Acer Aspire X1420G Acer Aspire X1400 and X1420 Desktop Series Service Guide
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- Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 1
Aspire AX1400 Desktop Computer Service Guide PRINTED IN TAIWAN - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 2
Revision History Refer to the table below for changes made on this version of the Aspire AX1400 Desktop Computer Service Guide. Date Chapter Updates ii Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 3
, manual or otherwise, without the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice. Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 4
Alerts you to any physical risk or system damage that might result from doing or not doing specific actions. Gives precautionary measures to avoid possible hardware or software problems. Reminds you to do specific actions relevant to the accomplishment of procedures. iv Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 5
regional office MAY have decided to extend the functionality of a machine (e.g. add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cases, please contact your regional offices or the responsible personnel/channel to - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 6
vi Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 7
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 Hardware Diagnostic Procedure 45 System Check Procedures 45 Checkpoints 46 POST Error Indicators 50 BIOS Recovery 61 BIOS - Acer Aspire X1420G | 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 X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 9
in the NVIDIA® nForce® Chipset • Two DIMM slots supporting 240-pin unbuffered DDR3 SDRAM modules • Data rate supported: 800/1066/1333 MT/s • Maximum memory: 4 GB (using two 2 GB modules) • One PCI Express x16 slot (reserved for GPU card installation) • One PCI Express x1 slot • Wired LAN: Realtek - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 10
jack - Microphone jack - CF card slot - Memory Stick PRO card slot • Rear panel - PS/2 keyboard and mouse ports - External display (VGA) port - USB ports (four) - Ethernet jack (RJ45) - Microphone, line-out, and line-in jacks • Hard drive activity • Power status 2 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 11
Physical Specifications Aspect Chassis dimension (W × D × H) System weight Mainboard form factor Mainboard dimensions (W × H) Description 100 mm (W) X 367.8 mm (D) x 269 temperature Operating humidity Description 5 to 35 °C (41 to 95 °F) 15% to 80% RH non-condensing Aspire AX1400 Service Guide 3 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 12
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 USB 2.0 ports 7 Headphone jack 8 Microphone-in jack 9 USB 2.0 ports 10 USB 2.0 port 11 Acer logo 4 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 13
Rear View No. 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 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 14
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mainboard (BT1) may be defective. In this case, the system cannot retain configuration values in CMOS. Replace the RTC battery with a new one. NOTE For ease of reading, CMOS Setup Utility will be simply referred to as "Setup" or "Setup Utility" in this Service Guide. Aspire AX1400 Service Guide 7 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 16
enable you to change the values for the option. Use the Up/Down/Left/Right arrow keys to scroll through the items in the submenu 8 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 17
in square brackets [ ] is user-configurable. Grayed-out parameters are not user-configurable for one of the following BIOS Features • BIOS Security Features • Advanced Chipset Features • Load Default Settings • Integrated Peripherals • Save & Exit Setup • Power Aspire AX1400 Service Guide 9 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 18
on the system Speed of the processor installed on the system Size of system memory detected during boot-up Official model name of the computer. System serial number. Current system BIOS version Date when the CMOS setup utility was released. System asset tag number 10 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 19
MM:SS (hour:minute:second) Your Aspire computer supports two SATA channels, each channel allows one BIOS will ignore any errors detected during POST • All, but Keyboard - If a keyboard error is detected, BIOS will pause the system. All Errors No Errors All, But Keyboard Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 20
the boot device priority sequence foe available network drives. If you set this item to On, the keyboard Num Lock key will be active when the BIOS to emit error beeps or display error messages during USB device enumeration. On Off Enabled Disabled Enabled Disabled 12 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 21
