PC Server 300 (Type 8640) Pentium® Board
1 Memory Connectors (J7, J8, J9, J10, J33 and J34)
2 IDE Hard Disk Drive LED Connector (W10)
SCSI Hard Disk Drive Adaptor Connector
3 Power LED Connector (W9)
4 Speaker Connector (J11)
5 Processor Socket
6 EISA Slots (J23, J24, J25, J26 and J27)
7 PCI Slots (J30, J31 and J32)
8 Mouse Port (J15)
9 Keyboard Port (J14)
10 Serial Port COM1 (J20)
11 Power Supply Connector P1 (J12)
12 Power Supply Connector P2 (J17)
13 Serial Port COM2 (J21)
14 Parallel Port (J18)
15 Real Time Clock socket
16 Diskette Drive Connector (J19)
17 Power Supply Connector P3 (J37)
18 IDE 2 Hard Disk Drive Connector (J22)
SCSI Hard Disk Drive Adapter Connector
System Board Jumper Settings
Parity Check
| Jumper |
Configuration |
Setting |
| J1 |
Pentium® parity check enabled (default)
Pentium® parity check disabled |
Installed
Not installed |
DRQ Selection
| Jumper |
Configuration |
Setting |
| W14 |
DRQ6
DRQ7 |
Pins 1-2
Pins 2-3 |
Secondary Cache Selection
| Jumper |
Configuration |
Setting |
| J40 |
5 volts for the Pentium®
5.3 volts for the Pentium® |
Installed : Jumper blocks (all pins)
Installed : Power module |
| J41 |
5.3 volts for ground |
Installed : Power module (ground) |
| J42 |
5.3 volts for ground |
Installed : Power module (ground) |
Selected Jumper Default Setting
| Jumper |
Default Setting |
| J3 |
Pins 2-3 |
| J4 |
Pins 1-2 |
| J35 |
Pins 1-2 |
Cache Selection
| Jumper |
Configuration |
Setting |
| J2 |
Pentium® write-through cache
Pentium® write-back cache (default) |
Installed
Not installed |
DACK Selection
| Jumper |
Configuration |
Setting |
| W16 |
DACK 6
DACK 7 |
Pins 1-2
Pins 2-3 |
Keyboard Selection
| Jumper |
Configuration |
Setting |
| W6 |
PS/2 Mouse installed (default)
PS/2 Mouse not installed |
Installed
Not installed |
Clock Selection
| Jumper |
Configuration |
Setting |
| J5 |
PS/2 Mouse installed (default)
PS/2 Mouse not installed |
Installed
Not installed |
Pentium® Clock Selection
| Jumper |
Configuration |
Setting |
| J6 |
Oscillator for U15 (default)
Clock synthesizer |
Pins 1-2
Pins 2-3 |
BIOS Mode Selection
| Jumper |
Configuration |
Setting |
| W2 |
Bios in boot recovery mode |
Pins 1-2 |
| W2 |
Bios in normal mode (default) |
Pins 2-3 |
Secondary Cache Selection
| Configuration |
J3 |
J4 |
J35 |
| No secondary cache |
Pins 1-2 |
Pins 1-2 |
--- |
| Reserved |
Pins 1-2 |
Pins 2-3 |
--- |
| 256KB secondary cache |
Pins 2-3 |
Pins 1-2 |
Pins 1-2 |
| 512KB secondary cache |
Pins 2-3 |
Pins 2-3 |
Pins 2-3 |
Jumper W17 IRQ Selection
| Selection |
Setting |
Redirect modified PCI interrupt to IRQ 5
Redirect modified PCI interrupt to IRQ 9
Redirect modified PCI interrupt to IRQ 10
Redirect modified PCI interrupt to IRQ 11
Redirect modified PCI interrupt to IRQ 15
Redirect modified PCI interrupt to IRQ 14 |
Pins 1-2
Pins 3-4
Pins 5-6
Pins 7-8
Pins 9-10
Pins 11-12 |
Reserved Jumpers
| Jumper |
Setting |
| W20 |
Pins 2-3 |
| J5 |
Installed |
| J6 |
Pins 1-2 |
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