Seasonic PRIME 650 Platinum Power Supply

REVIEW INFORMATION
SUPPLIED BY: Seasonic
MANUFACTURER: Seasonic USA
PRODUCT: PRIME 650 Platinum
PROD LINK: PRIME Platinum Product Page
PRICE: $129.90 @ NewEgg
Price is at the time of testing!

PRIME 650W Platinum

Here’s a shocker for you – the 650W unit looks a lot like the 1200W unit. I would surmise, however, that because this unit is only half as powerful it’ll run both quieter and spend more time with the fan off.

PRIME 650W Platinum

Naturally, this unit is also fully modular.

PRIME 650W Platinum

On the exhaust grille, we find the fan mode switch once again. Push in, and you get the fan on all the time.

PRIME 650W Platinum

Compared to the 1200W model, this side of the unit looks rather uncluttered.

PRIME 650W Platinum

All right, who said that? “There’s something primal about this shot?” Who said it? That’s my dad joke, dangit!

PRIME 650W Platinum

PRIME 650 Platinum – DC Output
DC Output +3.3V +5V +12V -12V +5VSB
20A 20A 54A 0.3A 2.5A
Max Power @ 50°C 100W 648W 3.6W 12.5W
650W

Now that we’ve seen the actual unit’s load table, I can show you my little load table with the maximum temperature for full power. No surprise here that it’s good for fifty degrees, is it?

PRIME 650W Platinum

On to the cables, and once again the only Berg is on its own adapter. Top left in the above shot. Just the way I like them, though I do like them better when they’re gone.

PRIME 650W Platinum

Some of the modular cables do have capacitors in them. Here’s the ATX.

PRIME 650W Platinum

And here’s one of the two PCI-e cables. They are 18 AWG like big brother, though I don’t see this as an issue down here at this power level.

Now, for the news, I was mentioning earlier… Seasonic is now moving to 16 AWG cables on their 1kW and up units. Fantastic! While there is still some uncertainty in my mind as to whether or not the light wire gauge actually causes my fellow mining enthusiasts to burn out their cable connectors, Seasonic has seen some sense in the simple fact that when all the competition uses 16 AWG it’s probably good business to just keep up with them.

So, they’re making a running change on those units as I type this.

PRIME 650W Platinum

Here’s the only CPU cable that comes with the unit, and that’ll be just fine at this power level. I only expect a second at 850W or so and up.

PRIME 650W Platinum

Two SATA cables come with the unit, and you can see both here.

PRIME 650W Platinum

And last but not least, here’s the only Molex chain. Let’s do a cable table, then meet on the next page for load testing.

PRIME 650 Platinum – Cabling
Type of Cable Length from PSU AWG
Modular Cables
20+4 pin ATX connector 605 mm 18
4+4 pin CPU 655 mm
6+2 pin PCI-e, 6+2 pin PCI-e 680+80 mm
6+2 pin PCI-e, 6+2 pin PCI-e 680+80 mm
SATA+SATA+SATA+SATA 450+120+120+120 mm
SATA+SATA 360+120 mm
5.25″+5.25″+5.25″ 460+125+125 mm
5.25″ to 3.5″ Adapter 105 mm 22
Unit Dimensions (L x W x H)
150 mm x 170 mm x 56 mm