Aspire T680 AcerPower FG 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 Aspire T680 & AcerPower FG service guide.
Copyright Copyright © 2005 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 you to any damage that might result from doing or not doing specific actions. CAUTION Gives precautionary measures to avoid possible hardware or software problems. 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. 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).
Table of Contents Chapter 1 System Specifications 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 MainBoard Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Removing the USB Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 Removing the Heatsink and CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 Removing the System FAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Removing the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Removing the Mainboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1 System Specifications Overview This model is a consumer/ commercial-oriented desktop PC built with latest, high-performance technology for easier and more enjoyable consumer environment. Regarding the “Stable Technology”, we choose Intel Pentium 4 LGA775 (socket T) processor, Intel 915GV+ICH6 (Prescott/ Cedar Mill) chipset architecture. This combination can run at 800MHz Front Side Bus and provides On-Board VGA and discret VGA support, which provides better performance than other processors.
Features CPU T Socket Type : Intel Socket T T Supports Intel Pentium 4 Prescott 775 / FSB 533/800MHz T Supports Intel Celeron Prescott 775 / FSB 533MHz T Pentium 4 2.66GHz ~3.8GHz speed T Celeron D 2.53GHz ~ 3.2GHz T L2 Cache varies with CPU from 1MB to 2MB Chipset T Northbridge: Intel 915GV T Southbridge: ICH6 Memory T Socket Type : DDR2 , 1.
Audio T Controller: Intel ICH6 T Codec : Realtek ALC880H T Connector support Lin in/ Lin out, Microphone In (front)(Default) T Headphone Out (front)(Default), Headphone In (rear), T When earphone is plugged in the front access audio jack, speaker-out will mute automatically. T 5.1 Channel Audio Support T Reserved disable function on BIOS side. Default is enabled.
System LED Definition System S State S1 (Idle) S3 (Suspend to RAM) S4 (Suspend to Disk) S5 (Shut Down) Wake-Up devices supported with default setting T Power Button : Enabled T PS/2 Keyboard : Enabled T USB Keyboard : Enabled T RTC : Disabled T LAN : Disabled T Modem (Ring) : Disabled T Power Button : Enabled T PS/2 Keyboard : Enabled T USB Keyboard : Enabled T LAN : Disabled T Modem (Ring) : Disabled T Power Button : Enabled T PS/2 Keyboard : Enabled T USB Keyboard : Disabled
On-Board Connector T T Chapter 1 Rear I/O Connectors T 1 PS/2 Keyboard Port, 1 PS/2 Mouse Port T 1 Parallel Port, 1 Serial Port T 1 VGA Port T 1 10/100/1000 LAN Port T 4 USB Ports T 1 Line-in/Line-out/Mic-in port On-Board Connectos T 1 CPU Socket T 4 Memory Slots T 1 PCI Express x16 Slot T 3 PCI Slots T 1 FDD Slot T 1 PATA IDE Slots T 4 SATA IDE Slots T 1 2*5 pin USB pin connector T 1 serial port pin connector (2nd serial port) T 1 Aux-In 4pin connector (CD-ROM Audio Input)
Block Diagram DEVICE IDSEL PCI1 17 C/D/E/F PREQ-0 REQ# PGNT-0 PCI2 18 D/E/F/G PREQ-1 PGNT-1 F/E/H/G PREQ-2 INT# GNT# PCI3 19 1394 20 D PREQ-3 PGNT-3 LAN 21 E PREQ-4 PGNT-4 PCB : 244 x 244 mm ; 4 layers INTEL P4 Processor PSC, Tejas LGA 775 pin PGNT-2 BW : 4.1GB/s @ FSB : 533MHz & Freq : 133MHz BW : 6.4GB/s @ FSB : 800MHz & Freq : 200MHz SIZE : Min 128MB (ONE 256Mb X 16 Single-Sided DEVICES) SIZE : Max 4GB (Four 512Mb X 8 Double-Sided DEVICES) BW : 8.
