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Haswell Overclock Thread

Just got my system up and running yesterday evening at 4.5ghz 1.243v it hits the 90s in Prime blend test with room temp at 25c.....games like Crysis 3 were hitting 75-79 lol.

I am using a Corsair H80i on balanced but i think if i lower voltage to 1.2v or so and if i get stable it probably knock about 5-10c off easily right?

Idle temps are in low 30s usually about 32-35 so cooler surely is seated fine as i can't move it either if i grab it.

Room temps dont help much though i guess. :p

It booted into windows at 1.2v on 4.6ghz but crashed on Cinebench. :(
 
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8 Pack said:
Guys on ASUS boards try using Turbo Vcore. This is a very light on system resources version of Auisuite and works great.
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Light on system resources? Is it a program? Elaborate please, you have me intrigued.

By the way 8 Pack, any other OC advice for us peeps on the asus hero? :p
 
Got a 124 BSOD overnight, whilst just downloading.. :( I've read that it could be the new C-states causing this, seeing as she wasn't under any sort of load. Thing is, I'd rather not disable them for power saving reasons since I tend to leave her on overnight... is there any way around this? Lets just say that dropping my overclock is not an option ;p

I should add that practically everything save RAM voltage and vcore is still on auto - would some tweaking fix this?
 
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oldestgregg said:
A chip that OC's from 2.6 to 3.8 is hardly a duffer though is it? :confused:
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The fact that it refused to reach even 3.9 with HT off just irked me a lot, considering many managed to reach 4ghz. And yeah, by comparison it's a better OC, but it was very much average for that chip, if not below average.

You make a fair point though.
 
Just trying to re-assure you mate that 4ghz was a good overclock for that CPU and your only 100mhz away which unless you are benching,will not even be noticed. Myself and 4 of my mates all had the DO stepping 920s and none of them went above 4ghz. Sorry but 4ghz below average? Thats a solid chip bud.
 
And yeah some of them do hit higher speeds but how much voltage do you have to put through them and I dont class 4.5ghz at 100 degrees a solid overclock. I like mine to sit stable 24/7 with temps that dont make me worried to leave the house with it switched on :p
 
oldestgregg said:
Just trying to re-assure you mate that 4ghz was a good overclock for that CPU and your only 100mhz away which unless you are benching,will not even be noticed. Myself and 4 of my mates all had the DO stepping 920s and none of them went above 4ghz. Sorry but 4ghz below average? Thats a solid chip bud.
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+1. Managed to get my 920 to 4ghz but it was not easy - not many did 4ghz easily, but mine was still solid though at 3.9ghz, and I still thought it a decent chip.Had both C0 and a D0, little difference if truth be told between them.
 
Hi all

Got myself a 4670K and a Z87-WS Asus board. I tried the autotuning utility which resulted in an unstable OC at 4.8 on 4 cores and 4.9 on 2. Had to dial that down to 4.7 to get stable.

The auto tune set an OC voltage adaptive at 1.4! That became almost 1.5 on Aida64 tests and resulted in some throttling.

New BIOS was out a couple days ago and I updated the BIOS, reset to defaults and tried again. This time voltage was set to 1.275 and resulted in an OC of 4.6 on 4 cores and 4.7 on 2. However it wasn't stable so I started playing in the BIOS instead.

After a bit of mucking about I am now stable at 4.7 on all 4 cores with adaptive voltage and an offset of 0.230 which gives me a max voltage of 1.392 - max temps seen so far in Aida64 testing is 86c. During an extended Metro 2033 session temps stayed in the mid 50s.

I run a fairly beefy watercooled setup. Link to pics and specs here

I liked using the autotune to dial in to the general ballpark of where I could go. Now it's just up to me to tweak and learn more about this chip. I haven't delidded but I am seriously thinking about it as I have a feeling I could get a good deal more out of this chip.

