Installed folding@home v6 or something(I don't fold so I'm not familiar with the software). It folded on gpu0. It didn't even try to fold on gpu1.
I first tried installing the card in my old rig whilst providing power from my new rigs psu. Everything posted okay, no red leds, but I had no display on the monitor.
I then took a spare hd, put it in my new rig, and installed a fresh copy of 7 on it and installed something like the 10.11 drivers, and it did the same thing as before. See screens.
Tray menu with 3? entries and no crossfire option.
I tried overclocking and using the built in stability test in ccc on the second gpu. That actually seemed to do something, so I quit the stability test thinking I may have awoken? the gpu, but then the second gpu disappeared from the pull-down menu in the overdrive section of ccc.
I'm going to call asus again(not fun), and ask them how they tested the card. They must have opened it up, paid no attention to my description of the problem of crossfire not working(written on the trouble ticket), booted up windows, maybe ran a game or a stability test on gpu0, and at that point, called it good without ever testing gpu1.
The girl on the phone that I talked to the first time didn't even know what a 4870x2 was, so I wouldn't be suprised if whoever tested my card was oblivious to that fact that the darn card is supposed to run crossfire.
My 6950 is being delivered today, however, and guess who I bought it from... ...not asus.Edited by PARTON - 3/23/11 at 9:06am