eMachines EL1800 Service Guide Service guide files and updates are available on the AIPG/CSD web; for more information, please refer to http://csd.acer.com.
Revision History Please refer to the table below for the updates made on eMachines EL1800 series service guide.
Copyright Copyright © 2008 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice.
Conventions The following conventions are used in this manual: IV SCREEN MESSAGES Denotes actual messages that appear on screen. NOTE Gives bits and pieces of additional information related to the current topic. WARNING Alerts your to any damage that might result from doing or not doing specific actions. CAUTION Gives precautionary measures to avoid possible hardware or software problem. IMPORTANT Reminds you to do specific actions relevant to the accomplishment of procedures.
Preface Before using this information and the product it supports, please read the following general information. 1. 2. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION decided for Acer's "global" product offering. To better fit local market requirements and enhance product competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g. add-on card, modem, or extra memory capability).
Introducing the Motherboard ................................................................................. 2 Features .................................................................................................. 3 Motherboard Components .................................................................... 5 Block Diagram ........................................................................................ 6 EL1800 ....................................................................................
Chapter 1 Introducing the Motherboard Introduction Thank you for choosing the MCP73T-AD motherboard. This motherboard is a high performance, enhanced function motherboard designed to support the LGA775 socket for Intel® CoreTM 2 Quad/Intel® CoreTM 2 Duo/Pentium® D/Pentium® 4/Celeron® D processors for high-end business or personal desktop markets. This motherboard is based on NVIDIA® MCP73PV for best desktop platform solution.
Features Processor The motherboard uses an LGA775 type of Intel® CoreTM 2 Quad/Intel® CoreTM 2 Duo/Pentium® D/Pentium® 4/Celeron® D that carries the following features: z Accommodates Intel® CoreTM 2 Quad/Intel® CoreTM 2 Duo/Pentium® D/Pentium® 4/Celeron® D processors z Supports a system bus (FSB) of 1333/1066/800/533 MHz z Supports “Hyper-Threading” technology CPU “Hyper-Threading” technology enables the operating system into thinking it’s hooked up to two processors, allowing two threads to be run i
Integrated I/O The motherboard has a full set of I/O ports and connectors: z Two PS/2 ports for mouse and keyboard z One serial port z One VGA port z One HDMI port z One ESATA port z Four USB ports z One LAN port z One optical SPDIFO port z Audio jacks for microphone, line-in and 6/8-channel (optional) line-out BIOS Firmware The motherboard uses AMI BIOS that enables users to configure many system features including the following: z Power management z Wake-up alarms z CPU parameters
Motherboard Components Table of Motherboard Components No Label 1 CPU Socket 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CPU_FAN DIMM1~2 ATX_POWER GPIO32 GPIO33 CLR_CMOS1 PANEL1 F_USB1~3 SATA1~2 1394A1* F_AUDIO1 PCIE16X SPDIF1 PCIE1 ATX12V1 Component LGA775 socket for Intel® CoreTM2 Quad/Intel® CoreTM 2 Duo/Pentium® D/Pentium® 4/Celeron® D CPUs CPU cooling fan connector 240-pin DDR2 SDRAM slots Standard 24-pin ATX power connector General Purpose Input/Output 32 General Purpose Input/Output 33 Clear CMOS jum
Block Diagram 6
EL1800 The computer’s front panel consists of the following： Front view No Icon Component Description Connects to USB 2.0 devices (e.g.,USB mouse, USB camera). 1 USB ports 2 Compact flash CF I/II (CompactFlash Type I/II) slot 3 Microphone-in jack Accepts input from external microphones. 4 Headphone/Speaker-out/line-out port. Connects to audio line-in devices (e.g.,speakers,headphones).
Rear view No 8 Icon Component Description 1 Keyboard connector 2 HDMI Port 3 Monitor port Connects to a display devices(e.g.,external monitor, LCD projector). 4 Line-out jack Accepts audio line-out devices 5 Optical SPDIF Digital Audio Output 6 Mouse connector 7 Serial port 8 USB ports. Connects to USB 2.0 devices(e.g.,USB mouse, USB camera). 9 eSATA port Connects to eSATA devices 10 Network port Lights to indicate the status of wireless LAN communications.
