Epson Endeavor User Manual - Page 156

CONTROLLERS, Video RAM, Cache, coprocessor, Diskette, Hard disk

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Video RAM Shadow RAM Cache Math coprocessor Clock/ calendar 512KB or 1MB DRAM on main system board; 512KB configuration expandable to 1MB Supports shadowing of system and video BIOS ROM into RAM 8KB of internal cache (built into the microprocessor) On 4DX/33 and 4DX2/50 systems, math coprocessor built into the microprocessor; optional 487 upgrade available for 4SX/25 system Real-time clock, calendar, and CMOS RAM socketed on main system board with built-in battery backup Controllers Video Diskette Hard disk Cirrus® VGA controller on main system board; provides resolutions up to 1024 x 768 Controller on main system board supports up to two diskette drives or one diskette drive and one tape drive Interface on main system board supports up to two IDE hard disk drives with built-in controllers A-2 Specifications

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Video RAM
Shadow
RAM
Cache
Math
coprocessor
Clock/
calendar
Controllers
Video
Diskette
Hard disk
512KB or 1MB DRAM on main system
board; 512KB configuration expandable
to 1MB
Supports shadowing of system and video
BIOS ROM into RAM
8KB of internal cache (built into the
microprocessor)
On 4DX/33 and 4DX2/50 systems, math
coprocessor built into the microprocessor;
optional 487 upgrade available for 4SX/25
system
Real-time clock, calendar, and CMOS
RAM socketed on main system board with
built-in battery backup
Cirrus® VGA controller on main system
board; provides resolutions up to
1024 x 768
Controller on main system board supports
up to two diskette drives or one diskette
drive and one tape drive
Interface on main system board supports
up to two IDE hard disk drives with
built-in controllers
A-2 Specifications