I found a place where I can download a binary of the MP/M OS disk for a Systems Group 2800, should work for this machine as well.
Right now the computer boots directly into the hard drive, the disk drive is completely bypassed. I assume there is a switch setting somewhere that I can change to cause the system to attempt to boot from the disk drive first. If I can get a disk with MP/M to boot from the diskette drive I can potentially find a backdoor to the password file used by the "Temple University Career Development Computer System" . If that fails, I can attempt to get the password from RAM by using an in-circuit emulator installed into the Z80 CPU slot. By observation I believe the password test program puts the password in RAM after the first attempt. It does not appear to check the hard drive for the password when you try a new password after the first attempt fails.
Lastly, I cleaned the internal dust and a little gunk from the front grill.