sequence is: PCIE, Onboard, then PCI. When a GPU expansion board is installed, you can select how the system video memory (frame buffer) is allotted. Value Enabled Disabled Enabled Disabled Enabled Disabled Auto PCIE Onboard PCI Auto 32 MB 64 MB 128 MB 256 MB Aspire AX1400 Service Guide 13 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 22
Support USB Storage Emulation Enables or disables support for a USB mouse and USB keyboard. When enabled, any attached USB mouse or USB keyboard can control the system even when there is no USB driver Disabled Enabled Disabled Enabled Disabled Enabled Disabled 14 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 23
a network message. Enables or disables the system to wake up from a power-saving mode when a PS/2 keyboard or mouse is used. Value S3 (STR) S1 (POS) Enabled Disabled Enabled Disabled Enabled Disabled Enabled Disabled Enabled Disabled Enabled Disabled Enabled Disabled Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 24
PC Health Status Field CPU Temperature System Temperature CPU Fan Speed System Fan Speed CPU Core +1.2V +3.30V +5.00V +12.0V 5VSB VBAT Description Value These items lets you monitor the parameters for critical voltages, temperatures and fan speeds. 16 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 25
Spread Spectrum Description When enabled, clock signals will be sent to the PCI and memory slots regardless of whether the slot is occupied or not. When the mainboard's clock generator pulses, the extreme values of the pulses creates EMI (electromagnetic interference). Set this field to Enabled - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 26
keyboard). • System passwords are case-insensitive. • When you are prompted to enter a password, you have three tries before the system halts. Do not forget your password. If you forget your password, you may have to return your computer to your dealer to reset it. 18 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 27
and close the Setup Utility. To change a system password: 1. Select Change Supervisor Password or Change User Password, then press Enter. The password box appears. 2. Type the original password, then press Enter save the changes you made and close the Setup Utility. Aspire AX1400 Service Guide 19 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 28
Settings Execute this menu to load the factory-default settings for all Setup parameters. Keyboard shortcut: F9 Perform the steps below to load the system default settings: 1. Select menu to save the changes made and closes the Setup Utility. Keyboard shortcut: F10 20 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 29
Exit Without Saving Execute this menu to closes the Setup Utility without making any changes. Aspire AX1400 Service Guide 21 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 30
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card reader slots are empty. 2. Turn off the power to the computer and all peripherals. 3. Unplug the power cord from the computer. 4. Unplug the network cable and all connected peripheral devices from the computer. 5. Place the computer on a flat, steady surface. Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 32
2.5 cm (1.0 in) to release it from the chassis notches, then detach the panel from the chassis. 3. Put the side panel aside for reinstallation later. 24 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 33
interior. 2. Pull the front bezel away from the chassis. NOTE: The power switch and LED cable from the front bezel is still connected to its connector on the mainboard. To detach the front bezel completely, you have to remove the hard disk and optical drive. Aspire AX1400 Service Guide 25 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 34
sink fan assembly, in an upright position, on top of the optical drive, as shown below, then disconnect the fan cable from the mainboard. 26 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 35
:If you are going to install a new processor, note the arrow on the corner to make sure the processor is properly oriented over the socket. Aspire AX1400 Service Guide 27 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 36
Removing the HDD-ODD Bracket 1. Remove the two screws that secure the HDD-ODD bracket to the chassis. 2. Lift the bracket up and turn it over. 28 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 37
Removing the Optical Drive and the Hard Disk Drive 1. Disconnect the SATA and power cables from the rear of the optical drive. 2. Disconnect the other end of the SATA cable from the mainboard. Aspire AX1400 Service Guide 29 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 38
