Originally Posted by BradleyW
Does the pci-e share with the other sata ports? If i install usb 3.0 drivers, will that also use some pci-e bandwidth?
The P8Z68-V Pro/P8P67 Pro boards have an option in the BIOS under Advanced UEFI, Advanced tab, Onboard device configuration, PCI-E Express X16_3 slot (black) bandwidth [Auto]. The manual for the MoBo does a pretty good job of explaining this option.
[Auto] PCIeX16_3 slot runs at X1 mode for system resource optimization. (PCIeX1_2 will be disabled.)
[X4 mode] PCIeX16_3 slot runs at X4 mode for high performance support. (USB3_34, eSATA ports, PCIeX1_2 will be disabled.)
[X1 mode] PCIeX16_3 slot runs at X1 mode with all slots enabled. (USB3_34 will be disabled.)
In a nutshell, the answer to your question is YES THEY DO, and there isn't enough bandwidth to go around to use all of these options at the same time. So you're going to have to decide (unless you upgrade your mobo) what you do and don't want to use. That's the way I understand it anyways. If I'm wrong, someone please correct me.
Edit: Simplest solution for me was the [Auto] option, since I don't PCIeX16_3 or PCIeX1_2.Edited by Arimis5226 - 10/7/11 at 6:47am