I figured out the problem!   On the M1000e CMC Chassis Overiew / Network / VLAN config.  The VLAN Tag setting was enabled for the M8024 in B1.  This was preventing it from working properly on our network, because the vlan defined for the VLAN ID specified was not configured.  I unchecked the box in the "Enable" column (for B1), and it now can be accessed! Thanks!
I have a Dell Poweredge M1000E blade chassis with two M8024 switches.  I configured the IP addresses of the M8024 (B1 and B2) from the web CMC.  All ports on the chassis controllers are connected to my network.  I can connect with no problems to the M8024 in B2 slot, but cannot connect / ping / access the M8024 in B1.  I have tried power cycling/reseating the switch but no luck. Any suggestions?  I have not tried to do anything via SERIAL connection.
M1000e with M8024 (problem connecting to switch)