Intel 740 User Manual

3 Device AGP MotherBoard Design
3-6
Intel740™ Graphics Accelerator Design Guide
3.1.5 State Diagrams
At system RESET, the Intel740™ graphics controller on the motherboard is always put into the
low power state. The following are examples in which the on board device shall remain in low
power state:
•
AGP add-in card is present
•
PCI or ISA graphics device is the primary and only graphics device desired
•
Multimonitor configurations not utilizing the on board graphics device.
Note: When not in use, both GPO27 and GPO28 should be driven high (1).
The Intel740 graphics controller down on the motherboard enters the low power mode at system
reset. If an enabling event occurs, the device enters the functional mode from the low power mode
(See Figure 3-5).
The following are examples in which functional mode would be invoked:
•
Intel740™ graphics accelerator as the primary and only graphics device
•
Multimonitor configurations utilizing the Intel740™ graphics controller
Figure 3-4. Intel740™ Graphics Controller (On Board Device) Remains in Low Power Mode
System
Reset
Low Power
Mode
Figure 3-5. Intel740™ Graphics Controller (On Board Device) State Diagram
System
Reset
Functional
Mode
Low Power
Mode

Intel 740 Specifications

General

Brand	Intel
Model	740
Category	Video Card
Language	English