MainBoard Placement Chapter 1 7
Label Item 8 Component 1 CPU Socket LGA775 socket for Pentium 4 CPUs 2 CPUFAN1 CPU cooling fan connector 3 SYS_FAN System fan connector 4 DIMM1~4 240-pin DDR2 SDRAM slots 5 ATX1 Standard 24-pin ATX power connector 6 FDD Floppy diskette drive connector 7 IDE1 Primary IDE channel 8 CLR_CMOS Clear CMOS jumper 9 SATA1~4 Serial ATA connectors 10 F_PANEL1 Panel connector for case switches and LEDs 11 COM2 Onboard serial port header 12 F_USB1~2 Front Panel USB headers 13 BI
Aspire T680 Front Panel . Description Description No. Description No. No. 2 Description 1 Optical drive Floppy drive 3 Power button 4 Speaker or headphone jack 5 Microphone jack 6 USB ports NOTE: The specifications above are for reference only. The exact configuration of your PC depends on the model purchased.
AcerPower FG Front Panel No. 10 Description 1 Power-Button 2 USB Ports 3 Microphone-in out ( Front ) 4 Speaker-out/Line-out Port 5 CD Reject-Button 6 IR Receriver 7 Optical drive Door 8 3.
Rear Panel No. Chapter 1 Description 1 6 audio jacks (7.
System Peripherals The Aspire T670 and AcerPower FE computer consist of the system itself, and system peripherals, like a mouse, keyboard 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.
Speakers Note: For systems bundled with speakers, before powering on the system, connect the speaker cable to the audio out (external speaker) port on the back panel of the system. For more detailed information about the speakers, please refer to the included operating instructions. NOTE: speakers are optional and the appearance might be different depending on the actual product.
Acer eRecovery Acer eRecovery is a tool to quickly backup and restore the system. Users can create and save a backup of the current system configuration to hard drive, CD, or DVD. Acer eRecovery consists of the following functions: 1. Create backup 2. Restore from backup 3. Create factory default image CD 4. Re-install bundled software without CD 5. Change Acer eRecovery password Create backup Users can create and save backup images to hard drive, CD, or DVD. 1. Boot to Windows XP 2.
Re-install bundled software without CD Acer eRecovery stores pre-loaded software internally for easy driver and application re-installation. 1. Boot to Windows XP. 2. Press + to open the Acer eRecovery utility. 3. Enter the password to proceed. The default password is six zeros. 4. In the Acer eRecovery window, select Recovery actions and click Next. 5. In the Recovery settings window, select Reinstall applications/drivers and click Next. 6.
Acer disc-to-disc recovery Restore without a Recovery CD This recovery process helps you restore the C: drive with the original software content that is installed when you purchase your notebook. Follow the steps below to rebuild your C: drive. (Your C: drive will be reformatted and all data will be erased.) It is important to back up all data files before you use this option. 1. Restart the system. 2. While the Acer logo is showing, press + at the same time to enter the recovery process. 3.
Hardware Specifications and Configurations System Board Major Chip Item Specification System Core Logic Northbridge : Intel 915GV Southbridge : Intel ICH6 Super I/O Controller W83627THF LAN Controller ICH6 Memory Controller 915GV E-IDE Controller ICH6 SATA Controller ICH6 RJ45 Controller ICH6 Audio Controller ALC880 VGA Controller 915GV Processor Item Specification Type Intel Pentium 4 processor 775 Land Grid Array(LGA) Slot Socket-T (LGA 775) Speed Depends on CPU, which is local
BIOS Hotkey List Hotkey Function Description Enter BIOS Setup Utility c Press while the system is booting to enter BIOS Setup Utility. System Memory Item Specification Memory Slot Number 4 slots Supported Memory Size per Slot 128 MB ~ 1GB Supported Maximum total Memory Size 4GB Supported Memory Speed 533/400 MHz Supported memory voltage 1.
