Antec EarthWatts Platinum 650 W Review 0

Antec EarthWatts Platinum 650 W Review

Packaging, Contents & Exterior »


Antec EA-650 Platinum Features & Specs
Max. DC Output650W
Efficiency80 PLUS Platinum
Operating temperature0°C - 50°C
ProtectionsOver Voltage Protection
Under Voltage Protection
Over Current Protection
Over Power Protection
Short Circuit Protection
Surge & Inrush Protecion
Brown-Out Protection
Cooling120 mm Double Ball Bearing Fan
Dimensions150 mm (W) x 86 mm (H) x 140 mm (D)
Weight1.9 kg
ComplianceATX12V v2.31, EPS 2.92
Warranty3 years
Price at time of review (exc. VAT) $119.99

Besides Platinum efficiency the unit can deliver its full power up to 50°C ambient. This is something very good of course and indicates that quality components are used in this PSU, which can withstand extreme heat. All common protections, except OTP (Over Temperature Protection) are present and we also see two more: Surge & Inrush Protection (SIP) and Brown-Out Protection (BOP). Surge protection most of the times is handled by an MOV in the transient filtering stage while inrush protection is provided by a thermistor before the APFC caps, so most of the PSUs sold nowadays have these protections. On the contrary BOP isn't so common and protects against short voltage drops on the AC supply side.
The dimensions of the unit are compact but its weight is normal for its capacity. Finally the warranty is short at three years, since most of the competition provides five or more years while the retail price is very good for a Platinum efficiency unit.

Antec EA-650 Platinum Power Specs
Max. Power20A18A30A30A30A30A3A0.3A
Total Max. Power650W

There are four +12V rails with 30A max power each. Unfortunately the max combined power at +12V is kept rather low at 576W, whereas most of the high efficiency units can deliver almost their full power at +12V alone, something that greatly enhances usability since modern systems draw power mainly from this rail. The minor rails are weaker than what we normally see in other PSUs but 105W combined are just fine at these rails for a modern system. Finally the 5VSB rail can deliver up to 3A, a normal power level for the category of the unit.

Cables & Connectors, Power Distribution

Native Cables
ATX connector (540mm)20+4 pin
4+4 pin EPS12V (600mm)1
6+2 pin PCIe (540mm+155mm)2
SATA (520mm+150mm+150mm) / 4 pin Molex (+150mm)3 / 1
SATA (520mm+150mm+150mm)3
4 pin Molex (520mm+150mm+150mm) / FDD (+150mm)3 / 1

For starters we think that two PCIe connectors are too few for the unit's capacity, thus crippling its usability. At least four should be present. Also the SATA connectors ideally should be two more reaching eight in total while the peripheral connectors are enough. Regarding cable length we would like to see a 600mm long 24pin ATX and 60mm additional length to the two PCIe cables. Thankfully the distance among connectors is the right one. Finally all cables are hardwired to the PSU and fully sleeved back into the housing with all wires having the recommended size which of course is 18AWG.

Power Distribution
12V1Peripheral, SATA
12V4PCIe1, PCIe2

Power distribution is optimal since the EPS and PCIe connectors are powered from different rails. The peripheral and SATA connectors have their own rail and the same applies to the 24pin ATX connector, too.
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