Acer Aspire SA85 Technical Information

Aspire SA85AcerPower S285Service Guide

4 Chapter 1 I/O ConnectorT Controller : Super I/O ITE 8705FRear I/O ConnectorT 1 PS/2 Keyboard Port, 1 PS/2 Mouse PortT 1 Parallel Port, 1 Serial Port

Chapter 1 5Mainboard PlacementNo. Label Component1CPU LGA775 socket for Pentium 4 CPU2 CPU Fan CPU cooling fan connector3 DIMM1~DIMM2 Two 184-pin DDR

6 Chapter 115 CD_IN Analog audio input connector16 PCI1~PCI3 32-bit add-on card slots17 AGP Accelerated Graphics Port slot18 ATX12V 4-pin 12V power c

Chapter 1 7Block DiagramDIMM 1, 2MuTIOL@1GSiS964LPCLGA775FSB533AGP 4X/8XVGAPCICPUSiS661FXCONNAGPSLOTAC LINKUSB Port 0, 2USB 2.0PCI Slot 1, 2, 3USB Por

8 Chapter 1Aspire SA85 Front PanelThe computer’s front panel consists of the following:Label Description1 Optical drive2 Floppy disk drive3 Power but

Chapter 1 9Aspire SA85 Rear PanelNo. Description No. Description1 Power cord socket 2 Voltage selector switch3 Fan aperture 4 PS/2 keyboard connector5

10 Chapter 1AcerPower S285 Front PanelLabel Description1 Power-Button2 Speaker-out/Line-out Port3 Microphone-in out ( Front )4 USB Ports5Optical driv

Chapter 1 11AcerPower S285 Rear PanelNo. Description No. Description1 Power cord socket 2 Voltage selector switch3 Fan aperture 4 PS/2 keyboard connec

12 Chapter 1System Peripherals The Aspire S Series computer consist of the system itself, and system peripherals, like a mouse, keyboard and a set of

Chapter 1 13SpeakersFor systems bundled with speakers, before powering on the system, connect the speaker cable to the audioout (external speaker) por

IIRevision HistoryPlease refer to the table below for the updates made on Aspire SA85/AcerPower S285 service guide.Date Chapter Updates

14 Chapter 1Acer eRecoveryAcer eRecovery is a tool to quickly backup and restore the system. Users can create and save a backup of the current system

Chapter 1 157. Follow the instructions on screen to complete the process.Re-install bundled software without CDAcer eRecovery stores pre-loaded softwa

16 Chapter 1Acer disc-to-disc recoveryRestore without a Recovery CDThis recovery process helps you restore the C: drive with the original software con

Chapter 1 17Hardware Specifications and ConfigurationsNOTE: The BIOS can be overwritten/upgraded by using the flash utility.Main Board Major ChipsProc

18 Chapter 1System MemoryMemory Combinations Slot Memory Module Total MemorySlot 1 128, 256, 512MB, 1GB 128MB~ 1GBSlot 2 128, 256, 512MB, 1GB 128MB~ 1

Chapter 1 19Video InterfaceItem SpecificationVideo controller SiS661FXVideo controller resident bus AGP busVideo Interface 4X/8X AGP Slot 1Video int

20 Chapter 1Floppy disk drive InterfaceItem SpecificationFloppy disk drive controller ITE8705FFloppy disk drive controller resident busISA busSupport

Chapter 1 21T Devices wake up from S3 should be less than 5 secondsT Devices wak up from S5 should be less than 10 secondsEnvironmental RequirementsIt

22 Chapter 1Power Management Function (ACPI support function)Device Standby ModeT Independent power management timer for hard disk drive devices (0-15

Chapter 2 23Most systems are already configured by the manufacturer or the dealer. There is no need to run Setup when starting the computer unless you

IIICopyrightCopyright © 2005 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, sto

24 Chapter 2Entering SetupPower on the computer and the system will start POST (Power On Self Test)process. When the message of “Press DEL to enter SE

