System Components - NEC Versa TXi Series Service Manual

System Components

The following system component specifications are standard except where noted.
System Processor
Depending on the model:
Intel Celeron processor — 500-MHz
Intel Pentium III processor — 750-MHz, 700-MHz, 650-MHz, or 600-MHz (with Intel
SpeedStep)
Architecture
64-bit Peripheral Component Interconnect (PCI)
Random Access Memory
n Standard Main Memory
— Standard 64-MB RAM on the system board
— System supports a 64-MB, 128-MB, or 256-MB 144-pin, PC100 SO-DIMM in one
SO-DIMM slot
— Supported configurations include
64-MB module plus the standard 64 MB, for a total of 128 MB
128-MB module plus the standard 64 MB, for a total of 192 MB
256-MB module plus the standard 64 MB, for a total of 320 MB
n
Video RAM — 8 MB SGRAM
n Cache RAM —
— L1: 16KB code, 16KB data, 4 way set associate, write back (data)
— L2: 128KB built-in (Celeron) or 256KB built-in (Pentium III)
Read-Only Memory
512 KB x 8 bit, Flash ROM
Calendar Clock
Year/month/day/hour/minute/second maintained by internal back-up battery
Input/Output (I/O) Facilities
Integrated industry-standard interfaces
n
Parallel/Serial — 1 dual-purpose port. 25-pin D-sub, IEEE 1284 compatible for printer
support (ECP and EPP) via parallel transfer adapter cable. Serial device support via serial
transfer adapter cable.
n
VGA — 1 port, 15-pin high-density D-sub
n TV Out — 1 port, RCA x1 (via transfer cable)
n
USB — 3 ports, 4 pin USB 1.1 standard
n IEEE 1394 — 1 port, 1394 standard 6-pin 1394 bus
n Dual Headphone and S/PDIF— 1 shared port
— 3-pin, Mini Pin Jack, .5 watts per channel
— S/PDIF fibre optic connection for input/output
7-2 Specifications