Haswell Overclock Thread

james_2k · 23 Jul 2013 at 18:03

yes ok great.

i dont tend to keep my case open.

the cpu is at 4.8 with lots of volts so its silent with that. as i said, most games its still silent. games such as grid 2, the witcher etc. infact it could be silent doing anything because i set the fan profiles.

air cooling + gpu air cooling, even with good ones, will be noisy (comparatively) playing any games. bar solitare maybe.

but im thinking you have never seen a proper water cooled setup

but we digress somewhat i think, im glad you are happy with your pcs noise.

teppic · 23 Jul 2013 at 18:13

Me saying that my cooler is quiet and quieter than most AIO water coolers isn't me saying anything more than that. I'm sure yours is as quiet as you say, I never said it wasn't

BriT · 23 Jul 2013 at 18:26

Anyone delidded? worth doing? Can't get mine higher than 4.4ghz at 1.2v or will i just end breaking the thing lol

1Deep · 23 Jul 2013 at 18:29

BriT said:
Anyone delidded? worth doing? Can't get mine higher than 4.4ghz at 1.2v or will i just end breaking the thing lol

I'm only going to bother delidding if I get a cpu that would benefit from it. If I get a decent 4770K tomorrow, I'll consider delidding it over the weekend.

It is risky, especially now with the FIVR on the cpu, but it has been done, PCZ I believe has done it to his 4770K.

james_2k · 23 Jul 2013 at 18:30

teppic said:
Me saying that my cooler is quiet and quieter than most AIO water coolers isn't me saying anything more than that. I'm sure yours is as quiet as you say, I never said it wasn't

i didnt realise you meant all in one water coolers. as you just said watercooling

its all good, funny when i was younger i didnt care if the pc sounded like a jet taking off, infact i liked that! but now fan noise annoys me far too much hehe

teppic · 23 Jul 2013 at 18:34

james_2k said:
i didnt realise you meant all in one water coolers. as you just said watercooling

its all good, funny when i was younger i didnt care if the pc sounded like a jet taking off, infact i liked that! but now fan noise annoys me far too much hehe

Yup, I'm only talking about CPU cooling, not whole system cooling.

Maybe it's a case of all or nothing, lots of fan noise or none

BriT · 23 Jul 2013 at 18:39

1Deep said:
I'm only going to bother delidding if I get a cpu that would benefit from it. If I get a decent 4770K tomorrow, I'll consider delidding it over the weekend.

It is risky, especially now with the FIVR on the cpu, but it has been done, PCZ I believe has done it to his 4770K.

Yeah i've seen various videos of the vice method which i am considering doing as i have a decent vice already.

1Deep · 23 Jul 2013 at 18:43

I've only ever used the razor method, worked well on ivy, will be a little more difficult with haswell.

The vice method is apparently the safest so you should be all set to go

. Easier said than done though, it is a little nerve-wracking when you first start trying to pull apart such an expensive piece of equipment.

deaglecat · 23 Jul 2013 at 19:59

So ... is haswell a bit rubbish for overclocking then ? I listened to Anandtech's podcast and they seemed very downbeat on it. Can't believe that folk are talking seriously about de-lidding the processor to get decent overclocks.

petedread · 23 Jul 2013 at 22:35

deaglecat said:
So ... is haswell a bit rubbish for overclocking then ? I listened to Anandtech's podcast and they seemed very downbeat on it. Can't believe that folk are talking seriously about de-lidding the processor to get decent overclocks.

yes it is a bad overclocker. Some people get decent chips but most (70%) don't. If 70% of people could hit 4.5 instead of 4.2/3 it would be worth a gamble. Haswel at 4.2/3 won't out perform a sandy at 4.6/7/8. Unless you can live with 4.2/3 don't buy one because that's most likely what you'll get. It's a real shame because there are a lot of great Z87 boards. I've still got my 2700K thank god, because my 4770K must be almost dead now with all the stress testing I've been doing to try and get a decent OC. It has spent a lot of hours at 90c and above. That's my own fault for not waiting until I have got myself a MORA3, but it's frustrating not being able to get a decent OC. My 2700K could do 5ghz easy. I mite treat it to a Z77 UP7 and be done with Haswell.

teppic · 23 Jul 2013 at 22:44

Yeah they're quite poor given how many seem to have trouble getting to 4.5GHz at reasonable temps. With some maxing out at 4.2GHz I think it'd have better if Intel had released the Haswell i5/i7s simply as all unlocked and forgotten the separate K range.

SimonMaltby · 24 Jul 2013 at 09:47

Shiari · 24 Jul 2013 at 10:55

deaglecat said:
So ... is haswell a bit rubbish for overclocking then ? I listened to Anandtech's podcast and they seemed very downbeat on it. Can't believe that folk are talking seriously about de-lidding the processor to get decent overclocks.

