Anyone experience hashrate drop on P106-100 in SMOS?
I had this before but not happen for last year, and recently started on few rigs, mostly with 8 card configuration.

The situation is that rig reboot itself (because of some conflict?) and hashrate drops to 21Mhs per card samsung mem, or 18Mhs per card with Hynix mem. All cards in rig are affected. When I change poweer limit only 1W they back to work normaly next few hours. I've Tried different miners, OC settings...