IBM CORPORATION
PC300 (TYPE 6263, 6265, 6275, 6285)
Device Type |
Mainboard |
Processor |
Pentium II/Celeron/Pentium III |
Processor Speed |
233/266/300/333/350/400/450MHz |
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 |
254mm x 218mm |
I/O Options (CPU) |
parallel port, PS/2 mouse port, serial ports (2), USB connectors (2), AGP slot |
I/O Options (riser card) |
32-bit PCI slots (2), wake on LAN connector, wake on modem connector, floppy drive interface, IDE interfaces (2), audio in - CD-ROM |
CONNECTIONS |
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Purpose |
Location |
Purpose |
Location |
VGA port |
CN1 |
USB connector 1 |
CN5 |
PS/2 mouse port |
CN2 |
USB connector 2 |
CN6 |
Serial port 1 |
CN3 |
Parallel port |
CN7 |
Serial port 2 |
CN4 |
Video memory module |
V1 |
USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
» |
CMOS memory normal operation |
J9 |
Pins 1 & 2 closed |
|
CMOS memory clear |
J9 |
Pins 2 & 3 closed |
» |
BIOS normal operation |
SW1/5 |
Off |
|
BIOS recovery mode |
SW1/5 |
On |
» |
Factory configured - do not alter |
SW1/6 |
Off |
» |
PAP disabled |
SW1/7 |
Off |
|
PAP enabled |
SW1/7 |
On |
» |
Floppy drive write protect disabled |
SW1/8 |
Off |
|
Floppy drive write protect enabled |
SW1/8 |
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 |
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 |
DIMM CONFIGURATION (CON'T) |
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Size |
Bank 0 |
Bank 1 |
Bank 2 |
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. 128KB cache is located on the Celeron 300A & 333 CPU. 512KB cache is located on the Pentium III CPU. |
VIDEO MEMORY CONFIGURATION |
Note: The size of the video memory is unidentified. |
CPU SPEED SELECTION (CELERON) |
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CPU speed |
Clock speed |
Multiplier |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
300MHz |
66MHz |
4.5x |
Off |
On |
Off |
On |
333MHz |
66MHz |
5x |
On |
Off |
Off |
On |
366MHz |
66MHz |
5.5x |
Off |
Off |
Off |
On |
433MHz |
66MHz |
6.5x |
Off |
On |
On |
Off |
CPU SPEED SELECTION (PENTIUM II) |
||||||
CPU speed |
Clock speed |
Multiplier |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
233MHz |
66MHz |
3.5x |
Off |
Off |
On |
On |
266MHz |
66MHz |
4x |
On |
On |
Off |
On |
300MHz |
66MHz |
4.5x |
Off |
On |
Off |
On |
333MHz |
66MHz |
5x |
On |
Off |
Off |
On |
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. |
CONNECTIONS |
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Purpose |
Location |
Purpose |
Location |
Front panel connector |
C1 |
Audio in - CD-ROM |
C8 |
Alert on LAN connector |
C2 |
IDE interface 1 |
CN1 |
Chassis fan power |
C3 |
IDE interface 2 |
CN2 |
Asset ID connector |
C4 |
Floppy drive interface |
CN3 |
Wake on LAN connector |
C5 |
Power connector |
P1 |
Wake on modem connector |
C6 |
32-bit PCI slots |
PC1 - PC3 |
SCSI interface LED |
C7 |
Riser slot |
SL1 |
Note: CN1 & P1 are located on the bottom side of the card. |