Audio Jack Function Table Color/Use Blue Green Pink Orange Black Headphone Line-in Headphone Mic-in Center&woofer Rear 2CH Line-in Headphone Mic-in Center&woofer Rear 2.1CH Line-in Headphone Mic-in Center&woofer Rear 5.1CH Line-in Headphone Mic-in Center&woofer Rear 7.
System Peripherals The EL1800 series computer consist of the system itself, and system peripherals, like a mouse, keyboard, card reader and a set of speakers (optional). This section provides a brief description of the basic system peripherals. Mouse (PS/2 or USB, manufacturing option) The included mouse is a standard two-button wheel mouse. Connect the mouse to the PS/2 mouse port or USB port on the back panel of the system.
Card Reader (Option) Memory cards are used in a wide selection of digital cameras, PDAs, MP3 players and mobile phones. Selected computers include an “all-in-one”memory card reader that allows you read and write the most common types, such as MMC (Multi Media Card™), CF (Compact Flash®), IBM Microdrive™, SM (Smart Media™), SD (Secure Digital)™, or MS (Memory Stick®). NOTE: Card reader are optional and the appearance might be different depending on the actual product.
Hardware Specifications and Configurations Processor Item Specification Type Accommodates Intel® CoreTM 2 Quad/Intel® CoreTM 2 Duo/Pentium® D/Pentium® 4/Celeron® D processors Socket LGA775 Speed Depends on CPU which is configured FSB 1333/1066/800/533 MHz BIOS Item Specification BIOS code programmer AMI BIOS version R01-A1 (or newer version) BIOS ROM type Flash ROM BIOS ROM size 8MB BIOS ROM package SPI DIP8P Support protocol ACPI 2.0, APM 1.2, SMBIOS 2.
System Memory Item Memory slot number Support memory size per socket Support maximum memory size Support memory type Support memory interface Support memory module package Support parity check feature Support to Error Correction Code (ECC) feature Memory module combinations Specification 2 slots 512MB to 4GB 8GB DDR2 SDRAM DDR2 800/667 240-pin DIMM Yes Yes You can install memory modules in any combination as long as they match the specifications.
Power Management S1 S3 (Suspend to RAM) Power Button Enabled Enabled Enabled Enabled USB Keyboard Enabled Enabled Disabled Disabled Devices 14 S4 (Suspend to DIsk) S5 (Shut Down) LAN Enabled Enabled Enabled Disabled RTC Disabled Disabled Disabled Disabled
Power Management Function (ACPI support function) Device Standby Mode z z z z z Independent power management timer for hard disk drive devices (0-15 minutes, time step=1 minute). Hard disk drive goes into Standby mode (for ATA standard interface). Disable V-sync to control the VESA DPMS monitor. Resume method: device activated (Keyboard for DOS, keyboard & mouse for Windows). Resume recovery time: 3-5 sec. Global Standby Mode z z z z z Global power management timer (2-120 minutes, time step=10 minute).
Chapter2 Chapter 2 System Utilities About the Setup Utility The computer uses the latest “American Megatrends Inc.” BIOS will support for Windows Plug and Play. The CMOS chip on the motherboard contains the ROM setup instructions for configuring the motherboard BIOS. The BIOS (Basic Input and Output System) Setup Utility displays the system’s configuration status and provides you with options to set system parameters.
Setup Utility Menus Pressing the del key accesses the BIOS Setup Utility: CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc.
Updating the BIOS You can download and install updated BIOS for this motherboard from the manufacturer’s Web site. New BIOS provides support for new peripherals, improvements in performance, or fixes for known bugs. Install new BIOS as follows: 1 2 3 4 5 Create a bootable system disk. (Refer to Windows online help for information on creating a bootable system disk.) Download the Flash Utility and new BIOS file from the manufacturer’s Web site. Copy these files to the system diskette you created in Step 1.
Product Information This option displays basic information about your system. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc. Product Information Processor Type Intel ( R) Core( TM)2 Duo CPU E7200 @ 2.53GHz Processor Speed 2.
