使用 mx-smi sgpu --enable -i 6 启用sGPU，提示：GPU#6 enable Operation not support in target device。这是什么原因呢？？
mx-smi信息
mx-smi version: 2.2.9
=================== MetaX System Management Interface Log ===================
Timestamp : Tue May 26 14:46:11 2026
Attached GPUs : 8
+---------------------------------------------------------------------------------+
| MX-SMI 2.2.9 Kernel Mode Driver Version: 2.9.8 |
| MACA Version: 3.3.0.15 BIOS Version: 1.30.0.0 |
|------------------+-----------------+---------------------+----------------------|
| Board Name | GPU Persist-M | Bus-id | GPU-Util sGPU-M |
| Pwr:Usage/Cap | Temp Perf | Memory-Usage | GPU-State |
|==================+=================+=====================+======================|
| 0 MetaX C550 | 0 Off | 0000:0f:00.0 | 0% Disabled |
| 121W / 450W | 48C P9 | 61024/65536 MiB | Available |
+------------------+-----------------+---------------------+----------------------+
| 1 MetaX C550 | 1 Off | 0000:34:00.0 | 0% Disabled |
| 127W / 450W | 50C P9 | 61024/65536 MiB | Available |
+------------------+-----------------+---------------------+----------------------+
| 2 MetaX C550 | 2 Off | 0000:48:00.0 | 0% Disabled |
| 99W / 450W | 49C P0 | 858/65536 MiB | Available |
+------------------+-----------------+---------------------+----------------------+
| 3 MetaX C550 | 3 Off | 0000:5a:00.0 | 0% Disabled |
| 105W / 450W | 50C P0 | 858/65536 MiB | Available |
+------------------+-----------------+---------------------+----------------------+
| 4 MetaX C550 | 4 Off | 0000:87:00.0 | 0% Disabled |
| 101W / 450W | 47C P0 | 858/65536 MiB | Available |
+------------------+-----------------+---------------------+----------------------+
| 5 MetaX C550 | 5 Off | 0000:ae:00.0 | 0% Disabled |
| 96W / 450W | 49C P0 | 858/65536 MiB | Available |
+------------------+-----------------+---------------------+----------------------+
| 6 MetaX C550 | 6 Off | 0000:c2:00.0 | 0% Disabled |
| 99W / 450W | 50C P0 | 858/65536 MiB | Available |
+------------------+-----------------+---------------------+----------------------+
| 7 MetaX C550 | 7 Off | 0000:d7:00.0 | 0% Disabled |
| 123W / 450W | 49C P9 | 33505/65536 MiB | Available |
+------------------+-----------------+---------------------+----------------------+