[SOLVED] Which power rail do HDDs use?

[MrN1ce9uy]

More in regards to servers, which may have many HDDs; which power rail do they use (+/-12V, +/-5V, +3.3V)?

*Edit: Also, are there any components that use more than one power rail? Not in regards to a multi +12V rail unit, but would one component use both +12V and +5V? or any other combination?

 

[R_1]

on a molex plug, 12V is yellow, 5V is red. black is ground.
3.5 inch drive get both 12 and 5V
2.5 inch drives are 5V and can get power from USB which is 5V

 

[jonnyguru]

More in regards to servers, which may have many HDDs; which power rail do they use (+/-12V, +/-5V, +3.3V)?

*Edit: Also, are there any components that use more than one power rail? Not in regards to a multi +12V rail unit, but would one component use both +12V and +5V? or any other combination?

It's going to be written right on the drive. Platter drives will use +12V for the motor and +5V for the logic board. SSD's use only +5V.

 

[MrN1ce9uy]

It's going to be written right on the drive. Platter drives will use +12V for the motor and +5V for the logic board. SSD's use only +5V.

Was there something @R_1 said that was not true? (why the downvote?)

 

[jonnyguru]

Was there something @R_1 said that was not true? (why the downvote?)

Not now that he's edited his post.