Voltage PSU Lab diagnoses, repairs, and installs power supplies and electrical components for custom and prebuilt PCs — every unit bench-tested under real load before it goes back in your case.
Most "random shutdowns" and "won't turn on" tickets trace back to the power supply or its wiring — not the GPU or motherboard everyone blames first.
Full load-bank testing of every rail, ripple measurement, and a written pass/fail report — usually same day.
We spec wattage and rail capacity to your actual components, not a generic chart, then install and route it clean.
Custom-length sleeved cables built to your case, eliminating slack loops that block airflow.
Short circuits, failed connectors, and intermittent power loss traced to the source with an oscilloscope, not guesswork.
We check your circuit and UPS setup so a bad outlet doesn't take out a brand-new power supply again.
Multi-GPU and high-draw workstation builds spec'd with proper headroom and redundancy where it matters.
Every card below represents a real bench ticket — tested, logged, and signed off before it left the shop.
Courtney started Voltage PSU Lab after years of watching perfectly good graphics cards get blamed — and replaced — for problems that were actually a failing power supply. She trained in electronics repair before turning her focus entirely to power delivery, load testing, and the wiring most PC shops don't bother to check.
Every unit that comes through the shop gets measured, not assumed. If a PSU can't hold its rails under real load, it doesn't go back in your case — full stop.
"A power supply isn't the boring part of the build. It's the part everything else depends on."
Tell us the symptoms — shutdowns, no-boot, coil whine — and we log the ticket.
Every rail is measured under simulated load with a professional load bank.
You get a written pass/fail report with actual voltage and ripple numbers, not guesses.
We fix wiring and connector faults on-site, or spec a properly sized replacement PSU.
Reinstalled and burned in for 24 hours before pickup, with the test report included.
Diagnostic fee is credited toward any repair or replacement performed the same visit.
"I'd already bought a new GPU thinking that was the problem. Turned out my PSU's 12V rail was sagging under load. Saved me from wasting real money."
"Custom cable build made my case look completely different — and airflow noticeably improved. Courtney explained every rail on the printout."
"Random shutdowns for months. Another shop said it was the motherboard. Voltage found a failing connector in twenty minutes."