Chapter 1 System Overview
Hippo DCA2 User’s Manual
7
1.16
General Specifications Overview
Processor:
Processor Type
Intel 486SX-25/33, 486DX-25/33, 486DX2-50/66
Intel 486DX4-75/100, Intel P24T
AMD 486DX-40, 486DX2-50/66
Cyrix 486DX-33, 486DX2-50/66
Speed
25 / 33 / DX2-50 / DX2-66 / DX4-100
CPU voltage detection
Automatic voltage conversion circuitry
Cache Architecture:
Internal Cache
8KB 4-way set associative cache (SX/DX/DX2)
16KB 4-way set associative cache (DX4)
External Cache
DynamiCache Architecture II (DCA2) running at CPU speed
DynamiCache running at 15ns
Memory Subsystem:
DynamiCache Simm sockets 2 x 72 pin 4MB / 8MB / 16MB DynamiCache modules
DRAM Simm sockets
2 x 72 pin 4MB / 8MB / 16MB / 32MB DRAM modules
Max. Memory Size
96MB
Mixed Memory Type
Support mixed DynamiCache / DRAM modules
Memory Width
32-bit DynamiCache & DRAM
Enhancement
Fast Page Mode and Hidden Ref resh supported
BIOS Subsystem
BIOS Type
AMI / Microid Research
BIOS Shadowing
Shadow RAM f or System and Video BIOS
BIOS Features
Built-in setup, Power-on self test, Drive table optimization, User-
def inable drive types, Password protection, Shadowing options
Input/Output Subsystem
VESA bus slots
3 x 32-bit VL-Bus slots (2 slave, 1 master/slave)
ISA bus slots
6 x 16-bit ISA slots
2 x 8-bit ISA slots
I/O bus speed
Up to 33MHz (VESA bus)
Power Management
Green f unctions
Support Green Functions (Hardware contro lled)
Voltage regulation f or DX4 CPUs
System Support Functions
System f unctions
7 DMA channels, 16 level interrupts, Programmable timers
Support f unctions
Fast A20 gate and Fast Reset
Clock
Enhanced real time clock/calendar with battery back -up
Other Features
Power good
On board power good signal generation
Switches
Hardware Turbo, Reset, Keylo ck switches
Size
8.5" (W) x 11" (L)
