Dynex Power Supply DX 520WPS User Manual

Dynex ATX 400 and ATX 520 Watt Power Supplies  
DX-400WPS/DX-520WPS  
USER GUIDE  
Before using your new product, please read these instructions to prevent any damage.  
 
1
Introduction  
Power supply components and  
features  
Congratulations on your choice of this Dynex DX-400WPS or Dynex  
DX-520WPS power supply. Please read this manual carefully and follow  
the instructions before installing the power supply.  
Power supply features include:  
This is an advanced power supply with excellent acoustic and thermal  
performance and intelligent thermal fan control technology that makes  
it virtually silent. The power supply provides perfect protection for your  
system and comes equipped with two +12V rails that can handle a  
maximum load of 18A for additional system reliability.  
• Complies with the newest Intel standard ATX 12V version 2.31  
and is downward compatible with V2.2 and V2.0  
• Supports Intel and AMD dual-core and multi-core processors  
• High-performance components designed for better reliability  
• Dual +12 V outputs for higher power capacity  
• One 4+4 pin +12 V CPU connector for high-end CPUs  
• One 6+2 pin PCI Express connector for high-end video cards  
• 140 mm low-noise cooling fan  
• All DC cables are mesh-sleeved. The length is 15.75 in. (40 cm)  
• High reliability, including built-in protection circuit OVP, OLP, SCP,  
and line input fuse protection  
Safety information  
Safety regulations  
Power supply components include:  
DX-400WPS power supply  
Voltage switch  
The power supply meets safety guidelines and regulations for UL, cUL,  
and FCC.  
AC power  
jack  
Important safety instructions  
ON/OFF switch  
Cooling fan  
• Do not place your system near a radiator or other heat source.  
• Do not place your system close to a source of strong magnetic  
fields.  
• Do not place your system in a moist or dusty environment, or in  
an area subject to strong vibration.  
• Do not place your system in direct sunlight.  
Ventilation  
grating  
• Your computer must operate at a stable AC input voltage.  
• Your computer should not be situated directly next to a heater or  
another heat source.  
• Do not open the cover on the power supply case. Dangerous  
voltages are present inside the cover. Your warranty is void if the  
cover is removed.  
• Never operate the device with wet or moist hands.  
• Never place items in the openings or fan of the power supply.  
• Make sure that the power cord is plugged into a powered  
electrical outlet.  
DX-520WPS power supply  
• Make sure that the power cord is plugged into the power supply.  
• Make sure that you connect your power supply properly. Check  
your motherboard and graphic card manuals for compatibility  
before connecting the power supply to any of your devices.  
AC power  
jack  
Caution (for DX-400WPS only): Check the red power supply voltage  
switch setting before installation. The setting should be the same as  
your local power voltage (115 V for North America and 230 V for  
Europe and other countries). Change the voltage setting if necessary.  
Failure to take this precaution could result in damage to your  
equipment and could void your warranty.  
Cooling fan  
Ventilation  
grating  
Note: If the power supply does not work correctly, contact our service  
center immediately at (800) 305-2204.  
Package contents  
• 400-Watt or 520-Watt ATX Power Supply  
• AC power cord  
• User Guide  
 
