Prime95 fails due to the memory

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Joined
12 Sep 2020
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5
Hi Everyone, i've a problem with my newest build. The build fails the small fft test with Prime95 if i set the ram at 3600 or up, no matter the voltage, i tried also to 1.40v but no luck

I tried different things increasing voltage, disabling XMP, changing timings, the only thing that work is lowering the frequency to a maximum of 3400: this way the prime95 pass for more that 1h. I was able to exclude a CPU problem because at 2667mhz lowest frequency, the CPU pass the prime95 for more than an hour, also undervolted to 1.20v

My parts list is the following

Ryzen 3900x
Mobo Gigabyte Aorus X570 I pro wifi
Crucial Ballistix Max RGB 4000mhz
cpu Cooler Mugen5 tuf rgb
Case ITX InWin A1

I read somewhere else that i could try using Vcore offset +100 mV, or in another discussion, where the problem was related to the memory switch VDDCR SOC Voltage to offset mode but don't know if this is the case, and plus i don't know where i can find it in the Gigabyte BIOS ...(not very familiar with it, first time gigabyte user)

Can someone please help me ? Really really upset i can't use my new build safely :(
 
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