NorthridgeFix says it may be hard to repair RTX 5090 Founders Edition, because there are no spare parts

In a new video, NorthridgeFix documents a teardown and repair attempt of an RTX 5090 Founders Edition and advises owners not to open or modify the card. The case involved two RTX 5090s that arrived for service after water-block installations. To be honest, I’m not sure why anyone purchases the Founders Edition for watercooling, here we are. One board-partner card was recovered by reverting to the stock cooler. The Founders Edition could not be fixed.

We have followed NorthridgeFix across many repairs of melted 12V-2×6 power connectors on RTX 4090 and RTX 5090 cards. As a repair business, they benefit from broken hardware, yet they consistently report on weak points such as breaking PCIe interface, melting 12VHWPR connectors, or lack of spare parts.

NVIDIA’s Founders Edition uses a split design: the PCIe interface sits on a separate piece that mates to the main board through a high-pin-count internal connector (there’s also a board for display connectors). During reassembly, a pin on that connector was bent and another was broken. The card powered on but produced no display output. Voltage rails looked normal.

Source: NorthridgeFix

While the problem is obviously a user error (physical damage), the problem is that this can’t easily be fixed. The shop says the connector is similar to parts used in phones and tablets. However, they could not source an identical replacement after image searches. Without that part, the card is a no-fix.

Their advice is simple: if you already own a 5090 Founders Edition, do not open it. The internal connector is easy to misalign, and a single damaged pin can take down the card. Our advice would be the same: to avoid Founders Edition cards if your plan is water cooling. There are either hybrid AIO models or cards with waterblocks preinstalled ( list of all known RTX 5090 here ). They might cost more, but you are covered by warranty.

Source: