[SOLVED] Cpu upgrade. Pc won’t post

Aug 18, 2021
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I just upgraded my cpu. Have reset cmos and taken ram out and placed back in. My pc still won’t post. I have an asus b450f mobo. The yellow light comes on the board after it turns on. Everything in the pc lights up by I can not get to bios
 
Sep 9, 2021
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Since ryzen 3 3200-3400 is based on zen+ and your new cpu 3600 is based on zen 2, i wasn’t suprised you didn’t encounter any issues at the beggining. You need to update your motherboard bios with your old cpu from your motherboard vendor’s website. There are many tutorials on youtube to how to do it. I hope this helps.
 
Aug 18, 2021
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Since ryzen 3 3200-3400 is based on zen+ and your new cpu 3600 is based on zen 2, i wasn’t suprised you didn’t encounter any issues at the beggining. You need to update your motherboard bios with your old cpu from your motherboard vendor’s website. There are many tutorials on youtube to how to do it. I hope this helps.
Ok I will give this a try. Thank you!
 
Sep 9, 2021
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Then it is very possible it needs a BIOS upgrade.
The 2600 requires 0207
the 3600x requires 2301
Well, there was a massive backlash about b450 not supporting 3000 cpus at launch because of the motherboard ROM limitations and i don’t know how it concluded. So it would be best for you to just update it to the ryzen 2000 supported bios because they might have ended ryzen 2000 and 1000 support on the new BIOS and if you are going to upgrade to 3000 series later then update the bios before you get your new CPU since as far as i know neither AMD nor motherboard vendors have bios flashback support and i am not %100 sure about this. TLDR; update to ryzen 2000 supported bios for peace in mind.
 
Sep 9, 2021
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Put the old CPU in.
Upgrade to at least 2301,
Put the new CPU in.
Power down in between of course.
Well if the bios does support it then yeah,if not and if my suspicions were right then your motherboard might not be usable with ryzen 2600. I’d suggest him/her to update to version 0207. And as i said i am not sure. And you can update the bios later if you get a full confirmation.
 
Well, there was a massive backlash about b450 not supporting 3000 cpus at launch because of the motherboard ROM limitations and i don’t know how it concluded.
No. Most B450 motherboards were launched 1 year earlier than Ryzen 3000. That's why they didn't support Ryzen 3000 because Ryzen 3000 did not excist. ROM linitations started with Zen3 about a year ago, especially Asrock.
 
Sep 9, 2021
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No. Most B450 motherboards were launched 1 year earlier than Ryzen 3000. That's why they didn't support Ryzen 3000 because Ryzen 3000 did not excist. ROM linitations started with Zen3 about a year ago, especially Asrock.
I was talking about b450 not supporting ryzen 3000 cpus at ryzen 3000’s launch and AMD’s prior to release decision was not to support Ryzen 3000. And backlash was about AMD’s promise that Ryzen 3000 will be supported on all 400 series motherboards before Ryzen 3000 announcement and not delivering it.
 

Stephanie_Sy

Prominent
Mar 1, 2021
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I sat on all parts but the CPU for 5 months waiting for my 5900X, but there's way too much risk overall waiting for the next gen when you don't know how it performs, nor when it releases, nor how long after the actual release you can have all the parts.