# tt_board_power_limit_w

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## Name

### Prometheus Metric Name

```
tt_board_power_limit_w
```

### Metric Path (tt-telemetry)

Schema:

```
{hostname}/tray{tray}/chip{chip}/tt_board_power_limit_w
```

Example path:

```
bh-glx-c09u02/tray1/chip2/tt_board_power_limit_w
```

## Description

The board power limit in watts. This is the maximum power the board is configured to draw. Compare with `tt_tdp_w` to monitor current power consumption relative to the board's power limit. This metric is only available on devices whose firmware supports reporting the board power limit.

## Values

**Type:** Unsigned Integer

**Units:** Watts

**Allowable values:**
A non-negative integer representing the board power limit. For example, `300` means the board power limit is 300 watts.

## Related Metrics

|Metric|Description|
|---|---|
|[tt_tdp_w](tt_tdp_w.md)|The current power consumption. This is the value that `tt_board_power_limit_w` provides the upper limit for.|

## Prometheus Labels

|Label Name|Value|
|---|---|
|hostname|The host from which the metric was collected.|
|hall|The datacenter hall where the host is located. Sourced from the Factory System Descriptor (FSD).|
|aisle|The datacenter aisle where the host is located. Sourced from the Factory System Descriptor (FSD).|
|rack|The rack number where the host is located. Sourced from the Factory System Descriptor (FSD).|
|shelf_u|The shelf U position in the rack where the host is located. Sourced from the Factory System Descriptor (FSD).|
|tray|The tray (UBB) that the device is located on.|
|chip|The ASIC location within the tray.|
|unit|The unit of measurement. Always `"W"` for this metric.|