28 June 2026

Manufacturer watts vs wall watts on a trader’s desk

Vendor pages list board power under ideal conditions. Your undervolt, riser, enclosure, and PSU efficiency change what the meter reports. Hardware Profile Setup exists so we stop arguing about sticker numbers.

How we measure in practice

Use a quality wall meter or smart plug on the PC circuit. Record idle at the trading terminal, then hashing at your usual intensity. The delta is the mining draw for schedule math. If the whole PC shares a plug strip with monitors, note that and measure the tower alone when possible.

When we still use manufacturer data

First sessions sometimes start with sticker watts marked as provisional. The deliverable carries a confidence note. After you return with three evenings of meter logs, we revise the sheet. That revision has changed more break-even dates than coin-price swings in several recent reviews.

Treat wall watts as part of desk hygiene — as ordinary as updating your pool worker name.