Updated RAM but now the system fails to start after adjusting the memory speed.
Updated RAM but now the system fails to start after adjusting the memory speed.
I upgraded my system from 2x8GB at 3200MHz to 4x8GB at 3200MHz, using the same Corsair Vengeance LX RAM already installed. After updating the BIOS and setting the frequency to 3200MHz, the PC runs smoothly without any display output or a red CPU light on the motherboard. This issue resets itself when I try to change the frequency again. I also swapped from a Ryzen 5 3600 to a Ryzen 7 5800X3D and added more RAM, but performance remains stable until I adjust the RAM speed. It seems the problem isn’t related to the CPU itself.
The RAM seems different. For memory speed, use XMP/DOCP instead of changing the clock manually. Are you using the newest BIOS?
here are the screenshots. observe that one kit fits in slots 1 and 3 while the other is in 2 and 4, based on what rammon refers to. mention that the ram functions well at 3000 MHz (note the blue screen appeared at 3133MHz) and it only fails above 3200MHz. i tried manually boosting the clock and applying XMP, but both cases still caused the same problem.
Yes, different RAM modules work well. Make sure your CMOS is cleared. Place the lower-performing RAM in the main dual channel slots and the higher-quality RAM in the secondary DIMM slots. Power on the PC and apply the XMP profile for the slower RAM. This should provide stability. If issues persist, reverse the RAM positions and try again. Note: Mixing incompatible RAM types may cause problems. Good news—some models like the 5800X3D handle various speeds consistently due to their strong L3 cache. So, if loading XMP and setting it to 3000 works for you, you're safe.
This seems to be a reliable result, or at least it's functioning properly so far. However, I didn't upgrade to different RAM modules; I thought it was worth noting that I purchased two identical kits roughly two and a half years apart, each containing one Micron and one Samsung stick. I'm puzzled since both happened more than two years after the last purchase, making it unlikely by chance. I shared photos of all the RAM units (two on top are Samsung, two on the bottom are Micron) along with their packaging—left box is new, right box is from 2020. Probably I won't be buying RAM from Corsair again. Thanks again for your assistance.
The top and bottom panels appear more recent. Are you certain you didn’t swap them during setup? Yes, Corsair often updates OEM versions for cost, supply, or problems, but mixing different RAM types in one pack is unusual. Thank you for your assistance.
I’m completely sure they’re different parts—one from Samsung and the other from Micron. In your first screenshot from Rammon, you can see them matched in slots 1,2, 3,4. Samsung had the RAM installed in slot 2 and 4 for over two years before replacing it with new ones. I didn’t take out the old stick when swapping; instead, I just installed two fresh sticks, which helped keep things clear. Given how long this has been happening, it’s either really lucky or they follow a standard process, but I don’t understand why they’d do it this way.