Dynex Power Supply DX 400WPS User Manual

Dynex ATX 400 Watt Power Supply  
DX-400WPS  
USER GUIDE  
 
1
Safety information  
Power supply components and  
features  
Safety regulations  
Power supply features include:  
The power supply meets safety guidelines and regulations for UL, cUL,  
and FCC.  
• Complies with Intel ATX 12V version 2.2 and is downward  
compatible with V2.0  
• Compatible with Intel VIIV and AMD LIVE interfaces  
• Supports Intel and AMD dual-core and multi-core processors  
• Energy Star compliant  
• Internal fan speed control function  
• Low Acoustic noise  
• Output over-current and over-voltage, and short circuit  
protection  
Important safety instructions  
• 70% min. efficient under full load  
Power supply components include:  
• 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.  
Output cables  
5.5inches  
5.9 inches  
(140.0 mm)  
(150.0 mm)  
Fan  
4.7 inches  
12 cm  
• 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.  
Power switch  
Voltage switch  
3.4 inches  
(86.0 mm)  
AC socket  
• 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.  
• 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.  
Caution: 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.  
Installing the power supply  
To install the new power supply:  
1
2
3
Turn off your computer.  
Unplug the power cord from your computer.  
Open your computer case. For instructions, see your computer’s  
user guide.  
4
Disconnect power supply cables from the system board and  
peripheral devices, such as hard drives, optical drives, and fans.  
Make sure that you note where all the power connectors are  
because you will need to reconnect the power supply cables.  
Note: If the power supply does not work correctly, contact our service  
center immediately.  
5
6
7
Remove the old power supply. For instructions, see your  
computer’s user guide.  
Install the new power supply and secure it to the computer case  
with the appropriate screws.  
Reconnect all power supply cables using the notes you made in  
step 4. Make sure that each connection is secure.  
8
9
Close the computer case.  
Plug the power cord into your computer, then turn your computer  
on.  
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.  
• 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.  
 
           
2
DX-400WPS  
Specifications  
• 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.  
• 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 operate incorrectly.  
• 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.  
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.  
Caution: Any change or modification to the player not expressly  
approved by the manufacturer or its authorized parties could void your  
authority to operate the player.  
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  
Specifications  
Input  
Voltage  
USA: 115 Vac  
Europe and others: 230 Vac  
Frequency 60 Hz-50 Hz  
Current  
10.0 A (max.) at 115 Vac/60 Hz  
5.0 A (max.) at 230 Vac/50 Hz  
Parameter  
Minimum Nominal  
Maximum Units  
Vin (115 VAC) 90  
Vin (230 VAC) 180  
Vin frequency 47  
115  
230  
---  
132  
264  
63  
VRMS  
VRMS  
Hz  
Output  
Ripple and  
Noise  
Voltage  
Max. load  
Min. load  
Regulation  
+3.3 V  
+5 V  
30 A  
28 A  
14 A  
15 A  
0.3 A  
2.5 A  
0.5 A  
0.3 A  
1 A  
5%  
5%  
5%  
5%  
10%  
5%  
50 mV  
50 mV  
120 mV  
120 mV  
120 mV  
50 mV  
+12 V1  
+12 V2  
-12 V  
1 A  
0 A  
+5 Vsb  
0 A  
DC output power distribution  
Maximum output: 400 Watts  
Combined 3.3 V and 5 V: 120 Watts  
• Dimensions:  
• 5.5 × 3.4 × 5.9 inches (W × H × L)  
• 150 × 86 × 140 mm (W × H × L)  
 
       
3
Legal notices  
DX-400WPS  
REPAIR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS YOUR  
1 year limited warranty  
EXCLUSIVE REMEDY. 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.  
Dynex Products (“Dynex”) warrants to you, the original purchaser of this new  
DX-400WPS (“Product”), that the Product shall be free of defects in the original  
manufacture of the material or workmanship for a period of 365 days from the date of  
your purchase of the Product (“Warranty Period”). This Product must be purchased from  
an authorized dealer of Dynex brand products and packaged with this warranty  
statement. This warranty does not cover refurbished Product. If you notify Dynex during  
the Warranty Period of a defect covered by this warranty that requires service, terms of  
this warranty apply.  
How long does the coverage last?  
The Warranty Period lasts for 365 days from the date you purchased the Product. The  
purchase date is printed on the receipt you received with the product.  
What does this warranty cover?  
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  
© 2010 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.  
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 and 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.  
How to obtain warranty service?  
If you purchased the Product at a retail store location, take your original receipt and the  
Product to the store you purchased it from. 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 an 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 in-home warranty service for a television with a screen 25 inches or larger, call  
1-888-BESTBUY. Call agents will diagnose and correct the issue over the phone or will  
have an Dynex-approved repair person dispatched to your home.  
Where is the warranty valid?  
This warranty is valid only to the original purchaser of the Product in the United States,  
Canada, and Mexico.  
What does the warranty not cover?  
This warranty does not cover:  
Customer instruction  
Installation  
Set up adjustments  
Cosmetic damage  
Damage due to acts of God, such as lightning strikes  
Accident  
Misuse  
Abuse  
Negligence  
Commercial use  
Modification of any part of the Product  
Plasma display panel damaged by static (non-moving) images applied for  
lengthy periods (burn-in).  
This warranty also does not cover:  
Damage due to incorrect operation or maintenance  
Connection to an incorrect voltage supply  
Attempted repair by anyone other than a facility authorized by Dynex to service  
the Product  
Products sold as is or with all faults  
Consumables, such as fuses or batteries  
Products where the factory applied serial number has been altered or removed  
 
 
Distributed by Best Buy Purchasing, LLC  
7601 Penn Ave. South, Richfield, MN 55423 U.S.A.  
© 2010 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.  
ENGLISH  
09-1153  
 

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