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i7-7700k Temperature Issue

post #1 of 46
Thread Starter 
Friend just built a new PC and his temperatures are awful and I don't quite know enough to troubleshoot it for him. Some real quick system specs:

i7-7700k - (no overlock)
Cryorig C7 Cooler
Asus Z270 TUF Mark 2 motherboard
WIndows 10

His idle is around 40C which seems way too hit and he clears 90C just from playing a few games of Overwatch. In general it's closer to 80-85 under load and then bursts into the 90s while playing.

Here's a dump from HWINFO:



I had him re-seat it already just as a precaution but that changed nothing. Part of me wants to blame ASUS auto voltages but I don't know enough to determine if that's really the issue. Also thought maybe the cooler isn't good enough for an i7-7700k but he's not overclocking so I assumed it should be fine.

[e]
Edited by Boozie - 4/19/17 at 9:39am
post #2 of 46
Kind of typical for an OC'd non delidded 7700k.

However, since the CPU is not OC'd, I would recommend using manual volts on the mobo, lowering the vcore as much as possible and testing for stability. It should reduce the temps some. Also, hopefully he used good rated thermal paste.
 
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BitoHeaven
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Cigar ATX PC
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Intel i7 4770k @ 4.5GHz Asus Maximus VI Gene Gigabyte R9 290 @ 1160MHz/1350MHz Gigabyte R9 290 @ 1160MHz/1350MHz 
RAMHard DriveHard DriveOptical Drive
G.Skill Trident X 2X8GB DDR3 2400MHz Samsung 840 PRO 256GB  Seagate Barracuda 7200.14 3TB SATA III 6Gb/s 64... Pioneer Blu-ray Burner 
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post #3 of 46
i can maybe lower vcore to 1,1 or 1,15. hope it helps?
post #4 of 46
How much thermal paste did he put on? Also, I've read some reviews for that cooler and it should be more than enough for that sort of setup on stock.

Can you take a picture of the mounting so we can see if it's flush etc?
post #5 of 46
Yea the stock VID on his chip is crazy high (mine is around 1.184 with XMP) and that really isnt helping. Also to be honest youre right, around 1.25 volts is approaching the limits of what the biggest air coolers can handle on an average non delidded 7700K from my own experience and your friends stock vcore is already way over that.

Try undervolting it to 1.1-.1.15, you'd also have to test for stability though, I used Realbench for at least 4 hours this time around rather then Prime or IBT, but be prepared to add a notch or 2 if you get BSOD's or hangs, Realbench isnt as good as finding instability as Prime but Prime gets the temps scary high very quickly.

Its also worth looking into some more case fans if its a basic set up. If the C7 is eating all the heated exhaust of a high TDP GPU it wont help either. 2 decent front fans in and one out is a good place to start. Check out Doylls guide if you havent already

Other voltages to check are VCCIO and VCCSA, if for some reason auto volts is using more then 1.15ish that can add a few degrees, and you dont need anywhere near that for stock RAM speeds, somewhere around 1 volt should be fine but again youd need to do a bit of HCI memtest and tinkering to be sure it was stable.

As above, ensure the cooler is mounted properly, but I dont have a hard time believing the temps with that VID and cooler I'm afraid.
post #6 of 46
Thread Starter 
Thanks everyone for all the feedback it's really appreciated. I feel pretty confident he has mounted it properly as he already re-seated it after the first time. I can provide photos of the paste after dismounting the fan (the remnants on the cpu and heatsink before cleaning) and the new amount of paste before re-seating if you want.

Unfortunately I am a huge noob when it comes to BIOS/Voltage settings. Is there anyway we can try to lower his idle and his load temps at the same time? I don't really know adaptive mode vs offset mode. I don't really know the settings very well. If anyone could help walk me through the BIOS settings I'd really appreciate it.

Manual is here:

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/TUF_Z270_MARK_2/E12291_TUF_Z270_MK2_BIOS_EM_WEB_20170411.pdf?_ga=1.28827260.1591894188.1490736064

Thanks again for all the help.
post #7 of 46
Quote:
Originally Posted by Boozie View Post

Thanks everyone for all the feedback it's really appreciated. I feel pretty confident he has mounted it properly as he already re-seated it after the first time. I can provide photos of the paste after dismounting the fan (the remnants on the cpu and heatsink before cleaning) and the new amount of paste before re-seating if you want.

Unfortunately I am a huge noob when it comes to BIOS/Voltage settings. Is there anyway we can try to lower his idle and his load temps at the same time? I don't really know adaptive mode vs offset mode. I don't really know the settings very well. If anyone could help walk me through the BIOS settings I'd really appreciate it.

Manual is here:

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/TUF_Z270_MARK_2/E12291_TUF_Z270_MK2_BIOS_EM_WEB_20170411.pdf?_ga=1.28827260.1591894188.1490736064

Thanks again for all the help.

The easy way would be to return the chip and get another, overheating at stock is a legitimate reason for return and that VID is very high.

I'd say the idle temps could be as a result of poor case airflow, could you put up a picture of the case internals?

The hard way: Under volting works the same as overclocking it will take a fair amount of time, you need to find the amount of voltage that the chip is stable at.

https://rog.asus.com/articles/guides/the-kaby-lake-overclocking-guide/

http://www.overclock.net/t/1621347/kaby-lake-overclocking-guide-with-statistics

Everything that I could explain to you is explained far better then I could in these guides. redface.gif
post #8 of 46
I would try to re-seat his CPU Cooler. Clean off the paste and try to install it again. I had temp issues too and then I re-seated my cooler and the temps are a lot better.
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post #9 of 46
The cooler is tiny and it's performance not very good as result.

Still the toothpaste interface material on that 7700K might be terrible as at stock it should not go this high with temps. unless the board is pushing some ridiculous volts but 1.325V doesn't seem that high to me for SL.
Check your volts, try better cooler, but probably just exchange your CPU.

A tight install of a cooler can give you 5C difference vs not tight enough, but you won't see something like 20C differences unless you really messed up.
post #10 of 46
Quote:
Originally Posted by JackCY View Post

The cooler is tiny and it's performance not very good as result.

Still the toothpaste interface material on that 7700K might be terrible as at stock it should not go this high with temps. unless the board is pushing some ridiculous volts but 1.325V doesn't seem that high to me for SL.
Check your volts, try better cooler, but probably just exchange your CPU.

Its high for stock on Kaby Lake, I dont know about Skylake. If you look at the list in the Kaby guide with stats there's a reason nearly all of the entries are delidded. 1.36 volts is the median voltage for 5GHZ.
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