Efficiency meets 80 PLUS Platinum requirements, and the PSU can deliver its full power continuously at up to 50°C. All protection features but Over Current Protection (OCP) are present, and a 120 mm FDB fan keeps the unit cool. There is an option for a semi-passive operation that doesn't employ the fan at light-medium loads under normal operating temperatures should you want to keep noise at a minimum. The PSU is also a bit larger than normal for its category, and at seven years, the warranty is very long. Currently, only EVGA offers a longer warranty for their high-end products.
|Seasonic Snow Silent-750|
Features & Specs
|Max. DC Output||750 W|
80 Plus Platinum
|Intel Haswell Ready|
0°C ~ 50°C
Over Voltage Protection
Under Voltage Protection
Over Power Protection
Over Temperature Protection
Short Circuit Protection
120 mm Fluid Dynamic Bearing Fan
150 mm (W) x 86 mm (H) x 170 mm (D)
ATX12V v2.4, EPS 2.92
|Price at time of review|
As per usual for a modern PSU, the +12V rail can deliver the unit's full power alone. At 125 W combined maximum power output, the minor rails are pretty strong, and with 3 A maximum current output, the 5VSB rail is strong enough for a 750 W PSU.
|Seasonic Snow Silent-750 Power Specs|
|Total Max. Power||750W|
Cables & Connectors, Power Distribution
Some high-end 750 W PSUs offer six PCIe connectors; however, we believe four to be enough for such a medium capacity unit so long as there are also two EPS connectors. More PCIe connectors can actually lead to problems if users connect three high-end VGAs to a 750 W PSU since even such a high-end unit wouldn't be able to cope with the load. There are an adequate number of SATA and 4-pin peripheral connectors, and an FDD adapter has also been included for those who still use such connectivity.
|Description||Cable Count||Connector Count (Total)|
|ATX connector 20+4 pin (610mm)||1||1|
|4+4 pin EPS12V (660mm)||1||1|
|6+2 pin PCIe (610mm)||4||4|
|4 pin Molex (400mm+120mm+120mm)||1||3|
|4 pin Molex (300mm+120mm)||1||2|
|FDD Adapter (+110mm)||1||1|
All connectors are installed on pretty long cables, and the distance between SATA and peripheral connectors is good, although some might want the peripheral connectors to be a little further apart. All connectors use 18AWG gauges, which is as ATX spec recommends.
Since this PSU features a single +12V rail, we do not have anything to comment on when it comes to its power distribution.