DIGITAL EQUIPMENT CORPORATION ALPHAPC64 Processor Alpha Processor Speed 200/233/275MHz Chip Set DEC Video Chip Set None Maximum Onboard Memory 512MB Maximum Video Memory None Cache 512/1024/2048/4096/8192KB BIOS Unidentified Dimensions 330mm x 221mm I/O Options 32-bit PCI slots (4), floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), cache slots (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Chassis fan J1 IDE interface J26 power Chassis fan J14 Serial port 2 J30 power Reset switch J3/pins 28 & 30 Serial port 1 J32 IDE interface J3/pins 29 & 31 PS/2 mouse port J34 LED Power LED & J3/pins 32-bit PCI PC1 – PC4 keylock 32,34,36,38,40 slots Speaker J3/pins 33, 35, 37, Cache slot SL1 39 Floppy drive J24 Cache slot SL2 interface Parallel port J25 USER CONFIGURABLE SETTINGS Function Label Position » SROM test connector J2 N/A » Flash BIOS update disabled J16 Pins 2 & 3 closed Flash BIOS update enabled J16 Pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 16MB (2) 512K x (2) 512K x (2) 512K x (2) 512K x 36 36 36 36 16MB (2) 1M x 36 (2) 1M x 36 None None 24MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 None 32MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 32MB (2) 4M x 36 None None None 64MB (2) 4M x 36 (2) 4M x 36 None None 64MB (2) 8M x 36 None None None 96MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 None 128MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 None None 128MB (2) 16M x 36 None None None 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 256MB (2) 16M x 36 (2) 16M x 36 None None 384MB (2) 16M x 36 (2) 16M x 36 (2) 16M x 36 None 512MB (2) 16M x 36 (2) 16M x 36 (2) 16M x 36 (2) 16M x 36 CACHE CONFIGURATION Size SL1 SL2 512KB 256KB 256KB 2MB 1MB 1MB 8MB 4MB 4MB Note: The sizes of the cache modules are unidentified. CACHE JUMPER CONFIGURATION Size J3/pins 11 & 12 J3/pins 13 & 14 J3/pins 15 & 16 None Closed Closed Closed 512KB Open Closed Closed 1MB Closed Open Closed 2MB Open Open Closed 4MB Closed Closed Open 8MB Open Closed Open CACHE ADDRESS CONFIGURATION Size J15/pins 1 & J3/pins 3 & J3/pins5 & 6 J3/pins7 & 8 2 4 512KB Open Open Open Open 1MB Closed Open Open Open 2MB Closed Closed Open Open 4MB Closed Closed Closed Open 8MB Closed Closed Closed Closed CACHE SPEED CONFIGURATION Speed J3/pins 17 & 18 J3/pins 19 & 20 J3/pins 21 & 22 6ns Open Closed Closed 8ns Closed Open Closed 10ns Open Open Closed 12ns Closed Closed Open 15ns Open Closed Open CPU DIVISOR SELECTION Divisor J3/pins 1 & J3/pins 3 & J3/pins 5 & J3/pins 7 & 2 4 6 8 2 Closed Closed Closed Closed 3 Closed Closed Closed Open 4 Closed Closed Open Closed 5 Closed Closed Open Open 6 (200MHz) Closed Open Closed Closed 7 (233MHz) Closed Open Closed Open 8 Closed Open Open Closed 9 (275MHz) Closed Open Open Open 10 Open Closed Closed Closed 11 Open Closed Closed Open 12 Open Closed Open Closed 13 Open Closed Open Open 14 Open Open Closed Closed 15 Open Open Closed Open 16 Open Open Open Closed 17 Open Open Open Open