Under the Hood
The Seasonic Platinum-1000 power supply is based on the X Series design, which becomes apparent as soon as the cover is removed. The most obvious feature is the +3.3V and +5V voltage regulators have been moved off of the main PCB (or daughter cards) and onto the modular DC connector board, which mounts to the front of the enclosure. This is a major innovation shared by all X Series power supplies and offers several advantages.
• Reduced wiring results in less resistance to current flow and higher efficiency
• Reduced wiring also results in a cleaner layout with better airflow
• Reduced part count results in higher reliability and lower cost
(Courtesy of Seasonic)
The biggest advantage to moving the two VRMs onto the DC connector board is that it virtually eliminates the high current distribution wiring that previously had to route the +3.3V and +5V outputs to the connector panel. This distribution wiring had to carry high currents and therefore was subject to line resistance and voltage losses. With the new design, only +12V has to be delivered to the modular DC connector board, which can be distributed more efficiently with fewer and smaller wires (as voltage goes up, current goes down for the same power).
The Seasonic Platinum-1000 main PCB is basically a +12V PSU that also includes a small -12V regulator and the +5VSB section. All of these output voltages are sent out via modular connectors soldered directly onto the front of the main PCB. Additional connectors supply all the other connectors directly from sockets soldered onto the modular DC connector board.
Seasonic X Series DC Connector Panel with 3.3V and 5V VRMs
Looking inside the Seasonic Platinum-1000 PSU, you will see the three main capacitors on the primary are made by Nippon Chemi-Con and are rated at 330uF, 420V, and 105°C. The secondary also features Nippon Chemi-Con caps with a mix of electrolytic and solid polymer types. Just like all previous X Series power supplies we have seen, the layout and component selection appears to be excellent.
You did an excellent job
You did an excellent job explaining in simple terms all the parameters tested. This indicates you truly know your stuff. This was a delight to read. I have been using seasonic psu’s for quite some time, and have nothing but good things to say about them.
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Dang I had no idea i could be
Dang I had no idea i could be so fascinated by a PSU… thank you very much!..
so yea, wrap one up, i’ll take it like it is.
Plan of the mounting holes?
Plan of the mounting holes?
FYI – 190mm != 6.3″
FYI – 190mm != 6.3″
190mm really equals 7.48
190mm really equals 7.48 inches
The ATX standard 160mm equals 6.3 inches