Charles,
Can you check below items and let me know the same
1: Can you check Hardware log after inserting the blade and check whether any message related to the inserted blade. If CMC log is full make sure you are clearing it before checking this.
2: What is the CMC and iDRAC FW version for chassis and blade?
3: When you insert blade can you check the LCD on front side of chassis and see whether it is showing any error message
4: What kind of modules you have on Chassis Fabric A,B and C
5: Does the blade have any Mezz Cards?