Key Takeaways
1. Nvidia’s RTX 5090 Founders Edition has a complex internal design with multiple interconnected boards, increasing repair difficulty.
2. The FPC connector used to connect the GPU to the PCIe slot is fragile and can easily be damaged during disassembly or installation.
3. A technician found bent and broken pins on the FPC connector, likely caused by improper handling while installing custom water blocks.
4. The card’s heavy weight adds to the challenges of servicing it, making it prone to further issues during repairs.
5. Northridge Fix advises against water-cooling or modifying the RTX 5090 Founders Edition due to the risk of irreparable damage.
Nvidia’s top-of-the-line RTX 5090 Founders Edition has come under fire from the repair experts at Northridge Fix. This well-known electronics repair shop and YouTube channel shared their analysis of a malfunctioning unit, expressing serious concerns about its internal structure.
Issues with Dual RTX 5090 Cards
The technician looked at two RTX 5090 graphics cards that were brought in by a customer who had installed custom water blocks. One card, an ASUS variant, was fixed by simply putting back the standard cooler. Unfortunately, the other one, a Founders Edition, turned out to be a real headache.
During the disassembly, it became clear that Nvidia opted for a design featuring multiple interconnected boards instead of a single printed circuit board (PCB). The GPU connects to the PCIe slot via a thin, flexible printed circuit (FPC) connector.
Fragility Concerns
The technician pointed out that the FPC connector is quite fragile. Even a slight misalignment or too much bending while taking it apart could lead to disaster for the tiny pins, causing them to bend or snap. If damaged, the GPU will not send out any signal, even if the voltage rails and other circuits seem normal.
Using a powerful microscope, the repair technician found that one pin on the FPC connector was bent, while another was completely broken. He believed this damage likely occurred during the installation of the water block.
Repair Challenges
Unfortunately, the technician could not find a replacement connector, so he had to conclude that the card was beyond repair.
Aside from the fragile connector, Northridge Fix also criticized the card’s overly complex internal design. Disassembling the Founders Edition 5090 involved dealing with numerous screws, brackets, and tiny parts, which increased the risk of failure points.
Another major concern was the card’s heavy weight, making it difficult to service. The technician commented, “The 5090 is really heavy, and when you add in delicate joints among key components, you’re just inviting problems.”
Northridge Fix recommended that fans steer clear of water-cooling or altering the RTX 5090 Founders Edition. The absence of replacement connectors means that even a minor error could turn the GPU into a useless brick.
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