User manual ACER ASPIRE G3220

[. . . ] If a wrist strap is not available, maintain contact with the system unit throughout any procedure requiring ESD protection. 1. 3 Pre-installation Instructions Always observe the following before you install a system component: 1. Turn off the system power and all the peripherals connected to the unit before opening it. Open the system according to the instructions in the housing installation manual. Follow the ESD precautions in section 1. 2 before handling a system component. [. . . ] See the following sections for specific instructions on the component you wish to install. Do not attempt the procedures described in the following sections unless you are a qualified service technician. 1-4 User's Guide 1. 4 1. 4. 1 Installing a CPU Installation Procedures Observe the ESD precautions when installing components. See section 1. 2. The system board features a zero-insertion force (ZIF) socket for easy CPU installation. Insert the CPU, making sure that pin 1 (indicated by a notched corner) of the CPU connects to hole 1 of the socket. Pull down the socket lever to lock the CPU into the socket. Step 1 Step 2 Hole for Pin 1 Step 3 Notched corner Figure 1-2 Installing a CPU System Board 1-5 1. 4. 2 Installing an OverDriveTM CPU The OverDrive CPU comes with a heatsink already mounted. To maintain proper airflow around the CPU and heatsink, follow the required clearances in Table 1-1. Table 1-1 Clearances for OverDrive CPU and Heatsink Location Minimum Clearance 0. 4 inches 0. 2 inches Above the heatsink Sides of the CPU (at least 3 of 4) Follow these steps to install an OverDrive CPU: 1. Locate the CPU socket and pull up the socket lever. Remove the old CPU carefully from the socket and place it in an antistatic package. Take the upgrade CPU out of its antistatic package. Carefully insert the CPU into the socket such that pin 1 (indicated by a notched corner) of the CPU connects to hole 1 of the socket. Notched Corner Figure 1-3 5. Installing an OverDrive CPU Push down the socket lever to lock the CPU into the socket. 1-6 User's Guide See section 1. 11 for the post-installation instructions. 1. 5 Jumpers and Connectors Figure 1-4 shows the jumper and connector locations. Figure 1-4 Jumper and Connector Locations The shaded pin indicates pin 1. System Board 1-7 The following tables list the jumper settings and their corresponding functions: Table 1-2 Jumper JP2 System Board Jumper Settings Setting 1-2 * 2-3 Function For BIOS ROM 28F001 Enable Boot Block Programming Normal operation Flash ROM (28F001) EPROM Block Flash EEPROM Enable Acer BIOS logo Enable OEM BIOS logo Enable MPEG function Disable MPEG function Intel (1+4) burst sequence Linear burst sequence Enable SMM switch Enable Reset switch Assign one regulator for P54C CPU Assign two regulators for P55C CPU Enable P54C shutdown Set P55C I/O voltage to 3. 3V Enable IDE and FDD LED Enable IDE LED only Enable onboard VGA Disable onboard VGA JP3 1-2 2-3 OPEN * 1-2 2-3 * 1-2 * 2-3 1-2 * 2-3 1-2 * 2-3 SHORT OPEN 1-2 * 2-3 1-2 2-3 1-2 * 2-3 JP6 JP7 JP8, JP9 JP11 JP13 JP14 JP16 JP19 * Default setting 1-8 User's Guide Table 1-3 CPU Core Voltage Select JP24 OPEN 2-3 OPEN 3-4 1-2, 3-4 JP25 1-2 or 2-3 3-4 Vcore 3. 52V 3. 3V 2. 9V 2. 7V 2. 5V Table 1-4 Bus Frequency Select SW1 1 2 ON OFF ON Bus Frequency 50 MHz 60 MHz 66 MHz ON ON OFF Table 1-5 CPU Core/Clock Ratio Select SW1 3 ON OFF ON OFF 4 ON OFF OFF ON P54C 5/2 3/2 2/1 3/1 M1 1/1 3/1 2/1 4/1 K5 3/2 1/1 Table 1-6 SB1/Password Function Select SW1 5 6 Bypass password Setting ON Disable SB 1 Sound Blaster System Board 1-9 Enable SB Check password OFF 1-10 User's Guide Table 1-7 lists the onboard connectors. Table 1-7 Onboard Connectors Function LSFM interface (optional) Fax/modem-in CD audio in Power connector Standby control Wavetable connector USB/LAN connector Keyboard connector Mouse connector Audio I/O connector Diskette drive connector IDE2 connector IDE1 connector COM1 port COM2 port IrDA connector Fan power connector Parallel port VGA connector Internal line-in connector ATI Media channel (AMC) connector FM-Towns connector (optional) Power LED connector Power on switch IDE LED connector (for OEM) IDE LED connector Connector CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN8 CN9 CN10 CN11 CN12 CN13 CN14 CN15 CN16 CN17 CN18 CN19 CN20 CN21 CN23 CN25 JP10 JP15 JP17 System Board 1-11 1. 6 Installing Memory The system memory is expandable to 128 MB by adding single in-line memory modules (SIMMs). See Figure 1-1 for the location of the SIMM sockets. Section 1. 6. 1 tells how to install SIMMs. The board may also come with or without a standard connector. This connector allows you to install a Wavetable card. 1-18 User's Guide 1. 10 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. Follow these steps when installing ISA cards: 1. Remove all PnP cards installed in the system, if any. Enter BIOS utility and set the Reset Resource Assignment parameter to Yes to clear the resource data assigned to the PnP devices. Use Windows 95 or ICU to manually assign the appropriate IRQs to the cards. This ensures that BIOS will not use the resources assigned to the non-PnP ISA cards. 3. 5. BIOS detects and configures only PnP cards. 6. Check and connect the keyboard to the system unit. Error Message Bad CMOS Battery CMOS Checksum Error Diskette Drive Controller Error Diskette Drive Error DRAM Configuration Error Equipment Configuration Error Hard Disk Controller Error Hard Disk 0 Error Hard Disk 1 Error Hard Disk 0 Extended Type Error Hard Disk 1 Extended Type Error I/O Parity Error Keyboard Error or No Keyboard Connected System Board 1-21 Table 1-11 System Error Messages (continued) Corrective Action Contact your dealer. Press or . Error Message Keyboard Interface Error Keyboard Locked Memory Error Memory Size Mismatch Serial 1 Conflict Serial 2 Conflict Parallel Port Conflict Pointing Device Error Pointing Device Interface Error Press F1 key to continue or Ctrl-Alt-Esc for Setup Press Esc to turn off NMI, any key to reboot Protected Mode Test Fail RAM BIOS Error Real Time Clock Error Shadow RAM Fail System Memory Address Error Press to disregard NMI error. [. . . ] Press or . Error Message Keyboard Interface Error Keyboard Locked Memory Error Memory Size Mismatch Serial 1 Conflict Serial 2 Conflict Parallel Port Conflict Pointing Device Error Pointing Device Interface Error Press F1 key to continue or Ctrl-Alt-Esc for Setup Press Esc to turn off NMI, any key to reboot Protected Mode Test Fail RAM BIOS Error Real Time Clock Error Shadow RAM Fail System Memory Address Error Press to disregard NMI error. Check SIMMs on system board or contact your dealer. 1. 12. 3 Correcting Error Conditions As a general rule, the "Press F1 to continue" error message is caused by a configuration problem which can be easily corrected. An equipment malfunction is more likely to cause a fatal error, i. e. , an error that causes complete system failure. 1-22 User's Guide Here are some corrective measures for error conditions: 1. You must know the correct configuration values for your system before you enter Setup, which is why you should write these values down when the system is correctly configured. [. . . ]