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The P4X4-ALH Mainboard
Page 8
USB2.0 Ports
USB allows data exchange between your computer and a wide range of
simultaneously accessible external Plug and Play peripherals. The mainboard is
equipped with six USB (version 2.0) connectors. USB1 and USB2 are external
connectors. They can be found on the PC 99 ATX connector. The other USB
connectors are internal connectors and can be used to connect other USB
devices. (Cables for the internal connectors are sold separately).
Introduction
Connectors
• Two IDE connectors (support ATA 33/66/100/133)
• One Floppy Drive connector supports up to two 2.88 MB floppy drives
• One 20-pin ATX power supply connector
• One 2x2 ATX 12V power supply connector
• One 1x4 AUX12V power supply connector
• Two fan connectors
• One CD-IN connector
• One AUX-IN connector
• One WOL (Wake-On-LAN) connector
• One Front Audio connector
• One 4-Channel out connector
• One S/PDIF connector (optional)
• One IR connector (optional)
ATX Double Deck Ports (PC 99 color-coded connectors)
• Two USB2.0 ports
• Two external DB-9 serial port connectors: COM 1, COM 2 (UART)
• One SPP/ECP/EPP DB-25 parallel port
• One mini-DIN-6 PS/2 mouse port
• One mini-DIN-6 PS/2 keyboard port
• One GAME port
• One LAN port (RJ-45) connector
• Three audio jacks: SPK-OUT/FRONT SPK-OUT, LINE-IN and MIC-IN
PCI Bus Master IDE Controller
• Two PCI IDE interfaces support up to four IDE devices.
• This mainboard supports ATA 33/66/100/133 hard drives.
• PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up to
16.6MB/sec.).
• Bus mastering reduces CPU utilization during disk transfer.
• Supports ATAPI CD-ROM, LS-120 and ZIP.
Please note that the PIN assignment of the internal USB 2.0 connectors (CN30,
CN31, CN32 and CN38) are follow the specifications of Intel standard.