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Question posted by sbattl24 on January 26th, 2013

How Do I Replace The Power Supply In This Computer

my childred were using the computer and it just shut off with out any warning in the middle of what they were working on. i have tried to turn it on and nothin happens. what part do i replace? how can i get it to turn back on?

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Answer #1: Posted by tintinb on January 27th, 2013 7:33 PM

This answer was accepted by the poster of the original question.

tintinb

Member since:
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Before you will finally replace the power supply of your Acer Aspire X1420G computer, try to consider the following reasons. This is because there are many possible causes of computer automatic shutdown. Here are the most common causes:

1. Computer power failure

2. Loose power cord

3. Power supply failure

4. Motherboard failure

5. Corrupted Operating System

6. Overheating of the CPU

7. CPU fan stopped working

If you have more questions, please don't hesitate to ask here at HelpOwl. Experts here are always willing to answer your questions to the best of our knowledge and expertise.

Regards,

Tintin

Answer #2: Posted by MercedesAMG on January 27th, 2013 9:33 AM

MercedesAMG

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January 26th, 2013

Points: 193,710

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Perhaps the power supply has short circuited. Inspect it and if so buy a new one. Cheers.

Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful. Please feel free to submit further info for your question, if a solution was not provided. I appreciate the opportunity to serve you!

Related Acer Aspire X1420G Manual Pages

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 1

Aspire AX1400 Desktop Computer Service Guide PRINTED IN TAIWAN

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 2

Date Chapter Updates ii Aspire AX1400 Service Guide Revision History Refer to the table below for changes made on this version of the Aspire AX1400 Desktop Computer Service Guide.

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 7

... 28 Removing the Front Bezel 33 Removing the Expansion Boards 34 Removing the Memory Modules 36 Removing the Power Supply Unit 36 Removing the Front I/O and Optional Card Reader Assemblies 38 Removing the Mainboard 43 Troubleshooting 45...70 Connecting Optional Devices 72 Connecting Case Components 74 Field Replaceable Unit (FRU) List 77 Exploded Diagram 77 Aspire AX1400 FRU List 78 vii

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 8

Table of Contents Technical Specifications 88 Processor 88 Chipsets 88 BIOS 88 Memory 89 Hard Disk Drive 89 Optical Disc Drive 90 Card Reader (optional 90 Gigabit Ethernet 90 Audio 90 Power Supply Unit 91 Power Management 91 Index ...93 viii

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 10

...MS PRO) AVerMedia H751 PCI-E Hybrid Analog/ATSC Card 220 W power supply unit (non-PFC, non-power factor correction) 220 W power supply unit (PFC) Norton Internet Security • AMI BIOS with 8 ... panel: Microphone, line-out, and line-in jacks • Hard drive activity • Power status 2 Aspire AX1400 Service Guide CF card slot - Headphone jack - PS/2 keyboard and mouse ports -...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 12

System Tour The pictures and tables in jack 9 USB 2.0 ports 10 USB 2.0 port 11 Acer logo 4 Aspire AX1400 Service Guide Component 1 Power button/indicator 2 Optical drive cover 3 Optical drive button 4 XD (XD-Picture) and SD/MMC (Secure Digital/MultiMedia Card) slots 5 CF card slot (Type I and II) 6 ...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 13

Component 1 Line-in jack 2 LAN connector 3 PS/2 mouse port 4 Power connector 5 Fan aperture 6 PS/2 keyboard port 7 Monitor port 8 USB 2.0 ports 9 Microphone jack 10 Line-out jack 11 Expansion slots Aspire AX1400 Service Guide 5 Rear View No.

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 15

... optimized, there is turned off. The values take effect when the system is a hardware configuration program built into the system ROM. POST uses these values to as "Setup" or "Setup Utility" in CMOS. IMPORTANT If you are prompted ("Run Setup" message) to make changes to run this utility. Aspire AX1400 Service Guide 7 If...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 44

... retaining latch (a) attached to pull it straight up (b). 36 Aspire AX1400 Service Guide Grasp the cable end of the connector. Gently pull the DIMM upward to the cable end of the connector and pull it away from its mainboard connector. Removing the Power Supply Unit 1. Disconnect the 4-pin and the 24-pin ATX...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 45

Remove the screw that secure the power supply to the chassis. 3. Aspire AX1400 Service Guide 37 2. Remove the three screws that secures the power supply to the rear panel.

