EPSON ActionDesk
4000+
ActionDesk 4000+
The following diagrams illustrate the outside of the
ActionDesk 4000+ system.
power
button
/
reset button
PARALLEL
AC outlet
diskette drive
monitor cable
MOUSE
Computer Specifications
CPU and Memory
System speed
Memory
ROM
Video RAM
Shadow RAM
Memory
relocation
Cache
Math
coprocessor
Clock/calendar
Fast and slow speeds available as described
in the table below; speed selection through
keyboard commands or jumper setting
At fast speed, DX2/50 and DX2/66
processors run internally at 50 and 66 MHz,
but run externally at 25 and 33 MHz; local
bus speeds for DX2 processors are 25 and
33 MHz, respectively
4MB RAM standard on a SIMM;
expandable to 64MB using 1MB, 2MB,
4MB, 8MB, 16MB, and 32MB SIMMs
(when available); SIMMs are tin-plated
(preferably), 72-pin, 32-bit or 36-bit,
fast-page mode type with access speed of
70ns or faster
Phoenix system BIOS, video BIOS, and
SETUP code located in 128KB EPROM on
main system board
1MB DRAM on main system board;
expandable to 2MB using two ZIP chips
Supports shadowing of system and video
BIOS ROM into RAM
Supports relocation of 256KB of memory
from A0000h to BFFFFh and D0000h to
EFFFFh to extended memory
8KB of internal cache on the CPU;
supports 64KB, 128KB, or 256KB of
external cache using 28-pin, 8 x 8, 20ns
DIP chips or 28-pin, 32 x 8, 20ns DIP chips
Math coprocessor built into DX, DX2, and
Pentium OverDrive processors
Contained in the 82C491 system controller
chip along with 64 bytes of CMOS RAM
backed up by a soldered NiCad
rechargeable battery
32-bit CPU
Green PC
Energy saver
Intel 486SX, DX, or DX2 processor
upgradable to faster, more powerful
processors, including the Pentium
OverDrive
Energy Star compliant (using less than
30 Watts) with a low-power standby mode
for the hard disk drive and the video
signals the computer sends to the monitor;
time periods selectable in SETUP
12/93 EPSON ActionDesk 4000+ - 1
Controllers
Video
Diskette
Cirrus Logic GD5428 high speed local bus
super VGA local bus controller with True
Color support
Controller on main system board supports
up to two diskette drives or one diskette
drive and one tape drive
EPSON ActionDesk 4000+
Hard disk
Interfaces
Monitor
Parallel
Serial
Keyboard
Mouse
Optional game
port
Option slots
Speaker
High-speed, 32-bit local bus IDE interface
on main system board supports up to two
IDE hard disk drives with built-in
controller; BIOS provides hard disk
auto-sensing function
VGA interface for fixed or multi-frequency
monitor built into system board; supports
a low-power standby mode for Energy
Star compliant monitors; 15-pin, D-shell
connector
One standard 8-bit parallel bidirectional
interface built into main system board;
25-pin, D-shell connector
Two RS-232C, programmable,
asynchronous interfaces built into main
system board; 9-pin, D-shell connectors
PS/2 compatible keyboard interface built
into main system board; 6-pin, mini DIN
connector
PS/2 compatible mouse interface built
into main system board; 6-pin mini DIN
connector
Optional 10-pin game port interface on
system board; can control joy-stick
functions with the addition of a port
connector.
