Help! 4770K Hitting 100c @ Stock On Water [SOLVED]

[Gr3y Wolf]

For curiosities sake what happens to the temps if you disable hyper-threading?

The mounting screws on the H100i are fully tightened? I don't think they have proper mounting pressure unless they are as tight as they will go.

Just tried disabling Hyper Threading, max load temp dropped by about 8C. But i shouldnt have to disable processor features to keep it under max temp.

Yes, they are fully tightened, in fact i think i may have overtightened them slightly when i reseated...

 

[Exeodus]

This is worth a try. Are you sure you removed the plastic cover on the bottom of the waterblock? There is no way you should be hitting those temps with a H100, unless you have very poor airflow to the radiator.

 

[Termie]

OP, I have the exact same setup, and I'm pretty sure that you have something wrong with your cooler. There's nothing wrong with the "auto-overclock" at 3.9GHz/1.18V. That's totally within reasonable limits and should not cause these temps.

I have been a bit surprised that my H100i wasn't significantly better than air coolers I've used, but with my CPU at 4.5GHz using around 1.3V, the CPU only hits 95C or so in Intel Burn Test, which is more strenuous than Prime 95.

If you bought the cooler used, I'd consider trying to get it warrantied.

EDIT: What TIM are you using, and are you reapplying after each re-seating?

 

[Gr3y Wolf]

This is worth a try. Are you sure you removed the plastic cover on the bottom of the waterblock? There is no way you should be hitting those temps with a H100, unless you have very poor airflow to the radiator.

Lol, i seriously doubt i would have missed something as obvious as that... But hey, all suggestions are welcome

As for airflow, it is good. The rad is on the outside, with the 2 fans inside pulling cold air through the rad - if i put my hand near the rad i can feel cold air being pulled through my fingers.

 

[Gr3y Wolf]

OP, I have the exact same setup, and I'm pretty sure that you have something wrong with your cooler. There's nothing wrong with the "auto-overclock" at 3.9GHz/1.18V. That's totally within reasonable limits and should not cause these temps.

I have been a bit surprised that my H100i wasn't significantly better than air coolers I've used, but with my CPU at 4.5GHz using around 1.3V, the CPU only hits 95C or so in Intel Burn Test, which is more strenuous than Prime 95.

If you bought the cooler used, I'd consider trying to get it warrantied.

EDIT: What TIM are you using, and are you reapplying after each re-seating?

Yeh, i didnt think i should be getting these temps - even with a higher voltage...

The guy i bought the PC included all invoices to the various parts - he said the entire built is less than 5 months old, so i guess i could get it warrantied...

Yes i made sure to clean off the original TIM before applying the other, which is Thermalright Chill Factor III.

 

[Squeetard]

L if i put my hand near the rad i can feel cold air being pulled through my fingers.

You should be getting hot air blowing out the rad under load. Even after idling a while. That cooler may be gibbled.

What are the normal temps for these corsair closed units? I have 2-7970's and a 4770k @ 4.5 in a water loop with a 240mm rad and a 120mm rad. My cpu load temps never top 65 while in p95 and never top 55 while gaming.

 

[cytg111]

Yes, eBay....

Yeah i am aware that you have to raise the voltage, i am currently running at 4.2Ghz with voltage at 1.16v, but after 2 mins of Prime the 'CPU' (not core this time) is hitting 100C....

I dont get it... why is this thing running so damn HOT???

Sorry guy, but join the club. Your story is far from alone, do a quick search just here and you'll see. I am currently running without any kind of turbo and all other settings stock and it will still throttle eventually. Never in history (please correct me if i am wrong?) has any single CPU spawned so many complains about temps and throttling. The "Intel Representatives Jihadists(tm)" have been down this road SO many times now, "you cooling is wrong" "your voltages are wrong" "MultiCoreTurbo is doer of all evel" "you are wrong" etc etc etc. Yet stories like your own is adding to the undeniable statistical evidence that this processer is not quite right.
I mean, either we are all morons or there have to be something about it right?
With the current TSX fiasco maybe mass will build for a class action lawsuit. Just to see the "Intel Representatives Jihadists(tm)" group squirm would be worth it .. sry guys but you deity is *censored*

Cytg, calling other posters "Intel Representatives Jihadists" will not be tolerated. This thread is about the OP's chip, not other people
-ViRGE

 

[Chipfiref]

Yeah I think you should either delid that particular 4770K or get a new 4770K in the chip lottery.

