G31 micro-ATX and PCI-E RAID controller, disables onboard?

[VirtualLarry]

Just wondering. I know that Gigabyte designed some of their G31/G41 motherboards to use 4x PCI-E using the southbridge's PCI-E lanes, to enable running dual-display, with both the onboard graphics and an add-in PCI-E video card. Logically, this suggests to me that the motherboards that have both onboard and wire up the PCI-E x16 slot with lanes from the northbridge, will disable the onboard video, if you plug in an x16 PCI-E card.
Which, if it were a video card, no big deal, you wouldn't want to use the onboard video anyways if you had a better one installed.

But what if you plug in a RAID controller card? If it's a choice between onboard video and x16 PCI-E lanes, then that would shut off your onboard video, leaving no video output on the mobo. That would be bad.

Does anyone know?

 

[Zap]

But what if you plug in a RAID controller card? If it's a choice between onboard video and x16 PCI-E lanes, then that would shut off your onboard video, leaving no video output on the mobo. That would be bad.

Does anyone know?

Huh, never considered this dilemma before. Until someone tries it, your theory (that it shuts off onboard video) is sound.

There were some motherboards that had a PCIe x4 instead of x1 as the secondary slot. I think my Asus P5K-VM had that. You might want to look for a board with that feature.