Seasonic PRIME Series 750 W Review 22

Seasonic PRIME Series 750 W Review

Packaging, Contents & Exterior »

Specifications

Seasonic SSR-750TD Features & Specs
Max. DC Output750W
PFCActive PFC
Efficiency80 PLUS Titanium
ModularYes
Intel C6/C7 CompatibleYes
Operating temperature0°C - 50°C
ProtectionsOver Voltage Protection
Under Voltage Protection
Over Power Protection
Over Temperature Protection
Over Current Protection (minor rails & 5VSB)
Short Circuit Protection
Cooling135 mm Fluid Dynamic Bearing Fan (HA13525M12F-Z)
Semi-passive operationYes (Selectable)
Dimensions150 mm (W) x 86 mm (H) x 170 mm (D)
Weight2.0 kg
ComplianceATX12V v2.4, EPS 2.92
Warranty10 years
Price at time of review (exc. VAT)$179.99
Finally a Seasonic PSU with Titanium efficiency to meet the similar spec'd Super Flower Leadex platform eye to eye. Without any serious competition, Super Flower has been dominated the Titanium category, which we believe won't be the case anymore, not once all Prime and Focus units have hit the market. Seasonic is ready to unleash a wide portfolio of products on the market, which will surely make all of its competitors uncomfortable. Super Flower's Leadex platform is one of the best, there is no doubt about it, and there was no need for it to be upgraded or redesigned, but with the new Prime platform emerging, Super Flower should probably push its engineers to design an even better platform.

As per usual for a high-end PSU, the SSR-750TD can deliver its full power at up to 50 °C ambient over prolonged periods of time. All necessary protection features are also present, and there is an FDB fan with a lifetime of 70,000 hours at 40 °C, at least on paper. 70.000 hours might look low compared to the specifications of other FDB fans which usually last well over 100,000, but Seasonic does mention the ambient at which these 70,000 hours apply where other OEMs do not. As you can imagine, the HA13525M12F-Z will last much longer at lower temperatures.

Seasonic SSR-750TD Power Specs
Rail3.3V5V12V5VSB-12V
Max. Power20A20A62A3A0.3A
100W744W15W3.6W
Total Max. Power750W
The +12V rail is quite strong, but the minor rails look weak. However, 100 W maximum combined power output on the minor rails is more than enough to cover a modern system's needs. After all, the minor rails can easily deliver much more than these 100 W combined should the need arise since their OCP thresholds are set at over 25 A.

Cables & Connectors, Power Distribution

Modular Cables
DescriptionCable CountConnector Count (Total)
ATX connector 20+4 pin (610mm)11
4+4 pin EPS12V (650mm)22
6+2 pin PCIe (675mm+80mm) 44
SATA (460mm+120mm+120mm+120mm)28
SATA (350mm+120mm)12
4 pin Molex (400mm+120mm+120mm)13
4 pin Molex (350mm+120mm)12
FDD Adapter (+100mm)11
There are enough cables and connectors to cover the PSU's capacity efficiently. All cables are also long enough to avoid any problems during installation into larger cases. However, SATA and peripheral connectors could afford to be further apart to make things easier.

Since this PSU features a single +12V rail, we do not have anything to comment on when it comes to its power distribution.
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