My 4770k OC experience, fussy chip.

[Equlix]

i was able to stress test for an hour straight by doing what i recommended above and i was only at 1.2V.

 

worth a shot.

Mine took 1.3v to get to 4.5 using ietu but i tested it for 2 hours and it when up to around 84c not the best chip and it still needs a 24hr test but ietu is the only way to test these new haswell chips, everything else does more harm than good.  

 

Edit.

also thanks for the help.

[ProKoN]

Equlix, on 25 Jul 2013 - 10:15 PM, said:

Mine took 1.3v to get to 4.5 using ietu but i tested it for 2 hours and it when up to around 84c not the best chip and it still needs a 24hr test but ietu is the only way to test these new haswell chips, everything else does more harm than good.

Edit.

also thanks for the help.

to get 4.5 or higher on a 4770K requires much more voltage. it is theoretically where the performance\watt ratio is less ideal, but the performance gains are awesome.

what is your cooler?

your ambient temps?

my chip also requires around 1.3V to hit 4.5GHz stable.

[TinGolon]

i use my 4770k 4.6ghz@1.26v

 

 

http://i.imgur.com/dw2geCT.jpg

 

http://i.imgur.com/PV6BYft.jpg

 

http://i.imgur.com/61HChPj.jpg

 

 

greetings.

 

[Equlix]

to get 4.5 or higher on a 4770K requires much more voltage. it is theoretically where the performance\watt ratio is less ideal, but the performance gains are awesome.

what is your cooler?

your ambient temps?

my chip also requires around 1.3V to hit 4.5GHz stable.

Custom loop es 240 and rx 240 with koolance 380i. Ambient is toasty 29c. i could maybe get down another 10c if i wasn't using super cheap wt120 fans.

[ProKoN]

doing what i mentioned before i was able to achieve 4.4GHz stable for ten hours at 1.23V

 

you may need more or less volts (+ or - .04V) to achieve this but i think its entirely possible

 

 

[sgs2008]

I dont know how you guys have such cool cpus under load at such high volts. My 4770k is @ 4.4ghz and 1.285 vcore. I hit high 80s in prime 95 after like a minute. IIETU will be at low 80s. Even playing crysis 3 for an hour makes my cpu hit high 70's. This is with a swiftech h220 and ambient temps about 20 -25 degrees celsius

[ProKoN]

I dont know how you guys have such cool cpus under load at such high volts. My 4770k is @ 4.4ghz and 1.285 vcore. I hit high 80s in prime 95 after like a minute. IIETU will be at low 80s. Even playing crysis 3 for an hour makes my cpu hit high 70's. This is with a swiftech h220 and ambient temps about 20 -25 degrees celsius

please disregard my temps

 

i have delided my chip and replaced the stock tim with arctic mx-2

 

i also have a swiftech h220 with a second 120mm rad added to the loop, so its somewhat custom.

 

my temps are not relavent unless you want to spend 200.00 on kooling this beast and voiding your warranty.

[ProKoN]

I dont know how you guys have such cool cpus under load at such high volts. My 4770k is @ 4.4ghz and 1.285 vcore. I hit high 80s in prime 95 after like a minute. IIETU will be at low 80s. Even playing crysis 3 for an hour makes my cpu hit high 70's. This is with a swiftech h220 and ambient temps about 20 -25 degrees celsius

have you tried this?

 

install latest bios

 

clear cmos

 

change your multiplier to 44 and your vcore voltage to 1.23V ( you may need 1.24, 1.25, 1.26V)

 

set your ram at 1333MHz and manually input the stock voltage for your ram ( your ram calls for 1.35V i would set it at 1.5V to start)

 

leave all other settings, dont change anything else.

 

try to boot and stress test

 

 

1.285 is kinda high for 4.4 ghz.

 

only use the ietu to stress test.

 

try this step by step

[Equlix]

 

[sgs2008]

have you tried this?

 

install latest bios

 

clear cmos

 

change your multiplier to 44 and your vcore voltage to 1.23V ( you may need 1.24, 1.25, 1.26V)

 

set your ram at 1333MHz and manually input the stock voltage for your ram ( your ram calls for 1.35V i would set it at 1.5V to start)

 

leave all other settings, dont change anything else.

 

try to boot and stress test

 

 

1.285 is kinda high for 4.4 ghz.

