RIVE 3930k @ 4.5GHz idle temps now at 58-63C (145F up from 124F in winter)

[MHzTweaaker]

Is it spring time yet?

My idle temps have jumped from 124F to 145F (63C) with almost zero workload.

I am in an air conditioned home office with a 20" pedestal fan in the doorway on Hi pumping lots of air into the room. My Corsair 600T has 5 120mm fans (4 on the side 1 in back-near top). My cooler is Thermaltake Water 2.0 Extreme with radiator mounted in top of Corsair case and 2 Corsair High static pressure 120mm fans pushing air out through the radiator and out the top of the case.

Core Temp 1.0 RC5 gives idle temps between 135 and 145F across the 6 cores. The Thermaltake monitoring software says my pump speed is 3100RPM average and Fan speed is 2160RPM average. The coolant temp shows 46C but the temp of the hottest CPU core is 63C at idle.

Running offset volts overclocking and have been at 4.5GHz for 5months. VID voltage is 1.3661 according to Core Temp. Core Voltage is 1.376v according to CPU-Z.

I am curious as to why my idle temp jumped 20F in the last couple weeks?

Should I remove the pump and reapply thermal paste?

This is my first water cooled rig so have no idea what to expect over time or with season changes and what not.

thanks

[Zka17]

Well, your idle temps are very high! Not sure what voltage you're having on Vcore, but with that cooler and that speed you should get way less temps... - what is the ambient temp you have there?

I assume that you do need to reseat your cooler... but before that make sure that you have only one temps assessing application - more programs which are polling the same sensors can give you misreadings...

[MHzTweaaker]

Zka17 wrote:
Well, your idle temps are very high! Not sure what voltage you're having on Vcore, but with that cooler and that speed you should get way less temps... - what is the ambient temp you have there?

I assume that you do need to reseat your cooler... but before that make sure that you have only one temps assessing application - more programs which are polling the same sensors can give you misreadings...

Room temp in the house is about 70F. It is only a little warmer in my small office with two 12hd file servers and 3 to 6 other workstations running. I keep the A/C air blowing in through an open door. It in not likely about 75F.

There have not been any TEMP software reader changes in over 4 months.

I got on google again looking for high idle temps in water cooling. Someone suggested in a post elsewhere to tap the water pump and radiator with the end of my finger like I was tapping my forehead. I popped the cover and did this for less than a minute without even moving the PC and the idle temps have dropped 5degrees F. I guess maybe I have air bubbles in there somewhere. I thought closed loop cooling did not have these issues. Can anyone elaborate?

thanks

[Chino]

Air bubbles are common in all watercooled systems whether it's a closed loop or a custom loop. Usually when you have air bubbles you'll start hearing a gurgling sound coming from it. In that case, you can tap on the CPU block like you read earlier or you can unscrew the radiator and give it a good shake to loosen up any air bubbles.

[MHzTweaaker]

Chino wrote:
Air bubbles are common in all watercooled systems whether it's a closed loop or a custom loop. Usually when you have air bubbles you'll start hearing a gurgling sound coming from it. In that case, you can tap on the CPU block like you read earlier or you can unscrew the radiator and give it a good shake to loosen up any air bubbles.

OK, back online after having the &#^$#$ scared out of me at 1AM here.

I unbolted the radiator while it was running and started moving it around and the temp spiked to 196F and stayed there!!!!

It seemed I could not get it to shut down fast enough.

I unbolted the pump from the CPU and pulled the power cords. I cleaned the old paste off and banged the sides and corners of both the radiator and and water pump with the palm of my hand at lots of different angles.

I reapplied a large Pea size drop of my Gelid GC Extreme paste and bolted everything back in.

I hit the power and went into the BIOS temp area. After a minute or so it looked like CPU temp was at about 33C in the BIOS.

After booting to the desktop I am seeing higher temps in the last 3 cores than the first 3. I get 41-43C idle now on the first 3 cores and 46-48C idle on the last 3 cores. Do I have an air pocket possibly? I'm going to take it back off and look at the pattern the paste left to see how coverage was. I lowered the offset voltage down from +.015 to +,010 to test stability. The good news is that my temps are cooler now than they have ever been, about 7F cooler at idle.

I am not sure I like this closed loop system. It is just impossible to tell what is going on with it. I believe I will start planning a loop for the CPU and motherboard using top notch parts. Where is the best place in the U.S. for cooling parts?

thanks

[Chino]

MHzTweaaker wrote:
Where is the best place in the U.S. for cooling parts?

Performance-Pcs or FrozenCPU

[MHzTweaaker]

Chino wrote:
Performance-Pcs or FrozenCPU

Am looking at Frozen-CPU now. It seems like the EK brand is one I can trust for a great number of the components.


thanks

[Arne_Saknussemm]

Hey MHz

Sounds to me like your cooler has never really worked if that's the case and might be evaporating fluid slowly. At 21 degrees ambient (70F) the idle temps should be around 30 degrees (86F)

The spread of temps across the cores is certainly not out of the normal.

[MHzTweaaker]

Arne Saknussemm wrote:
Hey MHz

Sounds to me like your cooler has never really worked if that's the case and might be evaporating fluid slowly. At 21 degrees ambient (70F) the idle temps should be around 30 degrees (86F)

The spread of temps across the cores is certainly not out of the normal.

Idle temps have settled down to 47C (120F) now that the paste has semi cured I guess.

Is it possible I am just getting the wrong reading via Core Temp software? The reason I ask is that in the BIOS I was seeing 33C from the CPU in the temp section after letting the system sit for a few minutes.

Important to note: I do not have any power saving or CPU throttling features turned on. I am at 4.5 GHz 100% of the time.

[Arne_Saknussemm]

MHzTweaaker wrote:
Important to note: I do not have any power saving or CPU throttling features turned on. I am at 4.5 GHz 100% of the time.

Hmmm it is important to note that 😉 but do you mean it is doing something at that frequency....if so then it isn't really at idle and the temps would be more normal....