Hi everyone! I'm looking for some assistance with my aging PC build. I initially set it up with 2x8GB Crucial Ballistix RAM that runs at 3600 MHz, CL16. Recently, I found a great deal on a second RAM kit: XPG 2x8GB, also at 3600 MHz but with CL18 and RGB features. I have a motherboard that supports up to 32GB, so I thought I could mix the two kits and lower the speed if needed. However, when I install all four sticks, my system won't boot at all. I've tried disabling XMP, lowering the frequency to 3000 MHz, and manually adjusting the timings, but no luck. The RAM works fine individually, but combined they won't cooperate. Is there anything else I can try, or should I just give up?
3 Answers
Have you tried using just the new RAM kit to rule out any bad sticks? It's not uncommon to run different brands or timings as long as they're paired up correctly. Just double-check that everything's seated properly and you're not dealing with a faulty module.
What’s the model of your motherboard? Also, how are you placing the modules? It’s key to follow the right configuration when using four sticks.
Have you checked the voltage settings after disabling XMP? Usually, XMP raises the voltage to about 1.35V instead of the stock 1.2V, which might be causing issues when you set it to a lower frequency like 3000 MHz. Also, make sure you're placing the RAM correctly in the channels; it's crucial for compatibility. I’ve had success with mixing brands and timings—I've got 96GB of DDR4 at 3200 MHz running without problems, so I think you can make it work. You might need to reset to stock timings or overclock manually.
I have a MSI Z490 motherboard with an i7 10th generation CPU. I arranged my slots 1212 for the second kit, but it still doesn't boot. I'll definitely check the voltage; I might have accidentally set it back to 1.2.
It’s an MSI MPG Z490. Currently, I’m using two different configurations: the first was 1E1E, but then I tried 1212 and later 2121, but that didn’t help either.