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Got my Dell 7970m (ES) today... and so far it rocks! Native fan control, runs cooler than the 6900m series, and it simply kicks ass. It's pretty much plug-and-play, no issues so far, though I will need to continue the testing (and benching ). Only did a Vantage and 3dM11 run so far, with GPU and CPU at stock, Tess on, check it out, hehe: Confirmed for the Dell 7970m (part nr. 747M2) in the M15x: Fan control is working properly Sound per DisplayPort / HDMI is working GPU clocks and performs as expected Possible issues: The card runs slightly warmer than the officially supported cards, due to it's higher power draw. This also leads to less overclock headroom. The card works fine even if you have an i7 920XM in your system, but if you overclock the CPU too hard, the GPU voltage drops, resulting in a drastic performance drop. (This is actually not directly caused by a power limit due to the PSU... the CPU can draw as much power as it can get, but it seems that when the CPU draws more power than usual, the GPU voltage supply somehow doesn't get provided anymore with enough power, even though there's headroom power-wise, it's probably caused by the circuit design of the mobo). Things to do before changing the GPU: Download working drivers. At the moment you can either get the drivers of the M17x R4 from Dell, or the modified, but actually more recent (12.5) from "benchmark3d". Get some thermal paste, e.g. Arctic MX-4, or Prolimatech PK-1, or whatever you prefer, you'll also need something to clean the GPU die and heatsink, isopropyl alcohol or similar will do. I highly recommend using an ESD mat and wristband whenever working Get familiar with the upgrading procedure, respectively disassembling the system. Refer to the M15x service manual if you need help, or to this pictured guide which explains how to replace the GPU in the M15x. The upgrading procedure: Uninstall your GPU drivers. Make a power drain (Turn off your M15x, remove the power cord and the battery. Then press and hold down the power button (Alienhead) for about 10-20 sec. Remove your GPU - Here's a little guide with pics in case you need some help. Clean your heatsink, if necessary replace the thermal pads with new ones. Make sure the 7970m has the correct backplate on it. Insert your GPU, make sure that it sits properly. Apply the thermal paste, and attach the heatsink. More to come.