IBM CORPORATION
PC 300 (TYPE 6277, 6287) PENTIUM II, PENTIUM III
|
Device Type |
Mainboard |
|
Processor |
Pentium II/Pentium III |
|
Processor Speed |
350/400/450MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Unidentified |
|
Maximum Onboard Memory |
384MB (SDRAM supported) |
|
Maximum Video Memory |
Unidentified |
|
Audio Chip Set |
Unidentified |
|
Cache |
256/512KB (located on the CPU) |
|
BIOS |
Unidentified |
|
Dimensions |
305mm x 244mm |
|
I/O Options |
32-bit PCI slots (3), floppy drive interface, game/MIDI port, IDE interfaces (2), parallel port, PS/2 mouse port, serial port, VGA port, USB connectors (2), ATX power connector, line in, line out, microphone in, audio in - CD-ROM, wake on LAN connector, wake on modem connector |
|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
ATX power connector |
ATX |
USB connector 1 |
CN5 |
|
Wake on modem connector |
C1 |
USB connector 2 |
CN6 |
|
Wake on LAN connector |
C2 |
PS/2 mouse port |
CN7 |
|
LED |
C3 |
Parallel port |
CN8 |
|
Soft off power supply |
C4 |
Serial port |
CN9 |
|
Audio in - CD-ROM |
C5 |
VGA port |
CN10 |
|
Speaker |
C6 |
IDE interface 1 |
CN11 |
|
Game/MIDI port |
CN1 |
IDE interface 2 |
CN12 |
|
Microphone in |
CN2 |
Floppy drive interface |
CN13 |
|
Line in |
CN3 |
32-bit PCI slots |
PC1 - PC3 |
|
Line out |
CN4 |
||
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Label |
Position |
|
|
» |
CMOS memory normal operation |
J1 |
Pins 1 & 2 closed |
|
CMOS memory clear |
J1 |
Pins 2 & 3 closed |
|
|
» |
Flash BIOS normal operation |
SW1/5 |
Off |
|
Flash BIOS recovery mode |
SW1/5 |
On |
|
|
» |
Floppy drive write protect disabled |
SW1/6 |
Off |
|
Floppy drive write protect enabled |
SW1/6 |
On |
|
|
DIMM CONFIGURATION |
|||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
8MB |
(1) 1M x 64 |
None |
None |
|
16MB |
(1) 2M x 64 |
None |
None |
|
16MB |
(1) 1M x 64 |
(1) 1M x 64 |
None |
|
24MB |
(1) 2M x 64 |
(1) 1M x 64 |
None |
|
24MB |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
|
32MB |
(1) 4M x 64 |
None |
None |
|
32MB |
(1) 2M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
|
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
None |
|
40MB |
(1) 4M x 64 |
(1) 1M x 64 |
None |
|
40MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 1M x 64 |
|
48MB |
(1) 4M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
|
48MB |
(1) 4M x 64 |
(1) 2M x 64 |
None |
|
48MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
|
56MB |
(1) 4M x 64 |
(1) 2M x 64 |
(1) 1M x 64 |
|
64MB |
(1) 8M x 64 |
None |
None |
|
64MB |
(1) 4M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
|
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
None |
|
72MB |
(1) 8M x 64 |
(1) 1M x 64 |
None |
|
72MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 1M x 64 |
|
80MB |
(1) 8M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
|
80MB |
(1) 8M x 64 |
(1) 2M x 64 |
None |
|
80MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 2M x 64 |
|
88MB |
(1) 8M x 64 |
(1) 2M x 64 |
(1) 1M x 64 |
|
96MB |
(1) 8M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
|
96MB |
(1) 8M x 64 |
(1) 4M x 64 |
None |
|
DIMM CONFIGURATION (CON'T) |
|||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
96MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
|
104MB |
(1) 8M x 64 |
(1) 4M x 64 |
(1) 1M x 64 |
|
112MB |
(1) 8M x 64 |
(1) 4M x 64 |
(1) 2M x 64 |
|
128MB |
(1) 16M x 64 |
None |
None |
|
128MB |
(1) 8M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
|
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
None |
|
136MB |
(1) 16M x 64 |
(1) 1M x 64 |
None |
|
136MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 1M x 64 |
|
144MB |
(1) 16M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
|
144MB |
(1) 16M x 64 |
(1) 2M x 64 |
None |
|
144MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 2M x 64 |
|
152MB |
(1) 16M x 64 |
(1) 2M x 64 |
(1) 1M x 64 |
|
160MB |
(1) 16M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
|
160MB |
(1) 16M x 64 |
(1) 4M x 64 |
None |
|
160MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 4M x 64 |
|
168MB |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 1M x 64 |
|
176MB |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 2M x 64 |
|
192MB |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
|
192MB |
(1) 16M x 64 |
(1) 8M x 64 |
None |
|
192MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
|
200MB |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 1M x 64 |
|
208MB |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 2M x 64 |
|
224MB |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 4M x 64 |
|
256MB |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
|
384MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
|
Note: Board accepts SDRAM memory. |
|||
|
CACHE CONFIGURATION |
|
Note: 256KB/512KB cache is located on the Pentium II CPU. 512KB cache is located on the Pentium III CPU. |
|
VIDEO MEMORY CONFIGURATION |
|
Note: The size and location of the video memory is unidentified. |
|
CPU SPEED SELECTION (PENTIUM II) |
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|
CPU speed |
Clock speed |
Multiplier |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
|
350MHz |
100MHz |
3.5x |
Off |
Off |
On |
On |
|
400MHz |
100MHz |
4x |
On |
On |
Off |
On |
|
450MHz |
100MHz |
4.5x |
Off |
On |
Off |
On |
|
CPU SPEED SELECTION (PENTIUM III) |
|
Note: No switch settings are required for the Pentium III CPU. |