Overview
- A community modder named kryptonfly booted Intel’s Core 9 273PQE into Windows on a consumer Z790 motherboard after a custom BIOS rewrite.
- The chip is a Bartlett Lake model for embedded use with 12 performance cores and no official support on LGA1700 desktop boards.
- The workaround spoofed Raptor Lake during early startup, which cleared boot errors and let the system pass POST and load Windows.
- Screenshots from tools such as CPU-Z show 12 cores and 24 threads detected, but the build cannot yet enter BIOS menus and no stability or performance results are published.
- The test used an Asus Z790-AYW OC WiFi board with BIOS code the modder says he rewrote using Claude AI, underscoring how firmware rules rather than the socket block these parts on consumer boards.