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 46

Disconnect the front I /O and Optional Card Reader Assemblies 1. Lift the power supply module out of the chassis. Removing the Front I /O and optional card reader cables from their mainboard connectors. 38 Aspire AX1400 Service Guide 4.

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 63

... can be resolved by using AMIBIOS Setup. Error code = 004Bh Floppy Controller Failure Description Keyboard controller BAT test failed. Keyboard controller failure. User needs to unlock the keyboard to malfunction. CMOS settings are invalid. This error can be replaced. PS/2 mouse support is not detected. A reset or power cycle is pressed during the...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 64

... enter power • Enter CMOS Setup and load the default settings. If directed to a check procedure, replace the FRU indicated in this section to -FRU Error Messages To use the ...8226; Mainboard System works but fails to Enabled. Blinking cursor only; NOTE If you cannot find a symptom or an error in the check procedure. If the reading shows normal, but power supply fan runs. the...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 66

...power/connection/cable Modem-related Symptoms Symptom/Error Modem ring cannot wake up by PCI card is set to Enabled. • If a PCI modem card is used, reinsert the modem card to the PCI slot firmly or replace.../fax Fax/voice modem software program invoked but system sound feature works normally.) Action/FRU • For an external modem, make sure... 58 Aspire AX1400 Service Guide

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 67

... on keyboard do not work. • Keyboard Power Supply-related Symptoms Symptom/Error Pressing the power button does not turn off the system. (Only unplugging the power cord from electrical outlet can turn off the system.) Pressing the power button does not turn on the system Executing software shutdown from Recovery CD. • Power supply • Mainboard Aspire AX1400 Service Guide 59...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 68

...Power System Check" on the computer. 5. Remove or disconnect all attached devices are found, replace the FRU. 3. If the problem persists, replace the mainboard, and then LCD assembly (one at a time until you find the failed FRU. Do not replace a non-defective FRU. 60 Aspire...Verify that the power supply being used at the time...Power off the computer. 2. Either the video card is not working...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 82

... installed the motherboard into a case, you can begin connecting themotherboard components. Connect the standard power supply connector to CPUFAN1. 2. CPUFAN1: CPU Cooling Fan Power Connector Pin Signal Name 1 GND 2 +12V 3 Sense 4 PWM Function System ground Power +12V Sensor PWM 74 Aspire AX1400 Service Guide Connect the CPU cooling fan cable to PWR2. 3. Refer to the...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 99

...- CPB09-D220A (PFC) • CP - DPS-220UB-1 A (PFC) • Delta - Power Supply Unit Item Vendor and Model Input Output (max.) Connectors Specification • Delta - DPS-220UB-2 B (...-pin ATX connector • 1 x 4-pin ATX connector • 2 x SATA connectors Power Management Devices Power Button USB Keyboard/Mouse PME RCT WOR S1 V V Disabled Disabled Disabled S3 V V Disabled...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 101

... 2 Advanced BIOS Features menu 12 Advanced Configuration Power Interface specifications 2 antivirus software 2 audio headphone jack 4 microphone jack, ...36 optical disc drive 29 power supply unit 36 side panel 24 tools 23 E environmental requirements 3 Ethernet port specifications 90 expansion slots expansion board, remove 34 specifications 1 exploded view 77 F Field Replaceable Unit, see FRU list ...

Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 102

... error messages 50 processor check type/speed 10 specifications 88 troubleshooting 56 PSU, see power supply unit 36 R Return Merchandise Authorization 77 RMA, see Return Merchandise Authorization 77 RTC battery... reader 90 Ethernet 90 hard disk drive 89 memory 89 optical disc drive 90 power management 91 power supply unit 91 processor 88 system BIOS 88 system chipsets 88 Standard CMOS Features menu ...