I haven't touched the CPU cache multiplier yet - still at the default 38. As soon as I touch it I get a stall - not a BSOD. Haven't really fiddled with cache voltage and settings yet - that is still to come.

Batch number is an early one apparently: L307B086.

Overall I am fairly happy with where the system is now. Solid overclock and manageable temps.

So what do you guys think - good chip or bad? :) Any suggestions on where in the BIOS I should go next to try and squeeze some extra juice out of this chip?
 
ibpalle said:
Got myself a 4670K and a Z87-WS Asus board. I tried the autotuning utility which resulted in an unstable OC at 4.8 on 4 cores and 4.9 on 2. Had to dial that down to 4.7 to get stable.

...

So what do you guys think - good chip or bad? :) Any suggestions on where in the BIOS I should go next to try and squeeze some extra juice out of this chip?
Click to expand...

Seems a pretty decent chip to me. On my high end air cooling I can only just squeeze out 4.7, but a few minutes in Civ5 bluescreened (AIDA64 and Handbrake seemed stable). As the voltages I need for 4.7 are really pushing my stresstest temps I'm not comfortable pushing mine much more without a custom loop and/or delidding. That's on a L310 btw.

As long as your stresstest temps don't overshoot 85c to 90c and your CPU doesn't start throttling you're still fine. So the question is really what speed you can get it stable at within that temperature range, and from there you need to see if you can lower anything to keep it a bit cooler.

So once you've got a clock you're happy with and which is stable, start lowering your vcore voltages until it crashes, then nudge it back up again by about two ticks. Do the same for the uncore, try to get it between 3x to 1x multiplier from your clock, though to get that close you probably need to push the cache voltage up and that raises temperatures as well.

Also note that overclocking your memory likely affects what speed you can get out of the CPU, so set the memory to slow defaults if you've been overclocking that already. Don't fiddle with the memory settings until you've got a stable overclock.
 
Memory is running 1600 on fairly tight timings from the XMP profile - I'm by no means an expert on that though but I could drop it down to 1333.

I can feel the delidding urge slowly growing - will probably do it in the next month or so but for now I think I'll be happy testing various games out and enjoying performance. Just finished Metro 2033 on highest settings - did need to drop down to a 3150x1680 resolution though as the 2gb mem on the 680 became a bottleneck at 3600x1920. No great loss - game still looks absolutely fantastic. So nice to be able to play at a solid 60fps at max settings on games as demanding as Metro 2033.
 
Temps are still fine on my system - tops out at 86 on hottest core but only when benching. With normal gaming it stays in the 50s.

So delid the chip or wait for winter to arrive? Hmmmm, decisions, decisions....

:)
 
An update to my earlier posts.

I put the replacement 4770K into my Asus board and it's certainly better. I haven't done any stress testing yet but I can boot up and run general desktop things stable at 4.6GHz with 1.27v. It posts at 1.25v but fails to boot. That's certainly better than the 1.35v I needed just to get to ~4.4GHz with the last one.

Since I've got a higher end air cooler I think anything up to 1.3v will be ok for normal use/gaming, so I'll try to get to 4.7GHz stable and leave it there.
 
Hi guys

I've just got my i7 4770K and Gigabyte g1 sniper m5 mobo up and running. Had a go at overclocking today and, well, pretty disappointed in the results tbh, only managed to get 4.3ghz using 1.3v. I've tried faster but no matter the voltage, just get bsod's.

Bad cpu, bummer :|
 
1Deep said:
Hi guys

I've just got my i7 4770K and Gigabyte g1 sniper m5 mobo up and running. Had a go at overclocking today and, well, pretty disappointed in the results tbh, only managed to get 4.3ghz using 1.3v. I've tried faster but no matter the voltage, just get bsod's.

Bad cpu, bummer :|
Click to expand...

Have you only tried the voltage settings? You'll probably need to look at some other settings as well first. On my original 4770K I couldn't get 4.3GHz stable at 1.3v (but I could at higher voltage and with other settings).
 
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