Corsair SF600 Platinum Power Supply

REVIEW INFORMATION
SUPPLIED BY: Corsair
PRODUCT: Corsair SF600 Platinum
PROD LINK: SF600 Platinum Product Page
PRICE: $139.99
Price is at time of testing!

Let’s have a round of load testing, shall we? I’ll be using all the usual toys, including the FastAuto FA-4200ATE load tester, Extech DMM, dual probe thermometer, Tektronix TDS-2012B scope, and Rek RF9901 power meter.

SF600 Platinum – STANDBY Load Tests
Test # +5VSB DC Watts/
AC Watts
P.F. Eff.
1 0.5A 2.52W/
2.91W
0.312 86.4%
5.03V
2 1.25A 6.28W/
7.37W
0.460 85.1%
5.02V
3 2.5A 12.5W/
14.9W
0.521 83.9%
5.00V

Standby tests come first, of course. Here we find that this little guy is one of the most efficient units I’ve ever tested in standby mode. It’s well over 80% across the board, and this makes me very happy indeed. I’ve long since given up hope that I’ll see over 90% here anytime soon, but it’s nice to see at least this unit trying to stay over 85%.

Load regulation is also quite remarkable, coming in at 0.6%. It’s very close to mythic level on a rail that doesn’t need anywhere near that kind of performance.

I’m excited to see the main tests, so let’s get them done.

SF600 Platinum – Cold Load Tests
Test # +3.3V +5V +12V DC Watts/
AC Watts
AC
Input
Eff. P.F. Intake/
Exhaust
Progressive Load Tests
1 1A 1A 4.2A 60.0W/
68.5W
118.3V 87.6% 0.977 24°C/
26°C*
3.340V 5.04V 12.00V
2 1.5A 1.5A 9A 123.1W/
135.2W
117.6V 91.0% 0.963 24°C/
29°C*
3.341V 5.04V 12.00V
3 3.5A 3.5A 22A 299.6W/
324.9W
117.4V 92.2% 0.985 25°C/
37°C
3.343V 5.05V 12.00V
4 5A 5A 33A 447.9W/
491.2W
117.6V 91.2% 0.991 26°C/
44°C
3.343V 5.05V 12.00V
5 7A 7A 44A 598.3W/
666.0W
116.2V 89.8% 0.995 27°C/
52°C
3.345V 5.05V 11.98V
Crossload Tests
CL1 14A 14A 0A 118.5W/
137.9W
117.3V 86.0% 0.966 27°C/
43°C
3.338V 5.04V 12.01V
CL2 0A 0A 50A 600.3W/
664.4W
116.1V 90.3% 0.995 27°C/
51°C
3.351V 5.06V 11.98V

* Fanless operation.

So… good news, here, and nothing but. Efficiency was easily Platinum… in fact, this little guy hit Titanium on tests two and five. I was kind of hoping it would, but knew it would be falling short somewhere. Titanium is devilishly hard to hit, and that only becomes more true when you get to these little SFX units. Only Silverstone seems to have done it so far, and they kind of cheated by using SFX-L instead. In this case, tests one and three are just a bit too far away to let it have Titanium. Platinum, though? No problemo.

Something else was no problemo… keeping the load regulation numbers we expected to see after the previous generation unit came in here and rocked the casbah. On the 3.3V rail, I see 0.39%. The 5V rail gets 0.40%. Finally, the 12V is the best of the lot at 0.25%. That averages to 0.37%. Helloooooo mythic level performance.

The fan seems to be a little more keen to get going on this unit than the EVGA competition, but I don’t plan to complain about that. Fanless mode is gravy on a unit this small and powerful… we should be thankful Corsair got it to run fanless as long as it did. And this performance is already hitting EVGA where it hurts, so there’s that too.