Out of the loop. No pun intended

Hello,



I have a couple of questions about the best way to position the case fans as well as Kaby Lake CPU temps and the Corsair H80i v2.

I haven't messed with overclocking or customizing since Ivy Bridge and before that, since the BX440 chipset was Intels greatest.

Corsair H80i v2

I've installed this on a GA-Z270X-DESIGNARE. The backplate has 4 threaded poles that stick through the 4 holes on the motherboard then 4 stand-offs are screwed into the threaded poles which keep the bracket tight. Or supposed to anyway.



Since each 'threaded pole' on the backplate comes through the hole in the motherboard, even when you tighten the stand offs it seems there was a little bit of play. Yes, I used the correct bracket and stand offs for 115x. DAE who uses this AIO with a similar board notice this too? Did you add washers or just use the way it came?


i7700K

I am also noticing -

"I have found that the i7-7700k reports a momentary (a second or less) temperature spike +25 > 35 degrees Celsius anytime a program is opened, a webpage is opened, a background app runs etc. The temperature blip cascades through the cores in random order; not the same every time. This causes my heatsink fan to constantly cycle up"

I am not sure if this was happening before the AIO was installed but it appears to a thing.

https://www.kotaku.com.au/2017/05/intel-dismisses-concerns-over-core-i7-7700k-temperature-problems/

https://forums.intel.com/s/question/0D50P0000490E0VSAU/thermal-sensor-issue-i77700k?language=en_US

Is there a fix for this? Is it related to the TIM? Is this just how the 7700k is?


Thermaltake Core x5

My last question is about how to place the fans in the case for the best air flow and if I should consider different sized fans for better cooling.


This is the case and the available fan options. Currently I have the H80i as rear exhaust. I have (2x) 200mm fans on top pulling air in and a 200mm fan in front also pulling air into the case.







Any suggestions advice etc etc. is greatly appreciated.

TIA

Thanks

I am also an ASUS fan. Ever since way back. Ironically I just swapped to the Gigabyte . I had a 270 TUF Mark 1 in there but the Fan Xpert never worked also the NVME would get crazy hot under the armor. I tried different BIOS versions but still no joy.

The temp spike doesn't seem to be limited to liquid coolers. Any how I've ordered a gang of 120mm fans, will pull the 200mm's and replace the h80 v2 with a
Thermaltake Floe Triple Riing RGB 360 TT Premium Edition and Ill mount that on top as exhaust.

Currently the 2 200mm om top are exhaust as well as the AIO mounted in the rear. There is 1 200mm pulling air in on the front.

So far so good with throttling. Under 100 load temperatures never go above 75c with the Corsair AIO set on quiet. I would like it cooler though.

That dark rock cooler looks sick!

you need to set a custom fan curve so the fan doesnt react to the normal temp blips. i usually look at what the max temp is for those blips and set the fan so it doesnt ramp up until a few degrees after the max blip. say it blips to 40c keep you fan at ~30% until 45c and then ramp up to 100% at 80c.
for the fans, i would have the aio as an intake in the front, another fan or two below it and then top and back as exhaust.

pendragon1 said:

you need to set a custom fan curve so the fan doesnt react to the normal temp blips. i usually look at what the max temp is for those blips and set the fan so it doesnt ramp up until a few degrees after the max blip. say it blips to 40c keep you fan at ~30% until 45c and then ramp up to 100% at 80c.
for the fans, i would have the aio as an intake in the front, another fan or two below it and then top and back as exhaust.

Click to expand...

Thanks. Yes, I've messed with a custom curve and the fan doesn't spin up on blips. The silent setting on the Corsair software also works for that too. I just wanted the temp spike blips gone. The spikes aren't as high as the quote in my OP. The max spike has been +8c but I don't think it should be doing that. Is the sensor messed up on these?

My other concern is the back plate for the H80i v2. You see how in the diagram the 4 threaded posts of the back plate stick through the motherboard and the stand offs screw into them securing the back plate? Well, those 4 posts go through the board and stick out a little too far so when the stand offs are screwed in all the way, the back plate wiggles. It doesn't wiggle after the AIO heat sync is attached but I suspect it is from the tension caused by the cooling lines. I don't think the heat sync is making proper contact with the lid. I am not seeing better cooking than I did with a Noctua NH-L9x65.

Example reference photo. See how they stick through too far and with the stand offs in all the way the back plate is not tight.

the last corsair i put on an intel setup was wigly too. you could always take it off and check the TIM spread. oh and the blips are totally normal all cpus with an ihs do it due to the indirect die cooling. it takes time for the heat to get drawn away so you see a blip. my ryzen chip blips from 30 to 40 all the time. so did my fx chips.

pendragon1 said:

the last corsair i put on an intel setup was wigly too. you could always take it off and check the TIM spread. oh and the blips are totally normal all cpus with an ihs do it due to the indirect die cooling. it takes time for the heat to get drawn away so you see a blip. my ryzen chip blips from 30 to 40 all the time. so did my fx chips.

Click to expand...

Oh.

Dang, will de-lidding and and replacing the stock TIM on the die with liquid metal stop the blips?

Bae Tard said:

Oh.

Dang, will de-lidding and and replacing the stock TIM on the die with liquid metal stop the blips?

Click to expand...

nope and they are really nothing to worry about if you have your fans set right. it will lower temps a few degrees though but you'll still get blips. even direct die cooling youll get a slight blip. its just the slight change in wattage as the cpu does something.
if you dont want to see it, you could maybe lower the polling interval