Dell's new prebuilt PC has special custom power connector for Nvidia GPU — even large OEMs apparently fear the 16-pin power connector meltdowns

Source: Tom’s Hardware

Image credit: chimolog.co

Dell’s custom power‑connector solution

A Japanese teardown of Dell’s EBT2250 prebuilt PC shows that the manufacturer has taken an unusual step to mitigate the well‑known overheating problems of the 16‑pin (12V‑HPWR) connector. Instead of using a standard plug that can be pulled or wobble, Dell permanently bolts the connector in place with a metal fitting from Amphenol.

DELLのパソコンおもしろい変換使うな、至近距離で曲げるな、とか言われる某コネクタをこういう扱いしてるでも自作PCと違うのはAmphenol製の純正金具を使って強制的に固定してるところ「12V-2x6はしっかり挿し込め」が現状の正解なんでしょう
— Twitter, 20 Feb 2026
Link to tweet

Connector design

• Dell uses genuine Amphenol metal fittings to lock the 12V‑2x6 connector, preventing accidental disengagement.
• The cable that plugs into this female connector is not a native 16‑pin plug; it terminates in two standard 8‑pin PCIe plugs via an adapter.
• This approach addresses the overheating issues that have plagued the 12V‑HPWR/12V‑2x6 connectors, which have been linked to numerous meltdowns and even GPU fires.
  • See Tom’s Hardware’s coverage of connector overheating: Melting power connectors and how to safeguard against them
  • Example of a GPU fire: NVIDIA RTX 5090 power wire caught fire despite using the original cable

Power supply and GPU

• The system is powered by a proprietary 1000 W 80+ Platinum PSU from LITEON (Taiwan). It uses standard connectors, suggesting that the lack of a native 16‑pin ATX 3.0/3.1 connector forced Dell to employ the bolted‑on adapter.
• The GPU is a Dell‑branded RTX 5070 Ti. Although its power draw does not strictly require a 16‑pin connector, Dell opted for the extra safety margin.
• To support the GPU’s weight, Dell also installed a sag bracket.
• The rest of the prebuilt includes an Intel Core Ultra 275K CPU and 32 GB DDR5‑5600 RAM.

Image credit: chimolog.co