3. Disconnect the SATA and power cables from the rear of the hard disk drive. 4. Disconnect the other end of the SATA cable from the mainboard. 30 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 39
5. Remove the screws that secure the optical drive to the HDD-ODD bracket. 6. Pull the optical drive out of the drive bay. Aspire AX1400 Service Guide 31 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 40
7. Remove the four screws that secure the hard disk drive to the HDD bracket. 8. Slide the hard disk drive out of the bracket. 32 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 41
Removing the Front Bezel 1. Disconnect the power button/LED cable from its mainboard connector. 2. Pull out the power button/LED cable from the chassis. 3. Detach the front bezel. Aspire AX1400 Service Guide 33 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 42
Removing the Expansion Boards 1. Remove the screw from the expansion board bracket opposite the PCIEX2 slot. 2. Gently pull up the expansion board to remove it from the mainboard. 34 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 43
3. Remove the screw from the expansion board bracket opposite the PCI_1 slot. 4. Gently pull up the expansion board to remove it from the mainboard. Aspire AX1400 Service Guide 35 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 44
the Power Supply Unit 1. Disconnect the 4-pin and the 24-pin ATX power supply cables from its mainboard connector. a. Squeeze on the retaining latch (a) attached to the cable end of the connector. b. Grasp the cable end of the connector and pull it straight up (b). 36 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 45
2. Remove the screw that secures the power supply to the chassis. 3. Remove the three screws that secure the power supply to the rear panel. Aspire AX1400 Service Guide 37 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 46
4. Lift the power supply module out of the chassis. Removing the Front I/O and Optional Card Reader Assemblies 1. Disconnect the front I/O and optional card reader cables from their mainboard connectors. 38 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 47
2. Pull up the plastic clips to release the cables. Aspire AX1400 Service Guide 39 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 48
3. Remove the optional card reader assembly. a. Remove the two screws that secure the optional card reader assembly to the bracket. b. Pull the optional card reader assembly out of the bracket. 4. Remove the front I/O and optional card reader board bracket. 40 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 49
a. Remove the screw that secures the bracket to the chassis. b. Pull the bracket out the chassis. Aspire AX1400 Service Guide 41 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 50
5. Remove the front I/O assembly. a. Remove the two screws that secure the front I/O assembly to the bracket. b. Remove front I/O assembly from the bracket. 42 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 51
Removing the Mainboard 1. Remove the four screws that secure the mainboard to the chassis. Note:Circuit boards >10 cm2 has been highlighted with the yellow rectangle as above image shows. Please detach the Circuit boards and follow local regulations for disposal. Aspire AX1400 Service Guide 43 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 52
2. Lift the board from the chassis. 3. Remove the RTC battery. Note:RTC battery has been highlighted with the yellow circle as above image shows. Please detach the RTC battery and follow local regulations for disposal. 44 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 53
slots on the rear panel are not blocked. 3. Make sure that there is no point of contact in the system that can cause a power short. If the cause of the failure is still can not be determined, perform the "System Internal Inspection" procedure described on the next page. Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 54
. If memory sizing module not executed, start memory refresh and do memory sizing in bootblock code. Do additional chipset initialization. Re-enable CACHE. Verify that flat mode is enabled. Test base 512 KB memory. Adjust policies and cache first 8 MB. Set stack. 46 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 55
memory and control is given to it. BIOS now executes out of RAM. Both key sequence and OEM specific method is checked to determine if BIOS recovery is forced. Main BIOS checksum is tested. If BIOS recovery into register. Give control to F000 ROM at F000:FFF0h. Aspire AX1400 Service Guide 47 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 56
