i7 4770k OC

A stable 4.3Ghz @ 1.215 is more than ok, I would be extremely happy with that. You have so much more headroom when it comes to voltages if you have a good cooler.

On mine 4.2Ghz was stable at 1.275, at its current clock of 4.4Ghz I am rocking a 1.32 VCore. Still within all the limits required and my temps get to mid 60's when playing BF4 at Ultra settings 4xMSAA for about 4 hours with the max recorded temp in that time to 71.

Just use the PC normally and don't annihilate it with IBT/Prime for ages. I used AIDA when I was learning about overclocking. Since then I have just been fiddling and running the PC as normal with the only stability issues arising when updating graphics drivers revealed a poor O/C.
 
4.3GHz at 1.215V failed stop 124 on real bench! Tried a number of voltages! Now attempting 4.3GHz at 1.275V running real bench! Temps settling at around 70oC! God this is a tricky over clock!
 
A 60mv increase is quite a jump IMO. I wouldn't bump it that much unless you were so unstable you couldn't even boot windows. I'd usually give it 15 - 20mv then try again if it's just a 124 BSOD while stressing it. Unless you're desperate to have it stable right now.
 
^^ Got you DarkBahamut, although I unsuccessfully tried a number of different voltage settings in between that and 1.215V :) I think the RAM may be causing this issue! stop 124 error can also be memory related. The g.skill snipers was out a tri-channel kit I had picked up for my old 920 as a 12GB kit which I never used. Not even sure at the low voltage (1.25V) it is certified for Haswell! with regards to the JDEC spec. I have got hold of some Ripjaws to try out tonight! XMP 8-8-8-24 1T @1.5V these are indeed enthusiast certified for Ivy, SandyBridge and Haswell. Is it worth giving these RAM sticks a shot?
It is strange, the stop 124 BSOD happens after exactly after an hour to the second! At various voltages! Either stressing or gaming! Could this be down to energy saving management? I am running out of ideas!
 
Last edited:
If you know PSU is fine and have a decent Mobo (Mobo does next to nothing these days so most clock the same) and have tried it with 1 stick of Memory at 1333mhz no XMP (in case of weak Memory Controller) then you need accept you have a POS CPU same as mines.
 
jh30uk said:
If you know PSU is fine and have a decent Mobo (Mobo does next to nothing these days so most clock the same) and have tried it with 1 stick of Memory at 1333mhz no XMP (in case of weak Memory Controller) then you need accept you have a POS CPU same as mines.
Click to expand...

Agreed! What OC did you achieve? and at what voltage? Yeah it is looking that way! I have a £240 POS :( My Corsair HX850 Gold Plus certified, should be more than capable, it is only 3 years old! At full pelt system draws 550W at the wall!
 
Last edited:
4.2GHZ not 100% stable as only a short test with volts higher than some need for 4.6GHZ so not worth the time or effort.

Need to get rid of CPU and try another and am sorry I went to this from a Z68+2700k@5GHZ but itch finally got me.

Got in Dec/Jan holiday period so should have held out 5-6month longer and Z97+CPU refresh would be here.
 
mr griffin said:
Ok here goes.... These are the settings I am using on my system atm, obviously depending on how good or bad your cpu and cooling is will determine how high you can overclock. I am no expert overclocker, but to get a reasonable overclock you don't need to be. To be honest most of it is left alone and set on auto.

AI TWEAKER SETTINGS!

