Datasheet
Table Of Contents
- Intel® Desktop Boards D915GEV/D915GRF Technical Product Specification
- Revision History / Disclaimer
- Preface
- Contents
- 1 Product Description
- 1.1 PCI Bus Terminology Change
- 1.2 Overview
- 1.3 Online Support
- 1.4 Processor
- 1.5 System Memory
- 1.6 Intel® 915G Chipset
- 1.7 PCI Express Connectors
- 1.8 I/O Controller
- 1.9 Audio Subsystem
- 1.10 LAN Subsystem
- 1.11 Hardware Management Subsystem
- 1.12 Power Management
- 1.12.1 ACPI
- 1.12.2 Hardware Support
- 1.12.2.1 Power Connector
- 1.12.2.2 Fan Connectors
- 1.12.2.3 LAN Wake Capabilities
- 1.12.2.4 Instantly Available PC Technology
- 1.12.2.5 Resume on Ring
- 1.12.2.6 Wake from USB
- 1.12.2.7 Wake from PS/2 Devices
- 1.12.2.8 PME# Signal Wake-up Support
- 1.12.2.9 WAKE# Signal Wake-up Support
- 1.12.2.10 +5 V Standby Power Indicator LED
- 1.13 Trusted Platform Module
- 1.13.1 System Requirements
- 1.13.2 Warning of Potential Data Loss
- 1.13.3 Security Precautions
- 1.13.4 Trusted Platform Module Ownership
- 1.13.5 Enabling the Trusted Platform Module
- 1.13.6 Assuming Trusted Platform Module Ownership
- 1.13.7 Recovery Procedures
- 1.13.8 Clearing Trusted Platform Module Ownership
- 1.13.9 Software Support
- 2 Technical Reference
- 2.1 Introduction
- 2.2 Memory Resources
- 2.3 DMA Channels
- 2.4 Fixed I/O Map
- 2.5 PCI Configuration Space Map
- 2.6 Interrupts
- 2.7 PCI Conventional Interrupt Routing Map
- 2.8 Connectors
- 2.8.1 Back Panel Connectors
- 2.8.2 Component-side Connectors
- 2.9 Jumper Block
- 2.10 Mechanical Considerations
- 2.11 Electrical Considerations
- 2.12 Thermal Considerations
- 2.13 Reliability
- 2.14 Environmental
- 2.15 Regulatory Compliance
- 3 Overview of BIOS Features
- 4 Error Messages and Beep Codes

Product Description
23
1.6 Intel
®
915G Chipset
The Intel 915G chipset consists of the following devices:
•
Intel 82915G Graphics Memory Controller Hub (MCH) with Direct Media Interface (DMI)
interconnect
•
Intel 82801FB I/O Controller Hub (ICH6) with DMI interconnect
•
Firmware Hub (FWH)
The MCH is a centralized controller for the system bus, the memory bus, the PCI Express bus, and
the DMI interconnect. The ICH6 is a centralized controller for the board’s I/O paths. The FWH
provides the nonvolatile storage of the BIOS.
For information about Refer to
The Intel 915G chipset http://developer.intel.com/
Resources used by the chipset Chapter 2
1.6.1 Intel 915G Graphics Subsystem
The Intel 915G chipset contains two separate, mutually exclusive graphics options. Either the
GMA900 graphics controller (contained within the 82915G GMCH) is used, or a PCI Express x16
add-in card can be used. When a PCI Express x16 add-in card is installed, the GMA900 graphics
controller is disabled.
1.6.1.1 Intel
®
GMA900 Graphics Controller
The Intel
®
GMA900 graphics controller features the following:
• Integrated graphics controller
32 bpp (Bits Per Pixel) graphics engine
333 MHz core frequency
256-bit 2-D engine
32-bit 3-D engine
Motion video acceleration
Pixel Shader 2.0
4-pixel pipes
DirectX* 9.0 Hardware Acceleration
Software Vertex Shader
• Up to 2048 x 1536 at 75 Hz refresh
• With Advanced Digital Display 2 (ADD2) card support flat panel displays up to 2048 x 1536
at 75 Hz or digital CRTs/HDTV displays at 1920 x 1080 at 85 Hz
• High performance 3-D setup and render engine
• High quality/performance texture engine
• Display
Integrated 24-bit 400 MHz RAMDAC
DDC2B compliant interface