美光E-Die在Zen1和Zen2的表現 - 3C

By Xanthe
at 2019-12-09T19:24
at 2019-12-09T19:24
Table of Contents
上個月換換病發作,記憶體先到手
就順帶測了美光E-Die在Zen1和Zen2的表現
==Zen1==
CPU: 1700X
MB: ASUS PRIME B350-PLUS
RAM: 美光 Ballistix Sport Sport LT 3200 8GB*2
開啟DOCP,全預設跑3200CL16,過測。
嘗試超時脈,最多跑到3333CL16過測,
3400以上無論是加電壓或是放寬時序皆無法穩定。
嘗試縮時序,3333CL15就不穩,放棄,改以3200做目標,
最終可穩跑3200CL14-17-16-32
https://i.imgur.com/93AYyv6.png
在Zen1的小結論:
即使是B350這種入門版搭配Zen1,美光E-Die也能達到3200CL14,
可說是非常超值。
==Zen2==
CPU: 3800X
MB: ASUS TUF GAMING X570-PLUS (WI-FI)
RAM: 美光 Ballistix Sport Sport LT 3200 8GB*2
開啟DOCP,先直上3600,不穩,需小加電壓到1.36V就過測了。
採用DRAM-Calculator-for-Ryzen建議的時序,
嘗試加電壓到1.42V上3733CL16,過測。
挑戰3800,1.45V 3800CL16過測:
https://i.imgur.com/VX2lbUR.png
但此時要對VDDG加壓到1V,FCLK才能上1900MHz,
而且動到VDDG會對CPU的超頻穩定有負面影響,CPU要降50MHz才能穩跑,
最終以CPU時脈優先,選擇CPU 4.35GHz+DDR4-3733的組合
開始縮時序,
發現美光E-Die對tRCD十分的要求,設為18就不穩,17就不開機,
Gear Down Mode也是關不掉,開啟後CMD設2T降頻至3200也是不穩,就保持開啟,
最終3733CL16-19-14-36
https://i.imgur.com/5gvC6Jh.png
結論:
除非對於時序十分的在意,否則美光Sport LT是經濟實惠的好選擇。
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