When looking for a new motherboard, especially if you haven't built a new PC for a while, it's only natural to research as many aspects as possible. After all, we've all had buyer's remorse at some point, and getting the right components the first time isn't always easy. And the parts with the most potential not to be compatible are the RAM kit we chose.

In retrospect, it isn't hard to see why this is the most challenging part to choose. DDR memory has always been complicated, and it's even more so now that frequencies have skyrocketed with DDR5. The interplay between your motherboard, CPU, and RAM combines to set the maximum frequency you can get, whether you hit XMP or EXPO overclocks, how much voltage your RAM needs to be stable, and many other essential things. To help with this, motherboard manufacturers put together a Qualified Vendor List with compatible CPUs and RAM kits tested on that motherboard. But this is still just a list of what worked at one point, and should be treated as a suggestion list rather than the gospel.

What is a QVL anyway, and where can I find it?

Time to check the product page for your specific motherboard

Motherboard manufacturers put together a QVL or Qualified Vendor List as they release new hardware, and it shows the combinations of CPU and RAM that have been tested and worked on that motherboard at the time. In a perfect world, they would list every RAM module on the market and update it as new kits or BIOS updates are released. But in reality, that rarely happens in my experience, and those lists are a good starting point at launch, but can be less valuable as time goes on.

Here's a prime example I know well about because it's the computer I'm typing this from. The QVL for the Asus ROG Crosshair X670E Hero might have my CPU on it, and has some of the RAM kits that I've used over the years, but it doesn't have the Teamgroup 8,000 MT/s kit that I'm using currently. It also hasn't been updated for a while, but that's not that unsurprising, as this motherboard came out a long time ago, and updates to documentation are rare as time goes on.

But when I first got the motherboard, it was a handy thing because I didn't know much about the board and its particular quirks of support and overclocking potential, and I also didn't know much about DDR5. A handful of BIOS updates later, and RAM compatibility has matured to the point where I'm reasonably confident that any two-module kit I install will get the full EXPO speed, with minimal tweaking on my part.

What to look for as well

Reviews, Reddit, and recommendations go a long way

Once you've decided on a motherboard, RAM is often the next choice to make. Whether you know how many gigabytes you need, or want fast speeds and tight timings, you'll want to know that the kit you pick will be compatible with your motherboard. If you plan on using them at JEDEC defaults, almost any kits will work, even in the early stages after the motherboard release. If you want more performance, the QVL is certainly a good place to start, but it should be a starting point only.

Many factors go into the QVL choices. Often, they're put together from kits the manufacturer had on hand for testing, and don't necessarily represent the state of the market, or the wide choice of kits on offer. They don't continually get updated during the motherboard's lifetime, although CPU compatibility usually gets updated as those are released infrequently.

I still use the QVL to begin with, to find a kit with the capacity, frequency, and timings that I want, and then I read some reviews of that kit. I'll also search on Reddit, other social media, and some of the bigger forums to see if anyone is having issues with that kit. I don't tend to worry that much if it's not being tested on the same motherboard. While that affects the maximum frequency you can run a particular kit, it's been a while since I had booting issues.

I'll also see which RAM manufacturers are being mentioned, whether for issues or for perfect running, and which manufacturers are doing a good job overall at the time. I've found this helpful, especially at the release of a new generation of CPUs or motherboards, because it's not guaranteed that the kit I picked from the QVL will be in stock, and I want to have other options ready just in case. I hate waiting to order components, and I'm pretty sure I'm not alone.

Motherboard QVLs are less useful as time goes on

To be absolutely clear, I'm not saying don't read the QVL or that it's useless. It can be very handy, but it's only a tool, and tools are meant to be used appropriately. Buying a RAM kit that's not on the QVL might be more of a gamble when the motherboard is new, but less so once it's been on the market for a few months, as BIOS updates will have cleared up most of the compatibility issues. Treat the QVL as a starting point before you go to PCPartPicker or look for other builds with the motherboard you want to use, and you'll have a better chance of a smooth PC build.