IDE Interface Item Specification Number 40 pin PATA slot 1 T Device Type Support HDD, CD-ROM, CD-RW, DVD-ROM,Combo,DVD burner T Transfer Rate Support PIO 0/1/2/3/4 T ATA Mode 33/66/100 Number STAT IDE slot 2 Device Type Support T HDD Supports LS-120 Yes Supports bootable CD-ROM Yes Function Control Enable/Disable by BIOS setup Diskette Drive Interface Item Specification Diskette Drive Controller Resident Bus LPC Bus Supported Diskette Drive Formats 1.44MB, 2.
Wake-up Event Specifications Device LAN S1 S3 S4 S5 Enabled Enabled Enabled Enabled Thermal Design Item Description Thermal Design T T Dynamic FAN speed control by hardware monitor CPU Over-temperature (over 120oC) power off protection Power On / Wake-up Event Item Description Power On/ Wake-Up Event T Power Button: S1/S3/S4/S5 T PS/2 Keyboard: S1/S3/S4/S5 T RTC: S1/S5 T LAN: S1/S3/S5 Memory Address Map Address 20 Size Function 0000000 - 009FFFF 640 KB System Memory Onboard DR
I/O Address Map Hex Range Devices 000-01F 020-021 040-043 060-060 061-061 070-071 080-08F 0A0-0A1 0C0-0DF 0F0-0FF 170-177 1F0-1F7 278-27F 2F8-2FF 378-37F 3F0-3F5 3F6-3F6 3F7-3F7 3F8-3FF 0CF8 0CFC 778-77A DMA Controller-1 Interrupt Controller-1 System Timer Keyboard Controller 8742 System Speaker CMOS RAM Address and Real Time Clock DMA Page Register Interrupt Controller-2 DMA Controller-2 Math Co-Processor Secondary IDE Primary IDE Parallel Printer Port 2 Serial Asynchronous Port 2 Parallel Printer Port
DRQ Assignment Map DRQx System Devices Add-On-Card Devices DRQ0 N Reserved DRQ1 N Reserved DRQ2 FDD N DRQ3 N Reserved DRQ4 Cascade N DRQ5 N Reserved DRQ6 N Reserved DRQ7 N Reserved NOTE: N - Not be used Environmental Requirements Item Specifications Temperature Operating +5°C ~ +35°C Non-operating -20 ~ +60°C (Storage package), -10°C~+60°C (un-package) Humidity Operating 15% to 80% RH, non-condensing Non-operating 10% to 90% RH, non-condensing at 40°C Vibration Operating
Jumper Setting Jumper CLR_CMOS Connector Type Header 3*1 Description Clear CMOS Function 1-2 Normal (Default) 2-3 Clear CMOS NOTE: Before clear the CMOS, the AC power of powersupply should be removed BIOS_WP Header 3*1 Flash Protect 1-2: Flash (Default) 2-3: Flash Protect BIOS_TBL Header 3*1 Boot Block 1-2:Boot Block Disable 2-3:Boot Block Enable Chapter 1 23
Connector ATX 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Pin Signal Pin Signal 1 +3.3V 13 +3.3V 2 +3.3V 14 -12V 3 COM 15 COM 4 +5V 16 PS_ON 5 COM 17 COM 6 +5V 18 COM 7 COM 19 COM 8 PWR OK 20 -5V 9 5VSB 21 +5V 10 +12V 22 +5V 11 +12V 23 +5V 12 +3.
