4770k Overclocking :(

[VI3L]

I'm struggling with overclocking my 4770k, the best I can get so far is 4.4ghz with 1.28v

At this voltage im getting 90c in prime95, 87c in occt and 65c while playing bf4.

Are these temps acceptable while gaming?

I know Haswell is hot but this is just nuts! I'm running a Corsair H110 with Noctua nf a14 PWM fans.

Any advice?

 

[ratjacket]

that's seems like alot of vcore for 4.4GHz

what was your voltage in bios at default on the vcore?

Not sure if that's normal temp for water Aio I get similar with extreme (noisy) air cooling in summer

what's the batch of your cpu

I noticed on my GA mobo that it auto oc'd the uncore if I left it stock

what are the rest of your voltages

vring, vrin

is your ram oc'd as well?

I found that prime95 was more stressful with HT disabled (weird) and not as hot during small FFT, it may be different for you

65 during gameplay should be fine, if that's about the most stressfull thing you will do

 

[VI3L]

I think my chip is just kinda shitty.

default voltage is 1.208...
Malaysian batch
uncore is 35x
other voltages are stock, I was trying to tweak them but i'm not good at it. was just getting crashes.
ram is stock, 1600

Thanks for the reply

 

[ratjacket]

LxxxBxxx?

check your uncore under load I bet it goes to 4000

if it does or doesn't try vring at 1.15

I was having trouble until I set that, if it stabilises you may be able to back off on the vcore

you may be good with 1.15 vring my stock was vcore 1.207 (4.4 is stable at 1.235 with ram on xmp 2133 and uncore auto oc to 4000)

read my thread down below it may help

also if you can control the temp you could up the vrin to about 1.92 or something

Vrin LLC and PWN phase control to extreme helps as well

I recommend prime 95 small fft with HT disabled for stress testing, it fails faster than with HT enabled and has lower temps

 

[guskline]

You are throwing a lot of heat into that box with 2 780s. Are the fans on the H1100 push or pull? My gut says to check your thermal paste on the cpu to AIO block to see if there are gaps.

Have you downloaded Intel's own overclock tuning software?

 

[Jacky60]

How annoying! My recently built 4770k is rocking along at 4.8ghz (at 1.265 vcore, vcore default was 1.032 that's on air with Alpenfohn K2 push/pull. Haven't really stress tested yet but it's good for gaming so far. Malaysian batch -really pleased and surprised as I nearly bought pre-overclocked system but opted instead to take the retail lottery and got good result first time. CPU ring is on 1.165 and using prolimtek PK3 paste in Xigamatek case with loads of airflow.

 

[ratjacket]

Jacky60

What are your load temps?

Are you getting any thermal throtling (probly not in games but at the vcore on air it will be getting pretty close with some stress apps)

are you getting any WHEA errors in your event log?
http://forums.anandtech.com/showthread.php?t=2312638&highlight=whea

What is your batch number?

depends what games your running and how "stable" you want your system

Fire a round of prime 95 small FFT with HT disabled monitor temps and see if you can get 30mins stable with prime at those settings
(as a real quick test to see if ur chip is super awesome)

if you do great let us know that batch its golden (and il be jelly)

I know mine felt fine intaly when i was ocing and i could probly hit high GHz but as soon as i put a stress test on it it crashed

Im not sure if stress tests work incorrectly on haswell or what but on the safe side im running stable 24 hrs small FFT HT disabled (as my stable teast i revert HT back on for use, HT disabled seems to crash prime faster than enabled for some weird reason on the plus side it doesnt get as hot as it does with HT enabled) until anything changes

 

[tweakboy]

You need to raise voltage for stability etc.

 

[Jacky60]

Batch no L318923 I will try prime over weekend. Max temp so far 'looping' Heaven is 61C. Ambient is 19-21c so it's quite cold I here. I'm happy with it's stability at the moment as I use it for gaming not important work. I play Arma 3 almost exclusively but will try running BF3/Crysis 3 soon.

 

[JimmiG]

I'm struggling with overclocking my 4770k, the best I can get so far is 4.4ghz with 1.28v

At this voltage im getting 90c in prime95, 87c in occt and 65c while playing bf4.

Are these temps acceptable while gaming?

I know Haswell is hot but this is just nuts! I'm running a Corsair H110 with Noctua nf a14 PWM fans.

Any advice?