I delidded and saw 20C reduction in temps.

What apparently makes this a chip lottery is the silicone glue used to attach the heatspreaded to the pcb of the 4770K as well as possibly less-than-ideal TIM and/or TIM application under the heatspreader.

You seem to have symptoms of uneven/inconsistent contact of the chip to the heatspreader - radical differences in the core temps and just high temps - nothing you can do unless you delid your chip. It is not too hard to fix it and there is not much of an alternative.

 

[Gr3y Wolf]

You should be getting hot air blowing out the rad under load. Even after idling a while. That cooler may be gibbled.

What are the normal temps for these corsair closed units? I have 2-7970's and a 4770k @ 4.5 in a water loop with a 240mm rad and a 120mm rad. My cpu load temps never top 65 while in p95 and never top 55 while gaming.

I have the rad on the outside of the case, with the fans inside which 'pull' air from outside through the rad... which is why i feel cold air pulling through my fingers.

I am not sure what temps i should be getting with this cooler, but i know it should be a lot better than what i am currently getting.

 

[Gr3y Wolf]

Yeah I think you should either delid that particular 4770K or get a new 4770K in the chip lottery.

I delidded and saw 20C reduction in temps.

What apparently makes this a chip lottery is the silicone glue used to attach the heatspreaded to the pcb of the 4770K as well as possibly less-than-ideal TIM and/or TIM application under the heatspreader.

You seem to have symptoms of uneven/inconsistent contact of the chip to the heatspreader - radical differences in the core temps and just high temps - nothing you can do unless you delid your chip. It is not too hard to fix it and there is not much of an alternative.

Yeah, unfortunately i am more and more thinking that i may have to delid it... Although i would rather avoid having to do this for obvious reasons... But i think i may have one more option, and that is to RMA the CPU - the guy i bought it from included all the original invoices, and he said all the parts are less than 5 months old, so i think i may still be covered by warranty... that is assuming that the warranty is transferable.

 

[Gr3y Wolf]

Sorry guy, but join the club. Your story is far from alone, do a quick search just here and you'll see. I am currently running without any kind of turbo and all other settings stock and it will still throttle eventually. Never in history (please correct me if i am wrong?) has any single CPU spawned so many complains about temps and throttling. The "Intel Representatives Jihadists(tm)" have been down this road SO many times now, "you cooling is wrong" "your voltages are wrong" "MultiCoreTurbo is doer of all evel" "you are wrong" etc etc etc. Yet stories like your own is adding to the undeniable statistical evidence that this processer is not quite right.
I mean, either we are all morons or there have to be something about it right?
With the current TSX fiasco maybe mass will build for a class action lawsuit. Just to see the "Intel Representatives Jihadists(tm)" group squirm would be worth it .. sry guys but you deity is *censored*

Yeah i noticed a few threads with similar stories relating to the 4770k, personaly i think Intel should be held accountable for these issues... I know that not all CPUs are created equal, but the differences between the same model CPUs should not be that large...

Would not be surprised if someone tried to open a class action lawsuit...

 

[crashtech]

Just out of curiosity I would want to try an air cooler on it in the unlikely event there is some flaw in the cooler. 3.9GHz and less than 1.18V should probably be within the capability of the stock cooler.

 

[cytg111]

Wonder how many haswell systems from Dell, HP etc throttle without the users knowing about it.. Cause it do throttle quite well, droping like 20mhz at a time until temp is stable at ~99.9 degrees.
Maybe someone should code a little app for the taskbar, a little diode that turns from green to red if throttling has occured and a little tip on what it means.. would sell pretty good for free "Is someone selling you bunk stuff? Download this for free" .. if it works for the russians im sure it will work for us.

 

[cytg111]

Just out of curiosity I would want to try an air cooler on it in the unlikely event there is some flaw in the cooler. 3.9GHz and less than 1.18V should probably be within the capability of the stock cooler.

He did return to 24 degrees after stopping the test.. I dont know what his ambient temps are like but 35'ish is normal IIRC, so thats a full 10 degrees lower... Something should be working?

