System Board Specifications; Main Board Specifications - NEC Versa 2500 Series Service Manual

SYSTEM BOARD SPECIFICATIONS

The following table lists system board specifications.
Table 2-3 Main Board Specifications
ITEM
Clock
CPU
Cache
DRAM
Video RAM
System Chipset
VGA
PCMCIA
Internal
Connector &
Socket
External
Connector
PCB
SPECIFICATION
NS Clock Buffer CGS74CT 2524
PGA Socket
256KB, L2
1M x 16-bit DRAM x 4
256K x 16-bit DRAM (5V / 60ns), SOJ x 2
UMC UM8891BN, 208 Pin, PQFP
UMC UM8892BN, 208 Pin, PQFP
C&T 65548, 208 Pin, PQFP
Omega 82C094, 208 Pin, TQFP
Omega 82C028, 28 Pin SOIC
To System PCB:
100 Pin, AMP
To HDD:
50 Pin, KEL
To CD-ROM:
40 Pin, KEL
2 Pin, Molex
To Transfer PCB:
2 Pin, Molex
To DC Converter
32 Pin, Suyin
COM1:
9 Pin, Suyin
Printer:
25 Pin
Docking:
160 Pin
Thickness: 1.2mm
Layers: 8
General Specifications 2-7