Why won't my PC boot with RAM over 4000MHz?
Asked by
TechGuru92
I'm having trouble boosting my RAM speed beyond 4000MHz. Whenever I try to set it higher, my computer fails to boot up. I've updated my BIOS to the latest version and switched on XMP, but it still won't turn on. I even tried manually increasing the DRAM settings, but anything over 4000MHz leads to a black screen, and after a few minutes, it prompts me to press F1 to return to the BIOS. I've done some testing with Memtest86 as well. Here's my setup:
Processor: i9-13900kf
Motherboard: ROG STRIX B760-F Gaming Wi-Fi
RAM: XPG Lancer 2x16GB 6000MHz DDR5
Graphics Card: RTX 5070 TI
Power Supply: Corsair RM850e. Any advice would be appreciated!
Answers
It sounds like you might be pushing the memory too far for what your system can handle. Just to clarify, some motherboards have limitations on RAM speeds based on CPU compatibility. When you activate XMP, it should automatically set the RAM to its intended speed, which in your case would be 6000MHz. If that's not working, it could be worth checking if you're exceeding the motherboard's rated specs or trying out the RAM in a different slot. Also, sometimes, lowering the speed slightly can make a difference for stability. Let me know how it goes!
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Make sure you’re not trying to reach double the effective speed. If you're activating Expo, which is intended to do the same thing as XMP, it should theoretically set your RAM to 6000MHz without issues. If your PC still fails to boot, it’s worth resetting the BIOS to defaults and trying again. You might also want to check if your RAM sticks are seated properly or if you need to update the memory training settings in the BIOS.
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