CPU FAN Illustration Pin Signal Name 1 Ground 2 Power +12V 3 SENSE 4 PWM F_USB1 Illustration Pin Signal Name Pin Signal Name 1 USB DUAL VCC 2 DSB UDAL VCC 3 USBP4- 4 USBP5- 5 USBP4+ 6 USBP5+ 7 Ground 8 Ground 9 Key 10 USBOC45# F_USB2 Illustration Pin Signal Name Pin Signal Name 1 USB DUAL VCC 2 DSB UDAL VCC 3 USBP4- 4 USBP5- 5 USBP4+ 6 USBP5+ 7 Ground 8 Ground 9 Key 10 USBOC45# CD-IN1 Illustration Chapter 1 Pin Signal Name 1 CD-IN Left 2 Gr
F_PANEL Illustration 26 Pin Signal Description 1 HD LED P Hard Disk LED pull-up (330ohm) to +5V 2 FP PWR/SLP MSG LED pull-up (330ohm) to +5V 3 HD LED N Hard Disk active LED 4 FP PWR/SLP MSG LED pull up (330ohm) to +5V 5 RST SW N Reset Switch low reference pull down (100ohm) to GND 6 PWR SW P Power Switch high reference pull up (10000ohm) to +5V 7 RST SW P Reset Switch high reference pull up (1000ohm) to +5V 8 PWR SW N Power Swtich high reference pull down (100ohm) toGND 9 RSVD
Chapter 2 System Utilities BIOS (Basic Input and Output System) includes a CMOS SETUP utility which allows user to configure required setting or to active certain system features. The CMOS SETUP saves the configuration in the CMOS SRAM of the mainboard. When the power is turned off, the battery on the mainboard supplies the necessary power to the CMOS SRAM. When the power is turned on, pushing the button during the BIOS POST (Power-On Self Test) will take you to the CMOS SETUP screen.
Entering Setup Once enter Award BIOS CMOS Setup Utility, the Main Menu (as figure below) will appear on the screen. Use arrow keys to select among the items and press to accept or enter the sub-menu. CMOS Setup Utility-Copyright © 1985-2004, America Megatrends, Inc.
Product Informatoin CMOS Setup Utility - Copyright © 1985-2004, American Megatrends, Inc. Product Information Product Names Aspire T680/AcerPower FG System S/N Menu Level Main Board ID E915GV System BIOS Version R01-A2 SMBIOS Version 2.3.
Standard CMOS Features CMOS Setup Utility - Copyright © 1985-2004, American Megatrends, Inc. Standard CMOS Features Date [ Mon 08/22/2005] Item Help Time [10:31:24] Menu Level > ATA/IDE Configuration [Enhanced] X Primary IDE Master X Primary IDE Slave X Secondary IDE Master XSecondary IDE Slave XThird IDE Master XThird IDE Slave Drive A [Hard Disk] [Not Detected] [Not Detected] [Not Detected] [CD/DVD ROM] [Not Detected] Sun. to Sat. [1.44M, 3.5 in ] Jan. to Dec.
Parameter Primary/Secondary/Third Master, Slave Description Allows you to configure the hard disk drive connected to the master port of IDE channel. To enter the IDE Master or Slave setup, press [Enter]. The IDE CD-ROM is always automatically detected. Options IDE HDD Auto-Detection Press [Enter] to select this option for automatic device detection. IDE Primary/Secondary Master, Slave IDE Device Setup.
Advanced BIOS Features The following screen shows the Advanced BIOS Features: CMOS Setup Utility - Copyright © 1985-2004, American Megatrends, Inc.
Parameter Description Options This feature allows you to enable the VIRUS warning function for IDE Hard Disk boot sector protection. If this function is enabled and there is someone attempt to write data into this area, BIOS will show a warning message on screen and the alarm will beep.