Standard CMOS Features This option displays basic information about your system. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc.
XSATA Port1~3 Your computer has three SATA ports. Each port allows one SATA device to install. Use these items to configure each device on the port. Press to display the IDE submenu: CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc. SATA Port1 Item Help SATA 1 Device : Not Detected ↑↓→←：Move Enter：Select F1：General Help +/-：Value F10：Save ESC：Exit F9：Optimized Defaults Press to return to the Integrated Peripherals page.
Advanced BIOS Features This page sets up more advanced information about your system. Handle this page with caution. Any changes can affect the operation of your computer. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc. Advanced BIOS Feature Reset Configuration Data NO Item Help Quick Boot Enabled Quiet Boot Enables Clear NVRAM during 1st Boot Device Hard Drive System Boot. 2nd Boot Device CD/DVD 3rd Boot Device Removable Dev.
Advanced Chipset Features This page sets up more advanced information about your system. Handle this page with caution. Any changes can affect the operation of your computer. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc.
Integrated Peripherals This page sets up some parameters for peripheral devices connected to the system. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc.
Power Management Setup This page sets up some parameters for system power management operation. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc. Power Management Setup ACPI Aware O/S Yes Item Help ACPI Suspend Mode S3 (STR) Power On by RTC Alarm Disabled Include ACPI APIC Power On by PCIE Devices Enabled Table pointer to Power On by Modem Ring Enabled RSDT pointer list.
PC Health Status On motherboards support hardware monitoring, this item lets you monitor the parameters for critical voltages, temperatures and fan speeds. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc. PC Health Status System Temperature 30°C/86°F Item Help CPU Fan Speed 1110 RPM CPU Core 1.216 V Options +3.30V 3.328 V Disabled +5.00V 5.026 V Enabled +12.0V 11.968 V 5VSB 5.080 V VBAT 2.
Frequency/Voltage Control This page enables you to set the clock speed and system bus for your system. The clock speed and system bus are determined by the kind of processor you have installed in your system. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc. Frequency/Voltage Control Spread Spectrum Enabled Item Help Processor Multiplier 9.
BIOS Security Features This item helps you install or change a password. CMOS Setup Utility-Copyright( C ) 1985-2008, American Megatrends, Inc. BIOS Security Features Supervisor Password Not Installed Item Help User Password Not Installed Change Supervisor Password Press Enter ↑↓→←：Move Enter：Select F1：General Help +/-：Value F10：Save ESC：Exit F9：Optimized Defaults Supervisor Password (Not Installed) This item indicates whether a supervisor password has been set.
Load Default Settings This option opens a dialog box that lets you install stability-oriented defaults for all appropriate items in the Setup Utility. Select and then press to install the defaults. Select and then press to not install the defaults.. Save & Exit Setup Highlight this item and press to save the changes that you have made in the Setup Utility and exit the Setup Utility.
Chapter 3 Machine Disassembly and Replacement To disassemble the computer, you need the following tools: z Wrist grounding strap and conductive mat for preventing electrostatic discharge. z Wire cutter. z Phillips screwdriver (may require different size). NOTE: The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding components to avoid mismatches when putting back the components.
General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system.
Disassembly Procedure This section tells you how to disassemble the system when you need to perform system service. CAUTION: Before you proceed, make sure you have turned off the system and all peripheral connected to it.
Standard Disassembly Process 1. Opening the computer: 1.1. Remove the three screws fixed in the side-panel. 1.2. Remove the side-panel. 2. Removing the Front Bezel 2.1. Remove the Front Bezel.
3. 34 Removing the ODD & HDD Bracket 3.1. Remove the screw fixed in the ODD. 3.2. Disconnect the SATA ODD cable and ODD power-cable from the rear of ODD and MB 3.3.
3.4. Remove the screw fixed in the PSU 3.5. Remove the two screws fixed in the front chassis. 3.6.
36 3.7. Remove the ODD bracket 3.8. Disconnect the HDD power-cable 3.9.
4. Removing the power-supply 4.1 Remove the screw fixed in the M/B support 4.2 Remove the three screws fixed in the rear chassis 4.