Temps sound about right for a Haswell at 1.28V. Without delid, the threshold of pain is at around 1.25V for most chips. However as you can see, temps in games are a totally different story. Up to you whether you care about artificial AVX stress tests or not. I doubt any game or application will push your CPU above 65-70C.

 

[Ed1]

Batch no L318923 I will try prime over weekend. Max temp so far 'looping' Heaven is 61C. Ambient is 19-21c so it's quite cold I here. I'm happy with it's stability at the moment as I use it for gaming not important work. I play Arma 3 almost exclusively but will try running BF3/Crysis 3 soon.

Heven is not good CPU test , its GPU .
FWIW I get 49-50c in Heven on CPU , BF4 = 59c and prime95=63c , other games run around mid 50's .

So you can see Heven pretty bad for CPU load .

 

[Jacky60]

I know Heaven isn't a CPU test but I also know that running 'stability' tests that are unrepresentative of everyday use is also a pointless task especially if stability means never failing rather than an occasional CTD.

 

[Ed1]

I know Heaven isn't a CPU test but I also know that running 'stability' tests that are unrepresentative of everyday use is also a pointless task especially if stability means never failing rather than an occasional CTD.

I totally agree you can't go by stress tests and say it stable 100% if it passes , you need to run your normal run of app/games .

 

[ratjacket]

It does help to have a certain level of stability unless you want to revert back to stock when you install updates, games, drivers etc.

it is also nice to have for peace of mind as well

if you don't want to have extreme stability it would still be nice to be able to at least run 1hour of prime95 small FFT for limited stability

each to their own

Wand3r3r's WHEA overclock util
the WHEA error finder is a good tool

 

[wand3r3r]

It does help to have a certain level of stability unless you want to revert back to stock when you install updates, games, drivers etc.

it is also nice to have for peace of mind as well

if you don't want to have extreme stability it would still be nice to be able to at least run 1hour of prime95 small FFT for limited stability

each to their own

Wand3r3r's WHEA overclock util
the WHEA error finder is a good tool

I'm glad you found it useful. :thumbsup:

I'll be playing around in a couple weeks myself, I'll have to keep those pesky WHEA errors to a minimum.

 

[VI3L]

Hey sorry I took so long to respond, had to take care of some stuff.

Batch number is L311B219


Cache is at 4x in cpuz under load, so I guess that's my uncore right?

vring at 1.15 didn't seem to help much, my chip still needs 1.28 at 4.4ghz

so far the best results I can get are 4.4ghz 1.28 volts, 4.5ghz 1.34 volts

I cant even run prime at these speeds due to 100+ temps, Occt is about 90c max
Sucky

 

[ratjacket]

Have you tired increasing CPU VRIN external overide above stock (1.8) to 1.9 or 1.92 etc

Also try
CPU VRIN Loadline calibration set to extreme
and
PWN Phase Control to eXm Perf

also if you stress with prime small FFT try it with HT disabled you will have lower temps and it crashes the system faster on my rig anyway than with HT enabled

you can see your uncore in cpuz under the memory tab
NB freqency is your uncore so under load if it is auto ocing it will be 3999-4000

 

[VI3L]

Ya I have tried those things, and u were right, uncore is at 4000.
LLC and PWN phase control are on extreme performance.
I will try 1.92 on vrin override, should I leave vring at 1.15?
almost positive it will crash tho

 

[ratjacket]

fingers crossed you dont

good luck

not sure how high you could push the vring safely or if that would help but it mght be worth a look

also to stop the uncore ocing set it to 36 or 34 as opposed to auto

but when you get your final overclock you might like a little uncore boost

if all esle fails underclock the ram loosen timmings and see if that helps to get an idea of what the cores are capable off

If you have a stronger constituion than me you could delid the cpu and see if its the thermals that are limiting your oc

 

[VI3L]

just tried 4.4 at 1.25, instant crash in prime, HT is off...nice tip.

Im trying 4.4 1.27v 1.9 override and 1.15 vring

uncore is set to 35 in bios, not auto

 

[ratjacket]

I had to set uncore to something other than auto or 35 to stop it auto ocing

 

[VI3L]

I had to set uncore to something other than auto or 35 to stop it auto ocing

What should I set it to while testing my OC?

 

[ratjacket]

34 or 36 if you just want to test the cores

 

[ratjacket]

One mroe thing you could check if you are still getting nowhere fast is the BIOS version your mobo is running

is it the latest?