longer run. Then I will install boinc->WCG.

 

[LiveOrDie]

Hey guys should i be changing my Cache voltage im @ 4.4Ghz with 1.15v on adaptive i ran intels Intel Processor Diagnostic Tool and temps didn't go over 60c .

 

[Shou Miko]

i am still battling with my i5-4670k sometimes it runs for weeks no problems, gaming, encoding and more, and other times it just BSOD which is annoying, i have tested Aida64 FPU Stress test no crash, and for now i has run for 1week and 4hours, last reboot was bcs of Windows 7 update.

but more and more i believe i need a reinstall, but that i dunno when will be bcs i got soo much i need to install again then and i am not sure if everything will run in Windows 8.1.

 

[kalixaq]

Uhm, looking at your values, I must be doing something awefuly wrong.

CPU 4670K boots into windows even with 1.2V @4.6Ghz "BUT" running stress tests, I allways end up with BSOD.

Step by step I tried increasing VCORE upto 1.40V (Don't panic cooling is not an issue) and still it BSOD on me around 30-40 minutes into the stress test. Using Intel Extreme Tuning utility to stress test btw.

Things I tried - with no success.
Increase CPU input voltage to 2.0V
Decrease CPU Cache speed (Ringbus) to 3.0Ghz
Underclock DRAM to 1333Mhz

I'm really running out of ideas and I am tempted find one of those guys who run 4.6Ghz @ 1.2V and scream my frustration..

 

[TheHunter]

Hi,

Hm, what mobo and ram do you have? Did you test ram sticks in memtest/ windows memory diagnostic?




Well here is a funny one, with my values above (a little higher PCH and PCH VLX voltage) I was able to lower 4.6GHZ voltage as well.. Use to run at 1.235V,
now

(real in bios 1.230v, cache @ 4.3Ghz - adaptive 1.139v)

 

[kalixaq]

Asus Gryphon Z87

 

[TheHunter]

I've read about your mobo that it can act a little funny.. Or was it in one review idk, but I think remembered a few recommendations


Try this,

in AI Tweaker make sure that input voltage is at least 1.79v - leave both at auto for now and disable cpu spread spectrum (below at end)

in DIGI+ set LLC to 5, cpu 130%, phase optimized, vrm spread spectrum disabled.

in cpu section disable vrm fault check.

*leave cache alone, both values at auto and its voltage also.

*in memory timing section manually put in your main XMP timings, also if its 1.65v then set to 1.65v



Ps, when you said 1.20v bsod, from my experience another 0.05v (1.25v) always did the trick, if not then another 0.03v.

 

[kalixaq]

in AI Tweaker make sure that input voltage is at least 1.79v

is this CPU input voltage? If so I have it at 2.0 at the moment, I'll try your suggestions and report back.

 

[kalixaq]

in DIGI set LLC to 5, cpu 130%, phase optimized, vrm spread spectrum disabled.

also what is that "cpu 130%" mean? is that a setting in DIGI?

 

[Kursah]

The power thermal control value iirc is what TheHunter is referring to kalixaq.

 

[TheHunter]

also what is that "cpu 130%" mean? is that a setting in DIGI?

Ah sorry guess I should have been more clear, yes in DIGI+ cpu current capability 130% and by thermal control 130 if not already.


And yes I meant that cpu input voltage 1.79v (2.0v by you). Set both at auto (SVID and its value).

 

[kalixaq]

well thank you very much!

I did not wait for the answer for "cpu current capability" and started a stress test with the other values that is:
LLC = 5,
phase optimized,
vrm spread spectrum disabled
vrm fault check disabled

I am running at VCore 1.37V for more than an hour now all stable temperatures around 65-75C

So one of those above values fixed my issue.
In the end, it is very uncanny that I can run 4.4Ghz @ 1.23V and need 1.37V for just 200Mhz boost. I guess I will get it running smooth and stable save my settings for boasting rights whenever asked, and run the system on 4.4Ghz @ 1.23V settings on the longer term.

Does not worth the TDP increase for 200Mhz I guess.

