Haswell Overclock Thread

Boomstick777 · 31 Jul 2013 at 21:09

smit101 said:
I haven't had any throttling in prime, not run IBT. Not happy with temps overall though, particularly as I'm only 1.23 vcore, would like to increase clock to 5ghz but more voltage required for that so seriously thinking about delidding, need to decide on vice or razor method though!. If I do go ahead I'll re-mount naked using the EK precise mount kit with some coollaboratory liquid pro.

Yeah the temps on these chips are very high, my chip can hit 82c @ stock settings running Intel Burn Test :eek:

I'm not sure if this is down to pulling more volts than CPUZ is displaying or what? ..

Overall though the performance VS low power use is awesome. Run my chip at stock 24/7, would be nice to be able to crank it up for the occasional benchy or encoding, but my chip does not like to be OC lol. This is ideal to tide me over until Haswell -E in a couple years though. Hopefully the heat issues will be resolved by then. No IGPU etc might help a lot..

james_2k · 31 Jul 2013 at 22:04

i had a scary moment when i was stability testing my cpu today (just for fun really) i forgot to change the voltage to manual. and using aida fpu stab test (for the highest temps) it cranked the volts up to 1.45! from 1.37, i was wondering why the cpu cores were reaching 80..

but this also raises the question, that if it doesnt even go over 83 or so under max temp load at 1.45v maybe i should asim for 4.9 or 5ghz on 1.45 hehe. oh dear.

p.s.

everyone should delid and bare mount their cpus, the temps are so amazing*.

*no responsibility taken for broken cpus hehe

edit:

bumped my bclk to 100.5 so thats 4824mhz with 2417mhz ram at the same voltages as 4800/2400. its not much but its something for effectively free!

spankingtexan · 1 Aug 2013 at 07:20

Boomstick777 said:
Yeah the temps on these chips are very high, my chip can hit 82c @ stock settings running Intel Burn Test I'm not sure if this is down to pulling more volts than CPUZ is displaying or what? ..

Overall though the performance VS low power use is awesome. Run my chip at stock 24/7, would be nice to be able to crank it up for the occasional benchy or encoding, but my chip does not like to be OC lol. This is ideal to tide me over until Haswell -E in a couple years though. Hopefully the heat issues will be resolved by then. No IGPU etc might help a lot..

I've noticed CPUZ voltage stays the same, I was stress testing with OCCT and it says 1.140V while CPUZ reports 1.130V I manually set vcore to 1.130v but for some reason CPUZ voltage doesn't increase as it does in OCCT when the chip draws more power under stress.
Not trusting CPUZ at the moment, version 1.65.0

Boomstick777 · 1 Aug 2013 at 11:43

spankingtexan said:
I've noticed CPUZ voltage stays the same, I was stress testing with OCCT and it says 1.140V while CPUZ reports 1.130V I manually set vcore to 1.130v but for some reason CPUZ voltage doesn't increase as it does in OCCT when the chip draws more power under stress.
Not trusting CPUZ at the moment, version 1.65.0

Yeah not sure if CPUZ is as accurate or it's a bios issue. I have also noticed that when you change voltages in the bios, the volts won't change until I power off the system and then restart. This means that I f I was just to change settings and then boot straight into Windows, volts will not have changed so makes system appear unstable but actually you have to power off completely for the volts to change. Def a lot different to Sandy / Ivy... I would be happy with 4.4Ghz for benching and encoding.. Hopefully future bioses will make OC easier / more stable...

1Deep · 1 Aug 2013 at 12:34

cpuz version 1.65.0 for some reason doesn't read the cpu voltage correctly. Version 1.64.0 does though so I use that, it displays the correct voltage and fluctuates when stress testing.

bicpug · 1 Aug 2013 at 16:02

Is it possible to get an average overclock to around 4.2ghz and still have the cpu use the speedstep power reduction features?

ash888 · 1 Aug 2013 at 18:05

Quick question guys.
what does lowering or raising the uncore achieve?

Shiari · 1 Aug 2013 at 18:12

1Deep said:
cpuz version 1.65.0 for some reason doesn't read the cpu voltage correctly. Version 1.64.0 does though so I use that, it displays the correct voltage and fluctuates when stress testing.

Not on my board. We ASRock users had to use at least 1.64.1 to get a proper voltage reading, 1.65 is fine.

Shiari · 1 Aug 2013 at 18:16

bicpug said:
Is it possible to get an average overclock to around 4.2ghz and still have the cpu use the speedstep power reduction features?

Yup, though speedstep in itself doesn't really reduce power much. You'd also need to use an adaptive voltage setting.

