在某台设备上执行以.下命令得出的参数：
<HUAWEI>display device
16:52:25 2014/08/05
Eudemon8000E's Device status:
Slot # Type Online Register Status Primary
-------------------------------------------
1 LPU Present Unregistered Abnormal NA
2 SPU Present Registered Normal NA
4 MPU Present NA Normal Master
5 MPU Present Registered Normal Slave
6 CLK Present Registered Normal Master
7 CLK Present Registered Normal Slave
8 PWR Present Registered Normal NA
9 PWR Present Registered Abnormal NA
10 FAN Present Registered Normal NA
以下说法错误的是哪些?（多选）
A.该设备有2个主控板，一主一备
B.该设备的一号单板现在可以转发IP数据
C.该设备2个电源模块只有一个运行，所以供电量只有50%
D.该设备的整理框架，只支持3个业务单板
正确答案是BC