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Haswell Overclock Thread

I used it first on my old i7 930, under a TRUE 120 cooler it was hitting 78c in ibt at 4ghz with mx4. After a clean up and application of liquid ultra it dropped temps to 71c max. Used it on both my previous 3570k and current 3770k.
 
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 :D
Yes thats at 4.8

i was proper bricking it while delidding and then resinstalling to be honest! hehe

and thanks! if you want any help or advice with doing yours let me know.


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

100% agree bud, it was night and day difference
 
Delided my 4770K today... I used the blade method... I had a quick go at the vice method and nothing happened, so I chickened and went back the blade which I had done before on my 3770K. Unlike last time where I used a modelling knife, brought some single sided razor blade / safety scrapers which went through really easily as they are so thin. Took no more than 5 minutes to have the IHS off.

I can't bring myself to do the bare mount so I put Liquid Metal on the silicon and then the IHS back on.

A quick go on air gave good results 4.8GHz 1.26v was recording 72c on the hottest core after 10 minutes of Prime 95.

Time to decommission my 3770K and put the Haswell setup in my Corsair 540 case - twin rads and lots of fans.

James - did you try with the IHS back on?
Should I be braver and try without it do you think?
 
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Delided my 4770K today... I used the blade method... I had a quick go at the vice method and nothing happened, so I chickened and went back the blade which I had done before on my 3770K. Unlike last time where I used a modelling knife, brought some single sided razor blade / safety scrapers which went through really easily as they are so thin. Took no more than 5 minutes to have the IHS off.

I can't bring myself to do the bare mount so I put Liquid Metal on the silicon and then the IHS back on.

A quick go on air gave good results 4.8GHz 1.26v was recording 72c on the hottest core after 10 minutes of Prime 95.

Time to decommission my 3770K and put the Haswell setup in my Corsair 540 case - twin rads and lots of fans.

James - did you try with the IHS back on?
Should I be braver and try without it do you think?

i didnt try with it back on no, i was going to once i tried with just the mx4. as the temps were so bad.

but after trying the coolaboratory bare die, i cant go back :)

just as an example, at absolute stock, it maxes around 45 degrees on the hottest core.

this goes up to early sixties @4.8 using 1.37 (1.392 after llc)

not the best chip voltage wise, but it does the job and delidded its cool too! (and silent ;))

best mod ive ever done to this pc.
 
you can buy an ek naked mount then mount your cooler to it?

you won't risk crushing the die that way

Yes I brought that and an EK block... trouble is I really want to use my Heatkiller 3 block rather than the EK... looks and performs better.

The big question is... is it any better without the IHS... common sense tells me it must be!
and after reading James's reply... wow to those temps, looks like I must try and bare mount :)
 
OMG whats this!

20130804_154527.jpg


So I delidded using the razor blade method. A lot easier than I thought it would be. Used the EK naked mount kit but managed to get the first seating wrong - no big deal, just loosen the screws and seat the thing again. Slowly this time and with no force. Easy to do on the EK Supremacy block.

As James_2k says, temps are amazing. Haven't seen 80c yet on full FPU Aida64 load with 1.344v (1.3 adaptive).

Edit: Just saw 80 :) After 20m of running Aifda64 FPU only.

Currently rerunning my OCs to see where I can go when naked :)

Did some cosmetics too while I was at it today. New power cable in block and gold. Replaced the Noctua fans on the bottom rad - they are now used in another system. Used some black foam tape to seal the fans to the radiators as well which helped especially on the top 420 rad.:

20130804_185155_LLS.jpg


20130804_173053.jpg
 
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It is :) Hovering at 4.6 atm trying to go higher. Temps are no longer an issue - trying 4.7 on 1.275 adaptive. 3.8 cache and 1.15v. Input voltage at 1.85.
 
Really nice clean build there ibpalle. 4.6ghz is still good, very good temps as well.

Is 85c under p95 running 4.5ghz @ 1.275v all on custom water about right? Those temps are literally at the beginning of running p95 so no doubt will shoot to 90c. Seems high to me considering I'm using xspc raystorm and ex360. I've remounted and even with my previous 4770K I've had similar temps, leads me to think there's an issue between the block and cpu.

Maybe I'll have to baremount as well...
 
Killoc - ty. Been adding bits and pieces for a while - now it's finally a looker as well as a performer :)

I really think baremount is the way to go for water. The issue is not so much the amount of heat generated - it's getting the heat away from the cpu and the IHS, no matter how well seated, will always delay the heat dissipation. With a baremount and a good flow, heat can be removed a lot quicker and there no IHS "bottlenecking" the heat removal.

Currently on 4.6 @ 1.275 adaptive. 4.3 cache @ 1.25. Most other voltages bumped a bit according to the air column on this table (Not bumped to the max values on air :)):
9jjLxDmf6cgDOvtkjD6ciRbGxom_8of6o8z7VWCrxpA=w474-h207-p-no
 
Think I have reached 4.7. My quick stability test is 30m of Crysis 2 :) Now to try for 4.8.

Edit. Just did a 15m FPU only run in Aida64 on [email protected] - max temp 81c! Thats just sick.
 
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has anyone else noticed the huge difference that ram speed makes to temperature?

try a prime95 run at 1600 and then one at ~2400 and theres a large increase!

the temps i gave above were for 2400 ram, when at 1600 its much cooler.
 
Yes noted James.

That is why I ask these guys running 4.8 etc what memory speed?? It does play a massive part. 1600mhz a lot of chips can do this, 2600+ 4.8+ 4.4+ uncore not many!!! For Haswell Uncore and mem speed do impact performance as this is where its strength lies. That is also my issue with all these reviews who don't tune memory or uncore = waste of time!!!
 
Well, I've got a pretty bad chip. Won't even post at 1.2V at 4.6GHz; this is with the stock cooler I should add.

I can post and run tests successfully at stock voltage at 3.9GHz but any higher and I can't. Even at that clock it's pushing it: I hit approx. 80 degrees in AIDA64, after running it for about 4 minutes.

Should I send this one back to Amazon? It's a retail CPU so it came with the cooler and thermal paste pre-applied. I doubt they'll care though. I have returned lots of things to Amazon lol and they never seem to care.

Edit: This is batch #L311B514 for anybody interested. From doing some quick Googling, this appears to be a bad batch - just my luck.

Edit 2: Spoke to Amazon and they said they would be happy to take it back, despite it being used. They just said it counted as 'Performance or quality not adequate', which in this case is true. A great result!
 
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