Three 16-bit, full-length and two &bit,
half-length I/O expansion slots, ISA
compatible, 8.33 MHz bus speed
Internal
Keyboard
Detachable, two-position height; 101 or
102 sculpted keys; countrydependent
main typewriter keyboard; numeric/
cursor control keypad; four-key cursor
control keypad; 12 function keys
SETUP Program
Stored in ROM; accessible by pressing
duringboot
F2
System security User and supervisor level passwords
(8 characters) available for system boot or
diskette access
Virus protection Write protection feature for the hard disk
drive boot sector; periodic reminder
message for
running virus detection utility
Physical Characteristics
Width
Depth
Height
Weight
15.6 inches (396 mm)
14.5 inches (368 mm)
4.1 inches (104 mm)
15 lb (6.8 kg), without drives or keyboard
Power Supply
Type
Input ranges
Maximum
outputs
Frequency
Cables
65 Watt, UL listed, fan-cooled
90 to 115, 230 to 260 VAC
+5
VDC at 7.5 Amps, -5 VDC at
0.1 Amp, +12 VDC at 2.0 Amp,
-12 VDC at 0.2 Amp
50/60
Hz
Two to main system board; four to mass
storage devices
Mass storage
Internal mounts:
Two
3%nch
with three or more option cards installed,
the power supply only supports one
internal drive
Externally accessible mounts:
One
3%nch
one
Diskette drives
5%~h
3.5-inch
wide, half-height drive
diskette drive, 720KB or 1.44MB
storage capacity
5.25-inch
diskette drive, 360KB or 1.2MB
storage capacity
Hard disk
drives
Other devices
3!++inch
form factor hard disk drive(s), up
to half-height size
Half-height tape drive, CD-ROM, optical
drive, or other storage device; 51/4-&h or
3!44nch
with mounting frames
EPSON ActionDesk 4000+ - 2
wide, one-inch high drives;
wide, third-height drive and
Option Slot Power Limits
Maximum current
For all slots*
l
Based on a system containing one hard disk drive and one diskette drive
+5 Volts -5 Volts +12 Volts -12 Volts
3.3 Amps 0.1 Amp 1.0Amp 0.1 Amp
Environmental Requirements
Condition
Temperature
Maximum wet
Accoustical noise
12/93
41° to 90° F
(5° to 32° C)
-330 to 9,900ft
(-100 to 3,000 m)
68° F (20° C)
46.2dB
Non-operating
range
-4° to 140° F
(20° to 60° C)
10% to 90%
-330 to 39,600 ft
(-100 to
12,000 m)
104° F (40° C)
N/A
-330 to 39,600 ft
(-100 to
12,000 m)
134° F (57° C)
-4
WA
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Major Subassemblies
EPSON ActionDesk 4000+
System Board Components
optional video option card
memory sockets connector board
I
I
mounting bracket for
hard disk drives
\
I
/-
connector
system
diskette drive
connector
/
.
drive bays
12/93
EPSON ActionDesk 4000+ - 3
EPSON ActionDesk 4000+
System board components and connectors
I Component
I
Processor
1
U27
U28
U10
U4
lU6
U13
U35
U12 Clock generator (IMI SC 425 chip); 4V to 7V operating supply
U20-23. U29-32
I U36
U7, U8, U2, U3
CN2
CN3
CN5
CN4
1cN6
J21
J3, J24
J30
J32
I S1
1
U18. U19j SIMM sockets: 4MB standard on a SIMM in U19
1
Phoenix system and VGA BIOS; 15Ons. 8-bit operation
System controller (UMC82C491); integrated system, memory,
and cache controller
Video controIler (GD5428); local bus VGA with integrated palette
DAC, dual-frequency synthesizer, BitBLT for GUI acceleration
Line and serial controller (UMC82C865F)
1
Keyboard/mouse controller (8042 compatible UPI)
Super I/O controller (UMC82C863); supports up to two diskette
drives, two serial ports, and one parallel pert
Local bus IDE controller (Adaptec AIC-24VL01Q)
range, 1
ns skew, CMOS or TTL compatible outputs
Cache SRAM sockets
IC8ChtepSOCk6ft
Video DRAM; two
sockets at U2 and U3
Video connector: 15Parallel port; 25-pin, D-shell
Serial port labeled COM1; 9-pin, D-shell
Serial
port labeled COM2: 9-pin. D-shell
I Mouse; 6-pin, mini-DIN
Speaker connector; 4-pin header
Reset; P-pin header
Hard disk drive; 4O-pin header
Hard d&k drive. weed. and power LED connector: 6-pin header
1
ISA 120-pin slat connector
chips soldered at U7 and U8; two expansion
Spin. D-shell
Jumper Settings
Jumper settings
Jumper Jumper
number
J4
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J5
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J9, J10, J11
J14
J16***
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J34
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J35
*Factory setting
** You can use MS-DOS to automatically reassign parallel and serial ports.
Check your MS-DOS manual for more information.
