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System Board

1-3

1

PS/2 keyboard connector

14

Riser card slot

2

LSFM connector (optional)

15

PCI MPEG video decoder

3

BIOS

16

ASIC (PIIX3)

4

Ultra I/O controller

17

Video and graphics controller

5

Power connector

18

First 1-MB video DRAMs

6

Battery

19

Second 1-MB video DRAM sockets

7

Buzzer

20

VGA connector

8

Second-level pipelined-burst

21

Parallel port

cache

9

CPU socket

22

COM2 port

10

Voltage regulator with heatsink

23

COM1 port

11  SIMM sockets

24

PS/2 mouse connector

12

Voltage regulator with heatsink

25

Audio controller

13

ASIC (TXC)

Figure 1-1

System Board Layout

The heatsink becomes very hot when the
system is on.  NEVER touch the heatsink with
any metal or with your hands.

  2

 3

 4

 5

 6

 7

9

10

11

12

20

21

22

23

24

 1

14

15

16

17

25

8

18

19

13

Summary of Contents for V35LA-N

Page 1: ...iser card slot for future expansion It also has four 72 pin SIMM sockets that allow memory upgrade to a maximum of 128 MB and supports 256 KB 512 KB pipelined burst second level cache The onboard video controller MPEG decoder and audio controller enable the system to offer both video and audio functions Standard features such as two serial ports one parallel port a diskette drive interface and an ...

Page 2: ...IDE controller Onboard video and graphics controller and 1 MB VGA memory upgradable to 2 MB Audio controller compatible with Sound Blaster Microsoft Sound and MPU 401 128 KB Flash ROM for system BIOS One riser card slot Dual 16C550 buffered serial ports and one ECP EPP parallel port USB interface that enables the system to support more peripherals optional Standard connector for Wavetable upgrade ...

Page 3: ...ckets 7 Buzzer 20 VGA connector 8 Second level pipelined burst 21 Parallel port cache 9 CPU socket 22 COM2 port 10 Voltage regulator with heatsink 23 COM1 port 11 SIMM sockets 24 PS 2 mouse connector 12 Voltage regulator with heatsink 25 Audio controller 13 ASIC TXC Figure 1 1 System Board Layout The heatsink becomes very hot when the system is on NEVER touch the heatsink with any metal or with yo...

Page 4: ...hout 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 2 Open the system according to the instructions in the housing installation manual 3 Follow the ESD precautions in section 1 2 before handling a system component 4...

Page 5: ...o insertion force ZIF socket for easy CPU installation Follow these steps to install a CPU 1 Pull up the socket lever 2 Insert the CPU making sure that pin 1 indicated by a notched corner of the CPU connects to hole 1 of the socket 3 Pull down the socket lever to lock the CPU into the socket Step 1 Hole for Pin 1 Step 2 Step 3 Figure 1 2 Installing a CPU Notched corner ...

Page 6: ...of the CPU at least 3 of 4 0 2 inches Follow these steps to install an OverDrive CPU 1 Locate the CPU socket and pull up the socket lever 2 Remove the old CPU carefully from the socket and place it in an antistatic package 3 Take the upgrade CPU out of its antistatic package 4 Carefully insert the CPU into the socket such that pin 1 indicated by a notched corner of the CPU connects to hole 1 of th...

Page 7: ...d 1 7 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 ...

Page 8: ...M JP6 1 2 2 3 Enable Acer BIOS logo Enable OEM BIOS logo JP7 1 2 2 3 Enable MPEG function Disable MPEG function JP8 JP9 1 2 2 3 Intel 1 4 burst sequence Linear burst sequence JP11 1 2 2 3 Enable SMM switch Enable Reset switch JP13 SHORT OPEN Assign one regulator for P54C CPU Assign two regulators for P55C CPU JP14 1 2 2 3 Enable P54C shutdown Set P55C I O voltage to 3 3V JP16 1 2 2 3 Enable IDE an...

Page 9: ...7V 2 5V Table 1 4 Bus Frequency Select SW1 1 2 Bus Frequency ON ON 50 MHz ON OFF 60 MHz OFF ON 66 MHz Table 1 5 CPU Core Clock Ratio Select SW1 3 4 P54C M1 K5 ON ON 5 2 1 1 OFF OFF 3 2 3 1 3 2 ON OFF 2 1 2 1 1 1 OFF ON 3 1 4 1 Table 1 6 SB1 Password Function Select SW1 5 6 Setting Disable SB Bypass password ON 1 Sound Blaster ...

Page 10: ...1 10 User s Guide Enable SB Check password OFF ...

Page 11: ... CN8 Keyboard connector CN9 Mouse connector CN10 Audio I O connector CN11 Diskette drive connector CN12 IDE2 connector CN13 IDE1 connector CN14 COM1 port CN15 COM2 port CN16 IrDA connector CN17 Fan power connector CN18 Parallel port CN19 VGA connector CN20 Internal line in connector CN21 ATI Media channel AMC connector CN23 FM Towns connector optional CN25 Power LED connector JP10 Power on switch ...