Boot Device Priority CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, Boot Device Priority Boot Device Priority Item Help First Boot Device [1st FLOPPY DRIVE] Second Boot Device [HDS728080PLA380] Menu Level X Third Boot Device [HL-DT-ST RW/DVD GC] 4th Boot Device [Realtek Boot Agent] KLIJ: Move Enter: Select F9: Default Settings Parameter 1st/2nd/3rd/4th Boot Device 34 +/-/: Value F10:Save ESC: Exit F1: General Help Description Use these four items to select the priority and order
Hard Disk Drives CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, Hard Disk Drives Item Help Hard Disk Drives 1st Drive Menu Level X KLIJ: Move Enter: Select F9: Default Settings Chapter 2 +/-/: Value F10:Save ESC: Exit F1: General Help 35
Removable Devices CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, Removable Drives Removable Drives Item Help 1st Drive [1st FLOPPY DRIVE] 2nd Drive [Generic USB SD Rea] Menu Level X 3rd Drive [Generic USB CF Rea] 4th Drive [Generic USB SM Rea] KLIJ: Move Enter: Select F9: Default Settings 36 +/-/: Value F10:Save ESC: Exit F1: General Help Chapter 2
CD/DVD Drives CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, CD/DVD Drives CD/DVD Drives Item Help 1st Drive [HL-DT-ST RW/DVD GC] Menu Level X KLIJ: Move Enter: Select F9: Default Settings Chapter 2 +/-/: Value F10:Save ESC: Exit F1: General Help 37
Advanced Chipset Features CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, Advanced Chipset Features DRAM Frequency [Auto] Item Help Configure DRAM Timing by S [Enabled] Init Display First [PCIEX/PCI] Menu Level X VGA Share Memory [8MB] Aperture Size Select [256MB] KLIJ: Move Enter: Select F9: Default Settings Parameter +/-/: Value F10:Save ESC: Exit F1: General Help Description DRAM Frequency This item determines frequency of DRAM memory.
Integrated Peripherals CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, Integrated Peripherals USB 2.0 Controller [Enabled] Item Help USB Function [Enabled] Legacy USB Support [Enabled] Menu Level X Onboard AUDIO Function [Enabled] Onboard LAN Function [Enabled] LAN Boot ROM Support [Enabled] Serial Port 1 Address [3F8/IRQ4] Serial Port 2 Address [Disabled] Parallel Port Address [378] Parallel Port Mode [ECP] EPP Version [1.
Parameter Option Enables you to set data transfer protocol for your parallel port.There are four options: SPP (Standard Parallel Port), EPP(Enhanced Parallel Port), ECP(ExtendedCapabilities Port) and ECP+EPP.SPP allows data output only. Port (ECP) and Enhanced Parallel Port (EPP) are bi-Extended Capabilities directional modes, allowing both data input and output. ECP and EPP modes are only supported with EPP and ECP aware peripherals.
Power Management Setup The Power Management menu lets you configure your system to most effectively save energy while operating in a manner consistent with your own style of computer use.
Parameter PWRON After PWR-Fail Description This item enables your computer to automatically Options Former-Sts restart or return to its former operating status after power returns from a power failure. Power On by Ring An input signal on the serial Ring Indicator (RI) line (in Disabled : Disable Power On other words, an incoming call on the modem) awakens by Ring function the system from a soft off state.
Frequency Control CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, Frequency Control Auto Detect DIMM/PCI ClK [Enabled] Item Help Spread Spectrum [Enabled] Menu Level X KLIJ: Move Enter: Select F9: Default Settings Parameter +/-/: Value F10:Save ESC: Exit F1: General Help Description Option Auto Detect DIMM/PCI Clk When this item is enabled, BIOS will disable Enabled the clock signal of free DIMM and PCI slots.
PnP/PCI Configuration CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, PnP/ PCI PCI/VGA Palette Snoop [Disabled] Item Help Menu Level X KLIJ: Move Enter: Select F9: Default Settings +/-/: Value Parallem PCI/VGA Palette Snoop F10:Save ESC: Exit F1: General Help Description Option Disabled - Data read or written by the CPU Disabled is only directed to the PCI VGA device’s Enabled palette registers.
Load Default Settings Selecting the field loads the factory defaults for BIOS and Chipset Features which the system automatically detects. CMOS Setup Utility-Copyright © 1985-2004, America Megatrends, Inc.
PC Health CMOS Setup Utility-Copyright © 1985-2004, American Megatrends, Inc, PC Health Status o o CPU Shutdown Temperature [90 C/194 F] SMART FAN Control CPU Temperature Ambient Temperature CPU FAN Speed SYS FAN Speed Vcore 12V 5.0V 3.3V 1.5V KLIJ: Move Enter: Select F9: Default Settings Item Help Menu Level X [Enabled] o o 53 C/127 F o o 35 C/95 F 981RPM 1125RPM 1.373V 11.951V 5.148V 3.378V 1.
