Page 1 of 4 123 ... LastLast
Results 1 to 10 of 40

Thread: What is the voltage on the SATA plug?

  1. #1
    Join Date
    Jan 2020
    Location
    California
    Posts
    118
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default What is the voltage on the SATA plug?

    I'm assuming all PSU are the same, so was just wondering what the output voltage is for the SATA cables? Is it 12V/5V or 12V and somehow reduced to 5V?

  2. #2
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    17,052
    Thanks Thanks Given 
    572
    Thanks Thanks Received 
    580
    Thanked in
    422 Posts

    Default

    Quote Originally Posted by DWD1961 View Post
    I'm assuming all PSU are the same, so was just wondering what the output voltage is for the SATA cables? Is it 12V/5V or 12V and somehow reduced to 5V?
    You're talking about the SATA connector specifically?

    https://www.lifewire.com/sata-15-pin...pinout-2624584

    Of course, you can leave the +3.3V off. Save you some wire and time. Nobody uses the +3.3V unless you have a Corsair cooler with an RGB pump head.

  3. #3
    Join Date
    Jan 2020
    Location
    California
    Posts
    118
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Quote Originally Posted by Jon Gerow View Post
    You're talking about the SATA connector specifically?

    https://www.lifewire.com/sata-15-pin...pinout-2624584

    Of course, you can leave the +3.3V off. Save you some wire and time. Nobody uses the +3.3V unless you have a Corsair cooler with an RGB pump head.
    Well, I was talking about how many volts are supplied to the PSU plug. So it is actually a 12V rail?

  4. #4
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    17,052
    Thanks Thanks Given 
    572
    Thanks Thanks Received 
    580
    Thanked in
    422 Posts

    Default

    Quote Originally Posted by DWD1961 View Post
    Well, I was talking about how many volts are supplied to the PSU plug. So it is actually a 12V rail?
    Look at the link I posted.

    What does it say?

    It says there are four leads to a standard SATA power connector. +12V, +5V, +3.3V and ground.

    What is your actual question because "how many volts" couldn't possibly be your question.

  5. #5
    Join Date
    Jan 2020
    Location
    California
    Posts
    118
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Quote Originally Posted by Jon Gerow View Post
    Look at the link I posted.

    What does it say?

    It says there are four leads to a standard SATA power connector. +12V, +5V, +3.3V and ground.

    What is your actual question because "how many volts" couldn't possibly be your question.
    Yeah I saw that. I don't know how to ask my question. Maybe something like the wall outlet in your house is 120V. How many volts is the SATA connection from the PSU?

  6. #6
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    17,052
    Thanks Thanks Given 
    572
    Thanks Thanks Received 
    580
    Thanked in
    422 Posts

    Default

    Quote Originally Posted by DWD1961 View Post
    Yeah I saw that. I don't know how to ask my question. Maybe something like the wall outlet in your house is 120V. How many volts is the SATA connection from the PSU?
    It has three voltages. +3.3V, +5V and +12V. There isn't one voltage. There's three.

  7. #7
    Join Date
    Jan 2020
    Location
    California
    Posts
    118
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Quote Originally Posted by Jon Gerow View Post
    It has three voltages. +3.3V, +5V and +12V. There isn't one voltage. There's three.
    Got it, so what does SATA take, 5V?

  8. #8
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    17,052
    Thanks Thanks Given 
    572
    Thanks Thanks Received 
    580
    Thanked in
    422 Posts

    Default

    Quote Originally Posted by DWD1961 View Post
    Got it, so what does SATA take, 5V?
    +12V, +5V or +3.3V.

    Depends on the device.

    Like, a SATA HDD uses both +12V and +5V. +12V for the motor and +5V for the logic.

    An SSD only uses +5V because, well... it's solid state.

    And, as I mentioned earlier, Corsair pump heads with RGB use +3.3V from the SATA cable.

  9. #9
    Join Date
    Jan 2020
    Location
    California
    Posts
    118
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Quote Originally Posted by Jon Gerow View Post
    +12V, +5V or +3.3V.

    Depends on the device.

    Like, a SATA HDD uses both +12V and +5V. +12V for the motor and +5V for the logic.

    An SSD only uses +5V because, well... it's solid state.

    And, as I mentioned earlier, Corsair pump heads with RGB use +3.3V from the SATA cable.
    Thanks for the explanation. And I did mean SSD taking 5V.

    Total amps regardless if the device need 12V or 3.3V is 4.8 Amps?

  10. #10
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    17,052
    Thanks Thanks Given 
    572
    Thanks Thanks Received 
    580
    Thanked in
    422 Posts

    Default

    Quote Originally Posted by DWD1961 View Post
    Thanks for the explanation. And I did mean SSD taking 5V.

    Total amps regardless if the device need 12V or 3.3V is 4.8 Amps?
    It will say on the actual device.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •