4790k with D-15 strange temps

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Tyler Watkins

Reputable
Aug 1, 2014
25
0
4,530
Hey guys. I got a strange problem. Let me tell you first my CPU is not OCed. I have a min of 27c and 38c at max. This is while typing this. When I use Aida64 my temp skyrocket. My min is 57c and max 74c. Now while I'm doing the test my temps are constantly changes they never stay the same. Not even for a second. I'm arctic silver 5. I've remounted the cooler and reapplied paste 3 times. My temps got a little bit better because I was hitting 80c. Should I sent for RMA?

My motherboard is a ASUS Maximus Vii Hero.
 
Solution
vMax
Hi Tyler,

have been through this with the core i7-4790K and Maximus Hero VII and have manged to drop temps. Something to do with Bios settings... You will see some threads here about this already. So after looking at things in a bit more detail for me to get the temps of the i7-4790k to run at mid 20's idle and mid 60's 100% load in prime95 at 4.4ghz, 4.5 or (4.7GHZ temps reach 80 degrees) without touching voltage fully stable, (screen cap below) I have to run the following settings in bios on Maximus Hero vii (should work on other boards with similar setup).

Everything in auto except the following:

AI - Manual
BLK - 100.0 sure you could push this ever so slightly
Multi-core Enhancement - Disabled
CPU Core Ratio - Sync All Cores
44 i...
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Sn1992

Honorable
Jul 13, 2013
132
0
10,710
I personally am using the same 4790k
And let me tell u that 57 min is very high i stay in 35c ambient temp and i am using kraken x61 my temps are 30 at minimum and at stress testing in occt its 66c max and my cpu is oc'ed to 4.6 at 1.265 volts

Now what i suggest is first do a fresh install
Steps for it
1. Remove heat sink and clean the AS5 paste from it using isoprpyl solutn
2. Clean the past from the cpu as well
3. Now put a pea sized drop of nth1 paste on cpu and re install cooler

Lemme know the results
 
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vMax

vMax

Splendid
Aug 7, 2006
3,445
353
25,690
Hi Tyler,

have been through this with the core i7-4790K and Maximus Hero VII and have manged to drop temps. Something to do with Bios settings... You will see some threads here about this already. So after looking at things in a bit more detail for me to get the temps of the i7-4790k to run at mid 20's idle and mid 60's 100% load in prime95 at 4.4ghz, 4.5 or (4.7GHZ temps reach 80 degrees) without touching voltage fully stable, (screen cap below) I have to run the following settings in bios on Maximus Hero vii (should work on other boards with similar setup).

Everything in auto except the following:

AI - Manual
BLK - 100.0 sure you could push this ever so slightly
Multi-core Enhancement - Disabled
CPU Core Ratio - Sync All Cores
44 i have set to 44 but have tested at 45 no problems (4.5ghz)
EPU Saving mode disabled
CPU level up - 4.00g
Extreme Tweaking disabled
Memory at stated speed... i.e mine is at 1600 (i have 32gb installed) set yours to whatever it is.

The above should make your cpu run full at 4.4ghz with no heat penalty and 4.5 as well... again being a noob i have no idea why. If i set to xmp it seems to set the temps high. Above settings will definitely keep things running cool and you can overclock at cool temps but will have to play with vcore to go above 4.6... Definitely a bios setting issue.

Again please be aware i am new at this but the above works for me and keeps temps very low mid 20's idle and no more than 63 degrees in prime95.

Screenprint 4.6ghz




Even at small fft or whatever the hardcore moment is with Prime95 it does not go over 64/65 degrees. I have a H100i watercooler but your temps should be a bit lower than you are getting.

Just cut and paste from before as you will see this problem in the forums here and elsewhere.
 
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