Intel Haswell Overclocking Clubhouse.

[TheHunter]

well cache test is ok, but by fpu it breaks 90-99C.. @ 1.28v, I guess max 4.5Ghz @ 1.18v.


Edit:
I would delid, I see a 15-20C drop for sure, but its just not worth it.. I dont have any application that utilizes such brute force avx2 90C so I dont mind, yes it looks nice at 67C in Linx or IBT, but nah, maybe in the distant future

 

[LiveOrDie]

Yer it not for every one , If you getting around 90-99c from the FPU test in a game your temps would be around 20c lower, So around 70-80c which is on the boarder line, Really your chip is one of the best i've seen temp wise for a none delidded chip, My CHIP on stock speeds uses to hit 90c on the FPU test in 3 seconds, The only problem your going to get over time is the paste will dry out and temps may increase.

 

[TheHunter]

I just got BF4 and no avx spikes there either, temps are around the same as by BF3, max 67C on hottest core (during loading only) so I think its "ok" - this is at 4.7Ghz @ 1.281v (in win).

 

[TheHunter]

Here is one "bad" thing with per-core cpu voltage, check core0.

Its also the hottest core in every scenario

so far im torn between 1.280 and 1.281v, heh I still need to do some fine tuning at 1.280v.
I thought it was ok 1.278v (all tests passed), but then it failed in really long Bf3, Bf4 sessions 1.281v passed in the end.. I guess it was probably core3 fault- not enough voltage

 

[LiveOrDie]

I can't stop the spikes its ether my board or CPU i'm sure they only last a second at the most because even after playing hours of BF4 my temps are still around the same as they would be on a manual vid. But yer i would keep it @ 4.7 if your temps are that low .

 

[TheHunter]

Did it also happen before delid?

 

[vega22]

fuckers!

i need 1.38vcore for 4.5ghz stable

 

[TheHunter]

What's your batch?

 

[LiveOrDie]

Did it also happen before delid?

Yer how would delidding change voltages , I'm sure it has some thing to do with my board.

fuckers!

i need 1.38vcore for 4.5ghz stable

That does suck take it back or sell it and buy a new one .

 

[Kursah]

Well I'm back to report I returned my CPU back to 1.241v for my 4.5Ghz OC. I had turned it down a bit after disabling the Multicore Enhance option...I think it was a pacebic effect and I started receiving x124 bsods while gaming or other processing intensive tasks...a couple cpu stress tests verified I needed to put it back up to where it was. I still can't complain, this second chip has been a very good one for me! I just thought I'd post my findings that in the end, disabling that setting didn't allow me to reduce my vcore with stability.

 

[vega22]

it's a, bit erm...too late.

got it cheap from a guy i know and i have since delidded and lapped it a little xD

i knew it wasnt a good chip going in, just hurts now seeing how good some are you know.

 

[TheHunter]

^
at least its ok now delidded


Anyway I noticed this, 1.280v won't be stable (heavy cpu/gpu test - LP2 dx9 test2) unless I raise System voltage Vccsa to 0.010+ (0.824v), which also raises VTT a bit 0.003v, LLC6, current 110%, VRM optimized, SVID auto 1.79v.

But when i change to 1.282v which also makes core0 1.283v its fine, even with Vcssa - auto (0.816v), rest of the stuff is the same..

Anyway this is it. Cant do more to get it down unless i try a better paste ^^

And I was already looking at Thermaltake TG-1 or Gelid Extreme

Noctua NT-H1 is great and all, but I have a feeling default pre-applied Shin-Etsu was a little better 2-3C (by max temp) and pic 1 kinda confirms it.

 

[LAN_deRf_HA]

I have to say overclocking Haswell was radically easier than I had expected. I just researched common rules and settings and guesstimated voltages based on the stock. One crash and a VCCSA bump later and it's been solid through all the tough tests and games for a few days now. It could still crash of course but I wasn't expecting to get so far in just 30 minutes of tweaking. Probably helps it's a decent chip. That heat though is absurd. It's ok for 95% of apps, 55-82c depending, but then there's some random stuff like Crysis 3 that pushes it to 99c, but I get the impression it's not a critical issue if your volts are low.

 

[TheHunter]

Crysis3 pushing it to 90C, really?

I will have to play more.. Im still in the beginning and I averaged ~ 45-52C (check msi afterburner temp.)

View attachment 53284


Max temp. so far @ 4.7Ghz 1.280v was in Bf4 core0 @ 72C (by loading), avg ~45-59C.

 

[LAN_deRf_HA]

Even puts me into the 80s with my 3770k. Both systems are on low fan speeds though.

 

[LiveOrDie]

Just picked up a EK Coolstream PE 240mm Radiator still waiting on a few other parts should get some better temps over this H100i.

 

[TheHunter]

btw Turbo boost on or off?

I saw one user and he said this

I don't need it enabled since I'm overclocking via multiplier. Plus I have speedstep on, so my clocks and voltage drop when at idle.

when I asked more specific

I'm not really sure how turbo boost works. All my previous Intel CPUs had it disabled from the start because I've always overclocked via the multiplier.

I have mine on from the moment i bought it, so should i keep it on or off? will it be stabler or use different trubo multi this way ?

 

[LiveOrDie]

btw Turbo boost on or off?

I saw one user and he said this


when I asked more specific



I have mine on from the moment i bought it, so should i keep it on or off? will it be stabler or use different trubo multi this way ?

Turbo boost is a part of the CPUs architecture its always enabled, disabling it and overclocking using the BClock will just limit you also be less stable, Give it a go you will see what i mean.

 

[vega22]

no you can oc the turbo by raising the per core turbo or you can oc the k multi and just increase the max multi.

both work but some mobo only like you doing one or the other.

i think he means he is using the k multi and not the turbo per core option.

i find the per core option is better for low speeds (read day to day settings) while ocing th k multi is best for high speed bench runs and such.

edit

i think i might have it stable @4.5ghz on 1.28 vcore. lower vcore but increase vtt and vring. seems to work.

 

[LiveOrDie]

both will work but i found it was less stable.

 

[TheHunter]

Less stable without turbo boost? Well I didnt test yet..


I was gonna now, but guess I won't bother

 

[LiveOrDie]

As its over clocking the base clock which is 3500Mhz you have to put thought into what values need to be changed, I found i couldn't get the same speed out of the bclock that i did overclocking the turbo clock using the same settings, It will request increasing the none turbo voltage as well which you know there is no adaptive setting for so you lose out on that feature.

 

[HammerON]

Just picked up a EK Coolstream PE 240mm Radiator still waiting on a few other parts should get some better temps over this H100i.

I use the EK CoolStream 240 XT and it does a good job along with the EK Supremacy block. Will be interested to see how your temps fair. What block are you going to use?

 

[LiveOrDie]

I use the EK CoolStream 240 XT and it does a good job along with the EK Supremacy block. Will be interested to see how your temps fair. What block are you going to use?

I've got a Swiftech Apogee Drive II CPU Waterblock/Pump i hear these hold up really well for being a combo unit.

 

[vega22]

nah, swapping vcore for other volts only made it take longer to crash, it was not 100% stable