for more information. USB controllers are initialized at this point. Initializes DMAC-1 & DMAC-2. Initialize RTC date/time. Test for total memory installed in the system. Also, Check for DEL or ESC keys to limit memory test. Display total memory in the system. 48 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 57
RAM size if needed. Updates CMOS memory size from memory found in memory test. Allocates memory for Extended BIOS Data Area from base memory. Programming the memory of chipset registers. Save system context for ACPI. Passes control to OS Loader (typically INT19h). Aspire AX1400 Service Guide 49 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 58
be related to a hardware device. Others may indicate a problem with a device configuration. In some cases an error message may include recommendations for troubleshooting or require that you press the Enter key to display recommendations. Follow the instructions on the screen. It is recommended that - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 59
Gate20 Error Multi-Bit ECC Error Parity Error RAM R/W test failed CMOS Memory Size Wrong Description The BIOS is unable to properly control the mainboard's Gate A20 function, which controls access of memory over 1 MB. This may indicate a problem with the mainboard. This message will only occur - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 60
Slave failed an ATAPI compatibility test. This message is typically displayed when the BIOS is trying to detect and configure IDE/ATAPI devices in POST. The IDE/ATAPI typically displayed when the BIOS is trying to detect and configure IDE/ATAPI devices in POST. 52 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 61
4th IDE controller failed an ATAPI compatibility test. This message is typically displayed when the BIOS is trying to detect and configure IDE/ATAPI devices in POST. The IDE/ATAPI device . S.M.A.R.T. failure messages may indicate the need to replace the hard disk. Aspire AX1400 Service Guide 53 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 62
failed to pass the Refresh Retrace Test. BIOS POST could not initialize the Master Interrupt Controller. This may indicate a problem with system hardware. BIOS POST could not initialize the Slave Interrupt Controller. This may indicate a problem with system hardware. 54 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 63
. PS/2 mouse support is enabled in the BIOS setup but the device is not detected. Keyboard controller failure. This may indicate a problem with system hardware. PS/2 keyboard is locked. User needs to unlock the keyboard to continue the BIOS POST. The system has been halted. A reset or power cycle is - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 64
. Blinking cursor only; system does not work. • IDE drive connection/cables • IDE disk drives • See "Undetermined Problems". • Mainboard NOTE Ensure the memory modules are installed properly and the contact leads are clean before diagnosing any system problems. 56 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 65
sound volume. • Speaker power/connection/cable. • CD/DVD-ROM drive. NOTE Make sure the optical disc drive is configured correctly in CMOS Setup, the cable/jumper are set correctly and the drive's optical lens is clean before diagnosing any optical drive problems. Aspire AX1400 Service Guide 57 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 66
For an external modem, make sure Power on By Ring in BIOS Setup or Power Management is set to Enabled. For the PCI modem, make sure 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 the modem card. • In Win 98, ensure the - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 67
the printer driver is properly installed. Refer to the printer service manual. • Printer • Printer cable • Mainboard. • Refer to the service manual for the printer. Keyboard-related Symptoms Symptom/Error Action/FRU Some or all keys on keyboard do not work. • Keyboard Power Supply-related - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 68
video card is not working, its memory is not accessible, or its BIOS may be corrupt. • Something is wrong with the mainboard. BIOS damaged. Processor jump to boot block to execute the default procedure. CMOS checksum error Undetermined Problems NOTE • Verify that all attached devices are supported - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 69
BIOS recovery process. • The BIOS crisis recovery disk should be prepared in a computer running the Windows XP or Windows Vista OS. Creating the BIOS Crisis Recovery Press the power button to turn on the computer. The system will now execute the BIOS recovery process. Aspire AX1400 Service Guide 61 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 70
