Sparc T4-4-Memory Issue!!

Hello,I have sparc t4-4 server and it is fully populated with one processor module.Means that 32 dimms of 4 gb is installed in this server but when i tried to boot the server with pre-installed solaris and at ok prompt it shows only half memory.At ok prompt it is showing 65 gb where as actually it is 128 gb.Amber Led is off.kindly let me know it there any option of memory mirroring and if it is then how can we eliminate this so that we can have full 128 gb memory.

Secondly i am confused about the paramater of "virtual-console" because at ok prompt output/input device is set to "virtul-console" and when i boot the server then its display disappear may be redirect to any other terminal.So what is the procedure to take all the display on Putty connected via serial.