Video Memory stress Test - Version 1.7 This test allow you to completely test your video RAM (accessible to DirectX). The best way to check stability after overclocking ;) "Video Memory stress Test for Clean Environment" is a separate program, which must be launched via booting from a special boot disk. Detailed information about it see in VMTCE folder of this archive. Main difference from my old tool Artifact Locator is per-bit testing (almost per-pixel), what allow to escape of usage of GDI and make possible to use the bit masks almost color masks. Now tests in different color modes performs in "background", without changing current video mode.