2D Graphics – Video memory test [2D] |

This test directly writes, reads and verifies data to the primary display device using the Microsoft DirectDraw interface. As such, the version of DirectX specified in the System Requirements must be installed on the machine under test. You may test…

• | Just the local video memory – that is the graphics adapters onboard memory. This is the default setting. It is suggested that this is run with the memory test to test the System RAM as well (The default settings).

• | All available video memory – this includes the local video memory and any other video memory, such as RAM reserved for graphics. As this test can use a significant proportion of system RAM on some systems as video memory, running the memory test at the same time can lead to only a small amount of test memory being available for test by the memory test (as a large amount of the system RAM can be tested using the 2D video memory test). This test is therefore generally not intended to be run simultaneously with the memory test (but it can be).

In each case, the test first determines how much of the appropriate memory is free and then fills this memory with a series of test patterns. Each test pattern is written to video memory and then displayed in the test window. After display, the test pattern data is read back from video memory and verified. Any errors are reported.

Note: The amount of video memory tested is essentially the amount of Video RAM available to BurnInTest. It excludes the video RAM used by the primary surface. In multi-card Graphics systems, it may only include the video RAM of 1 card.

The screen color depth must be set to a minimum of 16 bits.

The test patterns used are similar to the memory test, plus some color specific patterns.

• | White (11111111)

• | Black (00000000)

• | Binary 1 (10101010)

• | Binary 2 (01010101)

• | Sequence (1, 2, 3, …)

• | Red

• | Green

• | Blue

Note: The 2D Graphics Video memory test is not compatible with the 3D non-windowed full screen test. If you intend to run both the 2D Video memory test and the 3D test, please select a Windowed 3D test (in Preferences->3D->Window Size).