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Why are my temps so high? i7 4ghz overclock

Last response: in Overclocking
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August 11, 2010 3:33:29 AM

Hi all I'd really appreciate some help. My i7 860 temps are out of control and perhaps someone has some input as to why. I idle at about 55 degrees and hit about 75 under normal gaming load, but about 1 min into prime95 benchmarking my temps are hitting mid to high 90's and continue to climb.

Here is my set up.
Intel Core i7 860 @ 4ghz
MSI P55-GD80 BIOS v1.9 (newest as of 2010-06-18)
Corsair H50 cooler push/pull modded with CM blade master fans set to blow out the back of my case
CORSAIR DOMINATOR 8GB (4 x 2GB) CMD4GX3M2A1600C8 DDR3 1600 timings 8-8-8-24 1.65v http://www.newegg.ca/Product/Product...82E16820145265
dual WD 1001FALS 1TB hard drives
dual BG NVIDIA GeForce GTX 275 in SLI
Creative SB X-Fi XtremeGamer
Thermaltake TR2 RX 1000w
CM Sniper with 3 200m fans (font and side pannel intake and top exhaust) I've also added a CM 120mm on the bottom of the case in front of the PSU intaking air and the Corsiar fan that came with the H50 in a Scythe Kama bay in the front of the case intaking air

My RAM is cold to the touch and my wiring is clean not obstructing airflow.

My BIOS settings are as follows:

Intel EIST - disabled
C1E support - disabled
CPU Base Frequency - 200
OC Stepping - disabled
CPU Ratio - 20
RAM timing 9-9-9-24 (very liberal)
Memory Ratio 4 which makes 1600mhz (again very liberal)
QPI Ratio 16
vDroop - low
Spread Spectrum - disabled

Voltages are as follows:
CPU Voltage - 1.231
CPU VTT - 1.358
DRAM Voltage - 1.655
everything else is at default
August 11, 2010 6:21:56 AM

Check if your CPU cooler is seated correctly and that your thermal paste is applied evenly.
August 11, 2010 5:47:41 PM

Aside from the PSU, isn't there a fan which exhausts airflow from the back of the case?
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a b K Overclocking
August 11, 2010 11:03:38 PM

What are the temps like at stock everything. If they are still high then its the cooler 1 way or another. If its installed correctly my guess is it could be that the graphics card are putting out alot of heat and its venting out through the H50, you could try reversing all your case fans and the H50 fans so H50 intakes through the back and also intake at top and exhaust through side and front this would make sure the processor gets the cool air but may heat up the graphics cards instead.
a c 86 K Overclocking
August 12, 2010 4:35:30 AM

JC had good points. Your fans might be those very weak CM fans. There is a few CM fans who's ratings are total hogwash. You need decent fans to push through the restriction of the fins, it's the pressure of the fans AND the CFM that matter.

Reverese the airflow so your using room air into the rad. Then reverse the rest of your case fans to help too.

If none of this works you got a hot chip and a okay cooler. The H50 is as good as a top air cooler, no more. It's not real watercooling as we say.
a b K Overclocking
August 12, 2010 5:17:59 AM

EVERYONE IS FORGETTING THE SIMPLEST ANSWER - What is the room temperature you're gaming at? If you're in a summer room thats 90degrees Farenheit, then that's why your temps are so high!
August 12, 2010 4:42:00 PM

Try running the same tests with your CPU set to stock speed.


MRFS
!