SUPPLIED BY: Seasonic USA
PRODUCT: PRIME 1200 Platinum
PROD LINK: PRIME Platinum Product Page
PRICE: $229.90 @ Amazon
Price is at the time of testing!
Time for some load testing. We have some high expectations today, and to see if this unit meets them we’ll use the FastAuto load tester, Extech DMM, Tek scope, Rek power meter, and dual probe thermometer to see how this unit performs.
Let’s get going.
|PRIME 1200 Platinum – STANDBY Load Tests|
|Test #||+5VSB||DC Watts/
The standby results look good. We’ve got 3.2% voltage regulation on this rail, which is an average number, but the mythic performance promised on the box is not what I go looking for in these tests. Anything running in spec here is doing well enough for our needs.
Efficiency ranges from way above average to above average, so Seasonic’s already bringing home the bacon in that regard.
Main test time.
|PRIME 1200 Platinum – Cold Load Tests|
|Test #||+3.3V||+5V||+12V||DC Watts/
|Progressive Load Tests|
* Fanless operation.
It’s a Seasonic… of course, it regulates like a mofo. They’re still killing it, there, with 0.36%, 0.20%, and 0.25% load regulation going from left to right in the above table. Yes, Seasonic just showed up Cooler Master’s fancy Made in Japan 1200W unit for averaging 0.27% regulation at roughly a quarter the price.
Efficiency was a bit of a stretch for Platinum, but with only test three struggling to hit the mark and only by 0.1% I have to give them the pass, there.
Now… the fan. Is loud. Is very loud. It’s not as loud as recent Enhance builds I’ve looked at, like the Thermaltake TPG RGB DPS Titanium 1kW unit, but it’s close. Clearly, the platform is being pushed hard to get this power level out of it, and I have doubts it could be scaled up any further. Not that Seasonic has ever really tried to go higher. Fortunately, it takes full power to get that kind of noise from it, and the fan did stay off until test three.
Let’s turn the page and see if they’ve tackled the S&C point. You’ll remember that the behavior of the Titanium units is what prompted me to start scoring on that part of things.