IBM CORPORATION PC SERVER 520 (TYPE 8641) MODEL MZO, MZV, MZS, MZL, MZE Processor Pentium Processor Speed Unidentified Chip Set Unidentified Video Chip Set Unidentified Maximum Onboard Memory 256MB Maximum Video Memory Unidentified Cache 512KB BIOS Unidentified Dimensions 355mm x 304mm I/O Options 32-bit PCI slots (2), floppy drive interface, IDE interfaces (2), SCSI interface, Wide SCSI interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, cache slot NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location SCSI interface LED J2 Serial port 2 J21 IDE interface J3 Serial port 1 J24 Chassis fan power J4 Reset switch J25 Speaker J6 SCSI interface J28 CPU fan power J8 Wide SCSI interface J35 (internal) CPU fan power J9 Wide SCSI interface J39 (external) Power LED J10 VGA port J40 IDE interface J13 PS/2 mouse port J42 Parallel port J19 32-bit PCI slots PC1 -& PC2 Floppy drive J20 Cache slot SL1 interface USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not J3A Unidentified alter » Factory configured - do not J12 Open alter » Factory configured - do not J14 Unidentified alter » Password write enabled J15 Pins 2 & 3 closed Password write disabled J15 Pins 1 & 2 closed » Factory configured - do not J16 Unidentified alter (C2 cover) » Factory configured - do not J17 Unidentified alter (C2 keylock) » On board video enabled J26 Pins 1 & 2 closed On board video disabled J26 Pins 2 & 3 closed » On board SCSI enabled J27 Pins 1 & 2 closed On board SCSI disabled J27 Pins 2 & 3 closed 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 SIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 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 Note: The locations of the banks are unidentified. CACHE CONFIGURATION Size Bank 0 512KB 512KB module installed VIDEO MEMORY CONFIGURATION Note: The size & location of the video memory is unidentified. CPU CLOCK SPEED SELECTION Speed J43 50MHz Pins 2 & 3 closed 60MHz Pins 1 & 2 closed