Mine idles at 800MHz, ~0.78V, and a reported TDP of about 5W.

ibpalle · 1 Aug 2013 at 19:49

Hi all

Posted earlier with my starting results - been reading OC threads here and elsewhere and revisited my settings, mainly to get a drop in voltage as I was on 1.375 adaptive for 4.6. Working fine for normal usage but temps were nasty under fpu only aida64. Im running a custom waterloop.

I use an Asus z87-ws board and I managed to get a full .1 v drop for my OC after changing some of the power control settings.

CPU LLC on lvl 6. Was on 8 before.
CPU Power phase control: Optimized - was on Extreme.
CPU Power duty control: T.Probe - was on Extreme.

Was following up on some advice from both other forums and JJs OCvideos.

I had set those options without proper knowledge about them and had just set was I thought would be good for a OC setup - they probably are but more for extreme OC with LN. Was thinking others might have done the same since I see some stories about low clocks and massive voltages needed.

Anyway, changing those settings to more balanced (?) set of values has enabled me a 4.6 OC on 1.265 adaptive and an offset of 0.010 (BIOS needs an offset apparently to be able to set adaptive - and my OCD wont allow for a value of 0.001!)

Temps still on the high side after fpu only aida64 so delidding is next - have the tools for the job, now to find the time and resolve.

Delidding - been debating that for some time as all my core temps are normally very even. Did a hot fpu run and max temps on all cores was the same - 84. This leads me to think that the ihs may not be badly seated on this 4670K. Delidding possibly wont net me a massive drop - maybe just 5c which wont give me much extra headroom.

Interesting to be heat constrained - I know the chip can run 4.7 so possibly higher is achievable - it's just this darn heat....

Currently running 4.4 1.200+0.010 adaptive and temps are 84 on full FPU Aida64 and mid 50s when gaming.

4670K. 1600 Ballistix RAM. Uncore 38 voltage on auto.

ibpalle · 1 Aug 2013 at 19:52

james_2k said:
p.s.
everyone should delid and bare mount their cpus, the temps are so amazing*.
*no responsibility taken for broken cpus hehe
!

Got the mounting kit today. You using the coolaboratory liquid? Did you protect the capacitors in any way? Do you use the EK naked Ivy mount kit?

james_2k · 1 Aug 2013 at 20:20

Yes, ultra, used some electrical tape, no

ibpalle · 1 Aug 2013 at 21:19

james_2k said:
Yes, ultra, used some electrical tape, no

Thanks for replying. Did you use a mounting kit or were you delicate?

james_2k · 1 Aug 2013 at 21:36

I was .. Careful

Swiftech hd block had no issues mounting. Scary though

Boomstick777 · 2 Aug 2013 at 01:54

Finally got some stability @ 4.4Ghz !! Looks like Ring Voltage was holding me back, set it at 1.15v and voila. Not bad for a budget mobo lol. Temps are limiting past me 4.4Ghz now. Hit 82c load temp. Anybody else got discrepancy in core temps? One of my cores is like 10c lower than the rest??

Boomstick777 · 2 Aug 2013 at 02:49

Stable @ 4.5Ghz now. Ring voltage is def the key on my setup.

spankingtexan · 3 Aug 2013 at 12:38

james_2k said:
just delidded my cpu.

first i used mx4 and got actually worse temps than stock. i wasnt happy

bought some coolaboratory ultra and its, wait for it, 40 degrees cooler than it was before.. max core temp of 62 in prime. where before it was approaching 100.

this is bare die mounted, im sure if you delid and still use the ihs then mx4 is fine, but damn, i remounted it 3 times with the mx4 and still sucked.

so to conclude, if you are bare die mounting, then use coolaboratory, insane!!!

my cpu is now cooler than my i7 920 was hehehe, happy days

Wow, 62c I assume at your 4.8GHz oc? that's awesome, even cooler than my 4.8GHz on my old 2500k. Enjoy man

Whish I had the balls to do this myself but I don't think my old ticker would stand the strain

setter · 3 Aug 2013 at 12:42

Got a 4770k coming this week, bought on members market. It's been tested briefly at 4.6ghz on 1.25 vcore in bios. Might be tempted to delid it.

wazza300 · 3 Aug 2013 at 12:52

mx4 is a waste of time on the die,been there done it

you HAVE to use coolaboratory on the die/top of internal heatsink

setter · 3 Aug 2013 at 12:54

Tbh, i dont think i could go back to using standard pastes now, even just for use on the top of the ihs the liquid metal stuff is far better.