S.M.A.R.T. Status says hot, but drive seems cool

I have a few drives in an external SATA dock. Looked at their smart status and temp is listed at 118... but they're not even warm to the touch. I put a fan on them just to see if I could change the reading, doesn't seem to change after a few hours.

Am I missing something?
editor_in chiefAsked:
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The temperature will be high internally somewhere, you don't necessarily will be able to feel it by touching the disk outside somewhere. Besides that SMART is really a type of counter that where certain values have been reached, it makes a note of them, and when a certain threshold has been reached, it alarms you that the disk must be replaced ASAP, as it will die completely soon. Temperature readings can also have had that value at another time, not necessarily now, but high temps will degrade the disk, even if they aren't constantly high.

So your only option, if SMART has been tripped and you constantly get SMART messages when you boot your system, is to replace that disk.
☠ MASQ ☠Commented:
Also bear in mind that there are very few enclosures supporting RAID where SMART temperature monitoring applies to individual drives.  As rindi says it all depends on where the temperature sensor that's being reported is.

Depending on the model of drive and the connection it could be that the attribute being reported is not the actual temperature at all (attribute #194) but could be the manufacturer's tolerance limit (attribute #190) which would make sense if it continually reads 118º
noxchoGlobal Support CoordinatorCommented:
Connect the drive directly to SATA controller on mobo and check the SMART again.
editor_in chiefAuthor Commented:
Okay, so I found my own solution - the values listed look like degrees F, but are actually normalized values - you have to look at the hex values raw... the cooler the drive is the higher the listed value for Temperature.


Pretty baffling, but it means my drives are indeed nice and cool. My hex value was 0x18, which means 24 deg C, which means 75.2 deg F. Which means I'm not the only one who doesn't know how to read SMART data.

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