Question Flashed Bios but no POST

[alan.farkas]

I was going to send my MAG B650 Tomahawk Wifi mobo in via RMA because suddenly after months of the rig working fine, it seemed it was the one thing keeping the PSU from powering up. (Did the paperclip in the PSU cable trick with each component.) But then tried flashing the BIOS here and it seemed like it was going to work, but after multi tries and waiting hours after each try, LEDs have not changed.

Details: Nothing connected to the mobo but an M.2, the PSU_1 and ATX cables. When I hit BIOS Flash, the PSU powered up (!) and I got the light flashing on the back panel, and the Red & Yellow LEDs lit — it went for about 6 mins, and then restarted itself. Joy! But again, no LED change. No POST.

NOTE: When it was working, and I plugged in an external SSD, it told me there was nothing on the drive. The next morning is when it seemed to have died. Using my backup laptop, the drive is being read properly, showing everything is fine with it. Thoughts?

RIG:

CPU		AMD Ryzen 9 7900X 4.7 GHz 12-Core Processor
CPU Cooler		Thermalright Peerless Assassin 120 SE 66.17 CFM CPU Cooler
Motherboard		MSI MAG B650 TOMAHAWK WIFI ATX AM5 Motherboard
Memory.		G.Skill Trident Z5 RGB 64 GB (2 x 32 GB) DDR5-6400 CL32 Memory
Storage		Seagate IronWolf Pro 4 TB 3.5" 7200 RPM Internal Hard Drive
Storage		Samsung 980 Pro 2 TB M.2-2280 PCle 4.0 X4 NVME Solid State Drive
Video Card		Zotac GAMING Twin Edge OC GeForce RTX 3060 12GB 12 GB Video Card
Video Card		Asus TUF GAMING OC GeForce RTX 4080 SUPER 16 GB Video Card
Case		Corsair Vengeance C70 ATX Mid Tower Case
Power Supply		EVGA SuperNOVA 1000

Thanks so much in advance,

Alan

 

[helpstar]

Which CPU and ram? GPU?
Which power supply?

 

[alan.farkas]

Which CPU and ram? GPU?
Which power supply?

Thanks for the quick reply, and apologies, edited original post with info. 👍