Corsair RM Series (2019) 80+ Gold Fully-Modular Power Supplies Review: Page 5 of 7

Posted by Damon Bailey on Friday, May 31, 2019 - 8:00am

On the Inside

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

The ‘135mm’ rifle bearing fan from Hong Hua actually has a 140mm part number fan that Corsair is customized for this application. It is rated 0.36A at 12V or about 4.3W at full tilt.

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

This is a good look inside, but Corsair has provided a handy guide to the layout.

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

Corsair uses extensive AC filtering that starts at the inlet socket.

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

The modular output daughterboard has quite a bit of additional filtering and heavy busbars to move power around. This is the RM650 version, the RM750 fills in the extra sockets you see here.

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

Two large Su’scon 105°C capacitors provide the hold-up charge.

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

The soldering is very clean on the back side.

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

The massive heatsinks help keep everything under control while being passively cooled at lower loads. Both transformers have the Corsair logo.

Corsair RM Series (2019) RM650 RM 750 PSU Power Supply Supplies

 

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