About the description of x6000 server PCIe expansion card, which of the following are incorrect? (Multiple Choice)
A . When configuring four and a half width compute nodes, one PCIe x8 card can be expanded for each compute node
B . When configuring two full curtains compute nodes, two PCIe x8 cards can be expanded for each compute node
C . 4 PCIe expansion slots and the corresponding relation of compute nodes can be configured
D . When configuring two full curtains compute nodes, PCIe slot 3 and 4 are not available
Answer: AD