Question HWiNFO m.2 ssd temperature sensors

[DewRitozz]

Hello, i am using XPG GAMMIX S11 Pro, when i open HWiNFO, i can see 6 temperature sensors: Drive Temperature; Drive Temperature 3; Drive Temperature 4; Drive Temperature 5; Drive Temperature 6; Drive Temperature 7. All sensors show normal temps, even during high load (40-60c), except for Drive Temperature 4, during high load it reaches as far as 89c, which is a concern for me. Why would only one sensor show up as hot and the rest normal? Searching the web got me mixed feelings, some say its normal (i.e. i read somewhere that during stress test its ok for controller chip to reach as high as ~100c lol).
CrystalDiskInfo shows the readings of the cooler sensors instead, as if disregarding that hot one (not including in the average). My ssd has a heatsink, although a thin stock one, it lays right under the GPU, my GPU itself never reaches above 65c (RX 5600xt). So, there isnt any room for a bigger heatsink really, so if its really bad, the only option for me is placing a case fan on a makeshift stand, blowing air to the m2 area. Or is it normal for that sensor to show this temperature?

 

[Lafong]

You might be able to find out exactly where each of those sensors are on the drive, but I'm not sure that would reduce your anxiety.

Some of my drives show only a single sensor in HWInfo, but my WD SN770 shows 3. Right now the 3 show 36, 43, and 63. I think the 63 degree reading is on or near the controller. This is while idling. That 63 may be much higher under a load.

I don't know what you can do about it. Use a heatsink? Expose the drive to a fan's output? Decide to worry less? Find info on the net that reassures you that those temps are not critical?

You may be able to dig into your drive's tech documents to find out the critical temp level at which it will throttle. My SN770 has 80 C listed as the throttle point, but I don't know what sensor that refers to.

 

[DewRitozz]

You might be able to find out exactly where each of those sensors are on the drive, but I'm not sure that would reduce your anxiety.

Some of my drives show only a single sensor in HWInfo, but my WD SN770 shows 3. Right now the 3 show 36, 43, and 63. I think the 63 degree reading is on or near the controller. This is while idling. That 63 may be much higher under a load.

I don't know what you can do about it. Use a heatsink? Expose the drive to a fan's output? Decide to worry less? Find info on the net that reassures you that those temps are not critical?

You may be able to dig into your drive's tech documents to find out the critical temp level at which it will throttle. My SN770 has 80 C listed as the throttle point, but I don't know what sensor that refers to.

Honestly, i dont even know myself, either way i will try installing a fan down there and see how the temps differ. That temp sensor might actually be faulty for all i know. As for the docs, i dont see any temps listed in there.

 

[fzabkar]

Each NAND flash chip would have an on-die sensor, and the controller would also have one. The first reported temperature is a "composite" temperature which is supposed to be a weighted average of all the real physical sensors. Because the weights are undefined by the NVMe standard, the SSD manufacturer doesn't need to be "truthful".

I would allow the SSD to sit at idle and then gently warm up each IC with a hair dryer while watching HWiNFO's report. Alternatively, isopropyl alcohol or a can of spray freeze could achieve the same end.