Seasonic Prime 850W Titanium Power Supply Review

1. Introduction2. Seasonic Prime 850W Titanium (Bundle & Cables)3. Seasonic Prime 850W Titanium (External)4. Seasonic Prime 850W Titanium (Internal)5. Super High Res Gallery6. Testing Methodology & Results7. Closing Thoughts8. View All Pages

The Seasonic Prime units are beautifully finished and some of the highest grade units we have tested. The neutral colour scheme will also mean they can fit in with any colour coordinated system you have built.

We said it in the previous review, but the quality of the paintwork is stellar. I like the design for the vents at the top of the power supply.

Some of you will have noted it is difficult to even see the fan behind the vents and we would imagine this is intentional to keep the clutter to a minimum. We will take a look at the specific model of fan later in the review when we open the chassis.

The attention to detail is high – the side panels are sculpted to regress inwards, towards the Seasonic name on one edge of the side panels. The PRIME Titanium logo takes pride of place on the other edge.

One side of the Prime Titanium is home to all the modular cabling connectors. The main M/B connectors are indicated along the bottom of the panel – clearly labelled. The Peripheral/SATA/Molex connectors are visible in a bank of two and three along the top right side. On the other side are all the CPU and PCI-e connectors in a row of 3, 3 and 2 from top to bottom (8 in total).

The other side of the PRIME is fully vented to aid with airflow. There is a power switch and connector at the side. There is also a switch for Hybrid mode – allowing the fan to be disabled completely when the unit drops to a specific temperature threshold. Seasonic claim the Hybrid Fanless mode works up to:

• Approximately 50 % (±5 %) of system load at 25 °C.
• Approximately 30 % (±5 %) of system load at 40 °C.

Above we can see the specifications of the power supply.

Seasonic Prime 850W Titanium Power Supply
DC Output	+3.3V	+5V	+12V	-12V	+5Vsb
Max Output	20A	20A	70A	0.3A	3A
Total Power	100W		840W	3.6W	15W
	850W

This 850W  power supply can deliver 70A on the +12V rail. Plenty of power on hand for a powerful SLI and Crossfire configuration.

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