IBM CORPORATION
PC SERVER 300 (TYPE 8640) ONO, 1NO, 1NJ, ONJ
|
Processor |
80486SX/80486DX/80486DX2/80486DX4/P24T |
|
Processor Speed |
25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB |
|
Maximum Video Memory |
None |
|
Cache |
128/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
355mm x 304mm |
|
I/O Options |
32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
PS/2 mouse port |
J2 |
IDE interface 1 |
J21 |
|
Speaker |
J5 |
IDE interface 2 |
J22 |
|
Parallel port |
J8 |
Power LED |
W12 |
|
Floppy drive interface |
J9 |
PCI IDE interface LED |
W39 |
|
Serial port 2 |
J10 |
ISA IDE interface LED |
W46 |
|
Serial port 1 |
J11 |
32-bit PCI slots |
PC1 – PC3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
» |
Secondary cache write select write back |
W1 |
Pins 2 & 3 closed |
|
Secondary cache write select write through |
W1 |
Pins 1 & 2 closed | |
|
» |
Internal cache write select write through |
W4 |
Open |
|
Internal cache write select write back |
W4 |
Closed | |
|
» |
BIOS normal operation |
W6 |
Pins 2 & 3 closed |
|
BIOS recovery mode |
W6 |
Pins 1 & 2 closed | |
|
» |
Factory configured - do not alter |
W8 |
Closed |
|
» |
PS/2 mouse enabled |
W10 |
Closed |
|
PS/2 mouse disabled |
W10 |
Open | |
|
DPU generates parity |
W17 |
Pins 1 & 2 closed | |
|
CPU generates parity |
W17 |
Pins 2 & 3 closed | |
|
» |
DPU parity error disabled |
W18 |
Pins 2 & 3 closed |
|
DPU parity error enabled |
W18 |
Pins 1 & 2 closed | |
|
» |
Cache enabled |
W21 |
Open |
|
Cache disabled |
W21 |
Closed | |
|
» |
PCI IDE IRQ14 enabled |
W35 |
Closed |
|
PCI IDE IRQ14 disabled |
W35 |
Open | |
|
» |
PCI IDE PCI INT A disabled |
W37 |
Closed |
|
PCI IDE PCI INT A enabled |
W37 |
Open | |
|
» |
PCI IRQ15 disabled |
W38 |
Open |
|
PCI IRQ15 enabled |
W38 |
Closed | |
|
ISA IDE IRQ select IRQ14 |
W42 |
Pins 1 & 2 closed | |
|
ISA IDE IRQ select IRQ15 |
W42 |
Pins 2 & 3 closed | |
|
SIMM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
8MB |
(1) 2M x 36 |
None |
None |
None |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
None |
None |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
12MB |
(1) 1M x 36 |
(1) 2M x 36 |
None |
None |
|
16MB |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
None |
None |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
None |
None |
|
20MB |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
24MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
24MB |
(1) 4M x 36 |
(1) 2M x 36 |
None |
None |
|
24MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
|
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 8M x 36 |
None |
None |
None |
|
32MB |
(1) 4M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
|
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
36MB |
(1) 8M x 36 |
(1) 1M x 36 |
None |
None |
|
40MB |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
40MB |
(1) 8M x 36 |
(1) 2M x 36 |
None |
None |
|
40MB |
(1) 4M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
44MB |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
48MB |
(1) 8M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
|
48MB |
(1) 8M x 36 |
(1) 4M x 36 |
None |
None |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
56MB |
(1) 8M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
64MB |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
None |
None |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
80MB |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
96MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
None |
|
112MB |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
128MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
CACHE CONFIGURATION |
|
Note: The location of the cache is unidentified. |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
W5 |
W22 |
W23 |
|
128KB |
Open |
Closed |
Open |
|
256KB |
Closed |
Open |
Closed |
|
TAG CONFIGURATION | |||
|
Type |
W24 |
W26 | |
|
7-bit |
Open |
Closed | |
|
8-bit |
Closed |
Closed | |
| » |
9-bit |
Closed |
Open |
|
Reserved |
Open |
Open | |
|
CPU SPEED SELECTION | ||
|
Speed |
W16 |
W20 |
|
25MHz |
Open |
Closed |
|
33MHz |
Closed |
Open |
|
50iMHz |
Open |
Closed |
|
66iMHz |
Closed |
Open |
|
75iMHz |
Open |
Closed |
|
100iMHz |
Closed |
Open |
|
CPU TYPE SELECTION | ||
|
Type |
W2 |
W3 |
|
80486SX |
Pins 2 & 3 closed |
Closed |
|
80486DX |
Pins 1 & 2, 3 & 4 closed |
Closed |
|
80486DX2 |
Pins 1 & 2, 3 & 4 closed |
Closed |
|
80486DX4 |
Pins 1 & 2, 3 & 4 closed |
Closed |
|
P24T |
Pins 1 & 2, 3 & 4 closed |
Open |
|
CPU MULTIPLIER SELECTION | |
|
Multiplier |
W33 |
|
80486DX4 |
Pins 1 & 2 closed |
|
80486DX4 (2x) |
Pins 2 & 3 closed |
|
80486SX/DX/DX2/DX4 (3x) |
Open |
|
IDE DMA CHANNEL SELECTION | ||
|
Channel |
W43 | |
| » |
PIO transfer |
Open |
|
6 |
Pins 1 & 2 closed | |
|
7 |
Pins 2 & 3 closed | |
|
PCI IRQ JUMPER SELECTION |
|
Note: The jumper settings for J101 are unidentified. |