PC-300 / 6263, 6265, 6275, 6285 Pentium® II, Pentium® III, Celeron™ - System Board
PC-300 / 6263, 6265, 6275, 6285 Pentium® II, Pentium® III, Celeron
System Board Jumper, Switch, and Connectors
1 Battery
2 Switch SW1
3 Microprocessor Socket
4 DIMM Socket 0
5 DIMM Socket 1
6 DIMM Socket 2
7 CMOS Clear Jumper (J9)
8 Video Memory Connector
9 Display Connector
10 Mouse / Keyboard Connector
(top = Mouse / bottom = Keyboard)
11 Serial Connectors
(top = Serial port 2 / bottom = Serial port 1)
12 USB Connectors
(top = USB port 2 / bottom = USB port 1)
13 Parallel Connector
The following tables contains the switch settings.
(D) indicates the default setting.
CMOS Reset (J9)
| Jumper |
Setting |
Description |
| CMOS Reset |
2-3 |
CMOS reset |
| Normal Work |
1-2 |
Normal |
Pentium® III processors do not require speed settings.
For Pentium® III processors, you can ignore the speed settings.
Pentium® II - Processor Speed Switch Setting (SW1 1-4)
CPU
Switch
Settings |
SW1 - 1 |
SW1 - 2 |
SW1 - 3 |
SW1 - 4 |
| 233/66 MHz |
Off |
Off |
ON |
ON |
| 266/66 MHz |
ON |
ON |
Off |
ON |
| 300/66 MHz |
Off |
ON |
Off |
ON |
| 333/66 MHz |
ON |
Off |
Off |
ON |
| 350/100 MHz |
Off |
Off |
ON |
ON |
| 400/100 MHz |
ON |
ON |
Off |
ON |
| 450/100 MHz |
Off |
ON |
Off |
On |
Celeron™ - Processor Speed Switch Setting (SW1 1-4)
CPU
Switch
Settings |
SW1 - 1 |
SW1 - 2 |
SW1 - 3 |
SW1 - 4 |
| 300 MHz |
Off |
ON |
Off |
ON |
| 333 MHz |
ON |
Off |
Off |
ON |
| 366 MHz |
Off |
Off |
Off |
ON |
| 433 MHz |
Off |
ON |
ON |
Off |
ROM Operation Switch (SW1-5)
| ROM Operation |
SW1-5 |
| ROM Recovery Mode |
ON |
| Normal ROM Operation |
Off (D) |
Reserved Switch (SW1-6)
| Reserved |
SW1-6 |
| Reserved |
Off (D) |
Privilege Access Password (PAP) Switch (SW1-7)
| PAP |
SW1-7 |
| Disable |
Off (D) |
| Enable |
On |
Diskette Write Access Switch (SW1-8)
| Diskette Access |
SW1-8 |
| Write Enabled |
Off (D) |
| Write Disabled |
On |
Supported Memory Configurations
DIMM sizes of 16MB, 32MB, 64MB, and 128MB are acceptable. Start filling
DIMM socket 0, then 1, then 2. Use 3.3V unbuffered 100MHz SDRAM Non-Registered
DIMMs only. Non-parity or ECC DIMMs are supported. Install only ECC DIMMs to
enable ECC.
See > 
'System Board Memory' for DIMM size, speed,
and type.
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