       
2
DX-400WPS/DX-520WPS  
Installing the power supply  
a. Connect the 20+4-pin main power connector to your  
motherboard. If your computer has an older  
Installing the power supply  
motherboard with a 20-pin main power socket, connect  
only the 20-pin main power connector.  
Preparing your power supply:  
1
2
3
Make sure your motherboard, graphics card, and other  
components are compatible with this power supply. Refer to the  
documentation that came with each component.  
Check your local AC voltage (115 VAC for USA, Canada, Japan, and  
others, and 230 VAC for Europe, Southeast, Asia, and others). The  
DX-520WPS is only compatible with 115 VAC.  
For DX-400WSP only: Make sure that the red voltage switch  
(located on the back of the power supply) is set to the correct  
voltage setting.  
Caution: Using the incorrect voltage can damage the power supply and  
connected equipment and may void your warranty.  
Are you replacing a power supply?  
b. Connect the 8-pin (4+4) or 4-pin +12 V power  
connector to your motherboard.  
• Yes, start at “Removing your old power supply” below.  
• No, go to “Installing your power supply” on pg 2.  
Removing your old power supply:  
1
2
3
Turn off your computer.  
Unplug the power cord from your computer.  
Open your computer case. (See the instructions that came with  
your computer.)  
4
Disconnect your old power supply from all computer  
components.  
Tip: Make sure to note each component and the connector type for when  
you need to connect them to your new power supply.  
5
Remove the screws that secure your old power supply to your  
computer case, then remove it from the case.  
c. Connect all of the following that apply to your computer:  
i. The 4-pin peripheral connectors (4) to any  
computer components with a 4-pin connector, such  
as an IDE drive or a case fan.  
Installing your power supply:  
1
Position your power supply in the computer case, making sure  
ii. The floppy drive power connector to the floppy  
drive.  
that the AC power jack and cooling fan are facing out, then secure  
your power supply using the screws included with your computer  
case.  
2
Connect all power supply cables. Make sure that each connection  
is secure.  
Tip: If you are replacing an old power supply, reference your notes from  
when you removed the old power supply to make sure you are  
connecting all of your components correctly.  
 
 
3
Connector types  
DX-400WPS/DX-520WPS  
iii. The Serial ATA connectors (4) to any computer  
Connector types  
components that have a Serial ATA connector, such  
as a CD/DVD/Blu-ray or hard drive.  
Connector  
Illustration  
Connect to  
The motherboard  
20+4-PIN Main Power  
4-PIN+ 12V -  
(400 Watt PS only)  
The motherboard (for CPU  
power)  
-------------------------------OR-----------------------------------  
iv. The 8-pin PCI-E or 6-pin PCI-E connector to a PCI-E  
graphics card.  
8-PIN (4+4) + 12V -  
(520 Watt PS only)  
The motherboard (for CPU  
power)  
4-PIN peripheral -  
Total 3 connectors  
Internal IDE drives  
Internal SATA drives  
3.25” floppy drive  
Serial ATA (SATA) -  
Total 4 connectors  
Floppy drive  
Caution: Make sure that all connectors are securely connected. Incorrect  
connections could prevent your computer from starting and could  
damage some components.  
PCI Express card (such as a  
graphics card) that  
requires power  
6-PIN PCI-E  
(400 Watt PS only)  
3
4
Close your computer case.  
Connect the AC power cord to the power supply, then to a surge  
protector or wall outlet.  
Turn on your computer by pressing the power button on the front  
of the case.  
------------------------------OR--------------------------------------  
5
PCI Express card (such as a  
8-PIN PCI-E  
graphics card) that  
(520 Watt PS only)  
requires power  
Note: For more information, refer to your computer’s user guide.  
 
