Hey everyone! I'm having some trouble with my PC setup. I have an Asus B650-E Wifi Tuf Gaming motherboard, an AMD Ryzen 7 7800X3D processor, and an ASUS TUF RTX4080 graphics card. I initially had 32GB of G.Skill DDR5 RAM (2x16GB) which was running smoothly at 6000MHz. However, I decided to add 2 more sticks because I was running low on memory sometimes.
After installing the new RAM, my system wouldn't boot at all. Eventually, I got it to access the BIOS and reset the settings, which allowed it to boot at a much lower speed of 3400MHz and recognized 64GB of RAM. I then tried applying the EXPO profile in the BIOS for the rated 6000MHz speed, but after saving that setting, the system wouldn't boot again and got stuck on a black screen. I'm wondering what might be causing this issue since the motherboard supposedly supports speeds up to 7800MHz. By the way, my PSU is 1000W. Any help would be greatly appreciated!
5 Answers
This is a common problem with DDR5 RAM and using four sticks. Even if your motherboard says it can handle 7800 MT/s, the Ryzen CPU's memory controller is typically only rated for around 3600 MT/s with four sticks. You might be able to get a stable OC around 5200 or 5600 MT/s, but honestly, it's often easier to just sell your current RAM and get a new 2x32 GB kit instead.
Absolutely right! The CPU isn’t guaranteed to reach those higher speeds with four DIMMs. It’s a bit of a lottery with RAM stability, especially when you overclock. Sure, 6000 MT/s is nice, but you may not notice much difference unless you're doing resource-heavy tasks. I think upgrading to 64GB in just 2 slots would probably give you a lot more stability.
Check out your motherboard specs closely. It may have restrictions on running overclocked speeds with all four slots populated.
Yeah, going with 4 sticks can really be a gamble. Sometimes it doesn’t even boot properly. The safest bet is usually to stick with 2 sticks of RAM.
In short, 2 sticks = fast, 4 sticks = not so much. With DDR5, having four sticks is like putting on double the load on the memory controller. If you need more memory, consider bigger sticks or prepare to tweak a lot to get it running smoothly.
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