4.4 Remove the power-supply 5. Removing the VGA Card 5.1 Remove the screw fixed in the rear chassis. Press the PCI ear lever (highlighted in red) and pull the leaver outwards a little to release the PCI latch then remove it. 6. Removing the Modem Card 6.1 38 Remove the screw fixed in the rear chassis.
7. Removing the Card Reader and Front IO Board 7.1 Disconnect the Card Reader and Front IO cable from the main board. Audio for Front IO Board USB cable for Card Reader 7.2 Remove the two screws fixed in the front chassis. 7.3 Remove the Front IO Bracket.
40 7.4 Remove the two screws fixed in the Front IO Bracket 7.5 Remove the Card Reader. 7.
7.7 Remove the two screws fixed in the Front IO Bracket 7.8 Remove the Front IO Board 7.
8. Removing the Main Board 42 8.1 Remove the six screws fastening the main board to the case. 8.2 Remove the six screws fastening the main board to the case 8.
8.4 Remove the Rear IO Shield. 8.5 Release the two latch show bellow then remove the Memory 8.
44 8.7 Release the CPU Cooler screw x4 then remove it 8.
Chapter 4 Troubleshooting This chapter provides troubleshooting information for the EL1800 series Service Guide z z z z Power-On Self-Test (POST) Post Error Messages List Error Symptoms List Undetermined Problems 45
Power-On Self-Test (POST) Each time you turn on the system, the Power-on Self Test (POST) is initiated. Several items are tested during POST, but is for the most part transparent to the user. The Power-On Self Test (POST) is a BIOS procedure that boots the system, initializes and diagnoses the system components, and controls the operation of the power-on password option.
Checkpoint Before D0 D0 D1 D2 Description If boot block debugger is enabled, CPU cache-as-RAM functionality is enabled at this point. Stack will be enabled from this point. Early Boot Strap Processor (BSP) initialization like microcode update, frequency and other CPU critical initialization. Early chipset initialization is done. Early super I/O initialization is done including RTC and keyboard controller. Serial port is enabled at this point if needed for debugging. NMI is disabled.
Checkpoint F4 Make flash write enabled through chipset and OEM specific method. Detect proper flash part. Verify that the found flash part size equals the recovery file size. The recovery file size does not equal the found flash part size. FC Erase the flash part. FD C0 Program the flash part. The flash has been updated successfully. Make flash write disabled. Disable ATAPI hardware. Restore CPUID value back into register. Give control to F000 ROM at F000:FFF0h.
Checkpoint 2E 31 33 37 38 39 3A Description Initializes all the output devices. Allocate memory for ADM module and uncompress it. Give control to ADM module for initialization. Initialize language and font modules for ADM. Activate ADM module. Initializes the silent boot module. Set the window for displaying text information. Displaying sign-on message, CPU information, setup key message, and any OEM specific information. Initializes different devices through DIM.
Checkpoint 2A Description Initialize different buses and perform the following functions: Reset, Detect, and Disable (function 0); Static Device Initialization (function 1); Boot Output Device Initialization (function 2). Function 0 disables all device nodes, PCI devices, and PnP ISA cards. It also assigns PCI bus numbers. Function 1 initializes all static devices that include manual configured onboard peripherals, memory and I/O decode windows in PCI-PCI bridges, and noncompliant PCI devices.
POST Error Messages List If you cannot run the diagnostics program tests but did receive a POST error message, use “POST Error Messages List” to diagnose system problems. If you did not receive any error message, look for a description of your error symptoms in “Error Symptoms List” on page 66. NOTE: When you have deemed it necessary to replace an FRU, and have done so, you must run a total system check to ensure that no other activity has been affected by the change.
BIOS Messages 52 Action/FRU Keyboard Error Or No Keyboard Present Cannot initialize the keyboard. Make sure the keyboard is attached correctly and no keys are pressed during POST. To purposely configure the system without a keyboard, set the error halt condition in Setup to HALT ON ALL, BUT KEYBOARD. The BIOS then ignores the missing keyboard during POST. Keyboard is locked out - Unlock the key This message usually indicates that one or more keys have been pressed during the keyboard tests.
