The hardware team at Teclab has modified a custom Galax RTX 5090 to create the first version running on 3 standard 8 pin power connectors. The crew completely removed the factory dual 16 pin plugs, rebuilding the board through direct hardware adjustments without touching the software. During extreme load testing, the reworked card reached clock speeds of 3400MHz.
Instead of relying on standard 16 pin headers, the technicians removed the original solder points and power connectors from the Galax HOF OC LAB printed circuit board. They mounted a thick copper plate to the back of the card. From there, they routed 24 heavy gauge wires directly into the main power stages on the front. This setup divided power delivery across 9 dedicated 12V lines, with each individual line carrying between 8 and 8.5A.
Getting the graphics card to accept this custom power configuration required direct hardware spoofing. Teclab reconnected the Sense 0 and Sense 1 pins on the board. This trick allowed the GPU to detect full power availability automatically. The team made zero modifications to the BIOS or underlying software, completing the entire conversion through physical circuitry.
During live testing, Teclab increased input power in steps through 400W, 500W, 600W, and 900W while tracking voltage and temperature stability. With 3 8 pin plugs active, the RTX 5090 pulled peak current past 60A and maintained core speeds of 3400MHz. The card was then pushed past 120A at 3400MHz for over 1 hour of continuous operation. Cable temperatures remained low, measuring just over 35 degrees Celsius.
The technicians also tested the card under intentional power limits. Removing the third 8 pin plug still allowed the board to draw 66A and sustain clock speeds above 3200MHz, with thermal readings staying below 25 degrees Celsius. Running on only 1 single 8 pin plug delivered 65A at speeds between 3.1 and 3.2GHz. On that single plug test, connector temperatures reached 45 degrees Celsius while the supply cables warmed to 65 degrees Celsius.
