dc7900 Sff Cpu Support - Compaq Convertible Minitower PC

dc7900 Sff Cpu Support

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Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers


Page 39
... PCI Connector Slot 2 REQ1/GNT1 PCI Connector Slot 3 REQ2/GNT2 Note [1] [1] [2] NOTE: [1] SFF and CMT form factors only. [2] CMT form factor only PCI bus arbitration is not needed and the ... layer and generates request packets for the purpose of the system controller component). System Support The PCI bus supports a bus master/target arbitration scheme. Table 4-2. Table 4-2 shows the grant and request... a high-performace extension of the transaction with PCI 2.3 and earlier versions so that most CPU-to use. When a PCI device needs access to the PCI bus (and does not ...
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Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers


Page 44
...B D A C D PIRQ G C B A PIRQ H D C B NOTES: [1] SFF and CMT only [2] CMT only The PCI interrupts can be configured by PCI Configuration Registers 60h..63h to share the standard ISA interrupts (IRQn). ✎ The APIC mode is supported by Windows NT, Windows 2000, and Windows XP, and Windows Vista...tasks. Although the DMA method has been traditionally used to transfer blocks of CPU interactions with memory, freeing the CPU for the Intel 82801 ICH10 I /O device, PCI devices may also use DMA operation as well. System Support System Board Connector PCI slot 1 (J20) [1] PCI slot 2 (J21...
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Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers


Page 56
Input/Output Interfaces 5.3 Diskette Drive Interface The SFF and CMT form factors support a diskette drive through a standard 34-pin diskette drive connector. The diskette drive interface function is integrated into the super I /O controller is in series from the CPU to and from the system. ■ Execution phase-The controller carries out the command. ...system. signals for the diskette drive controller and must be followed by DMA, using the DRQ2 and DACK2- The Results phase consists of the CPU reading a series of status bytes (from the controller to the diskette drive controller.
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Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers


Page 59
...mode can provide data transfers up to 150 KB/s. Input/Output Interfaces 5.5 Parallel Interface Support The SFF and CMT form factors include a system board header (J50) that supports an optional parallel bracket/cable assembly that can be initialized for ECP mode, a ...negotiation phase is entered to detect whether or not the connected peripheral is compatible with EPP mode. In the compatible mode, CPU write data is supported...

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We have the following 22 documents available for the Compaq dc7900:
  • Service Reference Guide: HP Compaq dc7900 Business PC
  • Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
  • HP ProtectTools User Guide
  • Troubleshooting Guide
  • Hardware Reference Guide - dc7900 Series Convertible Minitower
  • Desktop Management Guide
  • vPro Setup and Configuration for the dc7900p Business PC with Intel vPro Processor Technology
  • Support Telephone Numbers
  • Safety and Regulatory Information Desktops, Thin Clients, and Personal Workstations
  • Building a Common Image - Developing a common software image for the HP dc7900, Elite 8000 and 6000 Pro desktop models
  • BIOS Flash Q&A White Paper
  • 12 More!
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