What exactly does this mean when it's in the red? I recently installed a highpoint RAID in slot 5, which has four 1TB drives installed. Two GPUs, slot 1 is 5700 MPX module, slot 3 is Radeon 6800 XT reference card.
Slots 1 and 3 have fast (16X) slot speed to support the absolute peak performance for graphics cards. They also have cooling appropriate for hot MPX modules.
You will not change ANYTHING by moving cards to different slots. Your A-side is 100 percent full, and your B-side is 125 percent full. You are just shuffling the issue of "too much stuff" on "not enough PCI bus bandwidth" from one place to another without fixing anything..
You can not run all that stuff at rated speeds at exactly the same time. Throttling will occur if that happens.
What you need to do is decide which of your devices should be allowed to share the over-committed bandwidth, and operation of one is OK to slow the other.
Slots 1 and 3 have fast (16X) slot speed to support the absolute peak performance for graphics cards. They also have cooling appropriate for hot MPX modules.
You will not change ANYTHING by moving cards to different slots. Your A-side is 100 percent full, and your B-side is 125 percent full. You are just shuffling the issue of "too much stuff" on "not enough PCI bus bandwidth" from one place to another without fixing anything..
You can not run all that stuff at rated speeds at exactly the same time. Throttling will occur if that happens.
What you need to do is decide which of your devices should be allowed to share the over-committed bandwidth, and operation of one is OK to slow the other.
When you push everything on the B side as fast as it can possibly go, some data will be slightly delayed because there will not be enough bandwidth to handle the surge.
Think long and hard about what needs to be transferring data at EXACTLY the same time, and configure so those devices are not over-configured.
Generally speaking, the stated requirements of Mac Pro graphics cards far exceed their actual need to steadily transmit data.
Do you constructively use BOTH those graphics cards at EXACTLY the same time? Those Two seem like candidate to be over-configured without penalty.
Moving to a different slot will not help you. You have more "stuff" than you have Bus cycles.
The only time they are used at the same time is probably during mining in Windows (bootcamp), or on the Mac side, when I'm using Davinci Resolve.
Question: should the GPUs only be installed in slot 1 and 3? What if I move the GPU to slot 4?
Ok, as I reconfigure things: Is it true that GPUs should only be installed in slot 1 and/or 3?
PCI Card Expansion Slot Utility in the RED
