VERY high temps with h100i and 6700k?

[nixtone]

Hey guys just upgraded from h80i to h100i v2.

 

My 6700k idles normally it seems but under load in easy games like csgo it hits 85 degrees sometimes higher.

In stress tests it hits quite high too. What could be the issue? I've got it top mounted with 2 sp120 fans underneath blowing air out of the case.

 

This is a pic under realbench load:

 

 

Everything is stock. No OC.

87 degrees?
Ambient temps are probably around 30 degrees maybe a tad less.

Any ideas? Thanks

 

[Glennieboyyy007]

try reseating the cooler and look if the thermal paste had enough spread on the cpu from the last mounting

[Cyberspirit]

@nixtone Try what @Glennieboyyy007 suggested and if that doesn't help maybe you got unlucky and got a broken unit.

 

What kind of thermal paste did you use?

[nixtone]

I used some generic kind and the preapplied paste. If I remember correctly there’s quite a lot on there. I bought some proper stuff as well I might have to reapply it

 

Could it be because it’s not tight enough? I think it’s about medium tightness 

[Cyberspirit]

@nixtoneYou could try tightening it a little more just make sure you do it evenly and carefully. Also people usually say you have to do it in a cross pattern to make the paste spread evenly.

[nixtone]

So, this is really odd. I tighted it up it was kinda loose (not loose enough that it could move but the screws needed heaps of tightening)
Anyway, I went into bios and set everything to default, reloaded XMP and clicked 'no' when it asked to change intel clock options.

 

Now it's hitting max 67~ degrees instead of 88.

Wtf? Could tightening it really make that much difference?

 

That's honestly insane

 

[thorsong]

Is this a new install or an AIO you have been using for a while? AIO's do loose coolant over time. If it isn't the mounting causing the issue, your pump could be going.

whoops. I missed that this was an upgrade from an H80.

[vESP]

3 minutes ago, nixtone said:

So, this is really odd. I tighted it up it was kinda loose (not loose enough that it could move but the screws needed heaps of tightening)
Anyway, I went into bios and set everything to default, reloaded XMP and clicked 'no' when it asked to change intel clock options.

 

Now it's hitting max 67~ degrees instead of 88.

Wtf? Could tightening it really make that much difference?

 

That's honestly insane

 

if there is a loose fit on the cooler there might have been a air gap where a good transfer was taking place. u basically have to hand tighten it all to where u cant tighten it anymore. 

just dont do it with a screw driver if you know what i mean

[thorsong]

3 minutes ago, nixtone said:

So, this is really odd. I tighted it up it was kinda loose (not loose enough that it could move but the screws needed heaps of tightening)
Anyway, I went into bios and set everything to default, reloaded XMP and clicked 'no' when it asked to change intel clock options.

 

Now it's hitting max 67~ degrees instead of 88.

Wtf? Could tightening it really make that much difference?

 

That's honestly insane

 

Yes. All it takes is a tiny gap. Heat cannot transfer well over dead air space, or a thick coat of thermal paste. 

[vESP]

Just now, thorsong said:

Yes. All it takes is a tiny gap. Heat cannot transfer well over dead air space, or a thick coat of thermal paste. 

i didnt have my waterblock on tight when i got it the temps changed when i realigned and put more tightness on the screws

[nixtone]

Interesting. I realised in my last post when I enabled xmp i said I hit 'no' and I realised it disabled my turbo boost meaning I only hit 4ghz instead of 4.2

I re-enabled xmp and selected 'yes' and it changes my voltage to 1.42 or something? That's why it's so hot.

Wtf? I changed voltage to adaptive and change it to 1.3 max and my temps are super low now.

Wtf?

Now I'm averaging under 60 degrees and hitting 60 degrees MAX.

Could I go even lower with the voltage? 1.3 seems high for stock

[vESP]

2 minutes ago, nixtone said:

Interesting. I realised in my last post when I enabled xmp i said I hit 'no' and I realised it disabled my turbo boost meaning I only hit 4ghz instead of 4.2

I re-enabled xmp and selected 'yes' and it changes my voltage to 1.42 or something? That's why it's so hot.