   
4
DX-400WPS/DX-520WPS  
Troubleshooting  
520 Watt Power Supply  
Troubleshooting  
If your new power supply is not working correctly, try the following:  
• Make sure that the computer power cord is firmly plugged into  
the power cord connector on your computer.  
Output Voltage +12V1DC +12V2DC +5VDC +3.3VDC -12VDC +5Vsb  
Max Load  
Min Load  
Max Watt  
Peak Power  
Regulation  
Ripple  
18.0 A 16.0 A 18.0 A 20.0 A 0.3 A  
2.0 A  
1.0 A  
1.0 A  
0.5 A  
420 W  
520 W  
5%  
0.3 A  
0.0 A 0.005 A  
• If you are using a surge protector, make sure that it is plugged in  
and turned on.  
• Make sure that the wall outlet is supplying power. For example,  
plug a lamp into the outlet and turn it on.  
• If you have the DX-400WPS, make sure that the red voltage  
switch (located on the back of the power supply) is set to the  
correct voltage setting. The setting for the United States is 115 V.  
The setting for Europe and other countries is 230 V.  
5%  
5%  
5%  
10%  
5%  
120 mV 120 mV 50 mV 50 mV 120 mV 50 mV  
200 mV 200 mV 100 mV 100 mV 200 mV 100 mV  
100-500 mS  
Noise  
Power Good  
Signal  
• Make sure that the system board power supply cable is securely  
connected to the system board connector (24 pin or 20 pin).  
• Make sure that all power supply cables to peripheral devices,  
such as hard drives, optical drives, and fans, are securely  
connected. Any loose power cable connections may cause the  
power supply to operate incorrectly.  
Power Fail  
Signal  
1 mS Min.  
Hold-up Time  
Dimensions  
16 mS Min.  
5.5 × 3.4 × 5.9 inches (W × H × L)  
140 × 86 × 150 mm (W × H × L)  
• The power supply may be overloaded. Unplug any unnecessary  
components, such as extra drives, then try again.  
• If the power supply is very hot, check the case fans and the power  
supply fan. Replace any faulty case fans, then try again.  
• If you have the DX-400WPS, make sure the power switch (I/O) on  
the back of the power supply is set to ON (I).  
Legal notices  
FCC warning  
This equipment may generate or use radio frequency energy. Changes  
or modifications to this equipment may cause harmful interference  
unless the modifications are expressly approved in the instruction  
manual.The user could lose the authority to operate this equipment if  
an unauthorized change or modification is made.  
Specifications  
400 Watt Power Supply  
Caution: Any change or modification to the equipment not expressly  
approved by the manufacturer or its authorized parties could void your  
authority to operate the equipment.  
Output Voltage  
+12V1DC +12V2DC +5VDC +3.3VDC -12VDC +5Vsb  
Max Load  
Min Load  
Max Watt  
Peak Power  
Regulation  
Ripple  
8.0 A  
1.0 A  
14.0 A 20.0 A 20.0 A 0.3 A  
2.5 A  
1.0 A  
0.3 A  
300 W  
400 W  
5%  
0.5 A  
0.0 A 0.1 A  
UL statement  
Any information or documentation provided to you involving UL Mark  
services is provided on behalf of Underwriters Laboratories, Inc.  
Products that bear the UL Mark are identical to those that were  
evaluated by UL and found to be technically compliant with the UL’s  
applicable requirements.  
For further information regarding the use of UL marks, please visit the  
5%  
5%  
5%  
10%  
5%  
120 mV 120 mV 50 mV 50 mV 120 mV 50 mV  
120 mV 120 mV 50 mV 50 mV 120 mV 50 mV  
100-500 mS  
Noise  
Power Good  
Signal  
Power Fail  
Signal  
1 mS Min.  
Hold-up Time  
Dimensions  
16 mS Min.  
5.5 × 3.4 × 5.9 inches (W × H × L)  
140 × 86 × 150 mm (W × H × L)  
 
