Or just one part of the memory?
I've always figured that maybe one ram chip on your card may be the weakest link, so testing only some of the video ram is pointless as it would never find it. It would only be good for testing core. I also figure that people who write these tools aren't idiots and would realise that, but it doesn't hurt to ask.
I've always figured that maybe one ram chip on your card may be the weakest link, so testing only some of the video ram is pointless as it would never find it. It would only be good for testing core. I also figure that people who write these tools aren't idiots and would realise that, but it doesn't hurt to ask.