Chapter 2 25The items in the main menu are explained below:T Product Information To introduce the Product Name,System P/N and MainBoard

26 Chapter 2Product InformationThe screen below appears if you select Product Information from the main menu:The Product Information menu contains gen

Chapter 2 27Standard CMOS FeaturesSelect Standard CMOS Features from the main menu to configure some basic parameters in your system.The following scr

28 Chapter 2Drive A Allows you to configure your floppy drive A. None360 KB, 5.25-inch1.2 MB, 5.25-inch720 KB, 3.5-inch1.44M, 3.5 - inch2.88 MB, 3.5-i

Chapter 2 29Advanced BIOS FeaturesThe following screen shows the Advanced BIOS Features:The following table describes the parameters found in this men

30 Chapter 2Swap Floppy Drive Setting to Enabled will swap floppy drive a: and b:.Enabled DisabledBoot Up Floppy Seek Setting to Enabled will make BIO

Chapter 2 31CPU Features Parameter DescriptionThermal Management (Thermal Monitor 1)This item displays CPU’s temperature and enables you to set a safe

32 Chapter 2Hard Disk Boot PriorityItem Help2. Bootable Add-in CardsMenu Level X Phoenix - AwardBIOS CMOS Setup UtilityeHar

Chapter 2 33Advanced Chipset FeaturesThe advanced chipset features setup option is used to change the values of the chipset registers. These registers

IVConventionsThe following conventions are used in this manual: SCREEN MESSAGESDenotes actual messages that appear on screen.NOTE Gives bits and piec

34 Chapter 2DRAM Clock/Timing ControlParameter DescriptionCurrent CPU Frequency Detect the current CPU FrequencyCurrent DRAM Frequency Detect the curr

Chapter 2 35AGP & P2P Bridge ControlParameter Description OptionAGP Aperture Size To set AGP Aperture size.(The size of the Memory which shared by

36 Chapter 2Onchip AGP ControlParameter Description OptionVGA Share Memory Size Select VGA Share Memory Size 16MB/32MB/64MB/128MB VGA Share Memory Si

Chapter 2 37Integrated PeripheralsParameter Description OptionSiS OnChip IDE Device Use the arrow keys to select your options; press <Enter> ke

38 Chapter 2SIS OnChip IDE DevicePress [Enter] to enter the sub-menu and the following screen appears:SIS OnChip IDE DeviceParameter Description Optio

Chapter 2 39SIS OnChip PCI DevicePress [Enter] to enter the sub-menu and the following screen appears:SIS OnChip PCI DeviceParameter Description Optio

40 Chapter 2Onboard Super IO DeviceOnboard SuperIO DeviceParameter Description OptionOnboard FDC Controller Enables or disables the onboard floppy dis

Chapter 2 41Power Management SetupThe Power Management menu lets you configure your system to most effectively save energy while operating in a manner

42 Chapter 2Suspend Mode The CPU clock will be stopped and the video signal will be suspended if no Power Management events occur for a specified leng

Chapter 2 43PM Wake Up Events Parameter Description OptionsIRQ [3-7, 9-15], NMI This option is used to enable or disable IRQ[3-7,9-15],NMI.DisabledEna

VPrefaceBefore using this information and the product it supports, please read the following general information.1. This Service Guide provides you wi

44 Chapter 2Resume by Alarm When set to Enabled, the following three fields become available: Month Alarm, Day of Month Alarm, and Time Alarm Upon arr

Chapter 2 45PnP/ PCI Configurations The following table describes the parameters found in this menu. Settings in boldface are the default and sugges

46 Chapter 2IRQ Resources IRQ-3 assigned to [ PCI Device ] Item Help IRQ-4 assigned to [ PCI Device ] Menu Level X IRQ-5 assigned to [ PCI Device

