IBM CORPORATION
PC 300 (TYPE 6561, 6591, 6872)
|
Device Type |
Mainboard |
|
Processor |
Pentium II/Celeron/Pentium III |
|
Processor Speed |
266/300/333/350/400/450MHz |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
384MB DRAM (EDO supported) |
|
Cache |
0/128/256/512 (located on the CPU) |
|
BIOS |
Unidentified |
|
Video Chip Set |
Unidentified |
|
I/O Options |
Parallel port, PS/2 mouse port, serial ports (2), video port, USB port (2), Ethernet RJ45 connector, audio line out, audio line in, microphone connector, AGP port |
|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
Video port |
CN1 |
Parallel port |
CN7 |
|
PS/2 mouse port |
CN2 |
Ethernet RJ-45 connector |
CN8 |
|
Serial port 1 |
CN3 |
Audio line in |
CN9 |
|
Serial port 2 |
CN4 |
Audio line out |
CN10 |
|
USB port 1 |
CN5 |
Microphone |
CN11 |
|
USB port 2 |
CN6 |
AGP port |
SL1 |
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Label |
Position |
|
|
» |
CMOS memory normal operation |
J9 |
Pins 1 & 2 closed |
|
CMOS memory clear |
J9 |
Pins 2 & 3 closed |
|
|
» |
Normal ROM operation |
SW1/5 |
Off |
|
ROM recovery mode |
SW1/5 |
On |
|
|
» |
Factory configured - do not alter |
SW1/6 |
Off |
|
» |
Password disabled |
SW1/7 |
Off |
|
Password enabled |
SW1/7 |
On |
|
|
» |
Disk write enabled |
SW1/8 |
Off |
|
Disk write protected |
SW1/8 |
On |
|
|
Note: Orientation of SW1 unidentified. |
|||
|
DRAM CONFIGURATION |
|||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
8MB |
(1) 1MB x 64 |
None |
None |
|
16MB |
(1) 1MB x 64 |
(1) 1MB x 64 |
None |
|
16MB |
(1) 2MB x 64 |
None |
None |
|
24MB |
(1) 1MB x 64 |
(1) 1MB x 64 |
(1) 1MB x 64 |
|
24MB |
(1) 2MB x 64 |
(1) 1MB x 64 |
None |
|
32MB |
(1) 4MB x 64 |
None |
None |
|
32MB |
(1) 2MB x 64 |
(1) 2MB x 64 |
None |
|
32MB |
(1) 2MB x 64 |
(1) 1MB x 64 |
(1) 1MB x 64 |
|
40MB |
(1) 4MB x 64 |
(1) 1MB x 64 |
|
|
40MB |
(1) 2MB x 64 |
(2) 2MB x 64 |
(1) 1MB x 64 |
|
48MB |
(1) 4MB x 64 |
(1) 2MB x 64 |
None |
|
48MB |
(1) 2MB x 64 |
(1) 2MB x 64 |
(1) 2MB x 64 |
|
48MB |
(1) 4MB x 64 |
(1) 1MB x 64 |
(1) 1MB x 64 |
|
56MB |
(1) 4MB x 64 |
(1) 2MB x 64 |
(1) 1MB x 64 |
|
64MB |
(1) 8MB x 64 |
None |
None |
|
64MB |
(1) 4MB x 64 |
(1) 4MB x 64 |
None |
|
64MB |
(1) 4MB x 64 |
(1) 2MB x 64 |
