HP 744 Hardware User Manual page 27

NOTE:
NOTE:
Either a GSC expansion kit or the HCRX expansion graphics boards extend
graphics capability beyond the on-board graphics chip set of a Model 744
Board Computer. However, the HP-RT operating system supports only one
graphics display, and HP-UX 10.x supports up to three graphics displays.
• Main Memory
Single VME slot 744: 32, 64, or 128 MB RAM
Single VME slot 744 with HP-RT: 16 to 128 MB RAM
Dual VME slot 744: 32 to 512 MB RAM
Dual VME slot 744 with HP-RT operating system: 16 to 512 MB
RAM (Dual slot means an expansion kit or HCRX board must be
installed.)
A Model 744 configured for more than one RAM card requires installation of
a PMC bridge board, a GSC expansion kit, or an HCRX graphics board,
thereby occupying two VME slots.
Up to four RAM cards may be installed.
When mixing memory card capacities that include 128MB cards,
the 128MB card(s) must be installed into the lowest memory slots
before adding cards of other capacities.
• Standard Features
Internal SCSI-2 single-ended bus
2 asynchronous RS-232-C ports (requires a conversion cable)
1 HP parallel port (requires a conversion cable)
1 LAN AUI port (requires a conversion cable)
2 mini-DIN PS/2 ports
1 slot for RAM memory (memory cards can be stacked)
CD-quality audio, supported only by HP-UX and requires a
conversion cable
PCMCIA adapter, supported only by HP-RT (not supported on
Model 744 with on-board graphics)
Model 744 Board Computer Overview
Product Description
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