AB350M Pro4 freezing pc

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 COF1 wrote:

First time that i sent mb to them to test they didnt accept rma so i bult pc again and pc worked normaly for whole day and next day pc started crashing again. So that means that mb will work normaly when doesnt have power for some days. So i think that that mb will crash on any cpu.

Yes, same issue all others. Mobo can handle about 60/120 min without crash and then -1/2 time before next crasah to finally crash while booting until put the mobo to sleep a day or more to 'cold' entireliy. 

Obviously, i don't know nothing about your purchasing date, your rights or what you can claim but:

- Dealer must take your product in the first 7/15 days after the purchase. Something is wrong, the machine will crash in idle at the 60/120 min, and then all comes worst.
- rma procedure must be done by the customer and comes after the 7/15 days dealer gives the support.

Zen APU put the VRM, chipset and circuitery under much more workload than the Zen CPU or A-series products. Understand thar cpu cores and igpu cores feeds from the NB VRM (both). The stock voltaje is 1.4. If you keep it as is, when performance boost and xfr wakes (constantly) you will it 1.55V (!) with out the peaks and vdroop due the lack of LLC the inestability is going to happend.

The mobo was going great with ryzen 1 gen. Agesa 1.006. Bios 3.3 or so. Problems started with the release / support raven ridge (Zen APU) and Pinnacle (Ryzen 2nd gen).

Maybe you are not going to doublecheck about it, but if at the store do test using CPU (not apu) Ryzen 1 (with much less VRM stress and handling only CPU, not iGPU), they are not playing the same game you are faceing.

In my opinion, the phisical components or the design of the mobo can't handle properly nothing after Summit (Ryzen 1st gen - CPU). 

Edited by MPro4-FAULT - 13 Jul 2018 at 5:11pm