Error Symptoms List NOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/ FRU listed in right column is the most likely cause.
Error Symptom Diskette drive read/write error. Diskette drive LED comes on for more than 2 minutes when reading data. Diskette drive LED fails to light, and the drive is unable to access for more than 2 minutes. Diskette drive test failed. Action/FRU 1. 2. 3. 4. 1. 2. 3. 4. 1. 2. 3. 4. 5. 1. 2. 3. 4. Diskette. Diskette drive cable. Diskette drive. Main board.
Error Symptom Action/FRU CD/DVD-ROM drive does not read and there are no messages are displayed. 1. CD/DVD-ROM drive can play audio CD but no sound output. 1. Real-time clock is inaccurate. CD may have dirt or foreign material on it. Check with a known good disc. 2. Ensure the CD/DVD-ROM driver is installed properly. 3. CD/DVD-ROM drive. Ensure the headphone jack of the CD/DVD-ROM has an output. 2. Turn up the sound volume. 3. Speaker power/connection/cable. 4. CD/DVD-ROM drive. Real-Time Clock 1.
Error Symptom Display changing colors. Action/FRU 1. Monitor signal connection/cable 2. Monitor 3. Main board Display problem not listed above (including blank or illegible monitor). 1. 2. 3. “Monitor" Load default settings (if screen is readable). Main board Parallel/Serial Ports Execute “Load BIOS Default Settings” in BIOS Setup to confirm ports presence before diagnosing any parallel/serial ports problems. Serial or parallel port loop-back test failed. 1.
Undetermined Problems If an error message is present, go to “POST Error Messages List” on page 64. If you did not receive any messages, if the symptom is listed in “or “Error Symptoms List” on page 66. If you still cannot solve the problem, continue with this check: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Check the power supply voltages. If the voltages are correct continue with the following steps: Power off the system unit.
Chapter 5 Installing the Motherboard Safety Precautions z z z z z Follow these safety precautions when installing the motherboard Wear a grounding strap attached to a grounded device to avoid damage from static electricity Discharge static electricity by touching the metal case of a safely grounded object before working on the motherboard Leave components in the static-proof bags they came in Hold all circuit boards by the edges.
Do not over-tighten the screws as this can stress the motherboard. Checking Jumper Settings This section explains how to set jumpers for correct configuration of the motherboard. Setting Jumpers Use the motherboard jumpers to set system configuration options. Jumpers with more than one pin are numbered. When setting the jumpers, ensure that the jumper caps are placed on the correct pins. The illustrations show a 2-pin jumper. When the jumper cap is placed on both pins, the jumper is SHORT.
Checking Jumper Settings The following illustration shows the location of the motherboard jumpers. Pin 1 is labeled. Jumper Settings Jumper Type CLR_CMOS 3-pin Description CLEAR CMOS Setting (Default) IIIustration 1-2: NORMAL. 2-3: CLEAR Before clearing the CMOS, make sure to turn the system off To avoid the system instability after clearing CMOS, we recommend users to enter the main BIOS setting page to “Load Default Settings” and then “Save & Exit Setup”.
Connecting Case Components After you have installed the motherboard into a case, you can begin connecting the motherboard components. Refer to the following: 1 2 3 4 Connect the CPU cooling fan cable to CPU_FAN. Connect the standard power supply connector to ATX_POWER. Connect the auxiliary case power supply connector to ATX12V1. Connect the case switches and indicator LEDs to the PANEL1. Connecting 20-pin power cable The power 20-pin connector allows you to connect to ATX v2.x power supply. With ATX v1.
CPU_FAN: Cooling Fan Power Connectors Pin 1 2 3 4 Signal Name GND +12V Sense PWM Function System Ground Power +12V Sensor CPU FAN control Users please note that the fan connector supports the CPU cooling fan of 1.1A ~ 2.2A (26.4W max) at +12V. ATX_POWER1:ATX 20-pin Power Connector Pin 1 2 3 4 5 6 7 8 9 10 Signal Name +3.3V +3.
Front Panel Header The front panel header (PANEL1) provides a standard set of switch and LED headers commonly found on ATX or Micro ATX cases.
