# tt_dram_temperature_top_celsius

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## Name

### Prometheus Metric Name

```
tt_dram_temperature_top_celsius
```

### Metric Path (tt-telemetry)

Schema:

```
{hostname}/tray{tray}/chip{chip}/dram/module{module}/tt_dram_temperature_top_celsius
```

Example path:

```
bh-glx-c09u02/tray1/chip2/dram/module0/tt_dram_temperature_top_celsius
```

## Description

The temperature of the top die of a GDDR (DRAM) module in degrees Celsius. Each chip has multiple DRAM modules, and each module has a top and bottom die with independent temperature sensors. This metric is only created if GDDR telemetry is available on the device.

## Values

**Type:** Floating Point

**Units:** Degrees Celsius

**Allowable values:**
A floating-point number representing the top die temperature. For example, `55.0` means the top die of the DRAM module is at 55 degrees Celsius.

## Related Metrics

|Metric|Description|
|---|---|
|[tt_gddr_max_temperature_celsius](tt_gddr_max_temperature_celsius.md)|The maximum GDDR temperature observed across all modules on the chip.|

## 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.|
|module|The DRAM/GDDR module index on the chip.|
|unit|The unit of measurement. Always `"°C"` for this metric.|