 

only use the ietu to stress test.

 

try this step by step

 

Ok thanks ProKon ill have a go, how long would you run ietu for ?

[ProKoN]

Ok thanks ProKon ill have a go, how long would you run ietu for ?

8-24 hours Minimum

[sgs2008]

Do you think increasing pch voltage will increase stability as I'm running 2 gtx 680s?

[ProKoN]

try what i suggested

 

dont modify any other setting

[Exotath]

So finally getting around to trying bios 1.2

 

Was able to boot into windows @ 4.6Ghz with 1.25v but cinebench crashed.

 

Going to start testing 4.4Ghz Stability in IETU.

[Exotath]

Well...wow...4.4Ghz passed a quick 5 min IETU test. It's never been able to do that before.  :D 

I'll set it to run for 8 hours and see where I get with it. *fingers crossed*

[ProKoN]

Well...wow...4.4Ghz passed a quick 5 min IETU test. It's never been able to do that before.  :D 

I'll set it to run for 8 hours and see where I get with it. *fingers crossed*

get stable for 8 hours or more.

 

report back with temps.

 

then we can work on increasing the ring bus.

[Exotath]

Basically back where I was before. System doesn't crash but I do get a lot of system errors in event viewer that weren't there before. IETU failed sometime around the three hour mark.

 

Honestly exhausted with trying for more. Appreciate all your help but it truly is not going to happen with this chip, I'm done...not worth the headache.

[ProKoN]

Basically back where I was before. System doesn't crash but I do get a lot of system errors in event viewer that weren't there before. IETU failed sometime around the three hour mark.

 

Honestly exhausted with trying for more. Appreciate all your help but it truly is not going to happen with this chip, I'm done...not worth the headache.

your next steps are to try at 1.26V. 1.27V

 

sounds like your close to achieving stability.

 

took me over a month to achieve best results

 

your overclock reflects the amount of time your willing to commit, if your ready to give up...kool

[Exotath]

You know how to cut into me.  :lol: 
 

I have spent many many hours on this over the week. Have had to repair the OS a few times from crashes.

Having said all that....here it is. Largely in part to you, your tips, and pushing me. lol

4.4Ghz @ 1.275V 3500Mhz Ring Bus 1.22vring / 2.0vccin http://imageshack.us/photo/my-images/23/edxi.jpg/
 

8+ Hours IETU Stable (had run a 1hr test prior to the 8Hr). Also had to adjust all other voltages with very slight bumps.

Over the duration of the test temps peaked @ 80C. So I suppose the chip is an o.k. clocker...under water it would probly fair well.

[ProKoN]

You know how to cut into me.  :lol: 

 

I have spent many many hours on this over the week. Have had to repair the OS a few times from crashes.

Having said all that....here it is. Largely in part to you, your tips, and pushing me. lol

4.4Ghz @ 1.275V 3500Mhz Ring Bus 1.22vring / 2.0vccin http://imageshack.us/photo/my-images/23/edxi.jpg/

 

8+ Hours IETU Stable (had run a 1hr test prior to the 8Hr). Also had to adjust all other voltages with very slight bumps.

Over the duration of the test temps peaked @ 80C. So I suppose the chip is an o.k. clocker...under water it would probly fair well.

hooorah!

 

so you found some stability i take it?

 

are you ready to start increasing the ring bus so you can maximize your overclock?

 

i would set your

 

cpu ring bus voltage for 1.275V

 

cpu ring bus multiplier 44

 

try to get 1:1 with the cpu ring bus.

 

if you get it stable at 4400MHz start bringing the ring bus voltage down as low as you can . for example i got 4.4GHz @1.23V ring bus 4400MHz @ 1.22V

 

once again you need to find stability for 8 hours minimum

 

its a drawn out process, it takes time i know, i know.

 

 

 

im glad your stickin in there trooper.

 

 

 

with a better cooling solution you can prolly go further but i think 1.275V is a very comfortable spot to be, right now. as you bring up the cpu ring frequency you might generate slightly more heat than what its at right now (3500MHz), but nothing major maybe +3c

[Exotath]

I will give it a go this weekend, pretty busy this week. 

[HTiLewis]

Great thread! I am looking at getting a 4770k here soon and this thread has been very educational. I want to see the results after you guys are done with it.