Installing Hardware Installing the Processor Caution: When installing a CPU heatsink and cooling fan make sure that you DO NOT scratch the motherboard or any of the surface-mount resistors with the clip of the cooling fan. If the clip of the cooling fan scrapes across the motherboard, you may cause serious damage to the motherboard or its components. On most motherboards, there are small surface-mount resistors near the processor socket, which may be damaged if the cooling fan is carelessly installed.
CPU Installation Procedure The following illustration shows CPU installation components. 1 Install your CPU. Pull up the lever away from the socket and lift up to 90-degree angle. 2 Locate the CPU cut edge (the corner with the pin hold noticeably missing). Align and insert the CPU correctly. 3 Press the lever down and apply thermal grease on top of the CPU. 4 Put the CPU Fan down on the retention module and snap the four retention legs of the cooling fan into place.
Installing Memory Modules This motherboard accommodates two 240-pin unbuffered DIMMs and supports DDR2 800/667 DDR2 SDRAM. DDR2 SDRAM memory module table Memory Memory Bus DDR2 667 333 MHz DDR2 800 400 MHz You must install at least one module in any of the two slots. Each module can be installed with 4 GB of memory; the total memory capacity is 8 GB. Do not remove any memory module from its antistatic packaging until you are ready to install it on the motherboard. Handle the modules only by their edges.
Table A: DDR2(memory module)QVL(Qualified Vendor List) The following DDR2 800/667 memory modules have been tested and qualified for use with this motherboard Type Size 512MB 1GB DDR2 667 Vendor Module Name Apacer 78.91G92.9K5 Micron MT4HTF6464AY-667E1 PSC AL6E8E63J-6E1 Ramxel RML1520M38D6F-667 Samsung PC2-5300U-555-12-D3 Apacer AU01GE667C5KBGC Apacer 78.01G9O.
Type Size Vendor Module Name Kingston KHX6400D2ULK2/2G 9905315078.A00LF//Boxed DDR2 800 1GB Kingston KVR800D2N5/1G 1.8V 9905316-054.
Installing a Hard Disk Drive/CD-ROM/SATA Hard Drive This section describes how to install IDE devices such as a hard disk drive and a CD-ROM drive. About SATA Connectors Your motherboard features four SATA connectors supporting a total of four drives. MCP61SM -AM only has two SATA connectors supporting a total of two drives. SATA refers to Serial ATA (Advanced Technology Attachment) is the standard interface for the IDE hard drives which are currently used in most PCs.
Installing Add-on Cards The slots on this motherboard are designed to hold expansion cards and connect them to the system bus. Expansion slots are a means of adding or enhancing the motherboard’s features and capabilities. With these efficient facilities, you can increase the motherboard’s capabilities by adding hardware that performs tasks that are not part of the basic system.
Follow these instructions to install an add-on card: 1. 2. 3. Remove a blanking plate from the system case corresponding to the slot you are going to use. Install the edge connector of the add-on card into the expansion slot. Ensure that the edge connector is correctly seated in the slot. Secure the metal bracket of the card to the system case with a screw.
Connecting Optional Devices Refer to the following for information on connecting the motherboard’s optional devices: AUDIO1: Front Panel Audio header This header allows the user to install auxiliary front-oriented microphone and line-out ports for easier access.
F_USB1~3: Front Panel USB headers The motherboard has four USB ports installed on the rear edge I/O port array. Additionally, some computer cases have USB ports at the front of the case. If you have this kind of case, use auxiliary USB connector to connect the front-mounted ports to the motherboard.
Connecting I/O Devices The backplane of the motherboard has the following I/O ports: PS2 Mouse Use the upper PS/2 port to connect a PS/2 pointing device. PS2 Keyboard Use the lower PS/2 port to connect a PS/2 keyboard. HDMI port Connect HDMI connector to the HDMI device. Serial Port (COM1) Use the COM1 port to connect serial devices such as mice or fax/modems. VGA1 Port Connect your monitor to the VGA port.
Chapter 6 FRU (Field Replaceable Unit) List Exploded Diagram Chassis_H231(eBoxer2.
63
FRU List The FRU list will be updated later.