Set Supervisor/User Password When this function is selected, the following message appears at the center of the screen to assist you in creating a password. CMOS Setup Utility-Copyright © 1985-2004, America Megatrends, Inc.
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. CMOS Setup Utility-Copyright © 1985-2004, America Megatrends, Inc.
Exit Without Saving Highlight this item and press to discard any changes that you have made in the Setup Utility and exit the Setup Utility. CMOS Setup Utility-Copyright © 1985-2004, America Megatrends, Inc.
Chapter 3 Machine Disassembly and Replacement This chapter contains step-by-step procedures on how to disassemble the Aspire T680/AcerPower FG desktop computer for maintenance and troubleshooting. 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.
Disassembling the Aspire T680 Opening the Housing This section tells you how to open the housing cover when you need to install additional components inside the system unit. CAUTION: Before you proceed, make sure that you have turned off the system and all peripherals connected to it. Removing the Housing 1. Turn off the system power and steady it. 2. Remove the two screws holding the side panel. 3. Press down the clip to release the left panel. 4.
Removing the Cables from Mainboard 1. Disconnect the SATA cable. 2. Disconnect the Audio cable, two front USB cables (from Right to Left). 3. Disconnect the SATA cable. 4. Disconnect the IDE cables and power cable. 5. Disconnect the SYS fan cable (3pin) and Heatsink cable (4pin). Removing the Cables from Devices 1. Disconnect the two SATA cables from the rear of HDD.
1. Disconnect the IDE cable and power cable from the rear of FDD. 2. Disconnect the IDE cable and power cable from the rear of ODD. Removing the ODD Press the lock following the arrow direction. Then detach ODD from the chassis. Removing the FDD Press the lock following the arrow direction. Then detach the FDD from the chassis. Removing the Card Reader Press the lock following the arrow direction. Then detach the Card Reader from the chassis.
Removing the DIMM 1. Pop up the tabs on both side. 2. Detach the memory out from the slot. Removing the USB Module 1. Remove the one screw. 2. Detach the USB module from the chassis. 3. Disconnect the cables and loosen the two screws to detach the daughter board. Removing the Heatsink and CPU 1. Loosn those fore screws on each corner. 2. Detach the Heatsink from the mainboard. 3. Press down to release the CPU lever. 4. Lift the clip. 5. Lift the cover. 6. Detach the CPU from the socket.
Removing the System FAN 1. Loosen the four screws. 2. Detach the SYS fan from the chassis. Removing the Power Supply 1. Disconnect the power supply cable from mainboard. 2. Loosen the four screws. 3. Detach the power supply from the chassis. Removing the Mainboard 1. Loosen the eight screws from mainboard. 2. Detach the mainboard from chassis.
Chapter 4 Troubleshooting This chapter provides troubleshooting information for the Aspire T680 & AcerPower FG.
Power-On Self-Test (POST) Before the computer can be used, all the components must be tested and initialized, and the operating system must be bootstrapped into memory. This process is know as the power-on Self test(POST), generally under the control of the BIOS. 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.
POST Check Points When POST executes a task, it uses a series of preset numbers called check point to be latched at port 80h, indicating the stages it is currently running. This latch can be read and shown on a debug board. The following table describes the Acer common tasks carried out by POST. A unique check point number represents each task.
Checkpoint Description 12h Use walking 1’s algorithm to check out interface in CMOS circuitry. Also set real-time clock power status, and then check for override. 13h Reserved 14h Program chipset default values into chipset. Chipset default values are MODBINable by OEM customers. 15h Reserved 16h Initial onboard clock generator if Early_Init_Onboard_Generator is defined. See also POST 26h.
Checkpoint Chapter 4 Description 2Ah Reserved 2Bh Invoke Video BIOS 2Ch Reserved 2Dh 1. Initialize double-byte language font (Optional) 2. Put information on screen display, including Award title, CPU type, CPU speed, full screen logo. 2Eh Reserved 2Fh Rederved 30h Reserved 31h Reserved 32h Reserved 33h Reset keyboard if Early_Reset_KB is defined e.g. Winbond 977 series Super I/O chips.
