ACER, INC. ACERPOWER425SE/433E/466DE (J3 PROJECT) Processor 80486SX/80487SX/ODP486SX/80486DX/80486DX2/Pentium Overdrive/Pentium (depends on CPU card installed) Processor 25/33/40/50(internal)/50/66(internal)/66MHz Speed Chip Set Unidentified Max. Onboard 256MB DRAM Cache 64/128/256/1024KB (depends on CPU card installed) BIOS Unidentified Dimensions 330mm x 218mm I/O Options External CPU card, 32-bit VESA local bus slots (2), PS/2 mouse port NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse port CN1 Chassis fan power JJ1 SCSI interface LED J5 Chassis fan power JJ2 Speaker J6 32-bit VESA local SL1 & SL2 bus slots Optional mouse/keyboard J7 External CPU slot SL3 USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not alter JP5 N/A » Password disabled JP6 pins 2 & 3 closed Password enabled JP6 pins 1 & 2 closed » CMOS memory normal operation JP7 Open CMOS memory clear JP7 Closed » IRQ select IRQ11 JP8 pins 2 & 3 closed IRQ select IRQ10 JP8 pins 1 & 2 closed » Onboard buzzer enabled JP9 pins 1 & 2 closed External speaker enabled JP9 pins 2 & 3 closed DRAM CONFIGURATION (SYSTEM BOARD) Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (1) 1M x 36 NONE NONE NONE 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 4M x 36 NONE NONE NONE 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 NONE 24MB (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 NONE 28MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 28MB (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 36MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 NONE 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 40MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 40MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 52MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 16M x NONE NONE NONE 36 72MB (1) 1M x 36 (1) 1M x 36 (1) 16M x NONE 36 80MB (1) 4M x 36 (1) 16M x NONE NONE 36 84MB (1) 1M x 36 (1) 4M x 36 (1) 16M x NONE 36 84MB (1) 4M x 36 (1) 16M x (1) 1M x 36 NONE 36 88MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 16M x 36 88MB (1) 4M x 36 (1) 16M x (1) 1M x 36 (1) 1M x 36 36 96MB (1) 4M x 36 (1) 4M x 36 (1) 16M x NONE 36 96MB (1) 4M x 36 (1) 16M x (1) 4M x 36 NONE 36 100MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 16M x 36 100MB (1) 4M x 36 (1) 16M x (1) 4M x 36 (1) 1M x 36 36 DRAM CONFIGURATION (SYSTEM BOARD CON'T) Size Bank 0 Bank 1 Bank 2 Bank 3 112MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 16M x 36 112MB (1) 4M x 36 (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 128MB (1) 16M x 36 (1) 16M x 36 NONE NONE 132MB (1) 16M x 36 (1) 16M x 36 (1) 1M x 36 NONE 136MB (1) 1M x 36 (1) 1M x 36 (1) 16M x 36 (1) 16M x 36 136MB (1) 16M x 36 (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 144MB (1) 4M x 36 (1) 16M x 36 (1) 16M x 36 NONE 144MB (1) 16M x 36 (1) 16M x 36 (1) 4M x 36 NONE 148MB (1) 1M x 36 (1) 4M x 36 (1) 16M x 36 (1) 16M x 36 148MB (1) 16M x 36 (1) 16M x 36 (1) 4M x 36 (1) 1M x 36 160MB (1) 4M x 36 (1) 4M x 36 (1) 16M x 36 (1) 16M x 36 160MB (1) 4M x 36 (1) 16M x 36 (1) 4M x 36 (1) 16M x 36 160MB (1) 16M x 36 (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 192MB (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 NONE 208MB (1) 4M x 36 (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 