BIOS. 5. Reboot the computer. 6. Press Delete to run the CMOS Setup Utility. 7. Press F9 to load the system default settings. 8. Select Ok, then press Enter. 9. Press F9 to save the default settings and close the Setup utility. 10. Select Ok, then press Enter. 62 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 71
power button to turn on the computer. 2. Click Start | Command Prompt | Run as administrator. 3. Perform the steps below if your computer is running 32-bit Windows. a. Key in 'cd wintool\32'. (Go to BIOS path like "D:\WinTool\32") b. Key in 'flash1M.bat' or 'flash1M'. Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 72
c. Press Enter to flash the system BIOS. 4. Perform the steps below if your computer is running 64-bit Windows. a. Key in 'cd wintool\64'. (Go to BIOS path like "D:\WinTool\64") b. Key in 'flash1M.bat' or 'flash1M'. 64 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 73
system BIOS. 5. Reboot the computer. 6. Press Delete to run the CMOS Setup Utility. 7. Press F9 to load the system default settings. 8. Select Ok, then press Enter. 9. Press F9 to save the default settings and close the Setup utility. 10. Select Ok, then press Enter. Aspire AX1400 Service Guide 65 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 74
the AC power cord to the system. 13. Press the power button to turn on the computer. 14. During POST, press Delete to access the Setup Utility. 15. Press F9 to load the system default values. 16. Press F10 to save the changes you made and close the Setup Utility. 66 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 75
System Architecture Chapter 5 This chapter shows the block diagram and board layout of the Aspire AX1400 computer. Block Diagram The core subsystems of the Aspire AX1400 computer are depicted in the following block diagram. Aspire AX1400 Service Guide 67 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 76
16 USBLAN1 17 USBR1 18 VGA1 19 PWR1 20 KBMSCONN1 21 JBIOS1 Description PCIEX16 Slot PCIEX1 36-pin slot ALC662 Line in/Line Out/MIC RJ45+USB connector USB-A 8P connector VGA connector ATX 4-pin connector Keyboard and mouse connectors Clear CMOS jumper 68 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 77
the jumper. Jumper JBIOS1 Type 3-pin Description Clear CMOS Setting (default) 1-2: Close (default) 2-3: Open Before clearing the CMOS, make sure to turn off the system. Aspire AX1400 Service Guide 69 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 78
3: USB2_XN 4: USB4_XN 5: USB2_XP 6: USB4_XP 7:GND 8: GND 9: KEY 10: GND 1: PORT-F_L 2: AUGND 3: PORT-F_R 4: FRONT_AUD_DET 5: PORT-E_R 6: MIC2_JD 7: AUGND 8: KEY 9: PORT-E_L 10: LINE2_JD 70 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 79
17:GND 6:VCC 18:GND 7:GND 19:GND 8:ATX_PWRGD 20:NC 9:5VSB 21VCC 10:+12V 22:VCC 11:+12V 23:VCC 12:VCC3 24:GND Aspire AX1400 Service Guide 71 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 80
the main board's optional devices: SATA1~2: Serial ATA connectors These connectors are used to support the new Serial ATA devices for the highest datatransfer rates (3.0 Gb/s), simpler disk 3 TX- 5 RX- 7 Ground Pin Signal Name 2 TX+ 4 Ground 6 RX+ 72 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 81
the user to USBF1~3: Front Panel USB headers The motherboard has two USB ports installed on Power Front Panel USB Power USB Port 0 Negative Signal USB Port 1 Negative Signal USB Port 0 Positive Signal USB Port 1 Positive Signal Ground Ground No pin Overcurrent signal Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 82
. 3. Connect the case switches and indicator LEDs to the LEDH1. 4. Connect the auxiliary case power supply connector to PWR1. 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 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 83
Switch (-) 6 PWRSW 7 HWRST_L Reset Switch (+) 8 GND 9 F_PANEL_DET Reserved 10 KEY 11 NC Reserved 12 VCC 13 NC Reserved 14 F_LAN_LED Function *MSG LED (+) *MSG LED (-) Power Switch (+) Power Switch (-) No pin Reset Switch (+) Reset Switch (+) Aspire AX1400 Service Guide 75 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 84
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Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for service. NOTE Follow the local government regulations, or the rules set by your regional office on how to return or dispose of defective parts. Exploded Diagram Aspire AX1400 Service Guide 77 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 86
VGA DONGLE C.A. SATA HDD BOXERII C.A. LED SWITCH BOXER X350 C.A. SATA ODD BOXERII POWER CORD 1800MM 250V UK FX.10100.023 NI.10200.009 NI.10200.023 NI.10200.038 VG.PCPT3.153 VG.APC54.511 D0.VGA26.P01 50.SC101.003 50.SE301.002 50.SC101.002 27.03118.031 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 87
