B650 Steel Legend WiFi no POST suddenly

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   Excellent catch eccential. I had assumed we were dealing with a 9k series CPU, it
being a 7600 changes everything. As eccential said, you will want to replace that
PSU to be safe. 999 times out of 1000 a dead CPU and board is caused by a bad PSU.

Edited by Xaltar - 13 Feb 2026 at 2:20am

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Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 33883	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 13 Feb 2026 at 2:20am
	Excellent catch eccential. I had assumed we were dealing with a 9k series CPU, it being a 7600 changes everything. As eccential said, you will want to replace that PSU to be safe. 999 times out of 1000 a dead CPU and board is caused by a bad PSU. Edited by Xaltar - 13 Feb 2026 at 2:20am


PapaFrito Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 16 Oct 2024 Status: Offline Points: 275	Post Options Post Reply Quote PapaFrito Report Post Thanks(0) Quote Reply Posted: 16 hours 38 minutes ago at 11:52pm
	Hi, The full list of components is at the bottom of my OP. The technician spent an ample amount of time diagnosing everything in the PC. He did insert one of his spare CPUs into the MOBO as well, was reluctant to do it the other way round (it's a small shop, though with houndreds of amazing reviews). He mentioned that there have been lots of people coming in with dead AM5 CPUs in recent months. I've decided to go with B850 tomahawk max wifi this time, due to pretty much the same price and amazing reviews. The PSU seems pretty good, though there's always a chance...Mind that the computer was not under stress when it happened. Can I even RMA the PSU only on the basis of both components simultaneous failure?

PapaFrito Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 16 Oct 2024 Status: Offline Points: 275	Post Options Post Reply Quote PapaFrito Report Post Thanks(0) Quote Reply Posted: 14 hours 54 minutes ago at 1:36am
	In case it slipped under the radar - all of the other components work and have been working all the time - fans, GPU, RAM - all of those turn on and give out the RGB / spin even when plugged to the dead MOBO. The only other component that does not launch is the screen (works, just not with the broken MOBO).

eccential Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Oct 2022 Location: Nevada Status: Offline Points: 6865	Post Options Post Reply Quote eccential Report Post Thanks(0) Quote Reply Posted: 13 hours 16 minutes ago at 3:14am
	Yeah, I don't see any red flags. Chalk one up for bad luck, I guess.