AI OVERCLOCK TUNER = MANUAL

CPU STRAP = AUTO

PLL SELECTION = AUTO

FILTER PLL = AUTO

BCLK FREQUENCY = 100.0

INITIAL BCLK FREQUENCY = AUTO

ASUS MULTI CORE ENHANCEMENT = AUTO

CPU CORE RATIO = SYNC ALL CORES

1-CORE RATIO LIMIT = 47 (your cpu could be better or worse so set for 44 and work up)

2-CORE RATIO LIMIT = 47
3-CORE RATIO LIMIT = 47
4-CORE RATIO LIMIT = 47

MIN CPU CACHE RATIO =46 (keep to same speed as cpu or lower if not stable, mine was not stable at 47 so lowered it to 46)

MAX CPU CACHE RATIO = 46

INTERNAL PLL OVERVOLTAGE = ENABLED

BCLK FREQUENCY DRAM FREQUENCY RATIO = AUTO

DRAM FREQUENCY = DDR3-2133(set this for whatever speed ur ram is or can run at when overclocked)

OC TUNER = AS IS

EPU POWER SAVING MODE - DISABLED

D RAM TIMING CONTROL 10-11-11-31-2 (again set whatever ur ram is rated at or you know can run at)

DIGI + POWER CONTROL = CPU POWER PHASE = OPTIMIZED

CPU POWER MANAGEMENT = I DIDN'T CHANGE ANYTHING

EXTREME OVERVOLTAGE = DISABLED

CPU CORE VOLTAGE = ADAPTIVE MODE

OFFSET MODE SIGN = +

CPU CORE VOLTAGE OFFSET = AUTO

ADDITIONAL TURBO MODE CPU CORE VOLTAGE = 1.300( my cpu needs 1.3v to be 4.7 stable, again yours could be better or worse)

TOTAL ADAPTIVE MODE CPU CORE VOLTAGE = 1.300

CPU CACHE VOLTAGE = AUTO

CPU SYSTEM AGENT VOLTAGE OFFSET MODE SIGN = +

CPU SYSTEM AGENT VOLTAGE OFFSET = AUTO

CPU ANALOG I/O VOLTAGE OFFSET MODE SIGN = +

CPU ANALOG I/O VOLTAGE OFFSET = AUTO

CPU DIGITAL I/O VOLTAGE OFFSET MODE SIGN = +

CPU DIGITAL I/O VOLTAGE OFFSET = AUTO

SVID CONTROL = DISABLED

CPU INPUT VOLTAGE =AUTO

DRAM VOLTAGE = 1.5300 (again set at what ur ram is rated at or can run at)

PCH CORE VOLTAGE = AUTO

PCH VLX VOLTAGE = AUTO

VTTDDR VOLTAGE = AUTO

DRAM CTRL REF VOLTAGE = AUTO

DRAM DATA REF VOLTAGE ON CHA = AUTO

D RAM DATA REF VOLTAGE ON CHB = AUTO

CLOCK CROSSING VBOOT = AUTO

CLOCK CROSSING RESET VOLTAGE = AUTO

CLOCK CROSSING VOLTAGE = AUTO

CPU SPREAD SPECTRUM = DISABLED

One other tip.... In windows where you can choose or customise a power plan. I found I had to choose BALANCED, because if set it to performance with the cpu set in the bios on adaptive mode, the cpu wouldn't throttle down or volt down when idle.

good luck guys I hope this is of some help
Click to expand...

Many thanks for that. :)

jh30uk said:
L336 is the batch (open other end next time). :)

Not same as my crap L324.
Click to expand...

I have a BITCH L324 chip too.
Running 4.3 @ 1.29v
I try for 4.4 / 4.5 but not stable :(
What is the highest safe vcore for these chips?
I've read conflicting reports on different websites.
 
I would be happy to put 1.4v on air into it and personally I would go as high as 1.45v.

Intel spec sheet is higher again.

If you can cool it I see no problem.
 
I would be amazed if you could keep a 4770k @ 1.45v cool enough on air. I think most water cooling setups would struggle. On my cpu it can do 4.6 with 1.2v and stays nice and cool, but needs lots more voltage to go higher and the heat really rises with extra volts.
 