208MB (1) 16M x 36 (1) 16M x 36 (1) 4M x 36 (1) 16M x 36 256MB (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 VESA WAIT STATE CONFIGURATION Wait states JP3 0 wait states pins 1 & 2 closed 1 wait state pins 2 & 3 closed BUS SPEED CONFIGURATION CPU speed JP4 <= 33MHz pins 1 & 2 closed > 33MHz pins 2 & 3 closed EXTERNAL BATTERY CONFIGURATION Type JP10 JP11 JP12 JP13 Dallas pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed Benchmarq pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed AIC-7770 CONFIGURATION Setting JP1 JP2 Installed Open Open Not installed Closed Closed [Image] USER CONFIGURABLE SETTINGS Function Jumper Position » LADS for VLB select 33MHz JP3 pins 1 & 2 closed LADS for VLB select 50MHz JP3 pins 2 & 3 closed » Factory configured - do not JP5 N/A alter » Factory configured - do not JP6 N/A alter » Factory configured - do not JP7 N/A alter » Local bus disabled JP10 pins 1 & 2 closed Local bus enabled JP10 pins 2 & 3 closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG TAG (DIRTY) 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 16K x 1 128KB (4) 32K x 8 NONE (1) 8K x 8 (1) 16K x 1 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 (1) 16K x 1 1MB (4) 128K x 8 (4) 128K x 8 (1) 128K x 8 (1) 64K x 1 Note: The orientation of the cache banks and TAG banks are unidentified. CACHE JUMPER CONFIGURATION Size JP11 JP12 JP13 JP14 JP18 JP19 JP20 64KB Open Open Open Open Open Open Open 128KB Closed Open Open Open Open Closed Open 256KB Closed Closed Open Open Open Closed Closed 1MB Closed Closed Closed Closed Closed Closed Closed CACHE BANK CONFIGURATION Type JP15 JP16 Single bank pins 1 & 2 closed pins 1 & 2 closed Double bank pins 2 & 3 closed pins 2 & 3 closed CPU SPEED CONFIGURATION Type JP1 JP2 JP8 JP9 25MHz Open Open pins 1 & 2 pins 1 & 2 closed closed 33MHz Open Closed pins 1 & 2 pins 2 & 3 closed closed 40MHz Closed Closed pins 2 & 3 pins 1 & 2 closed closed 50iMHz Open Open pins 1 & 2 pins 1 & 2 closed closed 50MHz Closed Closed pins 2 & 3 pins 2 & 3 closed closed 66iMHz Open Closed pins 1 & 2 pins 2 & 3 closed closed CPU TYPE CONFIGURATION Type JP4 80486SX pins 1 & 2 closed ODP486SX pins 2 & 3 closed 80487SX pins 2 & 3 closed 80486DX Open 80486DX2 Open Pentium Overdrive pins 2 & 3 closed BUS SPEED CONFIGURATION CPU speed JP17 <= 33MHz pins 1 & 2, 3 & 4 closed > 33MHz pins 2 & 3 closed [Image] USER CONFIGURABLE SETTINGS Function Jumper Position » Local bus disabled JP4 pins 2 & 3 closed Local bus enabled JP4 pins 1 & 2 closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG TAG (DIRTY) 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 (1) 16K x 1 1MB (4) 128K x 8 (4) 128K x 8 (1) 32K x 8 (1) 64K x 1 Note: The orientation of the cache banks and TAG banks are unidentified. The location of the TAG is unidentified. CACHE JUMPER CONFIGURATION Size JP11 JP12 JP14 JP15 256KB Open Open Open Open 1MB Closed Closed Closed Closed CPU FREQUENCY CONFIGURATION Speed JP1 JP2 JP3 33MHz pins 1 & 2 closed pins 1 & 2 closed pins 2 & 3 closed 40MHz pins 2 & 3 closed pins 2 & 3 closed pins 1 & 2 closed 50MHz pins 1 & 2 closed pins 2 & 3 closed pins 1 & 2 closed 66MHz pins 2 & 3 closed pins 1 & 2 closed pins 1 & 2 closed 80MHz pins 1 & 2 closed pins 1 & 2 closed pins 1 & 2 closed