Apple Macintosh II with Macintosh IIfx Logic Board Upgrade (M0375LL/A)

Description

This Auction is for Macintosh II that has a
Macintosh IIfx Logic Board Upgrade (M0375LL/A)
which has beec recapped and the fastest Video card for the Macintosh IIfx Apple 8-24 GC card.
It also comes with 8 MB RAM, 80 MB hard drive and a Ethernet card.
Product Details
Full 32-bit 68030 micro- processor runs at 40 megahertz.
The 32-bit address bus provides up to 4 gigabytes of data space.
256-byte, on-chip address and instruction caches provide high levels of performance.
Built-in PMMU supports virtual, shared, and pro- tected memory in operating systems that have been designed for it.
Burst mode RAM access enables groups of instruc- tions and data to be read in fewer clock cycles than are required in normal access mode.
68882 Math Coprocessor
The 32-bit 68882 math coprocessor runs at 40 megahertz and accelerates the execution of complex math functions, including trigonometric and logarith- mic series.
Optional Parity Support
Parity DRAM and a parity controller can be built into the Macintosh IIfx system as an option.
ROM
A 512K ROM SIMM socket on the logic board provides an easy upgrade path to future versions of ROM SIMMs.
Static RAM Cache
A built-in zero-wait-state 32K Static RAM Cache provides high levels of
Processor
68030, 32-bit architecture
40-megahertz clock speed
Burst mode RAM access
Two 256-byte, built-in instruction and data caches (Harvard architecture)
Coprocessor
68882 floating-point coprocessor (IEEE stan- dard—80 bits precision)
zero-wait-state CPU per- formance.
RAM
RAM in the Macintosh IIfx can be increased to 8 megabytes.
The Macintosh IIfx uses 80-nanosecond RAM.
As denser, 4-megabit and 16-megabit RAM chips become available, RAM can be increased to 32 and 128 megabytes, respectively.
Input/Output Processors
Two dedicated I/O processors manage low- level I/O tasks for the serial ports, floppy disk drive(s), and Apple Desktop Bus, providing higher levels of overall system performance.
NuBus Expansion Slots
NuBus provides a multiplexed 32-bit address bus and data bus on a single 96-pin connector.
NuBus is self-configuring. Cards can be plugged into any slot and the system will automatically identify and configure each card, without DIP switches or jumper wires.
The NuBus architecture supports data transfer rates of up to 37.5 megabytes per second.
SCSI (Small Computer System Interface)
SCSI is a high-perform- ance interface bus used to connect hard disks and other SCSI-based devices, such as the AppleCD SC
®
CD-ROM drive and the
40-megahertz clock speed
Static RAM Cache
Built-in zero-wait-state 32K Static RAM Cache memory architecture
DRAM
80-nanosecond, fast- page mode, 64-pin SIMMs
1-megabit DRAM package
Apple Scanner, to the Macintosh IIfx. Up to seven SCSI peripherals, including an internal hard disk, can be connected.
The Macintosh IIfx SCSI subsystem is managed by a dedicated SCSI/DMA controller, which increases system efficiency.
The SCSI I/O subsystem can provide data transfer rates in excess of 3 mega- bytes per second.
Network Support
The Macintosh IIfx provides full ROM support for all AppleTalk protocols, and includes built-in serial ports for LocalTalk net- work connections.
Operating System Support
Macintosh system software includes: —System Tools Version 6.0.5 or greater (the Macintosh operating system)
—Printer disk (printer drivers for all Apple printers)
—Utilities disks (include utilities such as the Apple File Exchange, HD SC Setup, CloseView, Disk First Aid
TM
, and Font/DA Mover)
HyperCard
®
Version 1.2.5 (or greater) is in- cluded.
A/UX Version 2.0 (optional) is compatible with the Macintosh IIfx.
4- or 8-megabyte memory configurations