Antec HCG850 Pro Platinum ATX 3.1 Power Supply Review

A Closer Look – Interior

Antec has used a 135mm FDB Silent Fan on this power supply, it’s a very good quality fan too, so while it does support a ZeroRPM mode for complete silence in low-loads, even when this fan is going faster, it should be impressively quiet.

The interior of the PSU is very clean and tidy, which isn’t that surprising given that it’s 80 Plus Platinum rated, as more efficient units tend to be better designed and optimised to reach better efficiency standards.

There are two main bulk capacitors, and just like every other capacitor in this PSU, they’re all Japanese made high-quality units, which promise more durability, reliability and longer life span. Both are rated for 105c and 420v, one is 330uF the other 390uF.

The HCG850 used Antec’s PhaseWave Design, which they say is a “server-class full-bridge LLC design” and that’s pretty common to see this approach on higher quality power supplies, using a DC-to-DC topology, which gives improved stability, but also much better efficiency and lower heat generation.

Towards the back, there’s a small daughter board where we can see the 3.3v and 5v coils.

And the AC Line-in looks robust and well shielded.

Overall, a very clean and robust looking power supply, not that I would have expected anything less from the iconic HCG series.