***Setting depends on CPU
External cache jumper settings*
Cache size
I
128KB
I=
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If you have no external cache installed, the position of these jumpers does
not matter.
setting Function
1-2
2-3*
1-2*
12-3
12-3’
Off*
on
1-2
3-4
5-6
off’
on
2-3*
3-4
1-2.
2-3
1-2. Reserved
Enables game port
Disables game port
Assigns PARALLEL
Disables diskette drive controller
Featured
Disables IRQ9 for VGA
Enables IRQ9 for VGA
Selects a CPU clock speed of 33 MHz (486SX/33,
486DX33, 486DX2/66, and Pentium OverDrive
processor)
Selects a CPU clock speed of 50 MHz (DX/50)
Selects a CPU clock speed of 25 MHz (4865SX/25,
486DX2/50)
Selects fast speed
Selects 8 MHz speed
Selects the system board battery
Discharges CMOS memory (this resets the SETUP
values to their factory defaults)
Enables the IDE hard disk drive controller
Disables the IDE hard disk drive controller
port
as LPT1
1-2 1-2 Off
2-3
1
2-3
1-2
12-3 12-3
J27
1-2
J28
2-3
1-2
12-i 1
J17
J19
J22
J36
J37
‘I
J14. J16
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-1 =
J25, J26,J27, J28
EPSON ActionDesk 4000+ - 4
J4-J11
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J34
Processor type jumper settings
WP.
486DX, DX2, or Pentium OverDrive
486SX
VGA jumper settings
VGA jumper function
Enable on-board VGA
Disable on-board VGA
12/93
J17 J19
1-2,3-4
1-2
2-3 Off
J36
on
Off Off
J37
on
EPSON ActionDesk
4000+
SIMM Installation
Resolutions and Colors
Your computer comes with 4MB of memory on a SIMM. You
can increase the memory up to 64MB by installing 1MB,
2MB, 4MB, 8MB, 16MB, and 32MB SIMMs in the computer’s
two SIMM sockets. The following table shows the possible
SIMM configurations; do not install memory in any other
configuration.
SIMM configuration
Bank 0
~bl&l
IX
ITCltdmUfUlty
I4MB
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1280x1024
*Non-interlaced and interlaced
**Interlaced
External Cache
You can install 64KB, 128KB, or 256KB of external cache on
this system.
Cl
P
0
c;I
16MB
16MB
16MB
16MB 16MB
X
1MB
16MB
18MB
20MB
24MB
32MB
32MB
33MB
34MB
36MB
40MB
48MB
1
2
1
2
256 43.5/60/70/72
16
256 43.5
43.5
43.5
8 bits/pixel*
16 bits/pixel*
4 bit planes**
8 bits/pixel**
To install 64KB of external cache, use eight SRAM, 28-pin,
8x8, 20ns DIP chips, and one 8x8, 20ns tag chip
To install 128KB of external cache, use four SRAM, 28-pin,
32 x 8, 20ns
DIP chips, and one 8 x 8, 20ns tag chip
To install 256KB of external cache, use eight SRAM,
28-pin, 32 x 8, 20ns DIP chips, and one 32 x 8, 20ns tag chip
To install any cache on a 486DX/50 system, make sure the
tag chip is a 15ns chip.
Use tin-plated (preferably), 32-bit or 36-bit, 72-pin, fast-page
mode SIMMs that operate at an access speed of 70ns or
faster. Be sure all the SIMMs operate at the same speed.
For the cache memory to work properly, you must install
chips in the following configuration (each bank contains four
cache memory sockets).
Cache memory configurations
IBWlkO
Video Memory
This system comes with 1MB of video memory. You can
increase the video memory to 2MB by installing two video
U20,21,22,23 U29,30,31,32 U36
8Kx8
32Kx8
32KX8 32Kx8 32Kx8
DRAM, 40-pin, 256KB x 16-bit, ZIP (Zig-zag Inline Package)
chips.
For the memory to work properly, you must install one chip
in each socket.
IBUlk
8Kx8 8Kx8
X
ITWISFWM
8Kx8
I
Total cache
128KB
256KB
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12/93
EPSON ActionDesk 4000+ - 5
EPSON ActionDesk 4000+
Microprocessor Upgrades
The computer’s processor can be upgraded by replacing the
existing microprocessor with a faster one. You can either
purchase an upgrade kit from Epson or buy the individual
components separately, as listed in the following table.
