The Type A-2 system board supports Pentium processors and has the
following features:
P54C socket 7-ZIF connector. You must remove the old processor to
install an upgrade processor.
16 KB internal cache memory, and also supports an optional 256 KB or
512 KB external cache modules.
2 MB Video DRAM soldered on the system board.
Four, 72-pin system memory module sockets support these memory
modules:
– 4 MB, 8 MB, 16 MB, or 32 MB SIMM modules.
– Parity (36 bit) or Non-Parity (32 bit) memory SIMMs.
– Memory speed of 60 nanoseconds (ns).
– Tin-lead contacts.
– Fast page mode or extended data out (EDO).
– Dynamic Random Access Memory (DRAM).
One, 168-pin Gold, EDO, 60 ns, Parity or Non-Parity DIMM module.
Depending on model, 7 MB, 14 MB, 16 MB, or 24 MB of system
memory is supplied. Maximum system board memory is 128 MB. Refer
to “System Memory” on page 1-27 and to “SIMM Configurations—Type
A-2” on page 5-27.
Ports: serial, USB (Universal Serial Bus), parallel, keyboard, mouse,
and video.
Connectors for:
– PCI/ISA riser card (212-pin)
– VESA Video Feature (2x20 un-shrouded)
– Input power (12-pin)
– AT diskette drives (34-pin)
– Two 40-pin Enhanced IDE drive controllers: a primary local bus
IDE that supports two hard disk drives and a secondary Enhanced
IDE that supports a CD-ROM drive and one hard disk drive, or two
hard disk drives.
Note: Enhanced IDE for the Type A-2 system board supports up
to Mode 4. Mode 1, 2, 3, 4, etc. are the progressive industry levels
for Enhanced IDE.
Power light-emitting diode (LED)/hard disk LED (4-pin)
12 volt supply for external speakers
Power-on switch 2-wire connector and a power supply auxiliary control
3-wire connector for Rapid Resume features.
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