Epson Computer Manuals

EPSON Endeavor L power (SPEED) hard disk diskette power light accesslight drive button Memory bay for hard disk, diskette drive, CD-ROM drive, tape drive, or other option card slots Video RAM ROM Shadow RAM Cache Math coprocessor Computer Specifications Clock/calendar CPU and Memory 32-bit CPU Intel 486SX, DX, or DX2 processor upgradable to faster, more powerful processors, including SX2, DX4, or Pentium OverDrive processors; DX4 processors require an adapter board to regulate voltage Energy Star Low power consumption, Energy Star compliant in base configurations (consumes less than 30 Watts) System speed Fast and slow processor speeds available; fast speed is the speed of your processor and slow speed is 8 MHz; 0 wait state memory access at fast speed Press Ctrl, Alt, and - to select slow speed or Ctrl, Alt, and + to select fast speed (use the - or + on the numeric keypad); default system speed selectable through SETUP Controllers Video Diskette Hard disk Interfaces Monitor ISA bus speed for all processors is 8.3 MHz; local bus video speed reflects the speed of the processor; 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 DX/2 processors are 25 and 33 MHz respectively 4MB RAM standard on system board; expandable to 36MB using 1MB, 4MB, and 16MB SIMMs; SIMMs must be 72-pin, 32-bit or 36-bit, fast-page mode type with an access speed of 70ns 128KB system and video BIOS and SETUP code located in EPROM on main system board 512KB or 1MB DRAM standard on main system board; 512KB expandable to 1MB using a 256 x 16-bit, 40-pin SOJ DRAM chip Supports shadowing of system and video BIOS ROM into RAM 8KB of internal cache on processor; supports 32KB, 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 and 28-pin, 32 x 8, 15ns tag chips For SX-based systems, can install an 80487SX processor with math coprocessor support; math coprocessor built into DX-based and Pentium OverDrive processors Real-time clock, calendar, and CMOS RAM socketed on main system board with external 3.6V battery backup Cirrus Logic CD5428 high speed super VGA local bus on-board controller with True Color support 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 controller Local bus SVGA interface for fixed or multi-frequency monitor built into system board; 15-pin, D-shell connector 3/94 EPSON Endeavor L - 1