Microprocessor upgrade components
*For the SX/25, SX/33, and DX/33 processors
**For the DX/50, DX2/50, DX2/66, and Pentium OverDrive processor
SX/25, SX/33, and DX/33 processors require a heat sink.
DX/50, DX2/50, DX2/66, and Pentium OverDrive
processors require a heat sink and a fan. Make sure jumpers
J16, J17, and J19 are set correctly for the new processor.
Hard Disk Drive Types
This system comes with a hard disk auto-sensing feature.
When
Autotype Fixed Disk
detects the type of hard disk drive you have installed and fills
in the drive information using values in the following table.
Hard disk drive types
Fan Installation
Some upgrade kits for processors that require both a heat
sink and a fan contain a separate fan assembly. Secure the fan
to the bracket using the long screws and the nuts. Then
secure the bracket to the chassis with the short screws.
Connect the fan connector to J12, aligning the small triangle
on the case of the connector with pin 1.
you press
Enter with
the cursor positioned on the
option in SETUP, the system
EPSON ActionDesk 4000+ - 6
12/93
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Actual formatted size may be slightly different than size on drive label; you
cannot change this value.
EPSON ActionDesk 4000+
Some older or preformatted drives do not support the
auto-sensing feature. If the parameters displayed do not
match the parameters of your hard disk drive, you can define
your own drive type in SETUP.
IDE hard disk drive jumper settings
Model number Single drive Master drive Slave drive
Conner CP30084E
Conner CP30104H
Drive Option Information
Hard disk drive
options
for 1-inch IDE drives
Western Digital
AC1170
Western Digital
*CS (cable selection) can be jumpered for any configuration. When CS is
used, the drive is a master if pin 28 is grounded and a slave if pin 28 is not
grounded.
Diskette drive options
C/D jumpered C/D jumpered No jumpers
C/D jumpered
C/D, DSP
No jumpers
3-4 jumpered
3-4 jumpered
*Select 1 or more for the precomp value. lf neither of these options are
available, select the maximum available precomp value.
DMA Assignments
plA7
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-w-w
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12/93
EPSON ActionDesk 4000+ - 7
EPSON ActionDesk 4000+
Hardware Interrupts
System Memory Map
000FFFFFFh
System BIOS ROM: 64MB
Duplicated from OFOOOOh
000FF0000h
Reserved for system board: 64KB
Duplicated from OEOOOOh
000FE0000h
(Maximum
system
memory)
System l/O Address Map
00100000h
000F0000h
000A0000h
Extended memory
System BIOS ROM: 64KB
Default Shadow RAM duplicated at FF0000h
Unused or I/O expansion ROM 160KB
Reserved for ROM on I/O adapters
VGA BIOS ROM: 32KB
Default shadow RAM
VGA text
(color): 32KB
Unused or VGA text
(monochrome): 32KB
Video memory: 64KB
Reserved for graphics display buffer
640KB
Conventional system memory 640KB
1MB
EPSON ActionDesk 4000+ - 8
12/93
EPSON ActionDesk 4000+
Connector Pin Assignments
Hard disk drive connector pin assignments (J30)
Parallel port connector pin assignments (CN3)
I14
*Active low logic
Speaker connector pin assignments (J21)
12
Keyboard and mouse connector pin assignments (CN7 and CN6)
Pin Signal Pin Signal
1 Data 4 +5 VDC
2 NC
3
Ground
5
Clock
8 NC
Optional game port interface pin assignments (J2)
01
Pin
Signal Pin
1
RESET* 15
2
Ground
3 D7 17 D0
ID13
128 INC
Pin
1
Signal
D1
18 D14
1
IVCC
Ismaker
Signal
Pin Signal
29
NC
30
Ground
31
Interrupt
I
I
I
-1
*Active low logic
**All odd-numbered pins are grounds
Optional game port connector pin assignments
Pin ISignal
1
lvcc
2
Button 0
3
Position 0
4
Is
Ground
l&OtJIld
Pin Signal Pin Signal
8
Position 1
7
Button 1
8 VCC 13 NC
0 VCC
10 NC
11
NC
12 NC
14
15 NC
NC
1
12/93
EPSON ActionDesk 4000+ - 9
EPSON ActionDesk 4000+
Option curd riser board connector pin assignments (S1)
Installation/Support lips
Installing Diskette Drives
A24 SA7 B18
A25sA8
*Active low logic
B19
DFNN
FWRESW Cl3
C12 SD9
SD10
Make sure that the drive type has been correctly selected in
the SETUP program.
