I've noticed that my RAM is showing as running at 2600 MHz according to CPU-Z, while I'm pretty sure it's rated for 5200 MHz. In the BIOS, it looks like it shows 4000 MHz. I'm really confused about what speed my RAM is actually functioning at. I tried enabling XMP, and it did train the RAM, but as soon as I logged into Windows, I ended up with a BSOD. I even experimented with another profile, but it didn't post, and I had to force a reset. Given my setup, which includes an i7 12700KF, an Asus Z790 Max Gaming Wi-Fi 7 motherboard, a 5090 GPU, a 1200W PSU, and 128 GB of Corsair RAM (4x32 GB sticks rated for 5200 MHz), I can't help but wonder if the mix of brands could be causing issues. I'm hoping to stabilize this without having to return and repurchase. Any advice?
5 Answers
You might just be misinterpreting the readings. 2600 MHz is expected for RAM that’s rated at 5200 MHz because of how DDR works. The effective speed is indeed 5200 MHz when you double that base clock. And make sure to confirm that XMP is properly set up in the BIOS!
For those BSOD issues, it might help to gather crash dump files for a deeper analysis. If you can boot into Windows or Safe Mode, look under C:WindowsMinidump for any logs. If you find some, zip them up and share them on a file host that works. Having more dump files can really help in pinpointing the issue!
And remember to follow that guide on configuring your system to create small memory dumps for the future. It might help prevent this confusion!
And just so you know, the 5200 MHz you see is measured in MT/s, while CPU-Z reports the base clock in MHz. Always remember to double it for the effective speed! Have you tried updating your BIOS as well? That could help with stability.
Lastly, several users have noticed issues when mixing RAM brands, even if the specs seem the same. Just keep that in mind as you troubleshoot this; it might be worth trying a single kit to see if it resolves the issue!
It sounds like your RAM is actually fine! The 2600 MHz reading in CPU-Z is the base clock speed before doubling it for DDR (Double Data Rate) technology. So, when you see 2600, just multiply by 2 to get the effective rate of 5200 MHz. It’s all working as intended!
Yeah, also check if your BIOS settings are showing 4000 MHz with XMP on. It can sometimes confuse things!