Switches/Jumpers for the PCI-E slots on X79 motherboards

[AdamK47]

So, do these switches/jumpers only enable/disable the PCI-E slots? Do they do anything else? What is the real purpose for these?

 

[Dahak]

umm, which motherboard are we talking about? It could depend on the manufacture. sorry if it sounds rude

 

[stahlhart]

So, do these switches/jumpers only enable/disable the PCI-E slots? Do they do anything else? What is the real purpose for these?

The explanation in the M4E manual is that they are for disabling individual GPUs without having to remove them from the slots, for troubleshooting purposes. Would imagine it's similar functionality for yours.