If you only need 1.71v VTT for 181 Bclk, why do you need 1.25v for 190? Try 1.2 or 1.225v. Too much VTT can cause instability.
Also, I have found that Vcore is responsible for 124s as well as VTT.
If you only need 1.71v VTT for 181 Bclk, why do you need 1.25v for 190? Try 1.2 or 1.225v. Too much VTT can cause instability.
Also, I have found that Vcore is responsible for 124s as well as VTT.
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