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 [Image] 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 W1 Closed through » Factory configured - do not W2 Open alter » Factory configured - do not W10 Pins 2 & 3 closed alter » Factory configured - do not W11 Unidentified alter » Factory configured - do not W13 Unidentified alter » Factory configured - do not W14 Unidentified alter » Factory configured - do not W15 Unidentified alter » Factory configured - do not W16 Pins 1 & 2 closed alter » Factory configured - do not W17 Closed alter » 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 W22 Open alter » Factory configured - do not W23 Open alter » IDE IRQ select IRQ14 W25 Pins 1 & 2 closed IDE IRQ select IRQ15 W25 Pins 2 & 3 closed » Factory configured - do not W30 Open alter » Factory configured - do not W32 Unidentified alter » Factory configured - do not W33 Unidentified alter » Factory configured - do not W34 Unidentified alter » Factory configured - do not W37 Unidentified alter » Factory configured - do not W88 Unidentified alter » Factory configured - do not WU Unidentified alter 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