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Acer V50LA, Руководство пользователя

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System Board

1-9

The multifunction connector CN14 accommodates the front panel
connectors for speaker, LEDs, keylock, reset, and turbo.  Figure 1-5
shows the CN14 pin assignments for each of the front panel
connectors.

Figure 1-5

20-Pin Multifunction Connector  (CN14)

The connector CNX1 functions as SMM switch, as reset switch, or
both, depending on the settings.  Figure 1-6 shows the CNX1 settings
with their corresponding functions.

Figure 1-6

SMM/Reset Connector  (CNX1)

SMM Switch  (1-2)

Reset Switch  (3-4)

SMM Switch  (1-2)
Reset Switch  (3-4)

Front Panel
Reset Switch

Содержание V50LA

Страница 1: ... interfaces A standard 1 MB video DRAM comes onboard and is upgradable up to 2 MB Two DRAM banks composed of four 72 pin sockets come with the board to support single and double density SIMMs for a maximum system memory of 128 MB The SIMM sockets accommodate both the standard page mode and extended data output EDO type SIMMs The board supports a standard 256 KB asynchronous or an optional 256 KB p...

Страница 2: ...lash ROM for system and VGA BIOS Two PCI enhanced IDE interfaces that support up to four IDE devices System clock calendar with 128 bytes 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 port...

Страница 3: ... 4 Fan connector 5 SIMM sockets 6 321 pin ZIF CPU socket 7 3 3V battery 8 Video memory upgrade sockets 9 Onboard video memory 10 Video port 11 Parallel port 12 COM2 13 Slot board connector 14 COM1 15 PS 2 mouse connector 16 PS 2 keyboard connector 17 RJ 45 phone jack 18 Feature socket for multimedia or Ethernet solution Figure 1 1 System Board Layout ...

Страница 4: ...es 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 Figures 1 2 and 1 3 show the two kinds of slot boards Figure 1 2 2 PCI 3 ISA Slot Board for desktop systems Figure 1 3 3 PCI 5 ISA Slot Board for mini tower systems ...

Страница 5: ...mper and Connector Locations Figure 1 4 shows the jumper and connector locations on the system board Figure 1 4 System Board Jumper and Connector Locations Jumpers are prefixed JP Connectors are prefixed CN The blackened pin of a jumper represents pin 1 ...

Страница 6: ... Boot Block Feature1 JP3 1 2 2 3 For Intel 28F001 only Enable Flash ROM boot block feature Disable Flash ROM boot block feature BIOS ROM Type JP5 1 2 2 3 3 4 EPROM Flash ROM Intel 28F010 28F001 Flash ROM SST 29EE010 CPU Core Host Bus Frequency JP4 1 4 2 5 3 6 75 50 MHz 90 60 120 60 150 60 MHz 100 66 133 66 167 66 MHz Second level Cache JP6 JP7 1 2 1 2 256 KB All other setting combinations are rese...

Страница 7: ...9 1 2 1 2 1 2 2 3 2 3 1 2 2 3 2 3 Intel P54C Intel P55C M1 and K5 3 2 3 1 3 2 2 1 3 1 2 1 2 1 1 1 3 1 5 2 CPU Voltage JP21 1 2 2 3 3 3825V for VR and standard CPU type 3 5250V for VRE CPU type LED Support JP23 1 2 2 3 For IDE and diskette drives For IDE drive only The jumpers JP10 JP15 and JP17 are always closed if there is no voltage regulator module VRM present Default setting ...

Страница 8: ... modem connector CN4 Video feature connector CN5 WaveTable connector CN6 CD audio line in connector CN7 Feature connector for multimedia or Ethernet solution CN8 IDE channel 1 CN9 IDE channel 2 CN10 Diskette drive connector CN11 Power connector CN12 Standby power connector CN14 Multifunction connector CN15 IrDA connector CN16 Hard disk drive LED connector CN17 Hard disk drive LED connector generic...

Страница 9: ... for each of the front panel connectors Figure 1 5 20 Pin Multifunction Connector CN14 The connector CNX1 functions as SMM switch as reset switch or both depending on the settings Figure 1 6 shows the CNX1 settings with their corresponding functions Figure 1 6 SMM Reset Connector CNX1 SMM Switch 1 2 Reset Switch 3 4 SMM Switch 1 2 Reset Switch 3 4 Front Panel Reset Switch ...

Страница 10: ...ent 1 Do not remove a component from its antistatic packaging until you are ready to install it 2 Wear a wrist grounding strap before handling electronic components Wrist grounding straps are available at most electronic component stores Do not attempt the procedures described in the following sections unless you are a qualified technician ...