 

[Gr3y Wolf]

Just out of curiosity I would want to try an air cooler on it in the unlikely event there is some flaw in the cooler. 3.9GHz and less than 1.18V should probably be within the capability of the stock cooler.

I was actualy considering trying the stock cooler on it, the guy i got the system from included all the boxes and extras, so it possible to try it... although i dont relish having to change heatsinks.

 

[Gr3y Wolf]

He did return to 24 degrees after stopping the test.. I dont know what his ambient temps are like but 35'ish is normal IIRC, so thats a full 10 degrees lower... Something should be working?

Ambient temps were about 23c, so it was 1c above ambient, with occasion drops to ambient. But this was with 'Multicore Enhancement' enabled in the bios, with it switched off temps rose to about 30c at idle, but dropped by about 10c at load at stock voltage.

 

[crashtech]

I'm not trying to act as an Intel apologist, but something seems wrong if it is throttling at the settings you describe. I'm even questioning if voltage is being misreported somehow, because one hardware monitor field reports the CPU package dissipating 125W, well in excess of what it should at those settings.

 

[Kenmitch]

Just out of curiosity I would want to try an air cooler on it in the unlikely event there is some flaw in the cooler. 3.9GHz and less than 1.18V should probably be within the capability of the stock cooler.

Stock cooler would throttle most likely.

With HT disabled as stated by the OP the temps looked to drop the normal amount they would.

I'm leaning towards he lost the thermal lotto at this time.

The H100i mounted on top of case with fans pulling air in isn't ideal. Have you tried another way yet?

 

[crashtech]

I glossed over the fact the it is Prime95 being used. Personally I use Linpack because as far as I have seen it's more of a real-life worst case, and if you think it's not, you just test with the app to be used instead.

 

[Gr3y Wolf]

Stock cooler would throttle most likely.

With HT disabled as stated by the OP the temps looked to drop the normal amount they would.

I'm leaning towards he lost the thermal lotto at this time.

The H100i mounted on top of case with fans pulling air in isn't ideal. Have you tried another way yet?

The only other way i have had the H100i is the same position, but with the fans pushing warm air out of the top of the case through the rad... but that gave worse temps than i have now. I could mount the rad inside and the fans outside pushing cold air through the rad, but because there is no dust cover on the top of the case, the rad would get dusty quickly and would be more difficult to clean if placed inside...

 

[Gr3y Wolf]

Quick update:

I have been doing some tinkering in the BIOS, basicaly i have undervolted the CPU to (for the moment at least) 1.004v, and for the moment that seems stable in Prime... Doing this has caused temps to drop, and i have yet to see the CPU temp exceed 72C and the max Core temp is 73C, so, so far so good... Although i still shouldnt have to resort to undervolting... ah well.

 

[Termie]

Undervolting is fine, but it doesn't explain why your cooler is working so poorly.

I'd suggest picking up an inexpensive air cooler from cooler master or thermalright and giving it a try.

The H100i really isn't a great general purpose cooler. If the air cooler works better, warranty the H100i, if the air cooler doesn't work better, you bought a very subpar 4770K. There are plenty of them to flood the used market.

 

[Gr3y Wolf]

Undervolting is fine, but it doesn't explain why your cooler is working so poorly.

I'd suggest picking up an inexpensive air cooler from cooler master or thermalright and giving it a try.

The H100i really isn't a great general purpose cooler. If the air cooler works better, warranty the H100i, if the air cooler doesn't work better, you bought a very subpar 4770K. There are plenty of them to flood the used market.

I may just do that... Thanks for the suggestion.

 

[SickBeast]

Ok OP I was having similar heat problems with my Corsair H60 and I resolved two problems with it today:

1. I had to put washers onto the backplate between it and the motherboard to help apply more pressure between the CPU and the waterblock.

2. There was a small capacitor near my socket that was preventing the H60 from making good contact with the CPU.

Now that I have done that my temps have dropped 20C under load.

Have a look at yours and see if this can help you. If there is indeed a capacitor interfering, try rotating the waterblock by 90 degrees.

I put the washers underneath the rubber ones that came with it because AFAIK they are conductive and I didn't want them touching my motherboard.

 

[lavaheadache]

the latest version of prime95 uses AVX and instantly causes my cpu to spike to 100c too. Download an older version of prime and your temps will be normal again.