MSI Safeguard+ PSU caught a dead pin on an RTX 5090 before the connector melted
A Redditor who received a replacement RTX 5090 from MSI saw no errors, but monitoring through MSI's AI1300TS power supply with Safeguard+ showed pin 2 of the 12V-2x6 connector carrying no current. Swapping cables and ports didn't help; the connector on the card sat slightly lifted off the PCB, pointing to a manufacturing defect. The card is headed for another RMA.
- Safeguard+ monitors per-pin current on the 12V-2x6 and sends alerts
- Pin 2 read 0 A, leaving the other five pins to carry the full load
- Changing the cable and the second PSU port made no difference
- The GPU's connector was lifted off the PCB — a factory defect
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