3GH IC CPU ATHLONII 160U AM3+ 1.8G IC CPU ATHLONII 250U AM3+ 1.6G IC CPU ATHLONII 260U AM3+ 1.8G Acer Part No. 33.SE301.001 60.SE901.001 60.SE201.002 60.SE901.002 33.SC101.002 60.SE201.004 KC.AT202 240 KC.AE202.400 KC.AE202.405 KC.AU202.160 KC.AU202.250 KC.AU202.260 Aspire AX1400 Service Guide 79 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 88
Category CPU/PROCESSOR DVD-RW DRIVE HDD/HARD DISK DRIVE Part Name Description Acer Part No. CPU AMD PHENOMII X 3 700E IC CPU PHENOMII X 3 2.4GHZ 7.5M TOTAL CACHE 700E 2.4GH 7200RPM SATA SEAGATE SEAGATE ST31000528AS LF HDD 1TB SGT ST31000528AS 7.2KR KH.01K01.007 80 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 89
0759 PS/2 107K B KEYBOARD PS/2 109 KEY KB CHICONY KB-0759 BLACK JAPANESE W/O EKEY PS/2 109K B KEYBOARD PS/2 105 KEY CHICONY KB-07596D125522V BLACK GERMAN W/O EKEY KB CHICONY KB-0759 PS/2 105K B Acer Part No. KH. PS203.292 KB.PS203.293 KB.PS203.294 KB.PS203.295 Aspire AX1400 Service Guide 81 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 90
ROMANIAN W/O EKEY PS/2 105K B KEYBOARD PS/2 105 KEY BLACK TURKISH W/O EKEY KB CHICONY KB-0759 PS/2 105K B KEYBOARD PS/2 105 KEY BLACK SPANISH LATIN W/O EKEY KB CHICONY KB-0759 PS/2 105K B Acer Part No. KB.PS203.296 KB. .313 KB.PS203.314 KB.PS203.315 KB.PS203.316 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 91
KEYBOARD PS2 SK-9620 SG-30600 KEYBOARD PS2 SK9620 SG-30610 KEYBOARD PS2 SK-9620 SG-30600 KEYBOARD PS2 SK-9620 SG-30600 KB SK-9620 107K PT/BR NO EURO# KEYBOARD PS2 SK-9620 SG-30600 KEYBOARD PS2 SK-9620 SG-30600 KEYBOARD PS2 SK-9620 SG-30600 Acer PS20B.080 KB.PS20B.081 Aspire AX1400 Service Guide 83 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 92
TURKISH-Q W/O EKEY EURO#NIW/ KEYBOARD PS/2 105 KEY BLACK ARABIC FRENCH W/O EKEY KEYBOARD PS2 SK-9620 SG-30600 KEYBOARD PS/2 105 KEY BLACK KAZAKH W/O EKEY KB SK-9620 105K KA NO EURO#NIW Acer Part No. KB.PS20B.082 KB PS20B.101 KB.PS20B.102 KB.PS20B.103 KB.PS20B.104 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 93
EKEY KEYBOARD PS/2 105KEY KB PS2 SK-9620 SG- LITEON SG-30610-93W BLACK 30610-93W EN ENGLISH/CANADIAN FRENCH MAIN BOARD DA061L/ AMANALO WNMCP61PGBEM W/RTC BATTERY W/O CPU&MEMORY MB WNMCP61PGBEM DA061L/AMANALO Acer .002 DIMM 2G NT2GC64B8HA0NF-CG KN.2GB03.016 Aspire AX1400 Service Guide 85 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 94
PS2 OPT 910000849 LOGI MOUSE PS2 OPT SM9620 LITEON Acer Part No. MS.11200.013 MS.11200.017 POWER SUPPLY SCREWS SPEAKER POWER SUPPLY 220W NPFC 115V/230V LITEON PS-522106A1-ROHS EUP CHIAMAW 9M20A200-000 ACER LOGO LF 0810 SPEAKER ACER LOGO/ SP.10600.011 LF0810 86 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 95
Aspire AX1400 Service Guide 87 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 96
cache DDR3 speed support Thermal design power Specification AMD Sempron 140 Chipsets Item Chipset Specification • NVIDIA® nForce® 430 MCP (MCP61), or • NVIDIA® nForce® 730a/720a MCP (MCP78) BIOS Item BIOS chip Setup utility Specification AMI BIOS CMOS Setup Utility Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 97
Controller Number of DIMM slot Maximum memory Data rate Supported capacities DIMM type Supported brands Population rule Specification Integrated in the NVIDIA® nForce® Chipset 2 4 GB (using • WD - WD10EADS-22M2B0 • Seagate Brinks - ST31500341AS • WD - WD15EADS-22P8B0 89 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 98
Optical Disc Drive Item Controller Type Form factor Interface Write/read speed Supported models Specification Integrated in the NVIDIA® nForce® Chipset Supports DVD-R/RW drive or DVD-Super Multi double-layer drive 5.25-inch standard SATA 16x • HLDS DH20N • PLDS DH-16D5SH Card Reader (optional) - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 99
• 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 Disabled Disabled S4 V N/A Disabled Disabled Disabled S5 V N/A Disabled Disabled Disabled 91 Aspire AX1400 Service Guide - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 100
Aspire AX1400 Service Guide 92 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 101
29 HDD-ODD bracket 28 mainboard 43 memory 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 77 front - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 102
20 side panel remove 24 software specifications antivirus 2 operating system 1 specifications audio 90 card 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 11 - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 103
3 troubleshooting BIOS checkpoints 46 BIOS recovery 61 BIOS update 62 clearing CMOS 66 component failure 56 hardware diagnostic procedure 45 POST error indicators 50 U undetermined problems 60 USB ports bootable device 14 front 4, 5 legacy device 14 user password 18 V VGA port 5 video controller - Acer Aspire X1420G | Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 104
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