IBM CORPORATION
PC SERVER 520 (TYPE 8641) MODEL EZO, EZV, EZL, EZS, EZE
Processor |
Pentium |
Processor Speed |
90/100MHz |
Chip Set |
Unidentified |
Video Chip Set |
None |
Maximum Onboard Memory |
256MB |
Maximum Video Memory |
None |
Cache |
256/512KB |
BIOS |
Unidentified |
Dimensions |
355mm x 304mm |
I/O Options |
32-bit PCI slots (3), floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2) |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
PS/2 mouse port |
J6 |
Speaker |
W12 |
Parallel port |
J9 |
Power LED & keylock |
W18 |
Floppy drive interface |
J10 |
IDE interface LED |
W24 |
Serial port 1 |
J11 |
CPU fan power |
W35 |
Serial port 2 |
J12 |
CPU fan power |
W36 |
IDE interface |
J13 |
32-bit PCI slots |
PC1 – PC3 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
» |
Cache type select write back |
W1 |
Open |
Cache type select write through |
W1 |
Closed | |
» |
Factory configured - do not alter |
W2 |
Open |
» |
Factory configured - do not alter |
W10 |
Pins 2 & 3 closed |
» |
Factory configured - do not alter |
W11 |
Unidentified |
» |
Factory configured - do not alter |
W13 |
Unidentified |
» |
Factory configured - do not alter |
W14 |
Unidentified |
» |
Factory configured - do not alter |
W15 |
Unidentified |
» |
Factory configured - do not alter |
W16 |
Pins 1 & 2 closed |
» |
Factory configured - do not alter |
W17 |
Closed |
» |
Monitor type select color |
W20 |
Closed |
Monitor type select monochrome |
W20 |
Open | |
» |
Keyboard type select PS/2 |
W21 |
Closed |
Keyboard type select AT |
W21 |
Open | |
» |
Factory configured - do not alter |
W22 |
Open |
» |
Factory configured - do not alter |
W23 |
Open |
» |
IDE IRQ select IRQ14 |
W25 |
Pins 1 & 2 closed |
IDE IRQ select IRQ15 |
W25 |
Pins 2 & 3 closed | |
» |
Factory configured - do not alter |
W30 |
Open |
» |
Factory configured - do not alter |
W32 |
Unidentified |
» |
Factory configured - do not alter |
W33 |
Unidentified |
» |
Factory configured - do not alter |
W34 |
Unidentified |
» |
Factory configured - do not alter |
W37 |
Unidentified |
» |
Factory configured - do not alter |
W88 |
Unidentified |
» |
Factory configured - do not alter |
WU |
Unidentified |
SIMM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
8MB |
(2) 1M x 36 |
None |
None |
None |
16MB |
(2) 2M x 36 |
None |
None |
None |
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
None |
None |
24MB |
(2) 2M x 36 |
(2) 1M x 36 |
None |
None |
24MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
None |
32MB |
(2) 4M x 36 |
None |
None |
None |
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
None |
None |
32MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
40MB |
(2) 4M x 36 |
(2) 1M x 36 |
None |
None |
48MB |
(2) 4M x 36 |
(2) 2M x 36 |
None |
None |
48MB |
(2) 2M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
None |
64MB |
(2) 4M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
None |
64MB |
(2) 8M x 36 |
None |
None |
None |
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
None |
None |
64MB |
(2) 2M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
72MB |
(2) 8M x 36 |
(2) 1M x 36 |
None |
None |
80MB |
(2) 8M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
None |
80MB |
(2) 4M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
80MB |
(2) 8M x 36 |
(2) 2M x 36 |
None |
None |
88MB |
(2) 8M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
96MB |
(2) 8M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
None |
96MB |
(2) 8M x 36 |
(2) 4M x 36 |
None |
None |
96MB |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
None |
112MB |
(2) 8M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
128MB |
(2) 8M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
None |
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
None |
None |
128MB |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
160MB |
(2) 8M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
192MB |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
None |
256MB |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
CACHE CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
512KB |
(4) 64K x 8 |
(4) 64K x 8 |
CACHE JUMPER CONFIGURATION | |
Size |
W5 |
256KB |
Pins 1 & 2 closed |
512KB |
Pins 2 & 3 closed |
CPU SPEED SELECTION | |
Speed |
W6 |
90MHz |
Pins 1 & 2 closed |
100MHz |
Pins 2 & 3 closed |