In this article
A site power assessment needs the whole host and the applicable circuit boundary, not a sum of GPU names or PSU ratings.
A GPU colocation power budget starts with the site’s permitted electrical capacity and the complete system’s requirements. Check the applicable circuit or allocation, operating modes and other equipment sharing that boundary. Adding the ratings printed on installed power supplies is not a measurement of actual server consumption.
The owner should prepare the information; qualified site personnel determine the appropriate electrical arrangement. This worksheet does not replace the manufacturer’s installation requirements or the site’s assessment.
Read the complete system requirements
Record the exact host model, installed components and power configuration. NVIDIA’s DGX H100/H200 documentation illustrates why a system has model-specific supply requirements. Those requirements cannot be applied unchanged to an arbitrary workstation.
A GPU’s advertised power figure describes only part of the machine. CPU, RAM, drives, networking and power conversion also matter. Conversely, installed PSU capacity does not mean the host continuously consumes that amount.
Establish the site’s boundary
Ask what the limit covers and in which units it is expressed. Is it a server allocation, circuit, cabinet or a broader site constraint? Identify equipment already using the same allowance and any conditions on continuous operation.
| Question | Evidence to request | Why it matters |
|---|---|---|
| What is limited? | Named circuit or allocation | Defines the calculation boundary |
| What is already connected? | Current equipment record | Avoids counting capacity twice |
| Which system is proposed? | Exact configuration | Supports manufacturer checks |
| Who approves connection? | Responsible site contact | Establishes the next decision |
Keep unresolved electrical details marked as unresolved. A numerical estimate should not be presented as an approval to connect additional hardware.
Observe several operating modes
Measure the intended host during startup, idle operation and the representative workload using an appropriate method. NVIDIA SMI can contribute GPU observations, but those are not automatically the complete wall-power measurement.
Record the period and source for every value. A short peak, an average and a configured limit answer different questions. If other equipment shares a measurement, state that limitation rather than attributing the full reading to one server.
Turn the record into a site discussion
Provide the configuration, proposed schedule, measured observations and outstanding questions to the responsible site specialist. Include cooling and access requirements in the wider placement assessment. An adequate power allocation alone does not establish readiness for sustained operation.
Include the available capacity as documented by the site, without publishing sensitive access details. This makes an initial feasibility discussion possible before any workload, relocation or operating arrangement is assumed.
Continue with GPU Server Electricity Costs: Reconcile an Actual Bill and Offer Your GPU Server Without Relocating It.