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Terriac
03-24-10, 03:50 AM
Hey there,

I am trying to find out the worst HDD temperature on my WD.

Various tools show me such value (like Everest):

C2 Temperature 93 (worst)

But what does that mean?

I am pretty sure it's not Fahrenheit, since the worst temperature value is smaller than the current value.

I read on wikipedia that SMART uses "normalized values" to store data. How can I convert them to Celsius degrees?

Thanks !

P.S. apparently a free software called dTemp does show this, but I am unable to find and download it.

This is the data I am getting with most software (this was HDDLife Pro)
http://i43.tinypic.com/25gxlw8.jpg

Terriac
04-11-10, 05:54 PM
Somebody really should be answering this question ...

The trick is that the same value for the current temperature is displayed using two units of measure:

Temperature/Value = 107 (normalized values - an unit of measure created by the producer - Western Digital)
Temperature/RAW = 28 (Celsius degrees, but displayed as hexadecimal numbers - certain diagnostic software make it easier for you and display the value directly as decimal number)

Which means that 107 = 28

Ah, and worst values are counted downwards from 100, in the sense that smaller values mean a higher temperature.

Once you figure that out, it's very simple to convert the normalized value for the worst temperature to Celsius temperature degrees:

Decimal (28) + (107 - 93) = 40 + 14 = 54 degrees Celsius

This works for WD drives, not sure about other producers.

By the way, I don't take credit for this, it was explained to me on another forum, by an user who contacted WD.