Chip Diagnosis

Function

Diagnose the chip health status and output the diagnosis result. The Atlas A3 training and inference products support health diagnosis of bus devices.

**Table 1** Diagnostic items
Item	Time Required	Whether NPU Training or Inference Is Affected	Application Scenario
Device diagnosis	2–4 seconds	No	Training or inference service rollout; inspection and hardware failure

Parameters

Table 2 lists only a test-specific parameter. For details about other common parameters, see Common Parameters.

**Table 2** Parameters
Parameter	Description	Mandatory
[-i, --items]	Specifies the diagnosis check item. device indicates the device health diagnosis.	Yes

Example

ascend-dmi -dg -i device

[***@***]# ascend-dmi -dg -i device
Summary:
    Arch: aarch64
    Mode: ******
    Time: 20250529-19:21:08
 
Hardware:
    device:
        HEALTH

Fault Check Items

**Table 3** Fault check items
Command Output	Description
HEALTH	The device is healthy.
SKIP	The current product or scenario does not support this function.
GENERAL_WARN	General warning (For details, see the displayed error information.)
IMPORTANT_WARN	Important warning (For details, see the displayed error information.)
EMERGENCY_WARN	Emergent warning (For details, see the displayed error information.)
WARN	An unknown UB device is faulty.
FAIL	The device diagnosis failed.

Parent topic: Health Check