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What is the fastest Memory that can run *4 sticks* stably on Maximus z790 hero/i9 13900k?

Ruminator
Level 7
  • Mobo: Maximus z790 Hero
  • CPU: i9 13900k
  • GPU: RTX 4090
  • RAM 1): 16GB x2/4 G.Skill Trident Z DDR5 @7800Mhz
  • RAM 2): 16GB x4 CORSAIR VENGEANCE DDR5 @6000Mh¹
  • SP: 102

TL/DNR: Is there a definitive answer about what will run the fastest with 4 sticks, stably²?


When my build was originally assembled it had 4 sticks for 6000Mhz 16GB memory. Stable. No problems. But also submax 🤮

So I obviously decided that I needMoreSpeed 🏎️ and got 4 sticks of G.Skill Trident Z DDR5 @7800Mhz.

After troubleshooting/web crawling/tweaking/twerking³, I could not boot with all 4 sticks running @7800Mhz. I could boot running them at slower speeds. For example, 6000Mhz 😂😭

To boot @7800Mhz I could only run 2 sticks in A2 and B2. But crashes while gaming. Specifically, RDR2.

So I'm going to return all 4 @7800Mhz sticks.

My decision is whether to get 4 sticks of whatever's the fastest and stable or remain with 4 @6000Mhz.

¹The 6000Mhz memory that was shipped to me has 2 different timings! 🙃 But they run stably.

²obvs, if it's too close to 6000Mhz it won't be worth it to upgrade despite ¹.

³obviously the most important step

⁴I miss Terry Pratchett

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