Prebuilt RTX 5090 PC Melts Down as PNY and Digital Storm Point Fingers

A college graduate’s first gaming PC turned into a cautionary tale about prebuilt warranties and the industry’s most notorious power connector. The system, a $5,245 Digital Storm Corsa built around an AMD Ryzen 9 9950X and a PNY RTX 5090, started smelling like smoke and flickering on-screen just two weeks after the owner began using it. When he pulled the case open, the 12V-2×6 power cable running to the GPU was fused into its connector, and the power supply end was even worse, with bare wires exposed. Both Digital Storm and PNY initially said it was not their problem to fix.

What actually happened

According to the owner, Anthony DeMarco, his father bought the Corsa in May 2025, partly to lock in a price before RAM prices climbed further. The build included a 2TB Crucial T700 Pro SSD, 64GB of Kingston Fury RGB memory, and a 1,000-watt semi-modular 80-Plus Gold power supply from Digital Storm with upgraded custom-sleeved cables. DeMarco tested the PC when it arrived, then boxed it back up until he started his first job in August 2026, more than a year later. Two weeks into regular use, he noticed the burning smell, the flickering display, and ultimately the melted cable ends on both the GPU and the power supply side.

Two companies, two denials

Digital Storm’s standard warranty covers parts for only one year, even though it offers three years of labor coverage, and that parts window had already closed by the time the damage appeared. Digital Storm closed his support ticket after a phone call, noting that he would try a repair claim (RMA) with PNY instead, since the GPU itself carries a three-year warranty from the manufacturer. PNY, however, rejected the RMA request because the melted cable was not the PNY-supplied adapter that ships in the GPU’s box. PNY’s support team stated that any damage tied to a third-party cable, adapter, or PSU cable, including melting or burning, falls outside its warranty and becomes the responsibility of whoever made that cable, in this case Digital Storm’s own custom PSU cable. On September 16, DeMarco filed a report with the Consumer Product Safety Commission. Digital Storm did not respond to Tom’s Hardware’s requests for comment, while PNY told the outlet it is “presently reviewing this case and will be engaging the customer directly.”

Why the 12V-2×6 connector keeps causing trouble

This is not an isolated complaint. The 12VHPWR connector, now revised as 12V-2×6 and standardized by PCI-SIG, has a documented history of melting incidents across RTX 4090 and RTX 5090 cards from multiple vendors, not just PNY. PCI-SIG issued guidance to its members back in 2022 urging better testing and safeguards against user error, but the underlying design, remains in wide use because it is the standard way to power the most demanding consumer GPUs. DeMarco’s case shows how a connector issue that can affect any brand becomes a warranty gray area the moment a system builder’s own cabling is involved instead of the cable that shipped in the GPU box.

What this means if you buy a prebuilt

The practical lesson here has less to do with blame and more to do with timing and documentation. Digital Storm’s one-year parts warranty started the moment the PC was delivered, not when it was finally unboxed and used, so letting an expensive system sit for over a year quietly burned through most of its coverage before a single game was launched. If you are buying a prebuilt as a gift or for future use, it is worth asking the retailer whether the warranty clock can start later, or budgeting for extended coverage. It also pays to know exactly which GPU brand is inside your system and to check whether its power cable is the one supplied by the GPU maker or a custom cable from the system builder, since that distinction appears to matter enormously when something goes wrong.

The bottom line

Nothing here proves a widespread defect specific to PNY’s RTX 5090 cards, but it does highlight a real gap in how prebuilt warranties interact with manufacturer warranties once custom cabling is involved. If you own or are considering a prebuilt with a high-wattage GPU, test it as soon as it arrives, confirm every power connector is fully seated, and keep records of exactly which cables and adapters came with the system. The connector itself remains a known risk across brands, so until the industry moves to a more forgiving design, careful handling and clear documentation are the best protection buyers have.

Source: Tom’s Hardware