Chapter 2 47PC Health StatusThe following table describes the parameters found in this menu: Parameter Description OptionsSmart FAN Control Enable sma

48 Chapter 2Frequency ControlThe following table describes the parameters found in this menu. Settings in boldface are the default and suggested setti

Chapter 2 49Load Default SettingsThis option opens a dialog box that lets you install defaults for all appropriate items in the Setup Utility.Press &l

50 Chapter 2Set Supervisor/User PasswordWhen this function is selected, the following message appears at the center of the screen to assist you in cre

Chapter 2 51Save & Exit SetupHighlight this item and press <Enter> to save the changes that you have made in the Setup Utility and exit the

52 Chapter 2Exit Without SavingHighlight this item and press <Enter> to discard any changes that you have made in the Setup Utility and exit the

Chapter 3 53This chapter will guide you how to disassemble and reassemble Aspire SA85/AcerPower S285.To disassemble the computer, you need the followi

1Chapter1 System Specifications... 1Features . . . . . . . . . . . . . . . . . . . . . . . . . . . .

54 Chapter 3General InformationBefore You BeginBefore proceeding with the disassenbly procedure, make sure that you do the following:1. Turn off the p

Chapter 3 55Standard Disassembly ProcedureThis section tells you how to disassemble the system when you need to perform system service. The difference

56 Chapter 32. Disconnect the USB4 from the mainboard. 3. Disconnect the audio cable from the mainboard.4. Disconnect the two cables from mainboard. 5

57Disconnect the Cables from Device1. Disconnect the Power cable and IDE cable from the ODD.2. Disconnect the two cables from the rear of FDD.3. Disco

583. Remove the two screws on both sides.4. Disconnect the cables from the daughter board.5. Detach the daughter board from the bracket.Removing the D

59Removing the Mainboard1. Loosen these scerws (total screws are 8) from the mainboard.2. Detach the mainboard from the chassis.

Chapter 4 60Please refer to generic troubleshooting guide for trougleshooting information relating to following topics:T Power-On Self-Test (POST)T PO

Chapter 5 61Jumper SettingThis section explains how to set jumpers for correct configuration of the mainboard.Setting JumperUse the motherboard jumper

62 Chapter 5Checking JumperJumper Type Description Setting(Default) IllustrationCLR_CMOS 3-pin CLEAR CMOS 1-2 : Clear2-3 : NormalBefore clearing the

Chapter 5 63Checking ConnectorCPU_FAN: CPU Cooling Fan ConnectorPin Signal Name Function1 GND System Ground2 +12V Power +12V3 Sense Sensor4 Control F

Chapter 1 1OverviewThe model incorporates the SiS661FX Northbridge (NB) and SiS964L Southbridge(SB) chipsets. The combination can run at 533/800 MHz F

64 Chapter 5Front Panel HeaderThe front panel header (PANEL1) provides a standard set of switch and LED connectors commonly found on ATX or Micro ATX

Chapter 5 65PSKBM1COM1PS/2 Keyboard PS/2 Mouse 1 KBDATA 11 MDATA2NC 12NC3 Ground 13 Ground4VCC 14VCC5 KBCLK 15 MCLK6NC 16NCIllustration Pin Signal Nam

66 Chapter 5COM2LPT Illustration Pin Signal Name Pin Signal Name1 DCDB 2 RxD3TxD 4DTRB5 Ground 6 DSRB7 RTSB 8 CTSB 9 RI 10 KEYPin Signal Name Pin Sign

Chapter 5 67USBLAN1 Pin Signal Name Pin Signal Name U1 VCC G7 HOLE_LANU2 -DATA0 G8 HOLE_LANU3 +DATA0 L1 TX+U4 GND L2 TX-U5 VCC L3 RX+U6 -DATA0 L4 NCU

68 Chapter 5USBPin Signal Name Pin Signal Name1VCC 9VP2-DATA0 10VG3+DATA0 11TPB-4GND 12TPB+5VCC 13TPA-6-DATA1 14TPA+7+DATA18GNDG1 HOLE_USBG2 HOLE_USBG

