The set of graphics boards supported by OpenVMS is small.
I seriously doubt it. That board is seemingly more commonly used in
old Sun boxes. But there's no harm in trying.
AMD ATI Radeon 7000 and Radeon 7500 PCI controllers are among the
options that will work. Other graphics boards that are effectively
renamed 7000 or 7500 boards will usually also work.
SRM is not invoked from RMC. SRM is the Alpha console. RMC is a
separate computer that used for sensor monitoring and power management.
RMC is parasitic on the COM1 serial line.
Exiting from RMC would revert to either SRM or—if booted—to the
operating system that is active on the COM1 serial line.