Hi guys,
I recently bought two Epyc 7551 ES chips from eBay and have been encountering memory instability issues.
I followed another post here about 1st gen Epyc overclocking using Zenstates and I'm currently running 3.3GHz 1.175V with SMT off on both chips with only VRM cooling being a real issue (well, that and a memory channel not working on one of the chips, CPU 1 DIMM E). Pushing 3.4GHz leads to instabilities with overcurrent protection preventing higher clocks.
Anyway, my issue is that I am getting memory errors reported in IPMI with hard crashes, when I am running at stock (16gb Micron DIMMs at 2133MHz CL15). I was wondering if there was any way for me to overclock the SOC (asking about SOC voltages as they are currently below 0.9V, when I would run 1.05V on my old 2700X for memory stability) and ram voltages for increased stability and potentially add the ability to push 2666MHz on them. I'm running an unlocked BIOS version 1.0c, firmware version 01.52.00 but can't find any settings for voltage control apart from that for CPUs.
Any help would be appreciated.
Attached some images of the crashes from Health Event Log, Zenstates settings and HWiNFO64.
I recently bought two Epyc 7551 ES chips from eBay and have been encountering memory instability issues.
I followed another post here about 1st gen Epyc overclocking using Zenstates and I'm currently running 3.3GHz 1.175V with SMT off on both chips with only VRM cooling being a real issue (well, that and a memory channel not working on one of the chips, CPU 1 DIMM E). Pushing 3.4GHz leads to instabilities with overcurrent protection preventing higher clocks.
Anyway, my issue is that I am getting memory errors reported in IPMI with hard crashes, when I am running at stock (16gb Micron DIMMs at 2133MHz CL15). I was wondering if there was any way for me to overclock the SOC (asking about SOC voltages as they are currently below 0.9V, when I would run 1.05V on my old 2700X for memory stability) and ram voltages for increased stability and potentially add the ability to push 2666MHz on them. I'm running an unlocked BIOS version 1.0c, firmware version 01.52.00 but can't find any settings for voltage control apart from that for CPUs.
Any help would be appreciated.
Attached some images of the crashes from Health Event Log, Zenstates settings and HWiNFO64.