Страница 11: ...MB 8 MB 16 MB 8 MB 8 MB 16 MB 4 MB 4 MB 4 MB 4 MB 16 MB 4 MB 4 MB 8 MB 8 MB 24 MB 8 MB 8 MB 4 MB 4 MB 24 MB 8 MB 8 MB 8 MB 8 MB 32 MB 16 MB 16 MB 32 MB 16 MB 16 MB 32 MB 4 MB 4 MB 16 MB 16 MB 40 MB 16 MB 16 MB 4 MB 4 MB 40 MB 8 MB 8 MB 16 MB 16 MB 48 MB 16 MB 16 MB 8 MB 8 MB 48 MB 16 MB 16 MB 16 MB 16 MB 64 MB 32 MB 32 MB 64 MB 32 MB 32 MB 64 MB 4 MB 4 MB 32 MB 32 MB 72 MB 32 MB 32 MB 4 MB 4 MB 72...

Страница 12: ...g down into the socket labeled SIMM 1 Be careful when inserting SIMMs to avoid damaging the SIMM or the socket 2 Gently press the SIMM up until the pegs of the socket fit into the holes on the SIMM and the holding clips lock the SIMM into position The SIMM should be at a 90 angle when installed Figure 1 7 Installing a SIMM Hole Peg Clip ...

Страница 13: ...ps to remove a SIMM 1 Press the holding clips on both sides of the SIMM outward to release it Figure 1 8 Removing a SIMM 2 Move the SIMM to a 45 angle 3 Pull the SIMM out of the socket Always remove SIMMs from the socket labeled SIMM 4 then SIMM 3 and so on ...

Страница 14: ...guration 3 Press Atwice to exit and reboot the system The system boots with the new memory configuration 1 5 IDE Hard Disk Support The system board supports four IDE hard disks or any other IDE devices through the two onboard PCI IDE interfaces See Figure 1 1 for the location Follow the instructions in the housing installation manual on how to install a hard disk in the system Connect the cables a...

Страница 15: ... the socket Make sure that the notched corner of the CPU matches the pin 1 indicator on the socket Be careful not to bend any pins 3 Pull down the socket lever Figure 1 9 Installing a Pentium CPU 4 Set jumpers JP4 JP16 and JP19 according to the CPU speed JP8 for the correct CPU type and JP21 for the appropriate CPU voltage Refer to Table 1 1 for the jumper settings STEP 1 STEP 2 STEP 3 Notched Cor...

Страница 16: ...2 MB Follow these steps to upgrade the video memory 1 Locate the video DRAM upgrade sockets labeled U5 and U6 on the system board See Figure 1 1 2 Gently insert a 514260ASL 256K x 16 70ns SOJ chip into each of the upgrade sockets Make sure that the pin 1 indicator on the chip matches the notched corner of the socket Figure 1 10 Installing a Video Memory Chip Pin 1 Indicator Notched Corner ...

Страница 17: ...d system It has four connectors onboard to accommodate the audio I O board WaveTable CD ROM and fax voice modem Figure 1 11 shows the four audio connectors on the system board 1 Fax voice modem connector 2 Audio I O board connector 3 WaveTable connector 4 CD audio connector Figure 1 11 Audio Connectors Onboard ...

Страница 18: ...and MIDI game port These ports accommodate the external audio devices The system board supports two types of audio I O board Figures 1 12 and 1 13 show the different audio I O boards that may come with the system Figure 1 12 Audio I O Board Without Internal Connectors Microphone Port Line in Port Line out Port MIDI Game Port ...

Страница 19: ... as the external audio ports you can utilize all the sound features supported by the system board Since external speakers microphone and other audio devices give better sound quality the external audio ports take higher priority than the internal connectors When you attach external audio devices to the ports the internal audio devices are automatically disabled Microphone Port Line in Port Line ou...

Страница 20: ...io I O Devices Figure 1 14 shows the various devices that you can connect to the audio I O board Figure 1 14 Audio I O External Devices Microphone Synthesizer CD Player Stereo Amplifier Head phones Speakers MIDI Adapter Joystick ...

Страница 21: ...ror Messages Software error messages are returned by your operating system or application These messages typically occur after you boot the operating system or when you run your applications If you receive this type of message consult your application or operating system manual for help 1 9 2 System Error Messages A system error message indicates a problem with the computer itself A message of thi...

Страница 22: ...tive If not replace the diskette drive Diskette Drive A Type Mismatch Run Setup and select the proper drive type Diskette Drive B Type Mismatch Run Setup and select the proper drive type Equipment Configuration Error Modify the memory configuration to agree with one of the options in Table 1 3 Hard disk Controller Error Run Setup Hard disk 0 Error Check all cable connections Replace hard disk Hard...

Страница 23: ...r message reappears ask for technical assistance Onboard Serial Port 1 Conflict Run Setup and disable the port Onboard Serial Port 2 Conflict Run Setup and disable the port Onboard Parallel Port Conflict Run Setup and disable the port Pointing Device Error Check and connect pointing device Pointing Device Interface Error Replace the pointing device or contact your dealer Press Okey to continue or ...

Страница 24: ...onfiguration is a major cause of power on error messages especially for a new system 2 Remove the system unit cover Check that the jumpers on the system board and any expansion boards are set correctly 3 If you cannot access a new disk it may be because your disk is not properly formatted Format the disk first using the FDISK and FORMAT commands 4 Check that all connectors and boards are securely ...

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