NEC Versa 550 Series Service Manual page 15

Cyrix DX4-75 /
Cyrix M1sc-100
CPU (3.45v)
BIOS
Flash ROM
4 / 8MB RAM
On-Board
Upgradable to
20 / 24MB
Bank 1 (Slot 1)
4 / 8 / 16MB
DIMM
Built-in
HDD
3.5" FDD
Figure Section 1-2 System Configuration Diagram
Color LCD
(640x480)
DSTN
VL Bus
Controller
(VGA)
Trackball
Pointing
Device
Keyboard
Serial Interface
(RS-232C)
Parallel
Interface
PCMCIA Card
Slot x 2
Battery Pack
Technical Information
External
VGA
Monitor
PS/2 Keyboard
and
PS/2 Mouse
RS-232C
Peripheral
Printer
PCMCIA Card
1-3