Page 12: ... and with 70 ns or less DRAM speed The ECC function enables the system to automatically detect and correct data errors Table 1 8 lists the possible memory configurations Table 1 8 Memory Configurations Bank 1 Bank 2 Total SIMM 1 SIMM 2 SIMM 3 SIMM 4 Memory 4MB 4MB 8 MB 8 MB 8 MB 16 MB 16 MB 16 MB 32 MB 32 MB 32 MB 64 MB 4 MB 4 MB 8 MB 4 MB 4 MB 4 MB 4 MB 16 MB 4 MB 4 MB 8 MB 8 MB 24 MB 4 MB 4 MB 1...

Page 13: ...M 2 SIMM 3 SIMM 4 Memory 16 MB 16 MB 32MB 16 MB 16 MB 4 MB 4 MB 40 MB 16 MB 16 MB 8 MB 8 MB 48 MB 16 MB 16 MB 16 MB 16 MB 64 MB 16 MB 16 MB 32 MB 32 MB 96 MB 32 MB 32 MB 64 MB 32 MB 32 MB 4 MB 4 MB 72 MB 32 MB 32 MB 8 MB 8 MB 80 MB 32 MB 32 MB 16 MB 16 MB 96 MB 32 MB 32 MB 32 MB 32 MB 128 MB ...

Page 14: ...IMM matches pin 1 of the socket A SIMM fits only in one direction If you slip in a SIMM but would not completely fit you may have inserted it the wrong way Reverse the orientation of the SIMM 2 Gently push the SIMM to a vertical position until the pegs of the socket slip 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 Fig...

Page 15: ... holding clips on both sides of the SIMM outward to release it 2 Move the SIMM to a 45 angle 3 Pull the SIMM out of the socket Figure 1 6 Removing a SIMM 1 6 3 Reconfiguring the System The system automatically detects the amount of memory installed Run Setup to view the new value for total system memory and make a note of it 1 2 3 Holding Clip ...

Page 16: ... 4 pcs U14 U15 U21 U22 32K x 8 x 1 pc 64 MB 512 KB 64K x 32 x 2 pcs U15 U22 or U14 U21 32K x 8 x 1 pc 64 MB 1 8 Video Function The onboard video controller and MPEG decoder enable the system to support video functions as well as enhance the video display An AMC feature connector is also incorporated in the board design for full hardware MPEG support 1 8 1 Upgrading the VGA Memory Observe the ESD p...

Page 17: ...d Video Resolutions The following table lists the video resolutions that the system supports Table 1 10 Video Resolutions Display Resolution Refresh Rate Horizontal Frequency KHz Pixel Clock MHz 640 x 480 60 31 4 25 2 640 x 480 72 37 7 31 2 640 x 480 75 37 5 31 2 640 x 480 90 47 9 39 9 640 x 480 100 52 9 44 9 800 x 600 48 int 33 8 36 0 800 x 600 56 35 1 36 0 800 x 600 60 37 8 40 0 800 x 600 70 44 ...

Page 18: ... 864 47 int 44 8 65 0 1152 x 864 60 54 9 80 0 1152 x 864 70 66 1 100 1152 x 864 75 75 1 110 1280 x 1024 43 int 50 0 80 0 1280 x 1024 47 int 50 0 80 0 1280 x 1024 60 63 9 110 1280 x 1024 70 74 6 126 1280 x 1024 74 78 8 135 1280 x 1024 75 79 9 135 int interlaced 1 9 Audio Function The audio controller chip on board features an audio subsystem that is compatible with Sound Blaster Pro Microsoft Sound...

Page 19: ...y and set the Reset Resource Assignment parameter to Yes to clear the resource data assigned to the PnP devices Refer to section 2 4 5 3 Install non PnP ISA cards 4 Turn on the system 5 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 BIOS detects and configures only PnP cards 6 Turn off t...

Page 20: ... cables and turn on the system 1 12 Error Messages In the event that you receive an error message do not continue using the computer Note the message and take corrective action immediately This section describes the different types of error messages and suggests corrective measures There are two general types of error messages Software System 1 12 1 Software Error Messages Software error messages ...

Page 21: ...controller Diskette Drive Error Diskette may be bad If not check the diskette drive and replace if necessary DRAM Configuration Error Check and modify DRAM configuration to agree with Table 1 8 Equipment Configuration Error Run Setup Hard Disk Controller Error Check and connect the cable to the hard disk drive or controller Hard Disk 0 Error Check all cable connections Check the hard disk and repl...

Page 22: ... Pointing Device Interface Error Contact your dealer Press F1 key to continue or Ctrl Alt Esc for Setup Press or Press Esc to turn off NMI any key to reboot Press to disregard NMI error Press any key to reboot the system Protected Mode Test Fail Contact your dealer RAM BIOS Error Contact your dealer Real Time Clock Error Run Setup Shadow RAM Fail Contact your dealer System Memory Address Error Che...

Page 23: ...ide Check that 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 physically formatted Physically format the disk using the FDISK and FORMAT commands 4 Check that all connectors and boards are secure Consult the system housing installation guide for assistance If you follow the corrective steps above and still receive an...

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