(1) 2MB x 64 |
|
72MB |
(1) 8MB x 64 |
(1) 1MB x 64 |
None |
|
72MB |
(1) 4MB x 64 |
(1) 4MB x 64 |
(1) 1MB x 64 |
|
80MB |
(1) 8MB x 64 |
(1) 2MB x 64 |
None |
|
80MB |
(1) 4MB x 64 |
(1) 4MB x 64 |
(1) 2MB x 64 |
|
80MB |
(1) 8MB x 64 |
(1) 1MB x 64 |
(1) 1MB x 64 |
|
88MB |
(1) 8MB x 64 |
(1) 2MB x 64 |
(1) 1MB x 64 |
|
96MB |
(1) 4MB x 64 |
(1) 4MB x 64 |
(1) 4MB x 64 |
|
96MB |
(1) 8MB x 64 |
(1) 4MB x 64 |
None |
|
96MB |
(1) 8MB x 64 |
(1) 2MB x 64 |
(1) 2MB x 64 |
|
104MB |
(1) 8MB x 64 |
(1) 4MB x 64 |
(1) 1MB x 64 |
|
112MB |
(1) 8MB x 64 |
(1) 4MB x 64 |
(1) 2MB x 64 |
|
128MB |
(1) 16MB x 64 |
None |
None |
|
128MB |
(1) 8MB x 64 |
(1) 8MB x 64 |
None |
|
128MB |
(1) 8MB x 64 |
(1) 4MB x 64 |
(1) 4MB x 64 |
|
136MB |
(1) 16MB x 64 |
(1) 1MB x 64 |
None |
|
136MB |
(1) 8MB x 64 |
(1) 8MB x 64 |
(1) 1MB x 64 |
|
144MB |
(1) 16MB x 64 |
(1) 2MB x 64 |
None |
|
144MB |
(1) 8MB x 64 |
(1) 8MB x 64 |
(1) 2MB x 64 |
|
144MB |
(1) 16MB x 64 |
(1) 1MB x 64 |
(1) 1MB x 64 |
|
152MB |
(1) 16MB x 64 |
(1) 2MB x 64 |
(1) 1MB x 64 |
|
160MB |
(1) 16MB x 64 |
(1) 4MB x 64 |
None |
|
160MB |
(1) 8MB x 64 |
(1) 8MB x 64 |
(1) 4MB x 64 |
|
160MB |
(1) 16MB x 64 |
(1) 2MB x 64 |
(1) 2MB x 64 |
|
168MB |
(1) 16MB x 64 |
(1) 4MB x 64 |
(1) 1MB x 64 |
|
176MB |
(1) 16MB x 64 |
(1) 4MB x 64 |
(1) 2MB x 64 |
|
192MB |
(1) 16MB x 64 |
(1) 8MBx 64 |
None |
|
192MB |
(1) 8MB x 64 |
(1) 8MB x 64 |
(1) 8MB x 64 |
|
192MB |
(1) 16MB x 64 |
(1) 4MB x 64 |
(1) 4MB x 64 |
|
200MB |
(1) 16MB x 64 |
(1) 8MB x 64 |
(1) 1MB x 64 |
|
208MB |
(1) 16MB x 64 |
(1) 8MB x 64 |
(1) 2MB x 64 |
|
224MB |
(1) 16MB x 64 |
(1) 8MB x 64 |
(1) 4MB x 64 |
|
256MB |
(1) 16MB x 64 |
(1) 16MB x 64 |
None |
|
256MB |
(1) 16MB x 64 |
(1) 8MB x 64 |
(1) 8MB x 64 |
|
264MB |
(1) 16MB x 64 |
(1) 16MB x 64 |
(1) 1MB x 64 |
|
272MB |
(1) 16MB x 64 |
(1) 16MB x 64 |
(1) 2MB x 64 |
|
288MB |
(1) 16MB x 64 |
(1) 16MB x 64 |
(1) 4MB x 64 |
|
320MB |
(1) 16MB x 64 |
(1) 16MB x 64 |
(1) 8MB x 64 |
|
384MB |
(1) 16MBx 64 |
(1) 16MB x 64 |
(1) 16MB x 64 |
|
CPU SPEED SELECTION (PENTIUM II) |
||||||
|
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 (CELERON) |
||||||
|
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 |
|
433MHz |
100MHz |
4.5x |
Off |
On |
On |
Off |