Epson ActionPC 1500 Ürün Bilgi Kılavuzu - Sayfa 5

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System bad components

Socket

Component

U2, U11

Super l/O controller (UMC82C863,865); supports up to

two diskette drives, two serial ports. and one parallel Fort

Cirrus GD5424 video controller; local bus VGA with

TrueColor support

ALI M1217 system and memory controller

U5, U6, U7, U8

Video DRAM

U10

Cyrix 486SLC-33/SLC2-50 processor

U13, U14, U15.

Socketed video DRAM

CN1

CN2

CN12

CN13

CN14

Turbo switch connector, 2-pin header

CN18

Hard disk drive connector; 40-pin header

CN18

Hard disk drive, TURBO, and power LED connector:

6-pin header

CN19

Diskette drive connector; 34-pin header

ISA 120-pin slot connector

RAM1,2,3,4

SIMM sockets; two banks of two sockets each

OSC1

Oscillator

I BAT1

I Battery

Jumper Settings

The following table lists the jumpers that can be changed;

other jumpers are for factory use only.

umper settings

Enables diskette drive con

EPSON ActionPC 1500/2000, ActionTower 2000

Jumper settings (continued)

Jumper Jumper

number setting Function

1-2*

J14

Enables the IDE hard disk drive controller

2-3

Disables the IDE hard disk drive controller

1-4

J15

Selects external battery

2-3

Selects the system board battery

3-4

Discharges CMOS memory (this resets the SETUP

values to their factory defaults)

J16

1-2*

Enables the IDE hard disk drive controller

2-3

Disables the IDE hard disk drive controller

* Factory setting

** MS-DOS automatically reassigns parallel and serial ports. Check the

MS-DOS manual for more information.

Built-in VGA jumper settings

Built-in VGA

Enable

Disable

*Factory setting

SIMM Installation

Your computer comes with 2MB, 4MB, or 8MB of memory on

memory mod&s-also called SIMMs (single inline memory

modules). By installing additional SIMMs, you can increase

the amount of memory in your computer up to 16MB.

There are four SIMM sockets on the main system board, and

each can contain one SIMM. You can use 1MB and 4MB

SIMMs.

The following table shows the possible SIMM configurations;

do not install memory in any other configuration. The label

on the system board for each SIMM socket (RAM1 through

RAM4) identifies the bank of sockets where you should install

SIMMS.

Possible SIMM configurations

RAM2)

1MB

4MB

Video Memory

The computer may come with 512KB or 1MB of video

memory. You can increase the video memory to 1MB by

installing four video DRAM DIP (Dual Inline Package) chips

(44256), 70ns.

For the memory to work properly, you must install one chip

in each socket.

5/9/94

EPSON ActionPC 1500/2000, ActionTower 2000 - 5

1-2*

Off

RAM4)

Total memory

2MB

1MB

4MB

8Ms

4MB

18MB

1-2*

Off