求助：SUN 3510 控制器问题

有台SUN 3510 报以下错误，请问一下是控制器坏了吗?还有个问题就是通过串口连阵列出现的都是乱码，CRT设置都没问题，这是怎么回事啊?

To acknowledge and continue type 'acknowledged<ENTER>':
Unrecognized input - ! Please try again.
NVRAM CRC Error! NVRAM must be reinitialized- Replace Controller.
To acknowledge and continue type 'acknowledged<ENTER>':
Unrecognized input - ! Please try again.
NVRAM CRC Error! NVRAM must be reinitialized- Replace Controller.
To acknowledge and continue type 'acknowledged<ENTER>':
Unrecognized input - ! Please try again.
NVRAM CRC Error! NVRAM must be reinitialized- Replace Controller.

多半要换控制器了