Chapter 5 69FDDPin Signal Name Pin Signal Name1 Ground 2 DRVDEN0 3 Ground 4 HDL-5 Keypin 6 DS3-7 Ground 8 INDEX- 9 Ground 10 MTR0-11 Ground 12 DS0-13

70 Chapter 5IDE1 & IDE2 Pin Signal Name Pin Signal Name1 RESET- 2 Ground3DD7 4DD85DD6 6DD97DD5 8DD109 DD4 10 DD1111 DD3 12 DD1213 DD2 14 DD1315 DD

Chapter 5 71CPU_FANCD_IN USB3/USB4Illustration Pin Signal Name1Ground2 +12V 3 Sense4ControlIllustration Pin Signal Name1CD_L2GND3GND4CD_RIllustration

72 Chapter 5PANEL1AUDIO1 Rear I/O Panel Connectors Illustration Pin Signal Name Pin Signal Name1 HD_LED_P 2 PWR_SLP3 HD_LED_N 4 PWR_SLP5 RST_SW_N 6 PW

Chapter 6 73This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of Aspire SA85 / AcerPower S285. Refer to this c

2 Chapter 1Features ProcessorT Socket Type : Intel® Socket TT Processor Type : Intel® Smithfield Pentium D / Intel® Pentium 4 Prescott 775 FSB 533/800

74 Chapter 6Exploded Diagram

Chapter 6 75Parts PART NAME DESCRIPTION P/NBOARD USB/ AUDIO DAUGHTER BOARDUSB BOARD 55.S26VF.001READER9-IN-1 CARD READER MODULE 3.5 IN. KYEID03 PZ.009

76 Chapter 6I/O SHIELDI/O SHIELD ASSY PZ.P2308.001RETENTION MODULERETENTION MODULE 42.P05VF.002FOOT STANDRUBBER FOOTRUBBER FOOT 47.V02VF.701CD-ROM DRI

Chapter 6 77Smithfidle Pentium D 820 (2.8G 2x1M 800FSB)HH80551PG0722M KC.D0001.820670, P4 3.8GHz, 800MHz FSB, 2MB L2 CacheJM80547PG1122M KC.D0001.6706

78 Chapter 6VGA CARD SP ATI9250 RC26 128MB 64BIT(MEZZA) TVO+D+V NTSC W/ATX BTK SAPPHIREVGA CARD SP ATI9250 RC26 128MB 64BIT(MEZZA) TVO+D+V NTSC W/ATX

Chapter 6 79PS/2 KEYBOARD, KBP2971, T.CHINESE VER., 104KEYSPS/2 KEYBOARD, KBP2971, T.CHINESE VER., 104KEYSKB.KBP03.067PS/2 KEYBOARD, KBP2971,BLACK, S.

80 Chapter 6Seagate Alpine 200G 7200RPM SATA 1.5G HDD / 8MBST3200822AS KH.20001.003Seagate Tonka1 200G 7200RPM SATA 1.5G HDD / 8MB (RoHS) ST3200826AS

Chapter 6 81MB E661FXM(WI Acer logo)+Rear I/O Shielding + Retention ModuleMB Kit MB.P3007.004MEMORYMEMORY DDR 400 256MB PQI MDAD-302HAMDAD-302HA KN.25

82 Chapter 6SPEAKER 2.0 USB M-1118B ACER LOGO2.0 SPEAKER, USB, M-1118B, ACER LOGO SP.11805.001SPEAKER 2.0 USB M-1118B ACER LOGO W/STK LABEL2.0 SPEAKER

Chapter 1 3IDET Slot Type: 40 pin IDE slotT Slot Quantity: 2 x ATA 133 T Transfer rate support: T PIO mode: 0/1/2/3/4T ATA mode: 33/66/100 port suppor