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Prudent Way Superior Series Power Supply User’s Manual 

ATX 12V version 2.2 &2.0 

Models: PWI-PR550 (2.2v), PWI-PR500 (2.2v), PWI-PR450 (2.0v), PWI-PR400 (2.0v) 

SATA Connector 

 

For serial ATA type 
HDD and other 
peripherals 

Floppy Drive 
Connector 

 

For floppy drive 

 

 
4. Product Specification 

 

Features 

PWI-PR550 W 

PWI-PR500W

 

PWI-PR450W

 

PWI-PR400W

 

Type 

ATX12V V. 2.2 (dual 12V)                          

ATX12V V. 2.0 (dual 12V)                         

Switches 

ATX Logic On/Off Additional Power Rocker Switch (115/230V selector switch) 

Maximum Power 

550 W 

500W 

450W 

400W 

Transient Response 

+5V,+12V and 3.3V outputs return to within 3% in less than 1ms for 25% load change 

Power Good Signal 

100 - 500 ms 

 

 

Over Voltage Protection Recycle AC to reset 

+12V1/+12V2=13.4V-15.6V, +5V=5.7V-7.0V,+3.3V=3.7V-4.3V  

Special Connectors 

1 Main Connector (20+4 pin) 

 

 

1 12V (P4) 

 

 

 

8 Peripheral 

6 Peripheral 

 

 2 

SATA 

 

 

 

 2 

Floppy 

 

 

 

 

2 PCI-E 12V 

1 PCI-E 12V 

 

 

4 pin-8pin Adapter 

Nil 

Nil 

Nil 

Dual +12V 

Yes 

 

 

 

SLi Support 

NVIDIA SLi Certified 

No 

No 

Fans 

9cm x 8cm with Smart Fan Control                   8cm x 8cm with Smart Fan Control 

Cables 

Black Sleeved Cables 

 

DIMENSIONS 

 

 

 

 

Unit Size 

5.9” (W) x 5.5” (D) x 3.4” (H) 

Net Weight 

4.8lb 

 

 

 

OUTPUT (550W) 

 

 

 

 

Output Voltage 

+3.3V 

+5V 

+12V1 

+12V2 

Max. Load 

34A 

36A 

18A 

18A 

Min. Load 

0.5A 

0.3A 

1A 

1A 

Regu-5% 

+-5% 

-5+7% 

-5+7% 

Ripple & Noise (mV) 

50mV 

50mV 

120mV 

120mV 

Available Power 

112.2W 

180W 

 

432W 

Total Power 

550W continuous maximum at full load  

OUTPUT (500W) 

 

 

 

 

Output Voltage 

+3.3V 

+5V 

+12V1 

+12V2 

Max. Load 

32A 

33A 

17A 

17A 

Min. Load 

0.5A 

0.3A 

1A 

1A 

Regu-5% 

+-5% 

-5+7% 

-5+7% 

Ripple & Noise (mV) 

50mV 

50mV 

120mV 

120mV 

Summary of Contents for PWI-PR550

Page 1: ...Solid Power Solution User s Manual Prudent Way Professional Series Power Supply PWI PR550 PWI PR500 PWI PR450 PWI PR400 ...

Page 2: ...upply User s Manual ATX 12V version 2 2 2 0 Models PWI PR550 2 2v PWI PR500 2 2v PWI PR450 2 0v PWI PR400 2 0v 1 Table of Contents 1 Introduction 2 2 Safety Warning 2 3 Installation 2 4 Product Specification 4 5 Simple Trouble Shooting 5 ...

Page 3: ...d up by a 3 year warranty to display the enduring value all at a friendly price 2 Safety Warning Please read the following information carefully before using the power supply 8 DO NOT take apart add to or remove any components from the power supply There are HAZARDOUS VOLTAGES inside the power supply Warranty will be voided by doing so 8 DO NOT expose the power supply or computer to water or moist...

Page 4: ...tors are connected correctly Step 11 Screw and close the side panel of your PC case Step 12 Plug in the power cord to the power supply Switch the on off I O button to I The system is now ready to go Table 1 Connector Image Number of Pins Qty Function Main Power Connector 20 4 1 Provide CPU motherboard memory PCI AGP USB hub with power ATX 12 V 2 2 Power Connector 8 PWI PR550 1 PWI PR500 0 PWI PR45...

Page 5: ...ge Protection Recycle AC to reset 12V1 12V2 13 4V 15 6V 5V 5 7V 7 0V 3 3V 3 7V 4 3V Special Connectors 1 Main Connector 20 4 pin 1 12V P4 8 Peripheral 6 Peripheral 2 SATA 2 Floppy 2 PCI E 12V 1 PCI E 12V 4 pin 8pin Adapter Nil Nil Nil Dual 12V Yes SLi Support NVIDIA SLi Certified No No Fans 9cm x 8cm with Smart Fan Control 8cm x 8cm with Smart Fan Control Cables Black Sleeved Cables DIMENSIONS Uni...

Page 6: ...OR 230VAC Hold up Time 17ms max Efficiency 70 EMI RFI FCC Class B ENVIRONMENTAL Operating Temp 0 to 50o C Operating Alt 10 000ft MTBF 100 000 Hours Safety Approval UL cUL CASA FCC Class B TUV CE CB NEMKO BSMI RoHS Compliant Yes PFC n a 5 Simple Trouble Shooting Condition No Power 1 Check that the power cord is plugged into an electrical outlet and the power switch is at I position 2 Make sure the ...

Page 7: ...wer up after following the above instructions please send the unit back to your dealer or retailer for service For feedback about this product please contact Prudent Way Inc Toll Free 866 384 3873 Email feedback prudentway com For support or general inquiry please contact Prudent Way Inc Toll Free 866 384 3873 Email Support prudentway com Prudent Way Inc www prudentway com 866 384 3873 ...

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