Chapter 1 – System Board 1-1Chapter 1 System Board1.1 FeaturesThe AcerAltos 9100B Series is a dual-processor system board built on an ATXbaseboard that supports the Intel Pentium II CPU processor running at 350/100MHz and 400/100 MHz. The 9100b Server is based on Intel's 440BX chip set andtakes advantage of 100 MHz Front Side Bus architecture. It contains an exclusiveconnector for the CPU board that carries two slots for the Pentium II CPUmodules.The host bus interface supports a Pentium II processor with 100 MHz busfrequency. It also supports synchronous DRAM (SDRAM) DIMMs.The AcerAltos 9100B Series supports PCI IDE, and enhanced powermanagement. It also supports Ultra DMA/33 synchronous DMA-compatibledevices.A 50-pin Fast SCSI (Small Computer System Interface) and a 68-pin Ultra WideSCSI comes with the AcerAltos 9100B Series to connect SCSI devices. Wide SCSIsupports 16-bit transfers while fast SCSI uses a 8-bit bus that doubles the clockrate to support data rates of 40 Mb/s.The AcerAltos 9100B Series system board and other standard features such astwo UART NS16C550 serial ports, one parallel port with Enhanced Parallel Port(EPP)/Extended Capabilities Port (ECP) features, a diskette drive interface, andtwo embedded hard disk interfaces. The board also includes a built-in 10/100Mb/s Intel 82557 network interface controller, and a PCI video controller with 1Mb of memory.
