User manual ACER ACERMATE 920

[. . . ] The two onboard PCI-enhanced IDE interfaces with a zero-wait state and 16. 6 MB per second transfer rate support up to four IDE devices. Onboard I/O interfaces comprise of two UART 16550 serial ports, a parallel port with ECP/EPP feature, and PS/2 keyboard and mouse ports. System Board 1-1 1. 1 · · · · · · · · · · · Major Features A zero-insertion force (ZIF) socket for Intel P54C and P55C, Cyrix M1/M2, or AMD K5/K6 Two DRAM banks composed of four 72-pin SIMM sockets that support 4/8/16/32-MB 60/70ns SIMMs 256-KB or 512-KB write-back pipeline burst second-level cache (manufacturing option) 256-KB boot block mode Flash ROM for system BIOS, VGA BIOS, and PnP ESCD Two PCI-enhanced IDE interfaces that support up to four IDE devices System clock/calendar with 256-byte CMOS RAM Interfaces for CD-audio, fax/voice modem, and WaveTable support Standard 1-MB video DRAM onboard plus two upgrade sockets for up to 2-MB video memory 188-pin connector for PCI/ISA slot board Feature socket for multimedia or Ethernet solution External ports: · · · · PS/2 keyboard and mouse ports Two buffered high-speed serial ports One ECP/EPP high-speed parallel port Video port The system board has the following major features: 1-2 User's Guide 1. 1. 1 System Board Figure 1-1 shows the locations of the system board major components. 1 2 3 4 5 6 7 8 9 10 Battery Tag SRAM Pipeline burst second-level cache Pentium CPU socket CPU voltage regulators SIMM sockets Buzzer Switch 2 (SW2) Video RAM upgrade sockets Video RAM 11 12 13 14 15 16 17 18 19 Video port Parallel port BIOS Serial port 2 Slot board connector Serial port 1 Mouse port Keyboard port USB connector Figure 1-1 System Board Layout System Board 1-3 1. 1. 2 Slot Boards The system board comes with a slot board already installed. The slot board carries the PCI and ISA bus slots for system enhancements and future expansion. The slot board may vary in size and layout depending on your system housing. [. . . ] Locate the video DRAM upgrade sockets labeled U39 and U40 on the system board. The WaveTable does not come with the basic system. The WaveTable daughterboard supports the same external connectors as the audio-I/O board but comes with enhanced audio features. It bundles the Crystal chipsets that work together to produce better sound quality. Figure 1-12 shows the WaveTable daughterboard layout. Microphone Port Line-in Port Line-out Port MIDI/Game Port Figure 1-12 WaveTable Daughterboard 1-22 User's Guide The WaveTable has two connectors, CN5 and CN6, located underside. Match these two connectors with the audio-I/O connector (CN9) and WaveTable connector (CN6) on the system board. Figure 1-13 shows how to install the WaveTable connector. CN6 CN9 Figure 1-13 Installing the WaveTable Daughterboard System Board 1-23 1. 9. 4 Audio-I/O Devices Figure 1-14 shows the various devices that you can connect to the audio-I/O board. Joystick MIDI Adapter Speakers Head phones Stereo Amplifier Synthesizer CD Player Microphone Figure 1-14 Audio I/O External Devices 1-24 User's Guide 1. 10 QuickStart Power Saving Feature The system board supports a special power saving feature called QuickStart mode. QuickStart turns off the hard disk, monitor, keyboard, and mouse once you press the power switch for less than four seconds while the system is on. This feature requires the Power Saving Operation Mode parameter in the BIOS to be set to QuickStart. See section 2. 4 for more information on the setting description. The system board comes with connectors to support the QuickStart feature. The following sections tell how to connect the power switch and LED cables, and enter QuickStart mode. 1. 10. 1 Connecting the Power Switch and LED Cables The Aspire housing comes with a special power and LED cables to connect to the LED board. Follow these steps to connect the power switch and LED cables. Connect the 6-pin power switch connector to JP50 on the LED board, matching the white cable with pin 1. Connect the 3-pin HDD/MSG LED to pins 1-3-5 of JP48, matching the green cable with pin 1. Connect the 3-pin power switch LED cable to pins 2-4-6 of JP48 making sure that the green cable matches pin 2. See Figure 1-15. System Board 1-25 Power HDD/MSG Figure 1-15 Power and HDD/MSG Connector (JP48) Figure 1-16 shows the locations of JP48 and JP50 on the system board and which cables to connect to them. Power LED Cable Power Switch Cable HDD/MSG LED Cable JP50 JP48 Figure 1-16 Connecting the Power Switch and LED Cables 1-26 User's Guide 1. 10. 2 QuickStart Mode Operation At any time while the system is running, enter the QuickStart mode by simply pressing the power switch for less the four seconds. This action causes the system to rest (QuickStart state 1) by turning off the keyboard, mouse, and monitor. After the specified time in the QuickStart State Timer parameter in BIOS, the system sleeps (QuickStart state 2) and turns off the hard disk. Once the system enters QuickStart mode, the hard disk/message LED and keyboard LED go off, while the power and monitor LEDs start blinking. When a message comes, the hard disk/message LED starts blinking orange, then green when the hard disk reads the message. After getting the message, the hard disk and the LED go off again. Press the power switch again for less than four seconds to return to the normal mode. To enter or exit the QuickStart mode, make sure to press the power switch within four seconds. Pressing it for more than four seconds turns off the system. System Board 1-27 1. 11 Installing ISA Cards Both PnP and non-PnP ISA cards require specific IRQs. When installing ISA cards, make sure that the IRQs required by these cards are not previously assigned to PCI devices to avoid resource conflicts. [. . . ] You must know the correct configuration values for your system before you enter Setup, which is why you should write them down when the system is correctly configured. An incorrect configuration is a major cause of power-on error messages, especially for a new system. Check that the jumpers on the system board and any expansion boards are set correctly. If you cannot access a new disk, it may be because your disk is not properly formatted. [. . . ]