Epson ActionPC 1500 Produktinformation Handbuch - Seite 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
U3
Cirrus GD5424 video controller; local bus VGA with
TrueColor support
U4
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
S1
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
l
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
I
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
1MB
4MB
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.
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EPSON ActionPC 1500/2000, ActionTower 2000 - 5
J1
1-2*
Off
RAM4)
Total memory
X
2MB
1MB
4MB
X
8Ms
4MB
18MB
J2
1-2*
Off
I