GENOAD8X-2T/BCM build stalls at POST

This reads less like a one-off bad board and more like the tax of building on fresh server silicon before the firmware ecosystem fully settles. Turin may share SP5 with Genoa, but first-boot success still depends heavily on board firmware, BMC access, and very un-desktop-like patience.

• –ASRock Rack lists the GENOAD8X-2T/BCM as supporting AMD EPYC 9005 and 9004 processors, while AMD lists the EPYC 9135 as a 16-core SP5 EPYC 9005 CPU, so the pairing is valid on paper.
• –The strongest signal from the thread is firmware: a user with a similar Genoa-board-plus-Turin setup says newer non-beta BIOS and management firmware were needed before 9xxx5 CPUs worked properly.
• –Server boards can look dead for minutes on first boot while they train DDR5 and initialize management hardware, which often surprises builders coming from consumer desktops.
• –Code 00 still leaves room for classic hardware faults like socket-pin damage, uneven cooler pressure, bad DIMM population, or incomplete EPS power cabling, especially after a CPU reseat.
• –For local LLM builders, the bigger lesson is that SP5 workstation platforms now double as AI infrastructure gear, and BMC/IPMI literacy is becoming part of the hobbyist stack.