EXTREME Overclocking - Power Supply Testing Methodology Article - Page: 6

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Power Supply Testing Methodology
at EXTREME Overclocking

Date Published: June 2, 2005
Page Last Updated: February 20, 2006
Author: Jason Rabel

Compiled Test Results - Connectors:

ATX12V v2.x calls for split 12V rails, with certain connectors on each rail. The proper connector assignment is as follows:

12V1 - 24pin Main Power, SATA Power, 4pin Peripheral & Floppy Power
12V2 - ATX +12V Power

The 6pin "PCI Express" connector is not part of the official ATX12V 2.x specs at this point in time. While we would like to see manufacturers follow the ATX12V guidelines, sometimes they go their own route to balance loads on the 12V rails. Obviously only power supplies with split 12V rails will be listed, v1.3 PSUs only have one 12V rail.

ATX 2.x 12V Wiring
Akasa PaxPower Rated: 460W PFC: Active ATX: 2.0	12V1	Main Power (24pin)
		SATA Power
		Peripherals (4pin & Floppy)
		PCI Express (6pin)
	12V2	ATX +12V (4pin)
	12V2	EPS12V (8pin)

Akasa PowerPlus Rated: 650W PFC: Active ATX: 2.01 EPS: 2.11	12V1	First 4-pins on the 8-pin EPS12V
	12V2	Last 4-pins on the 8-pin EPS12V
	12V2	SATA Power
	12V3	Main Power (24pin)
		PCI Express (6pin)
		Super Micro AGP (4pin)
	12V4	Peripherals (4pin & Floppy)

Antec SP-500 Rated: 500W PFC: None ATX: 2.0	12V1	Main Power (24pin)
		SATA Power
		Peripherals (4pin & Floppy)
		PCI Express (6pin)
	12V2	ATX +12V (4pin)

Antec TP-II 480 Blue Rated: 480W PFC: None ATX: 2.01	12V1	Main Power (24pin)
		SATA Power
		Peripherals (4pin & Floppy)
		PCI Express (6pin)
	12V2	ATX +12V (4pin)

Cooler Master RS-550-ACLY Rated: 550W PFC: Active ATX: 2.01	12V1 12V3	Main Power (24pin)
		SATA Power
		PCI Express (6pin)
		Peripherals (4pin & Floppy)
	12V2	ATX +12V (4pin)
		EPS Processor Power (8pin)
		EPS Workstation (6pin)

Enermax EG475P-VE Rated: 470W PFC: None ATX: 2.0	12V1	Peripherals (4pin & Floppy)
		SATA Power
		PCI Express (6pin)
	12V2	Main Power (24pin)
	12V2	ATX +12V (4pin)

Enermax Liberty Rated: 620W PFC: Active ATX: 2.2	12V1	Main Power (24pin)
		Peripherals (4pin & Floppy)
		SATA Power
		PCI Express (6pin)
	12V2	8-pin EPS12V (4+4 style to allow for ATX12V)

HEC ACE Power 480UB Rated: 480W PFC: None ATX: 2.01	12V1	Main Power (24pin)
		Peripherals (4pin & Floppy)
		SATA Power
	12V2	ATX +12V (4pin)
	12V2	PCI Express (6pin)

Hiper Type-R 580W Rated: 580W PFC: None ATX: 2.2	12V1	Main Power (24pin)
		Peripherals (4pin & Floppy)
		SATA Power
		PCI Express (6pin)
	12V2	ATX +12V (4pin)

Hiper Type-R 480W Rated: 480W PFC: None ATX: 2.2	12V1	Main Power (24pin)
		Peripherals (4pin & Floppy)
		SATA Power
		PCI Express (6pin)
	12V2	ATX +12V (4pin)

Meridian XClio-450BL Rated: 450W PFC: None ATX: 2.0	12V1	Main Power (24pin)
		SATA Power
		PCI Express (6pin)
		Peripherals (4pin & Floppy)
	12V2	ATX +12V (4pin)

Meridian XCLIO-550BL Rated: 550W PFC: None ATX: 2.01	12V1	Main Power (24pin)
		SATA Power
		PCI Express (6pin)
		Peripherals (4pin & Floppy)
	12V2	ATX +12V (4pin)
	12V2	EPS +12V (8pin)

Seasonic S12-500W Rated: 500W PFC: Active ATX: 2.0	12V1	Main Power (24pin)
		SATA Power
		PCI Express (6pin)
		Peripherals (4pin & Floppy)
	12V2	ATX / EPS +12V (4pin / 8pin)

Sunbeamtech NUUO-550W Rated: 550W PFC: None ATX: 2.0	12V1	Main Power (24pin)
		SATA Power
		PCI Express (6pin)
		Peripherals (4pin & Floppy)
	12V2	ATX / EPS +12V (4pin / 8pin)

Realtime Pricing

Page Navigation

Page 1:  Introduction, How Much Power Does My PC Use?, Different PSU Specifications
Page 2:  ATX12V v2.x vs v1.3, Different PSU Manufacturers
Page 3:  ATX12V v2.x In-Depth, What We Use To Test PSUs
Page 4:  How We Measure & Compare
Page 5:  Compiled Test Results - Loading
Page 6:  — Compiled Test Results - Connectors

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Power Supply Testing Methodology at EXTREME Overclocking

Compiled Test Results - Connectors:

Power Supply Testing Methodology
at EXTREME Overclocking