CPUs SUPPORTED*
Intel
®
Pentium
®
P54C (75MHz to 200MHz)
Intel
®
Pentium
®
MMX P55C (166MHz to 233MHz)
Cyrix
®
/IBM
®
6x86MX (PR166 to PR233)
Cyrix
®
/IBM
®
6x86L (PR166+ to PR200+)
Cyrix
®
/IBM
®
6x86 (PR120+ to PR200+)
AMD K6 (PR2-166 to PR2-233)
AMD K5 (PR75 to PR166)
High Performance VXPROChipset
Supports 3.5, 3.2, 2.9, 2.8 & 2.5 volt CPUs with built-in switching voltage regulator
MEMORY
Up to 384MB of main memory in 4 (2 banks) auto banking 72-pin SIMM slots for Fast Page Mode
or EDO DRAM, and 2 168-pin DIMM sockets for SDRAM, Fast Page Mode DRAM, or EDO DRAM
modules.
CACHE
On-Board 512KB Pipeline Burst Cache
ENHANCED IDE CONTROLLER
Two PCI EIDE Interfaces for up to four EIDE devices in two channels. Individually supports PIO
Mode 0 to 4 for all four devices - all four devices may have different PIO modes and performance
will be optimized for each device
BUS ARCHITECTURE
Four 32-bit PCI Local Bus Slots with Master Mode
Three 16-bit ISA Bus Slots
ON-BOARD I/O CONTROLLER
On-Board Interfaces for High Speed Multi-I/Os
Two 16550 Fast Serial Ports
One SPP, EPP & ECP Mode Capable Parallel Port
One High Speed Floppy Drive Connector
One PS/2-type Mouse Header.
POWER MANAGEMENT FEATURES
SMM/SMI Power Management with APM Software Interface - monitor CPU and I/O status with fully
user configurable parameters in BIOS
BIOS FEATURES
Award Plug and Play Flash ROM for easy BIOS upgrades
Built-in NCR810 SCSI BIOS Firmware
*
PROCESSORS TESTED AT MANUALS RELEASE
PM8400B SPECIFICATIONS
CPU
CPU CLOCK
CLK MULTIPLIER DUAL VOLTAGE
TYPE PR# MHz JP3A JP3B JP3C CLOCK JP5A JP5B VALUE JP9A JP9B TYPE
JP3, JP5 & JP9 CPU Clock Speed Jumpers
75
90
100
120
133
150
166
180
200
166
200
233
100
110
120
133
150
133
150
150
166
188
75
100
90
100
150
166
166
200
233
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
2 - 3
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
2 - 3
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
PR120+
PR133+
PR150+
PR166+
PR200+
PR166+L
PR200+L
PR166
PR200
PR233
PR75
PR100
PR120
PR133
PR150
PR166
PR2-166
PR2-200
PR2-233
50MHz
60MHz
66MHz
60MHz
66MHz
60MHz
66MHz
60MHz
66MHz
66MHz
66MHz
66MHz
50MHz
55MHz
60MHz
66MHz
75MHz
66MHz
75MHz
60MHz
66MHz
75MHz
50MHz
66MHz
60MHz
66MHz
60MHz
66MHz
66MHz
66MHz
66MHz
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
1 - 2
1 - 2
2 - 3
1 - 2
2 - 3
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
2 - 3
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1.5X
1.5X
1.5X
2.0X
2.0X
2.5X
2.5X
3.0X
3.0X
2.5X
3.0X
3.5X
1
2.0X
2.0X
2.0X
2.0X
2.0X
2.0X
2.0X
2.5X
2.5X
2.5X
1.5X
1.5X
1.5X
1.5X
2.5X
2.5X
2.5X
3.0X
3.5X
1
2 - 3
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
1 - 2
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
2 - 3
1 - 2
2 - 3
2 - 3
1 - 2
2 - 3
1 - 2
2 - 3
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2- 3
2- 3
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
INTEL
®
PENTIUM
®
P54C
P54C
P54C
P54C
P54C
P54C
P54C
P54C
P54C
P54C
P55C
P55C
P55C
P54C
P54C
P54C
P54C
P54C
P55C
P55C
P55C
P55C
P55C
P54C
P54C
P54C
P54C
P54C
P54C
P55C
P55C
P55C
INTEL
®
PENTIUM
®
MMX
P55C
CYRIX
®
IBM
®
6x86
CYRIX
®
IBM
®
6x86L
CYRIX
®
IBM
®
6x86MX
AMD
K5
AMD
K6
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
2 - 3
1 - 2
1 - 2
1 - 2
JP6 CPU Voltage Regulator Output Jumpers
JP6A
JP6B
JP6C
JP6D
DESCRIPTION
SHORT
OPEN
OPEN
OPEN
3.5 Volts (P54C, 6x86, K5)
OPEN
SHORT
OPEN
OPEN
3.2 Volts (K6 PR2-233)
OPEN
OPEN
SHORT
OPEN
2.9 Volts (K6 PR2-166 & 200, 6x86L, M2)
OPEN
OPEN
OPEN
SHORT
2.8 Volts (P55C)
OPEN
OPEN
OPEN
OPEN
2.5 Volts
PM8400B CPU CLOCK SPEED & VOLTAGE SETTINGS
1
TO GET A 3.5X MULTIPLIER FOR THE INTEL & AMD 233MHZ PROCESSORS YOU WILL NEED TO SET THE JUMPER SETTINGS TO 1.5X; THE
SYSTEM BOARD WILL AUTOMATICALLY SET THE CLOCK MULTIPLIER TO 3.5X FOR THOSE PROCESSORS WHEN SET TO 1.5X
6-23-97