
CHAPTER 1: INTRODUCTION
The 486MI system board adds to our 486 product line high integration
and cost effective solution without compromising performance and
quality. With top speed at 50MHz and integrated 64K/128K/256K Write-
Back cache, the 486MI dramatically boosts system throughput for even
the most demanding applications. The 486MI offers features and
functionality exceeding any other system board in its class, including:
CPU:
·
Intel i486DX, i486DX2, i486SX, i487SX, P24T, and Overdrives.
Cache Memory:
·
Supports 64K/128K/256K/512K cache memory.
Main Memory:
·
Supports 512Kx36, 1Mx36, 2Mx36, 4Mx36, and 8Mx36 72-pin SIMM
modules.
·
Up to 64 MBytes on-board memory.
Slots:
·
Three 32-bit VESA Local Bus (VL-Bus) slots. All slots support Bus
Master operation.
·
Seven 16-bit ISA bus slots.
IDE Port:
·
Turbo/Normal selections for fast or slow IDE hard drives.
·
Plug and play, replaces any non-intelligent IDE controller without
reformatting the disk drives.
·
Software drivers are not required for all operating systems.
Page 4 486MI System Board User's Manual