Antec Earthwatts 380W ??


Recommended Posts

Yes, it has two rails, as described here:


+12V1: 17A / 1A / 3% / 120mV

+12V2: 15A / 1A / 3% / 120mV


So the first rail has 17A and the second has 15A.  One of those rails also supports the motherboard, fans, etc and we aren't sure which one it is.  So to be safe, let's drop each rail by about 3A.  14A is enough to run 7 green drives or 4 7200rpm drives.  12A is enough to run 6 green drives or 4 7200rpm drives.  So if you ran only green drives you should be good up to around 13 drives.  If you ran only 7200rpm drives you should be good up to around 8 drives.  If you ran a mixture of the two, you'll have to figure it out yourself - assume 2A for each green drive and 3A for each 7200rpm drive.


For what its worth, I use the Antec Earthwatts 380W on my 6 drive test server, and it performs well.


See Joe L's response below.

Link to comment

According to their product brochure here:


Dual 12V outputs:

12V2 for Motherboard and peripherals;

12V1 for processor  (the CPU connectors)


So... you are limited to 15 Amps of the 12v2 rail for the Motherboard, peripherals, disks and fans.


I would not try 6 green drives.. that might be pushing it.    Remember, the 12v1 rail is ONLY for the CPU.

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.