Modders solder power cables directly to RTX 5090 PCB to eliminate notorious melting 16-pin connector — bare-board Galax HOF card pulls 600W under chiller cooling
- ID
- 19534
- Status
- summarized
- Published
- 30 Aug 2026, 6:30 PM
- Fetched
- 30 Aug 2026, 8:23 PM
- Provider
- Tom's Hardware
- Category
- technology
- Original URL
- https://www.tomshardware.com/pc-components/gpus/modders-solder-power-cables-directly-to-rtx-5090-pcb-to-eliminate-notorious-melting-16-pin-connector-bare-board-galax-hof-card-pulls-600w-under-chiller-cooling
- Source URL
- https://www.tomshardware.com/feeds/all
Summary
- Score
- 3.0
- Created
- 30 Aug 2026, 8:24 PM
- Tags
- Audience
- ai_ml_learners
What happened
Modders bypassed the RTX 5090's melting-prone 16-pin power connector by soldering cables directly to the GPU PCB, using a bare-board Galax HOF card that pulls 600W under chiller cooling. This is an extreme hardware modification to eliminate the known connector failure point.
Why it matters
If you're running local AI inference on RTX 5090s, the 16-pin connector melting risk is real enough that enthusiasts are physically removing it. The practical takeaway is to monitor your power connector seating and avoid daisy-chained adapters — not to solder your own board. This is a curiosity, not actionable for most builders.
Discussion angle
The 16-pin connector problem on high-wattage GPUs and what it means for anyone building local AI inference rigs — is this a reason to stick with 4090s or cloud GPUs instead?