Checkpoint 4Eh Description 1. Program MTRR of M1 CPU 2. Initialize L2 cache for P6 class CPU & program CPU with proper cacheable range. 3. Initialize the APIC for P6 class CPU. 4. On MP platform, adjust the cacheable range to smaller one in case the cacheable ranges between each CPU are not identical.
Checkpoint 6Dh Description 1. Assign resources to all ISA PnP devices. 2. Auto assign ports to onboard COM ports if the corresponding item in Setup is set to “Auto”. 6Eh Reserved 6Fh 1. Initialize floppy controller 2. Set up floppy related fields in 40:hardware 70h Reserved 71h Reserved 72h Reserved 73h Reserved 74h Reserved 75h Detech &install all IDE device: HDD, LS120, ZIP, CDROM... 76h (Optional feature) Enter AWDFLASH.EXE if: - AWDFLASH.EXE is found in floppy drive.
Checkpoint 64 Description 8Bh 1. Invoke all ISA adapter ROMs 2. Invoke all PCI ROMs (except VGA) 8Ch Reserved 8Dh 1. Enable/Disable Parity Check according to CMOS setup. 2. APM Initialization 8Eh Reserved 8Fh Clear noise if IRQs 90h Reserved 91h Reserved 92h Reserved 93h Read HDD boot sector information for Trend Anti-Virus code 94h 1. 2. 3. 4. 5. 6. 7. 8.
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 Sympton List”. 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 66 Action/FRU Floppy Drive(s) Write Protected Hard Disk Drive(s) Write Protected 1. Ensure that the diskette drive is not set to [Write Protected] in the Security Options in BIOS Setup. 2. Load default settings in Setup. IDE Drive 0 Error IDE Drive 1 Error IDE Drive 2 Error IDE Drive 3 Error 1. 2. 3. 4. 5. IRQ Setting Error Expansion ROM Allocation Fail I/O Resource Conflict(s) Memory Resource Conflict(s) 1. Load default settings in Setup. 2.
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 Action/FRU Diskette drive does not work. 1. Ensure the diskette drive is not set to None in the Disk Drives of BIOS Setup. 2. Diskette drive power 3. Diskette drive connection/cable 4. Diskette drive 5. System board Diskette drive read/write error. 1. Diskette. 2. Ensure the diskette drive is not set to Write protect in the Security Options of BIOS Setup. 3. Diskette drive cable. 4. Diskette drive. 5. System board. Diskette drive LED comes on for more than 2 minutes when reading data.
Error Symptom CD/DVD-ROM drive LED flashes for more than 30 seconds before LED shutting off. Action/FRU 1. CD/DVD-ROM may have dirt or foreign material on it. Check with a known good disc. 2. CD/DVD-ROM is not inserted properly. 3. CD/DVD-ROM is damaged. Software asks to reinstall disc. Software displays a reading CD/DVD error. CD/DVD-ROM drive cannot load or eject when the system is turned on and its eject button is pressed and held. 1.
Error Symptom 70 Action/FRU Display problem: - Incorrect colors No high intensity Missing, broken, or incorrect characters Blank monitor(dark) Blank monitor(bright) Distorted image Unreadable monitor Other monitor problems 1. 2. 3. 4. Display changing colors. 1. Monitor signal connection/cable 2. Monitor 3. System board Display problem not listed above (including blank or illegible monitor). 1. “Monitor". 2. Load default settings (if screen is readable). 3.
Error Symptom Action/FRU 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. Make sure that the LPT# or COM# you test is the same as the setting in BIOS Setup. 2. Loop-back. 3. System board. Printing failed. 1. Ensure the printer driver is properly installed. Refer to the printer service manual. 2. Printer. 3. Printer cable. 4. System board.
Chapter 5 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of Aspire T680 / AcerPower FG. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE: Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel (http://aicsl.acer.com.
Exploded Diagram 73 Chapter 5