     
5
Legal notices  
DX-400WPS/DX-520WPS  
Products sold “as is” or “with all faults”  
Consumables, including but not limited to batteries (i.e. AA, AAA, C etc.)  
Products where the factory applied serial number has been altered or removed  
Loss or Theft of this product or any part of the product  
Up to three (3) pixel failures (dots that are dark or incorrectly illuminated)  
grouped in an area smaller than one tenth (1/10) of the display size or up to five  
(5) pixel failures throughout the display. (Pixel based displays may contain a  
limited number of pixels that may not function normally.)  
Failures or Damage caused by any contact including but not limited to liquids,  
gels or pastes.  
One-year limited warranty -  
Dynex  
Definitions:  
Dynex Products (“Dynex”) warrants to you, the original purchaser of this new  
Dynex-branded product (“Product”), that the Product shall be free of defects in the  
original manufacturer of the material or workmanship for a period of one (1) year from  
the date of your purchase of the Product (“Warranty Period”). For this warranty to apply,  
your Product must be purchased in the United States or Canada from a Best Buy or  
Future Shop authorized dealer of Dynex brand products only that are packaged with this  
warranty statement.  
REPAIR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS YOUR EXCLUSIVE  
REMEDY FOR BREACH OF WARRANTY. DYNEX SHALL NOT BE LIABLE FOR ANY INCIDENTAL  
OR CONSEQUENTIAL DAMAGES FOR THE BREACH OF ANY EXPRESS OR IMPLIED  
WARRANTY ON THIS PRODUCT, INCLUDING, BUT NOT LIMITED TO, LOST DATA, LOSS OF  
USE OF YOUR PRODUCT, LOST BUSINESS OR LOST PROFITS. DYNEX PRODUCTS MAKES NO  
OTHER EXPRESS WARRANTIES WITH RESPECT TO THE PRODUCT, ALL EXPRESS AND  
IMPLIED WARRANTIES FOR THE PRODUCT, INCLUDING, BUT NOT LIMITED TO, ANY  
IMPLIED WARRANTIES OF AND CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE WARRANTY PERIOD SET FORTH  
ABOVE AND NO WARRANTIES, WHETHER EXPRESS OR IMPLIED, WILL APPLY AFTER THE  
WARRANTY PERIOD. SOME STATES, PROVINCES AND JURISDICTIONS DO NOT ALLOW  
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION  
MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU  
MAY ALSO HAVE OTHER RIGHTS, WHICH VARY FROM STATE TO STATE OR PROVINCE TO  
PROVINCE.  
Contact Dynex:  
For customer service please call 1-800-305-2204  
Distributed by Best Buy Purchasing, LLC  
7601 Penn Avenue South, Richfield, Minnesota, U.S.A. 55423-3645  
© 2014 BBY Solutions, Inc.  
How long does the coverage last?  
The Warranty Period lasts for 1 year (365 days) from the date you purchased the  
Product. Your purchase date is printed on the receipt you received with the Product.  
What does this warranty cover?  
During the Warranty Period, if the original manufacture of the material or workmanship  
of the Product is determined to be defective by an authorized Dynex repair center or  
store personnel, Dynex will (at its sole option): (1) repair the Product with new or  
rebuilt parts; or (2) replace the Product at no charge with new or rebuilt comparable  
products or parts. Products and parts replaced under this warranty become the property  
of Dynex and are not returned to you. If service of Products or parts are required after  
the Warranty Period expires, you must pay all labor and parts charges. This warranty  
lasts as long as you own your Dynex Product during the Warranty Period. Warranty  
coverage terminates if you sell or otherwise transfer the Product.  
All rights reserved. DYNEX is a trademark of BBY Solutions, Inc. Registered in some  
countries. All other products and brand names are trademarks of their respective  
owners.  
How to obtain warranty service?  
If you purchased the Product at a Best Buy or Future Shop retail store location, please  
take your original receipt and the Product to any Best Buy or Future Shop store. Make  
sure that you place the Product in its original packaging or packaging that provides the  
same amount of protection as the original packaging. If you purchased the Product from  
a Best Buy or Future Shop online web site, mail your original receipt and the Product to  
the address listed on the web site. Make sure that you put the Product in its original  
packaging or packaging that provides the same amount of protection as the original  
packaging. To obtain warranty service, in the United States call 1-888-BESTBUY, Canada  
call 1-866-BESTBUY for Future Shop call 1-800-663-2275. Call agents may diagnose and  
correct the issue over the phone.  
Where is the warranty valid?  
This warranty is valid only in the United States and Canada at Best Buy or Future Shop  
branded retail stores or websites to the original purchaser of the product in the county  
where the original purchase was made.  
What does the warranty not cover?  
This warranty does not cover:  
Customer instruction/education  
Installation  
Set up adjustments  
Cosmetic damage  
Damage due to acts of God, such as power surges  
Accident(s)  
Misuse  
Abuse  
Negligence  
Commercial purposes/use, including but not limited to use in a place of business  
or in communal areas of a multiple dwelling condominium or apartment  
complex, or otherwise used in a place of other than a private home.  
Modification of any part of the Product, including the antenna  
Display panel damaged by static (non-moving) images applied for lengthy  
periods (burn-in).  
Damage due to incorrect operation or maintenance  
• Connection to an incorrect voltage or power supply  
• Attempted repair by any person not authorized by Dynex to service the  
Product  
 
 
Distributed by Best Buy Purchasing, LLC  
7601 Penn Ave. South, Richfield, MN 55423 U.S.A.  
© 2014 BBY Solutions, Inc. All rights reserved.  
DYNEX is a trademark of BBY Solutions, Inc. Registered in some countries. All other products and  
brand names are trademarks of their respective owners.  
V5 ENGLISH  
13-0313  
 

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