Antec High Current Pro Platinum 850W PSU Review

Antec are using a high grade Delta fan, model number AFB1312M (12V, 0.38A). This fan is manufactured in China. We will measure noise on the next page.

Like the 1300W unit, the Antec High Current Pro Platinum 850W is manufactured by top OEM Delta. This company are one of the most respected power supply companies in the world and we have seen their power supplies used in everything from Apple Mac Pro desktop machines to Synology NAS systems.

The HCP-850W is built to the highest standards, using a full bridge toplogy and an LLC converter for lossless switching of the primary mosfets. The secondary side is using a synchronous rectification system and utilises a transformer to host the +12V fets..

Soldering on the PCB is superb.

The first section of the transient filtering stage is behind the AC receptacle. It consists of two Y caps and a single X cap. The main PCB is home to the remainder of the transient filtering components, including four Y caps, a single X cap, an MOV and two CM chokes.

The three layered modular PCB contains a series of Chemi Con electrolytic capacitors to help with ripple filtering to the DC outputs. Two DC-DC converters which generate the minor rails are on a PCB which is placed close to the modular PCB.


The 1350W model in this series used higher capacity Rubycon capacitors in the primary stage. The HCP 850 is using quality 105c Nippon Chemi Con capacitors, rated 450V, 390μF each.

All in all, this is a fantastic design, using only the highest grade components throughout.

Become a Patron!