Intel BONANZA S478 I875 ATX DDR BLKD875PBZLK Manual Do Utilizador

Códigos do produto
BLKD875PBZLK
Página de 132
Product Description 
  
29 
1.7.1 AGP 
The AGP connector supports the following: 
•  4x, 8x AGP 3.0 add-in cards with 0.8 V I/O 
•  1x, 4x AGP 2.0 add-in cards with 1.5 V I/O 
AGP is a high-performance interface for graphics-intensive applications, such as 3D applications. 
While based on the PCI Local Bus Specification, Rev. 2.2, AGP is independent of the PCI bus and 
is intended for exclusive use with graphical display devices.  AGP overcomes certain limitations of 
the PCI bus related to handling large amounts of graphics data with the following features: 
•  Pipelined memory read and write operations that hide memory access latency 
•  Demultiplexing of address and data on the bus for nearly 100 percent efficiency 
INTEGRATOR’S NOTES 
•  AGP 2x operation is not supported. 
•  Install memory in the DIMM sockets prior to installing the AGP video card to avoid 
interference with the memory retention mechanism. 
•  The AGP connector is keyed for Universal 0.8 V AGP 3.0 cards or 1.5 V AGP 2.0 cards only.  
Do not attempt to install a legacy 3.3 V AGP card.  The AGP connector is not mechanically 
compatible with legacy 3.3 V AGP cards. 
 
For information about  
Refer to 
The location of the AGP connector 
Figure 1, page 14 
Obtaining the Accelerated Graphics Port Interface Specification 
Section 1.4, page 17 
1.7.2 USB 
The Desktop Board D875PBZ supports up to eight USB 2.0 ports, supports UHCI and EHCI, and 
uses UHCI- and EHCI-compatible drivers. 
The ICH5-R provides the USB controller for all ports.  The port arrangement is as follows: 
•  Four ports are implemented with stacked back panel connectors, adjacent to the PS/2 
connectors 
•  Two ports are implemented with stacked back panel connectors, adjacent to the audio 
connectors 
•  Two ports are routed to the front panel USB connector 
 
NOTES 
•  Computer systems that have an unshielded cable attached to a USB port may not meet FCC 
Class B requirements, even if no device is attached to the cable.  Use shielded cable that meets 
the requirements for full-speed devices. 
•  Native USB 2.0 support has been tested with drivers for Windows 2000 (with Service Pack 3) 
and Windows XP (with Service Pack 1) and is not currently supported by any other operating 
system.  Check Intel’s Desktop Board website for possible driver updates for other operating 
systems.