ASUS show off Quad SLI PC, but how?

Today whilst walking around the show ground we noticed that ASUS had a Quad SLI system setup using two GeForce 7950GX2 graphics cards or a total of four GPU's to avoid any confusion. The motherboard being used was a M2N32-SLI Deluxe with AMD Athlon FX-62 processor.

Without being confronted by ASUS staff, we managed to get into the nVidia control panel to check out how it was being done, since we had many issues in our labs trying to get Quad SLI setup and working properly.

It turns out ASUS were using ForceWare driver version 91.28 while review websites were only given 91.29 for their testing, which apparently doesn't support Quad SLI or at least stops it from working. So it turns out 91.28 is the "special Quad SLI driver" all the Taiwanese folk have been talking about during Computex this week.

We would have liked to run a benchmark but unfortunately there was no benchmark software installed on the PC at the time.