Wtf? I changed voltage to adaptive and change it to 1.3 max and my temps are super low now.

Wtf?

Now I'm averaging under 60 degrees and hitting 60 degrees MAX.

Could I go even lower with the voltage? 1.3 seems high for stock

keep dialing it down until the system starts to need more power.  i think my board is running my 6700k at 4.4ghz on what ever voltage it deems ok. but i got a big rad setup so it compensates for any extra voltage heat. 

[vESP]

14 minutes ago, nixtone said:

Interesting. I realised in my last post when I enabled xmp i said I hit 'no' and I realised it disabled my turbo boost meaning I only hit 4ghz instead of 4.2

I re-enabled xmp and selected 'yes' and it changes my voltage to 1.42 or something? That's why it's so hot.

Wtf? I changed voltage to adaptive and change it to 1.3 max and my temps are super low now.

Wtf?

Now I'm averaging under 60 degrees and hitting 60 degrees MAX.

Could I go even lower with the voltage? 1.3 seems high for stock

about 90c is where you should be woried at max. 80 and below is where i would be comfortable. its to be expected with a AIO

 

 

EDIT: added idle and load temps for my 6700k

 

 

[nixtone]

Sweet sweet.

It's at 1.22v atm and under Intel XTU I'm averaging 51 degrees. When I booted the PC and started realbench it hit a one time high of like 63 or something.

Super good.

EDIT: Idle temps dropped 10 degrees as well.

[vESP]

Just now, nixtone said:

Sweet sweet.

It's at 1.22v atm and under Intel XTU I'm averaging 51 degrees. When I booted the PC and started realbench it hit a one time high of like 63 or something.

Super good.

added images of my temps in a edited pic

[nixtone]

 

18 minutes ago, vESP said:

added images of my temps in a edited pic

Very nice. My idle is probably the same as my ambient atm, hitting mid 20's (feels warmer, I live in the tropics)
Load in csgo was 55 degrees max. Might try and OC. What voltage is yours? And 4.4ghz ye?

 

EDIT: My idle: 

[vESP]

7 minutes ago, nixtone said:

Very nice. My idle is probably the same as my ambient atm, hitting mid 20's (feels warmer, I live in the tropics)
Load in csgo was 55 degrees max. Might try and OC. What voltage is yours? And 4.4ghz ye?

i dont use hw monitor much so i cant really tell hopefully this is helpful for you

[thorsong]

Is that really as low as the H100 will pull under load? Have you set your own fan and pump curve? I have a 6700 with a Noctua NH-C14s with a second NF-A14 installed and under torture test the max I can get it to hit is about 54C. 
lol. I also just notice you have the same motherboard I do as well. The Z170 Extreme 7+ kicks ass.

[nixtone]

20 hours ago, thorsong said:

Is that really as low as the H100 will pull under load? Have you set your own fan and pump curve? I have a 6700 with a Noctua NH-C14s with a second NF-A14 installed and under torture test the max I can get it to hit is about 54C. 
lol. I also just notice you have the same motherboard I do as well. The Z170 Extreme 7+ kicks ass.

Quick update. I'm running 1.36v (pre bad chip) @ 4.5ghz and with very high ambient temps I'm hitting 74 max under stress. Pretty nice.

[vESP]

20 minutes ago, nixtone said:

Quick update. I'm running 1.36v (pre bad chip) @ 4.5ghz and with very high ambient temps I'm hitting 74 max under stress. Pretty nice.

That's the same as my chip at the same temp,  speed and voltage

[pyrojoe34]

Read my signature and make sure you're not getting issues with other programs fighting Link (HWmonitor, HWinfo, CAM, and AIDA64 all have known issues).

 

Second, the mount on those coolers is critical and makes a huge difference. Check what the water temperature is after extended load. After a 10-15min stress test, the water temp should be within 25C of the CPU temp (e.g. if the CPU temp is 65C, the water temp should be 40+C). If the water is not heating up with the CPU then you likely have a bad mount and need to remount it. The tubes of that AIO are very thick so make sure you mount the block first, with the tubes perfectly relaxed, to get a flush mount. Then you can mount the rad into the case and bend the tubes.