Monitor Power Management Control; Connectors; Memory Expansion Connector; Table F-5. Monitor Powerm - Compaq Deskpro EP 6233 Technical Reference Manual

Appendix F ATI RAGE PRO AGP Graphics Card
F.5

MONITOR POWER MANAGEMENT CONTROL

This controller provides monitor power control for monitors that conform to the VESA display
power management signaling (DPMS) protocol. This protocol defines different power
consumption conditions and uses the HSYNC and VSYNC signals to select a monitor's power
condition. Table F-5 lists the monitor power conditions.
Table F–5. Monitor Power Management Conditions
HSYNC VSYNC
Active Active
Active Inactive
Inactive Inactive
F.6

CONNECTORS

There are three connectors associated with the graphics subsystem; the display/monitor
connector, a multimedia connector (which includes the VESA Standard Feature Connector
(VSFC)), and a SODIMM connector for frame buffer memory expansion.
NOTE: The graphic card's edge connector mates with the AGP connector on the system
board. This interface is described in chapter 4.
F.6.1

MEMORY EXPANSION CONNECTOR

A memory expansion connector is included allowing the expansion of frame buffer memory. This
connector accepts an industry-standard 144-pin SODIMM. A 2-MB SGRAM module is installed
as standard to provide a total frame buffer memory of 4 megabytes.
F-6 Compaq Personal Computers
Table F-5.
Monitor Power Management Conditions
Power Mode Description
On Monitor is completely powered up. If activated, the inactivity
counter counts down during system inactivity and if allowed to
tiemout, generates an SMI to initiate the Suspend mode.
Suspend Monitor's high voltage section is turned off and CRT heater
(filament) voltage is reduced from 6.6 to 4.4 VDC. The Off mode
inactivity timer counts down from the preset value and if allowed to
timeout, another SMI is generated and serviced, resulting in the
monitor being placed into the Off mode. Wake up from Suspend
mode is typically a few seconds.
Off Monitor's high voltage section and heater circuitry is turned off.
Wake up from Off mode is a little longer than from Suspend.
Original - March 1998