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Alternating DIMM temperatures Asus X99-A USB 3.1

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Hi Fiery,

 

My DIMM temps keep flipping back and forth between what looks like the right temp (changes appropriately) and 48.

 

Asus X99-A USB 3.1

BIOS 3101

Intel 6900K

4x G Skill F4-3200C14-8GVR

 

Thanks!

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In case DIMM temperature readings fluctuate by showing a weird anomaly, then it is most likely due to a collision on the SPD SMBus. Are you running any other hardware monitoring, tweaking or overclocking software in the background?

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I'm manually overclocked, only AIDA64 is monitoring, no Asus or Intel OC software running. This is recent, since I switched to the 6900K processor more or less. Interestingly I also started getting an unknown device in the Device Manager.

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I'm manually overclocked, only AIDA64 is monitoring, no Asus or Intel OC software running. This is recent, since I switched to the 6900K processor more or less. Interestingly I also started getting an unknown device in the Device Manager.

Did you keep your "old" DDR4 memory modules when you've upgraded your CPU? Did you only change the CPU or the motherboard too?

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Hi Fiery, it's Sunday, you should be doing something relaxing :).

 

I only changed the CPU. I found the unknown device was for the Intel Turbo Max 3 from the new gen i7s, so that's explained and gone. I keep getting no DIMM temps, or only one or two upon reboot, but I think that's probably my DIMMs or maybe my fairly pronounced overclock (CPU from 3200 -> 4550 MHZ, DIMMs from 3200 -> 3370. I do pass stress using Google's memory stressapp for an hour and RealBench for almost three hours with max core temp 74c, no symptoms while working even some video coding.

 

DIMMs are G Skill F4-3200C14-8GVR, 4x 8GB set.

 

Cheers!

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Heavy memory overclocking could cause anomalies on the memory bus that could prevent a stable DIMM TS temperature readout. If you could try returning your memory modules to their stock clock speed (well, the stock speed of the CPU, DDR4-2400 would be even better as a test), and check it that way, it would be very helpful.

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It's definitely the overclocking with the new CPU. Consider this done, and thanks for your help.. Sorry to bug (pun intended :) ) you about it!

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No problem at all ;) It's always good to learn more about how overclocking affects the detection and system monitoring modules of AIDA64.

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