Matrox Electronic Systems PCI G450, LX G450, LE G450, DVI G450 manual Click OK to accept the changes

Windows XP – Click Start # Control Panel # Performance and Maintenance # System

#Hardware # Device Manager.

2Double-click the IDE ATA/ATAPI controllers list item to expand it, then double-click the name of the appropriate controller.

3Change each Transfer Mode setting to “DMA if available”.

4Click OK to accept the changes.

Windows NT 4.0 – Install a DMA driver. For most computers, a DMA driver is available for Windows NT 4.0 (for example, the “PIIX Bus Master IDE” driver supports many computers). For more information on how to get this driver, contact your system vendor.

Cause Too many programs may be running (using up computer resources).

Solution Close other programs, including memory-resident programs like System Agent.

Cause Your display settings may be too high. As a result, video file playback may not be fully supported by Matrox hardware.

Solution Try lowering your display settings. We recommend a 1024 × 768 or lower display resolution with a 16-bit color palette.

To access display settings:

!Windows 98/Me/2000/XP – Right click your Windows desktop background, then click

Properties # Settings.

!Windows NT 4.0 – Access the Matrox PowerDesk Settings property sheet (see “Accessing PowerDesk property sheets”, page 9).

Cause Your Matrox graphics card may be sharing an IRQ (interrupt request) with another PCI card in your computer (for example, a network card).

Windows 98/Me – To see if your graphics card is sharing an IRQ:

1Click Start # Control Panel # System (double-click)# Device Manager.

2Look in the list box to see if your Matrox graphics card is

assigned the same IRQ number as another PCI card in your computer.

Solution Try moving the PCI card to another PCI slot in your computer. For more information, see the documentation for this card or see your system manual.

Matrox Graphics Card – User Guide 39