Sapphire Pure 1250W Power Supply Review

paulktreg - October 29, 2009
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Specification:

Ratings Table:

Sapphire Pure 1250W Specification (Model No. SFI1250AWT)
AC Input	115-240VAC 15-6A 47-63Hz
DC Output	3V3	5V0	12V1	12V2	12V3	12V4	12V5	12V6	-12V	5VSB
Maximum Load	25A	25A	30A	30A	30A	30A	30A	30A	0.6A	5A
Maximum Combined Wattage	170W		1248W						7.2W	25W
Maximum Combined Wattage	1250W
Peak Wattage	1500W

System Protection:

Sapphire Pure 1250W System Protection
DC Over Current Protection	DC Rail	OCP Trigger Point
	3V3	30 - 45A
	5V0	30 - 45A
	12V1/2/3/4/5/6	34 - 45A
DC Under Voltage/Over Voltage Protection	DC Rail	UVP Trigger Point	OVP Trigger Point
	3V3	2.0 - 2.4V	3.7 – 4.1V
	5V0	3.3 - 3.7V	5.7 – 6.5V
	12V1/2/3/4/5/6	8.5 - 9.5V	13.1 – 14.5V
	-12V	-9.0 - -10.3V	-13.1 - -14.5V
AC Under Voltage Protection	Activated when AC input voltage is less than 70VAC.
Over Power Protection	Activated when output power is greater than 110 - 160% of rated maximum load.
Over Temperature Protection	Activated when PSU heat sink is greater than 90 - 110°C / 194 - 230°F.
Short Circuit Protection	Activated when DC rail is short-circuited.
Surge & Inrush Protection	Sustain 2kV surge stroke. Sustain up to 70A inrush current at 240VAC at cold start

"This PSU features PowerGuard & Advanced Protection Guard function to monitor the PSU itself. With tri-color LED, PowerGuard tells you the current PSU status. In case of abnormal situations, the power supply will automatically turn off to aviod potential danger to itself and other system components."

Sapphire Pure 1250W PowerGuard Indication
LED	On/Off Switch
OFF	OFF	No AC Input – Turn the I/O switch to the ON position.
OFF	ON	No AC Input or PSU malfunction – Check if AC cable is firmly plugged into wall outlet and AC inlet. If LED still does not turn to orange light, then contact SAPPHIRE service center.
Orange	ON	PSU normal and system in standby/sleep mode.
Green	ON	PSU normal and system operational.
Red	ON	System abnormal, protection circuit activated. If you push the system power button, and PSU refuse to turn on, the LED turn from orange to red light: -Short Circuit protection activated. -Completely check if all connectors are correctly inserted, and clean the chassis to prevent undesired objects, which might short circuit any device/terminal. If during system operation, the PSU suddenly shut down: -Touch the PSU housing and check if it is hot. If yes, wait till cool down and restart the system to see if all system fans and PSU fan are running. Add or replace the system fan if required. -If same situation repeat, recheck if all connectors are well connected to system, or redistribute certain drives/PCI-E power to different 12V rail connector.

Safety & Agency Approvals:

UL/cUL(Level 6), TUV, CCC, GOST, CB, CE & FCC.

Power Supply Weight:

Power Supply Weight
Manufacturer/Model	Weight
Sapphire Pure 1250W	2.95kg	6.5lbs

Power Supply Connectors:

Sapphire Pure 1250W Connectors
24 Pin Motherboard	Captive	1
EPS12V 8 Pin	Captive	1
ATX12V 4+4 Pin	Captive	1
PCI-E 6+2 Pin	Captive	2
Fan RPM	Captive	1
PCI-E 6+2 Pin	Modular	6
SATA Power	Modular	16
Peripheral 4 Pin	Modular	6
FDD	Modular	1

Power Supply Cable Lengths:

Sapphire Pure 1250W Connector Cable Lengths
Captive	PSU > 23" > 24 Pin Motherboard	1
Captive	PSU > 25" > 8 Pin EPS12V	1
Captive	PSU > 25" > 4+4 Pin ATX12V	1
Captive	PSU > 25" > 2 X PCI-E 6+2 Pin	1
Captive	PSU > 21" > Fan 3 Way For PSU Cooling Fan RPM detection	1
Modular	PSU > 18" > Peripheral > 4" > Peripheral > 4" > Peripheral > 4" > FDD	1
Modular	PSU > 18" > Peripheral > 4" > Peripheral > 4" > Peripheral	1
Modular	PSU > 18" > SATA > 4" > SATA > 4" > SATA > 4" > SATA	4
Modular	PSU > 19" > 2 X PCI-E 6+2 Pin	3

Features:

Exactly as printed on the box.

EPS 12V v2.92: Ready for most upcoming CPU generations by using 12P sockets for possible connector changes and complies to the latest EPS 12V PSU design guide for compatibility. Also optimized for multiple core and workststion processors such as the Intel Xeon and AMD Opteron.
80PLUS BRONZE Certified: Compliant with 80 Plus Bronze standard. Efficiency up to 91% @ 230VAC helps reduce power consumption and electricity fare.
8 PCI-E 2.0 Power Connectors: Supports PCI Express 2.0 SLI or CrossFire X technology and next generation graphics cards with 6+2 (8P) PCI-E connectors. 8 PCI-E connectors(upgradeable to 10 by optional modular cables) can easily drive multiple graphic cards with multiple screen graphic workstations.
Worldwide Power Support: Auto-Adjustable for global voltage support: 100VAC~264VAC (Maximum Range).
Active PFC: Active PFC improves the power factor up to 0.99, greatly reducing AC harmonic distortions and save energy.
Complete EMC Solution: Full-scale electromagnetic filtering protects your system against radiation interferences.
Post Cooling Design: Special power fan post cooling design exhausts the remaining heat inside the system for 30~60 seconds and prevents heat surge after PS-OFF to extend component lifetime.
Advance Protection Guard: Advance Protection Guard IC with over loading / current / voltage / temperature, under voltage, short circuit, surge and inrush current protections. Plus additional LED links with protection IC to indicate PSU status.
Circular LED Power Fan: Patent design circular LED 14cm magnetic bearing cooling fan with intelligent thermal control.
Heavy-duty Components inside: High quality Japanese Electrolytic Capacitors / HI-FLUX core / Massive Aluminium Heat Sink / Solid State Capacitors / 120% over power transformers ensure maximum performance @ 50°C extreme environment.