ECS SI56P AVIO Socket 7 AT motherboard 4 ISA and 50 similar items

ECS SI56P AVIO "Picture is for representation only. Not a picture of the actual item" Socket 7 AT board. SIS 5513 chipset. Supports up to Pentium 166. 4 SIMM sockets, 3PCI and 4ISA slots. Award BIOS. AT form factor. 13" x 8.5". Motherboard only. No manual, no cables. ELITEGROUP COMPUTER SYSTEMS, INC. SI56P AVIO ProcessorCX M1/PentiumProcessor Speed75/90/100/120/133/150/166MHzChip SetSISVideo Chip SetNoneMaximum Onboard Memory128MB (EDO supported)Maximum Video MemoryNoneCache256/512/1024KBBIOSUnidentifiedDimensions330mm x 218mmI/O Options32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), serial port, VGA feature connector, VGA interface, IR connector, VRM connectorNPU OptionsNone CONNECTIONS Purpose Location Purpose Location PS/2 mouse interface J1 External battery J15 VGA feature connector J5 Turbo LED J16 pins 2 3 VGA interface J6 Green PC connector J16 pins 4 5 Floppy drive interface J8 Turbo switch J16 pins 6 7 IDE interface LED J9 Reset switch J16 pins 9 10 Serial port 2 J10 Power LED keylock J16 pins 11 - 15 Serial port 1 J11 Speaker J16 pins 17 - 20 IDE interface 1 J12 Chassis fan power J26 Parallel port J13 IR connector (optional) JP8 IDE interface 2 J14 32-bit PCI slots PC1 - PC3 USER CONFIGURABLE SETTINGS Function Label Position Super I/O enabled JP11 Open Super I/O disabled JP11 Closed Flash BIOS voltage select 5v JP25 Pins 1 2 closed Flash BIOS voltage select 12v JP25 Pins 2 3 closed CMOS memory normal operation JP26 Open CMOS memory clear JP26 Closed On board video enabled JP27 Closed On board video disabled JP27 Open DRAM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 36 None 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 24MB (2) 2M x 36 (2) 1M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 40MB (2) 4M x 36 (2) 1M x 36 48MB (2) 4M x 36 (2) 2M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 Note: Board accepts EDO memory. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 256KB (A) (2) 32K x 32 None (1) 32K x 8 256KB (B) None (8) 32K x 8 (1) 32K x 8 512KB None (8) 64K x 8 (1) 32K x 8 1MB None (8) 128K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP6 JP7 256KB (A) Pins 1 2 closed Pins 1 2 closed 256KB (B) Pins 1 2 closed Pins 1 2 closed 512KB Pins 2 3 closed Pins 1 2 closed 1MB Pins 2 3 closed Pins 2 3 closed CACHE TYPE CONFIGURATION Size JP1 JP2 Mixed Pins 2 3 closed Pins 2 3 closed Pure Pins 1 2 closed Pins 1 2 closed CPU SPEED SELECTION (CYRIX) CPU speed Clock speed Multiplier JP15 JP22 JP24 120MHz 50MHz 2x 1 2 Open Closed 150MHz 60MHz 2x 3 4 Open Closed 166MHz 66MHz 2x 1 2, 3 4 Open Closed Note: Pins designated should be in the closed position. CPU SPEED SELECTION (INTEL) CPU speed Clock speed Multiplier JP15 JP22 JP24 75MHz 50MHz 1.5x 1 2 Open Open 90MHz 60MHz 1.5x 3 4 Open Open 100MHz 66MHz 1.5x 1 2, 3 4 Open Open 120MHz 60MHz 2x 3 4 Open Closed 133MHz 66MHz 2x 1 2, 3 4 Open Closed 150MHz 60MHz 2.5x 3 4 Closed Closed 166MHz 66MHz 2.5x 1 2, 3 4 Closed Closed Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION Voltage JP16 3.3v (STD) Pins 1 2 closed 3.385v (VR) Pins 3 4 closed 3.525v (VRE) Pins 5 6 closed DMA CHANNEL SELECTION Channel JP12 JP13 1 Pins 1 2 closed Pins 1 2 closed 3 Pins 2 3 closed Pins 2 3 closed