Installing Hard Disk Drives
To take full advantage of the local bus IDE interface, your
hard disk drive must support a 32-bit data path that uses
double-word I/O.
When installing a hard disk drive, see the hard disk drive
type tables and use the auto-sensing feature in SETUP to
select the correct type number for the drive. If the
auto-sensing feature does not produce a match for the
drive, you can define your own drive type by selecting
User
as the type and entering the drive’s exact
parameters.
Make sure you have installed the local bus IDE drivers on
your hard disk and that the CONFIG.SYS file loads the
drivers.
If you install the IDE drivers and also install Paradox for
Windows or a SCSI drive, Windows may not run correctly.
It is recommended that a 16-bit, AT-type hard disk
controller be used if you are installing a drive that cannot
use the embedded IDE interface. If you install a non-IDE
hard disk drive and controller card, you need to disable
the built-in IDE hard disk drive interface by moving
jumper J35 to position 2-3. If you disable the on-board
IDE, you will not be able to benefit from the built-in local
bus IDE controller.
L
If you plan to install two hard disk drives in the internal
bays, you must use flat-head screws (#6-32UNC x 8
FH,M,+) to secure the top drive to the mounting bracket.
EPSON ActionDesk 4000+ - 10
12/93
If you are installing an ESDI hard disk drive, make sure
0
you disable the built-in IDE hard disk drive interface by
moving jumper J35 to position 2-3. Also be sure to remove
the had disk drive ribbon connector from the system
board.
EPSON ActionDesk 4000+
Information Reference List
Engineering Change Notices
None.
Floppy Disk Drive Problems
If you use a password for the diskette drive access, you
0
must enable
don’t enable this option, you see an error message
whenever you try to access the diskette drive.
the Password on Boot
option. If you
Overheating Problems
0
Make sure that the DX, DX2, or Pentium OverDrive
processor has an adequate heat sink and fan installed to
prevent overheating. The Epson CPU upgrade kit comes
with a heat sink and a fan. Other manufacturer’s kits may
not include these items.
Software Problems
Q
When installing a copy-protected software package, first
try the installation at high speed. If this does not work
properly, select low speed by pressing the Ctrl and Alt
keys and the - key on the numeric keypad
simultaneously. Try loading the program at low speed
and then switching to high speed, if possible.
0
When using a software package that uses a key disk as its
copy-protection method, try loading it at high speed. If
this does not work, load it at low speed.
Installing Option Cards
Although this system will support most full-length option
0
cards, option cards with an I/P connector on the back may
not fit into the option slot.
Technical Information Bulletins
None.
Product Support Bulletins
None.
Related Documentation
TM-ACTD4
AD4000+ADD EPSON ActionDesk 4000+ Service Manual
PL-ACTD4+
400274700
EPSON ActionDesk 4000 Service Manual
Addendum
EPSON ActionDesk 4000+ Parts Price List
EPSON ActionDesk 4000+ User’s Guide
Make sure the power requirements of the option cards
0
you install do not exceed the power supply limitations.
If the computer locks up, the power supply may be
Q
overloaded. On a system with three or more option cards,
the installation of a second hard disk drive may overload
the power supply.
If you are installing a video adapter card that doesn’t
0
support VGA, make sure you disable the built-in VGA by
changing jumpers J36 and J37 to the Off position.
COM Port Assignment
If you want to assign COM1 as COM3, you must set jumper
J6 to position 2-3. If you want to assign COM2 as COM4, you
must set jumper J7 to position 2-3.
Booting Sequence
If you cannot boot the computer from the hard disk make
sure the booting sequence in SETUP is set to
Then boot the computer from a system diskette in Drive A.
A:
then C:.
12/93 EPSON ActionDesk 4000+ - 11
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