overheating or ok?

[fuzzy14]

So, I got my ASRock Z97 Extreme4 all setup with my i4790k and oc'd using ASRock standard software tweaker to 4.7 ghz. I'm using a Noctua DH-14. At Idle CPU is around mid 30C. The front most cooler fans isn't quite able to go to the bottom of the heatsink as the memory blocks it. It sticks out I guess 1/4". I cannot put on the side panel because it sticks out soo much. There is a case fan behind them (the power supply is on the bottom). I unplugged the top case fan as it was pushing air in (I think it would be better to reverse it?). I took the cooler off the cpu twice to verify the thermal paste is ok. I think one time I put way too much paste on, so I redid it (and sure enough there was too much on). BIOS is v1.10 (latest).

Now when I run Prepar3d v2.3 (a flight simulator) with built in aircraft, I get temps to 73C. When I fly the Captain Sim 777, I get temps above 80 and eventually to 99C. At which point, Windows 8 throws a CLOCK_WATCHDOG_TIMEOUT. From what I have read, this error indicates a CPU locking up (and possibly defective CPU).

If I OC to 4.5 ghz, my temps in P3D go to 73C with 777 and works ok.

[fuzzy14]

Re: overheating or ok?

Some corrections, I am now showing 60-65C with 777 and P3D at 4.6 ghz. It seems much better since I redid the thermal paste.

[Tralfaz]

[parsec]

Re: overheating or ok?

Several things to consider about your CPU temperatures:

Starting with Ivy Bridge "mainstream" CPUs (your i7-4970K is classified as mainstream), Intel stopped using solder between the processor die and the Integrated Heat Spreader (IHS) and now simply use standard TIM. Over clocking enthusiasts will de-lid Haswell CPUs to get better temperatures. They literally remove the top IHS, apply one of the liquid metal or standard TIMs, remove the glue used to hold the IHS in place, and then replace the IHS and mount the CPU in the socket. They can get temperature drops of 10C+ depending upon what they use.

Haswell processors run hot, probably hotter than any other processor, given their power usage. High over clocks (above 4.5GHz) will challenge any air cooler, even one of the best like your Noctua DH-14. Intel moved many of the processor voltage regulator components from the mother board to the CPU itself with Haswell processors, which adds to the heat output and difficulty in cooling them.

Your PC case sounds small, how many fans does it have?

Your 780 video card is probably dumping most of its heat into the PC case. When you run your flight simulator programs, they stress the video card and it creates a lot of heat. If that heat remains inside the PC case, then that warm air is being used to cool the CPU. That of course is not good for CPU cooling. Any idea what temperature your video card is at when using those programs?

Usually video games use much more GPU resources than CPU. Your flight simulators may be different, but I don't know. Any idea what your CPU usage is when they are running?

I could go on about how Haswell processors can create a lot of heat, but we really need you to answer the questions I included above first.

[- wardog -]

Re: overheating or ok?

So, I got my ASRock Z97 Extreme4 all setup with my i4790k and oc'd using ASRock standard software tweaker to 4.7 ghz.......

..........BIOS is v1.10 (latest).

Umm..... Latest BIOS for the z97 Extreme4 is 1.30, June 4 2014. Added was "2. Add i7-4790K, i5-4690K, Pentium Anniversary G3258 EZ-OC table."

[parsec]

Re: overheating or ok?

So, I got my ASRock Z97 Extreme4 all setup with my i4790k and oc'd using ASRock standard software tweaker to 4.7 ghz...

Umm..... Latest BIOS for the z97 Extreme4 is 1.30, June 4 2014. Added was "2. Add i7-4790K, i5-4690K, Pentium Anniversary G3258 EZ-OC table."

OMG, did not notice the auto OC and BIOS thing!

No wonder your temps are so high! It's a miracle they aren't higher! I can only imagine the auto OC settings for 4.7GHz!

No doubt using a high Adaptive voltage and a crazy high CPU Input voltage.

At 99C, which no doubt actually hit 100C+, the CPU begins to throttle itself, and lowers the CPU speed. The automatic CPU shutdown temperature is not to much above that, ~110C. Hardly a defective CPU.

The rated Tcaseover-heating, YES!!!

You know that a CPU OC like that is not guaranteed to not fry the CPU and mother board, right?

Forget 4.7GHz, keep it at 4.5GHz and be glad your latest TIM application improved things. You still need better case ventilation.

No offense my friend, but comparing the gift from Intel that Sandy Bridge processors are, to Haswell is night and day when it comes to CPU temperatures.

Sandy Bridge processors were the last mainstream Intel models to use solder under the IHS rather than TIM, and run super cool. My i7-2600K on a little Corsair H60 at idle with CPU power saving options enabled will dip below room temperature in Winter, below 20C. If my Haswell CPU dips below 30C at idle with power saving options enabled (CPU speed of 800MHz) on a Corsair H80 with two fans, I'm doing very well. This is also why your CPU temps are so good with a simple top down cooler. We WISH

[Tralfaz]

Re: overheating or ok?

No offense taken. I've read about the Haswell and how much heat they generate. I'd liquid metal it and be done with it, if it were mine.

[- wardog -]

Re: overheating or ok?

OMG, did not notice the auto OC and BIOS thing!

No wonder your temps are so high! It's a miracle they aren't higher! I can only imagine the auto OC settings for 4.7GHz!

No doubt using a high Adaptive voltage and a crazy high CPU Input voltage.

Hear hear !!! .................................................. ............................ natch that [s]I'd love to see some F12 BIOS screenshots at what 4.7 represented in the BIOS.[/s]

I'd love to see some screen grabs from within A-Tuning at what 4.7 represented

OP, FTW, Screenshots! Screenshots!

[fuzzy14]

Re: overheating or ok?

Correction, I am on v1.30 for UEFI.

I will have to check the video card temps. At one point, I did crank up the nvidia inspector settings and the fan on the video card did increase in speed. I have since then set them back down to normal levels.

I have flown for about 4+ hours at a time and the temp has stayed around 69-71C without any lock ups. Inside temp is 75F.

[parsec]

Re: overheating or ok?

The video card should be the component that is the most used/stressed when running a simulator like that or gaming.

Monitor the '780's temps while using the "777" simulator.

Wait, just noticed in your specs, are you using two 780's in SLI?

Plus, no offense about the auto OC setting screen shots that were asked for, we are just curious what they would be. They are ASRock's settings, not your personal choices.

[profJim]

Re: overheating or ok?

When using HWiNFO you can manually enable sensor logging that will save all sensor information to a CSV file.

This is a great way to review your voltages, temperatures and utilization.

You can manually start and stop the sensor logging and optionally choose which sensor information you want in the log.

The default logging option is to log all sensor information.