Asus P8B WS - Manual (Page 146)

5-6 Chapter 5: Multiple GPU technology support
2. Connect either one 8-pin power
connector or two 6-pin power
connectors from the power supply to
the Quadro graphics card and Tesla
computing processor card(s).
3. Connect a display cable to the
graphics card.
4. Refer to the documentation that
came with your graphics card
package to install the device drivers.
5. To verify graphics card driver
installation, right-click My
Computer and select Properties
from the menu. Click the Hardware
tab, and then click Device
Manager. Click the “+” sign before
Display adapters, and the installed
graphics card and computing processor card(s) should appear.
The screen differs based on the components you installed.