PC Processors

[ldhaunt]

Why AMD allows 5000 cpus to run on A320 but not B350/X370?

Is B350 and X370 chipset are worse than A320?

[vialli100 · Accepted solution]

I wouldn't use a 5000 series on any 350 series..

My Asus Prime x-370 Pro wasn't up to running my 3700x..

I had power fluctuations and couldn't get it stable, I think the VRM's were not pushing enough power..

[elstaci]

according to this Appauls tech site the AMD 5000 Series processors can run on the 320 & 370 series Motherboards with a BIOS update: https://appuals.com/amd-ryzen-5000-zen-3-desktop-cpus-can-run-on-select-300-series-motherboards-with...

It mentions since the 300 Series BIOS is much smaller than the 400 and 500 Series BIOS to make the 300 Series Motherboard compatible with the 5000 Series processor, BIOS will stop supporting some older AMD processors like the 1st generation processors. Depending on the 300 series Make & Model.

It is up to the Motherboard manufacturers whether to support the 5000 Series on their 300 series motherboard with a BIOS update.

[ldhaunt]

But AMD stop Asrock from doing so last year, right? I wonder if they have changed their mind

[elstaci]

Like I mentioned it is up to the Motherboard Manufacturer's decision. They can follow or ignore AMD advise about what they put in their BIOSes.

Possibly, in my opinion,  ASRock stopped using 5000 series processors on some of their motherboards due to the amount of complaints they received from Users like the issues that @vialli100 mentioned as an example.

[vialli100 · Accepted solution]

I wouldn't use a 5000 series on any 350 series..

My Asus Prime x-370 Pro wasn't up to running my 3700x..

I had power fluctuations and couldn't get it stable, I think the VRM's were not pushing enough power..

[ldhaunt]

I guess I'll give up on upgrading and wait for AM5 then

[elstaci · Accepted solution]

@ldhaunt 

I just read on my Cellphone from Tom's Hardware article that first: https://www.tomshardware.com/news/vendors-finally-enable-ryzen-5000-support-on-a320-motherboards

1- Ryzen 5000 Series processors aren't officially supported on AMD 300 Series Motherboards.

2- Asus & Gigabyte has deployed new BIOS version to make the A320 Motherboards to support the Zen 3 chips but needed to drop some older AMD processors from being supported on their motherboards due to the small BIOS size of the Firmware.

3-According to the article since Asus & Gigabyte have decided to include BIOS versions that support the 5000 Series processors other Motherboard Manufacturers will probably follow suit also.

4- It did mention that some Users have modified the X370 motherboard BIOS, by usage of Bootleg Firmware to support the 5000 series processors but they mentioned it is risky since it may not be fully compatible with the motherboard and its hardware. Also mentioned some Manufacturers have deployed BIOS version on very few selected Motherboards on the 300 Series to support the 5000 series processors.

[blazek]

Some will, some wont... we will see what they announce at CES 2021