Ryzen 7 5800x issue

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   I'm currently running an older Asrock mobo
ASRock X370 Pro4 ATX AM4 Motherboard

I just recently purchased a new cpu to replace my Ryzen 5 2600 and upon installation the pc will not boot up. It will constantly kick on, all the fans run and then it tries to boot then shuts off and then the process begins again. There's no post to the mobo. I've swapped my 5 back in and it boots as normal. 

I'm confused if maybe there's some reason the specific 7 I got is either dead or incompatible even though the x370 is supposed to be compatible with all 5000 series ryzens or at least that was my understanding. Any help would be greatly appreciated thanks. 

I did also try unseating and reseating the ram sticks and that didn't seem to change anything.

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nombieasrock Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 06 Feb 2024 Status: Offline Points: 35	Post Options Post Reply Quote nombieasrock Report Post Thanks(0) Quote Reply Topic: Ryzen 7 5800x issue Posted: 06 Feb 2024 at 1:57am
	I'm currently running an older Asrock mobo ASRock X370 Pro4 ATX AM4 Motherboard I just recently purchased a new cpu to replace my Ryzen 5 2600 and upon installation the pc will not boot up. It will constantly kick on, all the fans run and then it tries to boot then shuts off and then the process begins again. There's no post to the mobo. I've swapped my 5 back in and it boots as normal. I'm confused if maybe there's some reason the specific 7 I got is either dead or incompatible even though the x370 is supposed to be compatible with all 5000 series ryzens or at least that was my understanding. Any help would be greatly appreciated thanks. I did also try unseating and reseating the ram sticks and that didn't seem to change anything.

eccential Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Oct 2022 Location: Nevada Status: Offline Points: 5260	Post Options Post Reply Quote eccential Report Post Thanks(1) Quote Reply Posted: 07 Feb 2024 at 7:03am
	Assuming this is the board: https://www.asrock.com/MB/AMD/X370%20Pro4/index.asp#BIOS You need BIOS 7.10 or newer for 5800X. If the current BIOS is older than 7.00, you need to first flash it to 7.00 (Bridge BIOS), and then you can flash it further to the latest (10.08 beta). If you don't want the beta BIOS, you can stop at 7.40, but personally, I'd go for the latest beta, because Asrock tends to leave these older boards with beta BIOS. So put the 2600 back in, flash to 7.00, flash again to 10.08. And then swap the CPU to 5800X.

nombieasrock Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 06 Feb 2024 Status: Offline Points: 35	Post Options Post Reply Quote nombieasrock Report Post Thanks(0) Quote Reply Posted: 09 Feb 2024 at 12:10pm
	Thanks! Yeah I round about way found that same solution my bios had never been updated so it was stock 4.5. I had to incrementally upgrade it to 5.8 and stop since 6 to 6.4 didn't support my pinnacle cpu. Once I had 5.8 flashed i could bunny hop to 7.0 then 7.10. I stopped at 7.10 and then the 5800 ryzen 7 installed just fine like butter. Strange rabbit hole but I got there eventually!

eccential Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 10 Oct 2022 Location: Nevada Status: Offline Points: 5260	Post Options Post Reply Quote eccential Report Post Thanks(0) Quote Reply Posted: 09 Feb 2024 at 7:25pm
	Actually, 6 to 6.4 support Pinnacle Ridge, also. They "don't recommend" it, but it's just a cop out as far as I'm concerned. They stopped supporting Bristol Ridge for good at some point, but never stopped supporting Zen-based CPUs. My recommendation is to go all the way to 10.08 for the latest security fixes and all. I don't see a reason to stop at 7.10. That's just the first BIOS version to support Vermeer CPUs.