Some here seem to know all the numbers, but I think the fact is that nobody really knows what the ratio of bad vs good clockers really is. I think that many people who ever buy an unlocked CPU would never even try to hit the limit, and thus never discover what their chip is capable of. Of those who do try, not all of them may be posting about it. And of those who do try, some might be doing it wrong and making wrong assumptions about their results. And then there's variances in cooling, and people might disagree on what a "good" clock is (some might be happy reaching only 4.3, others might be unhappy not reaching 5.0).

Yeah, it's known that there's plenty of Haswell K's out there that have trouble reaching higher clocks. But I don't believe that anybody actually has the correct and statistically meaningful numbers.

killoc · 24 Jul 2013 at 18:41

SimonMaltby said:

Nice! but i'm sure the batch number is L315B402 (B not a 8?).

deaglecat · 24 Jul 2013 at 19:41

Shiari said:
Some here seem to know all the numbers, but I think the fact is that nobody really knows what the ratio of bad vs good clockers really is. I think that many people who ever buy an unlocked CPU would never even try to hit the limit, and thus never discover what their chip is capable of. Of those who do try, not all of them may be posting about it. And of those who do try, some might be doing it wrong and making wrong assumptions about their results. And then there's variances in cooling, and people might disagree on what a "good" clock is (some might be happy reaching only 4.3, others might be unhappy not reaching 5.0).

Yeah, it's known that there's plenty of Haswell K's out there that have trouble reaching higher clocks. But I don't believe that anybody actually has the correct and statistically meaningful numbers.

Well that is pretty much the last thing that the PC enthusiast market wanted out of Haswell. Maybe it will improve as the process and yields are ironed out... We can only hope.

scotsdragon · 24 Jul 2013 at 20:30

Since MS started using TIM on the IHS OCing has suffered, it was pretty underhanded as these chips are sold as overclockers but to get the best out of them you have to void your warranty and delid

Shiari · 24 Jul 2013 at 20:56

deaglecat said:
Well that is pretty much the last thing that the PC enthusiast market wanted out of Haswell. Maybe it will improve as the process and yields are ironed out... We can only hope.

That's no news though, it's been well known for a while Haswell's focus has been on reducing power requirements to benefit mobile devices. Though desktop users are still being served to some extent (and I suppose, as technology improves, will continue to benefit even when the focus would continue to be on mobile).

That said, I'm not complaining at all. Sure, I won't be able to push 5GHz on air with my decent clocker (maybe that's reachable with custom watercooling and delidding), it's still a big upgrade from my old Q6600 @ 3.6, and the much newer tech from the Z87 chipset. It would have been a solid upgrade even at a lower clock of say 4.2GHz. But yeah, if you're on a more recent generation already then there's really not much of a point to upgrading.

smit101 · 25 Jul 2013 at 07:58

Initial impression of my 4770k quite positive, set vcore to 1.2 in bios and 48 multiplier, ran Aida64 for 5 hrs without error, OCCT bombed out at same voltage after 10 mins so bumped vcore to 1.225 and it passed the 30 minute mark ok (Linpack test wth Avx capable linpack enabled). Just running on a water cooled test bed with a 360 rad at the moment, will hopefully finish new watercooling loop today and get everything installed in the case, will be using twin 480 rads in a 900D so hoping to lower temps a bit.

Shiari · 25 Jul 2013 at 12:15

smit101 said:
ran Aida64 for 5 hrs without error

IMO that's overkill. AIDA64 tends to reveal issues in under about 20 minutes tops. Intel XTU CPU and memory stresstests tends to reveal issues in under 5 minutes. Handbrake tends to reveal issues in 15-20 minutes. Though that said, with all those seemingly stable at 4.7 I still crashed within minutes in Civ 5

Anyway, you don't really need to let a stress test run that long. Give it shorter artificial tests, a bit longer on more real life tests (e.g. Handbrake encoding) and just use the system to see if you're really stable.

killoc · 25 Jul 2013 at 12:51

smit101 said:
Initial impression of my 4770k quite positive, set vcore to 1.2 in bios and 48 multiplier, ran Aida64 for 5 hrs without error, OCCT bombed out at same voltage after 10 mins so bumped vcore to 1.225 and it passed the 30 minute mark ok (Linpack test wth Avx capable linpack enabled). Just running on a water cooled test bed with a 360 rad at the moment, will hopefully finish new watercooling loop today and get everything installed in the case, will be using twin 480 rads in a 900D so hoping to lower temps a bit.

Looking good. Planning to go 5ghz?