Guys quick update! I think I am there! At last! 4.3Ghz @ 1.23Vcore IBT peaks at 78oC - 10 runs, added bonus of getting my RAM down to 8-8-8-24 1T @ 1.5V. Ran real bench stress test, it uses a lot of h.264 encoding, and real, rather than synthetic stressing. Seems promising, it was blue screening here after an hour or so, stop 124, now stable for 4Hrs! Temps settling in mid 60s :D
Running stress test (real bench) for 8Hrs while at work, to get a good idea of settling temps, with a higher ambient room temperature! I must be a resident expert on Haswell and Z87 architecture now!
I will report back on stress test result and temps later.........
BF4 and Titan Fall here I come, I bought BF4, like back in November!
Happy Days! :cool:
 
Last edited:
Good news then. Stability is key for every day use.
realbench stress is only making the cpu reach 60 degrees max temp then you have a nice bit of headroom to get to 4.5 ghz with 1.275v to 1.3v possibly
 
mr griffin said:
Good news then. Stability is key for every day use.
realbench stress is only making the cpu reach 60 degrees max temp then you have a nice bit of headroom to get to 4.5 ghz with 1.275v to 1.3v possibly
Click to expand...

I found voltage core of or above 1.27V temps were getting as high as 87oC :eek: in Real Bench! Might need a better water loop than my Tundra TD03!, if I am to achieve a higher over clock with this chip! Happy with 4.3Ghz at the moment.
 
Last edited:
^^ Are you going to use the PC to run Real Bench / IBT or game on the thing.

Now you have a stable overclock use it normally and see what temps you get over a couple of hours worth of gaming/editing/compiling. Something useful not IBT :P
 
Last edited:
Jester* said:
^^ Are you going to use the PC to run Real Bench / IBT or game on the thing.

Now you have a stable overclock use it normally and see what temps you get over a couple of hours worth of gaming. That is the real test, normal operation.
Click to expand...

So true mate! :o I bought the damn thing nearly a month ago! what a job to get it stable! Your right built for one thing: gaming! That is what I will being doing with it from now on!
 
One thing I also learned from my overclocking experience. If you have graphics driver errors (BSOD) go back to default settings and see if they keep happening.

Took me ages to realise my errors were in fact a poor overclock causing the graphics drivers to fail lol.

Not really related to anything in this thread. But something I had to learn the hard way!
 
Yeah the only time a get driver related errors is when I try and overclock the cache (NB) above 3.9GHz, my pre-over clocked 280X TOPs don't like it and I get a stop 116 error when I try and Crossfire them or run a game! This is a common fault if the GPUs are over clocked I have learned. Thanks for all your input! It is appreciated! Real Bench will give my GPUs a work out also as it will make use of the AMD App (similar to CUDA) for transcoding h.264!
 
FFS! Got home tonight to find my PC at login screen! Following error occurred:

On Wed 12/03/2014 09:00:04 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: eamon.sys (eamon+0x630B)
Bugcheck code: 0xDE (0x2, 0xFFFFF8A003E0E940, 0xFFFFF8A003E1E941, 0x62C518C0)
Error: POOL_CORRUPTION_IN_FILE_AREA
Bug check description: This indicates that a driver has corrupted pool memory that is used for holding pages destined for disk.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: eamon.sys .

Looks like nod32 v4 which I have now upgraded to v7 has a memory leak, it appears quite common. Going to run real bench again tonight to be sure it does not happen again!
Getting withdrawal symptoms! I have not gamed since Dec 23rd!
 
Jonnygrunge said:
FFS! Got home tonight to find my PC at login screen! Following error occurred:

On Wed 12/03/2014 09:00:04 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: eamon.sys (eamon+0x630B)
Bugcheck code: 0xDE (0x2, 0xFFFFF8A003E0E940, 0xFFFFF8A003E1E941, 0x62C518C0)
Error: POOL_CORRUPTION_IN_FILE_AREA
Bug check description: This indicates that a driver has corrupted pool memory that is used for holding pages destined for disk.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: eamon.sys .

Looks like nod32 v4 which I have now upgraded to v7 has a memory leak, it appears quite common. Going to run real bench again tonight to be sure it does not happen again!
Getting withdrawal symptoms! I have not gamed since Dec 23rd!
Click to expand...

Any update??
 
You must log in or register to reply here.
Back
Top Bottom