IEI Technology IMBA-XQ354, User Manual

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IMBA-XQ354 Motherboard
Page 15
2.5.4.1 VGA Display Capabilities
A single external female DB-15 (VGA) connector interfaces an analog display to an analog
CRT port on the Intel® Q35Intel® Q35 GMCH.
Some of the capabilities of the Intel® Q35Intel® Q35 analog CRT port are listed below:

400 MHz Integrated 24-bit RAMDAC

Up to 2048 x 1536 @ 75 Hz refresh

Hardware Color Cursor Support

DDC2B Compliant Interface
2.5.5 Direct Media Interface (DMI)
The Direct Media Interface (DMI) is the communication bus between the Intel® Q35Intel®
Q35 GMCH and the ICH9DO I/O controller hub (ICH). The DMI is a high-speed interface
that integrates advanced priority-based servicing and allows for concurrent traffic and true
isochronous transfer capabilities.
Some of the features of the DMI include:

2.0 GB/s point-to-point DMI to ICH9DO (1.0 GB/s in each direction)

100 MHz reference clock (shared with PCI Express* Graphics Attach)

32-bit downstream addressing

APIC and MSI interrupt messaging support

Message Signaled Interrupt (MSI) messages

SMI, SCI and SERR error indication
2.6 Intel® ICH9DO Southbridge Chipset
The Intel® ICH9DO Southbridge is an advanced I/O controller hub (ICH) connected to the
Intel® Q35 Northbridge through a DMI connection. The Intel® ICH9DO has six PCIe x1
ports, supports up to twelve USB 2.0 devices and six 3.0 Gb/s SATA II drives with Intel®
Matrix Storage Technology (ACHI, RAID 0, RAID 1, RAID 5 or RAID 10). The ICH9DO
also comes with an integrated GbE controller that is interfaced to an external RJ-45
connector. A High Definition Audio codec is connected to the Intel® ICH9DO to provide
audio capabilities.