 

[Nordic]

I find it funny that my 4770k runs about 10c cooler than my 2500k. 4.4ghz 1.305v @ 55c vs 4.5ghz 1.35v at 65c.

 

[petedread]

Yeah that happens with Haswel, cpu reaches a certain point then needs a big jump in volts to get higher clock.
I found that tinkering with system agent, cpu digital and cpu analogue IO helped with stability especially at higher memory frequency's. +230, +240 +240. I'm in the process of lowering these though. Also I used turbo for the channel A/B current protection ect.

 

[LiveOrDie]

These settings for 4.4ghz seem stable. I just gamed for about 4 hours, and they passed aida stress for about 3 before I decided to game. I added my cpu usage to further show that it isn't downclocking during idle.

http://img.techpowerup.org/131024/cpuz.png

4.3ghz needs ~1.27v. Stock volts were 1.04v. Temps are definitely no concern with my custom water.

I'm running my CPU at 4.4Ghz on 1.8v adaptive 2400Mhz ram my temps after 5 minutes in prime where around 85c is that to high im thinking of adding two more fans to my H100i ?

 

[TheHunter]

I'm running my CPU at 4.4Ghz on 1.8v adaptive 2400Mhz ram my temps after 5 minutes in prime where around 85c is that to high im thinking of adding two more fans to my H100i ?

Dont use adaptive cpu voltage and run Prime95 etc it will use much higher voltage - at least 0.07v higher.. Use fixed voltage until you find your 100% voltage, then move back to adaptive voltage.


Btw what is that 4.4Ghz, 1.18v?



EDIT: NEW bios is out for most Asus Z87 boards

Z87-DELUXE BIOS 1504
1 Enhance compatibility with some USB device.
2.Revise help string in BIOS.

 

[riedlZ]

I think I got a really bad Chip

For 41/39 I need 1.20v. For 42/40 1.26v. And 43+/XX is NEVER stable. I tried so many different settings, C-States on/off, PLL on/off, 1600MHz/2600MHz RAM and so on. Everytime 0x124. With my "stable" 42/40 1.26v I reach 82°C on Intel Burn Test with my Noctua NH-D14 and Phobya Liquid Metal Thermal Paste in a HAF 912 Plus with good Airflow.

System:
CPU: i5-4670k
MB: AsRock Z87 Pro3
RAM: G-Skill 2x4GB CL10-12-12-31-2N @2600MHz
GPU: GTX 780
PS: Corsair CX600
OS: Windows 8.1

Has anybody some magic for me?

 

[TheHunter]

Intel Burn Test will make it hot especially over 1.27v, doesnt matter if you have 3.5ghz or 5ghz. Something happens inside the chip by ~ 1.27v and then it starts to heat up abnormally.. Or could be just my water cooler fault, I saw it should handle up to ~ 1.275v anything more and it needs H110/custom water..


I wouldnt want to test such burnin apps., intel doesnt recommend it either.. Use intel's own Xtreme tuning utility.


All these tests will push your cpu temperature to the max. (worst case scenarios), nvm IBT, Prime95, Linx - these tools are like Furmark for gpu uberkill never going to happen

-Cinebench11.5, 15
- X264 HD benchmark
- Fritz_Chess_Benchmark
- wprime 2.10 - 1024mb test
-any video encoding sw using x264 codec
- LostPlanet2 benchmark - Test2 dx11 @ 720p, no aa, dx11 fx - low; and for those with 8thread cpu in cfg my documents/capcom/LP2 benchmark (set job thread 8 instead of 4).

 

[d1nky]

TPUs bench competition starts soon, hope to see some names on the stages

http://www.techpowerup.com/forums/showthread.php?t=191333

 

[freaksavior]

Pretty sure i've got a shitty CPU

I haven't played with it much more than this, I tried 46x100 and 1.25 and it will boot but any load crashes immediately.

 

[Nordic]

Pretty sure i've got a shitty CPU

I haven't played with it much more than this, I tried 46x100 and 1.25 and it will boot but any load crashes immediately.

http://i.imgur.com/7O58AOG.png

At least yours boots at 4.6