DTA: Specifications
Specifications
Microprocessor
System Information
Expansion Bus
System Clocks
Memory
Drives
Ports
Video
Processing-Speed Key Combinations
System-Function Key Combinations
Controls and Indicators
Power
Physical
Environmental
Regulatory Notices
Microprocessor
Microprocessor type 33-MHz SL Enhanced Intel486� DX chip;
33-MHz SL Enhanced Intel486 SX chip;
50-MHz internal/25-MHz external
SL Enhanced IntelSX2� chip;
50-MHz internal/25 MHz external
SL Enhanced IntelDX2� chip;
66-MHz internal/33-MHz external
SL Enhanced IntelDX2 chip;
100-MHz internal/33-MHz external
SL Enhanced IntelDX4� chip
Internal cache 16 KB (SL Enhanced IntelDX4 microprocessor)
8 KB (all other microprocessors)
External cache:
IntelDX2 and IntelDX4 128-KB static SRAM (standard)
Intel486 SX and IntelSX2 128-KB static SRAM (optional upgrade)
Math coprocessor internal
(except SL Enhanced Intel486 SX and
IntelSX2 chips)
Microprocessor socket LIF
System Information
System chip set VLSI
Data bus width 32 bits
Address bus width 32 bits
DMA channels 7
Interrupt levels 15
Flash EPROM 1 Mb
Serial port UART 16550-compatible
Expansion Bus
Bus type ISA,
VL-Bus� (optional)
Expansion slots 6 full-length, 16-bit ISA
2 optional VL-Bus
ISA bus speed:
25- or 50-MHz processor 8.33 MHz
33-, 66- or 100-MHz processor 8.25 MHz
VL-Bus speed:
25- or 50-MHz processor 25 MHz
33-, 66- or 100-MHz processor 33 MHz
ISA connector data width 16 bits (maximum)
ISA connector size 98 pins
VL-Bus connector data width 32 bits (maximum)
VL-Bus connector size 112 pins
System Clocks
Diskette/communications ports 24 MHz from system clock
System clock 25 or 33 MHz (depending on
processor used)
Keyboard controller 8 MHz
Memory
Architecture interleaved (if both SIMMs are of the
same capacity);
otherwise, noninterleaved
Wait states 0 or 1
SIMM sockets 2
SIMM capacities 4, 8, 16, and 32 MB
(parity or nonparity)
Standard RAM 4 MB
Maximum RAM 64 MB
External cache 128-KB, direct-mapped SRAM*
Memory access time
tRAC 70 ns
tCAC 20 ns
BIOS address F0000h
* Standard for 66-MHz internal/33-MHz external SL Enhanced IntelDX2� chip, 100-MHz internal/33-MHz external SL
Enhanced IntelDX4� chip. Optional for 33-MHz SL Enhanced Intel486 SX chip and 50-MHz internal/25-MHz external
SL Enhanced IntelSX2 chip.
Drives
Externally accessible bays (3) 5.25-inch bays for half-height diskette drives,
tape drives, or CD ROM drives
(1) 3.5-inch bay for a diskette drive or tape drive
Internally accessible bays (2) 3.5-inch bays support up to (1) 1-inch
and 1 half-height hard-disk drive
Ports
Externally accessible:
Serial (DTE) (2) 9-pin connectors;
16550-compatible, 16-byte buffer
Parallel (1) 25-hole connector (bidirectional)
Video (1) 15-hole connector
PS/2-style keyboard (1) 6-pin mini-DIN
PS/2-compatible mouse (1) 6-pin mini-DIN
Internally accessible:
EIDE hard-disk drive* 40-pin connector
Diskette drive 34-pin connector
VGA feature 26-pin connector
* Supports LBA, PIO mode 2 and ATAPI.
Video
Video type VGA
Video chip set Cirrus CL-GD5429
Video memory 1 MB
Maximum resolution 1280 x 1024 pixels, 16 colors
Processing-Speed Key Combinations
<CTRL-ALT-\> toggles microprocessor speeds on 101-key keyboard
<CTRL-ALT-#> toggles microprocessor speeds on 102-key keyboard
System-Function Key Combinations
<CTRL-ALT-DEL> restarts (reboots) the computer
<CTRL-ALT-ENTER> starts System Setup program (MS-DOS� only)
Controls and Indicators
Reset control push button
Power control push button
Power indicator green LED
Diskette-drive access indicator green LED
Hard-disk drive access indicator green LED
Power
DC power supply:
Wattage 224 W
Voltage 90 to 130 V at 60 Hz or
180 to 265 V at 50 Hz
Heat dissipation 250 BTUs
Backup battery 3-V CR2032 magnesium-oxide
coin-cell
Physical
Height 41.66 cm (16.40 inches)
Width 19.69 cm (7.75 inches)
Depth 44.20 cm (17.40 inches)
Weight 14.5 kg (32 lb)
Environmental
Temperature:
Operating 0 to 35C (32 to 95F)
Storage -40 to 65C (-40 to 149F)
Relative humidity 8% to 80% (noncondensing)
Vibration:
Operating 0.25 G
Storage 0.5 G
Shock:
Operating 5 G
Storage 20 G
Altitude:
Operating -16 to 3048 m (-50 to 10,000 ft)
Storage -16 to 10,600 m (-50 to 35,000 ft)
Regulatory Notices
FCC (U.S. Only)
 Class B
DOC (Canada)
Class B
CE Mark
EN 55022
EN 50082-1
IEC 801-2
IEC 801-3
IEC 801-4
NOTE: If the front panel of the computer bears the Energy Star emblem, then its original configuration complies with the requirements set for it by the EPA for energy-efficient computers.
UL
For computers set at 115 V  Use a UL-certified grounded cable, type SVT or SJT, with a minimum of 18
American wire gauge (AWG). The cable must be no longer than 15 feet and must have a parallel-blade,
grounded plug rated for 15 A.
For computers set at 230 V (within the U.S.) Use a UL-certified grounded cable, type SVT or SJT, with a
minimum of 18 AWG. The cable must be no longer than 15 feet and must have a tandem-blade, grounded plug
rated for 15 A/250 V.
For computers set at 230 V (outside the U.S.) Use a grounded cable, type SVT or SJT, with a minimum of
18 AWG. The cable must be no longer than 15 feet, must be rated according to the requirements of the
country in which the equipment is to be used, and must have a grounded plug. The cable should be labeled
"HAR" and should have the appropriate safety approvals for each country.
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