Hi everyone! I make this post to ask : how to get a ryzen 7 5700X3D to post on a MSI B450 Gaming pro carbon AC?
The thing is I am upgrading from a ryzen 5 2600 to a ryzen 7 5700X3D but I can’t get the mother board to POST. The system posts properly with the ryzen 5 and I already cleared the CMOS, and the BIOS is up to date.
Excellent upgrade!! 😃 That’s wonderful you got the new CPU, you will notice a differencein spped in everything immediately!
Take out the 5700x3D, put 2600 back in and repaste heatsink. Turn on computer flash BIOS to the last version available for B450 Carbon AC. Read BIOS revisions notes to see if any say do not skip ahead until flashing this version of BIOS because if say version 103 says do not jump to lastest before updating to this version but you only flash version 110, there will be a problem with motherboard because info in BIOS is missing so board can’t boot normally.
But if you flash version 103, wait for it to finish, reboot, flash version 110, wait for it to finish, reboot, wait for desktop, then you should be 100% good for board to boot 5700x3D. Those version numbers are made up examples, don’t go looking for those BIOS version numbers on the MSI page
I guess i will try this, maybe I missed some update
Likely a bios update you need to apply. At one point the B450s weren’t going to support Zen 3. AMD reversed course later, but that likely means that a bios update had to come along in order to add the support.
Lots of motherboards, even new ones, still ship with old-ass bios.
Also, remember that memory-training is a thing now – don’t assume that 10 seconds of a black screen means it won’t post. Easily wait a minute or more - board could just be in memory-training to get the best speeds.
Some boards even have a light indicating this is occurring!
I’d say look up the processor compatibility list for the motherboard. It could be that the motherboard doesn’t directly support that processor.
I just checked for you, the 5700X3D is supported by your mobo with the latest BIOS version. Double check it is the latest BIOS. Reseat the processor, don’t overtighten the heatsink, this is a common cause of issues. Remove all RAM, then reinsert 1 stick only. Unplug all USB devices when booting.
I had this issue, you need to update the bios. However, I couldn’t even get it to show up on the monitor, I had to correctly format a USB drive with the update and use the red “flash bios button”
