3 Ways to Find Your Motherboard's Max RAM Per Slot

Check the manufacturer’s spec sheet Look up your motherboard model online. The product page or manual will list max capacity per slot, like “32GB per slot,” and total supported RAM.

Don’t rely on the CPU alone A CPU might support 128GB, but the motherboard’s BIOS and traces can limit per-slot size. Stick to the QVL (qualified vendor list) for certainty.

Use a compatibility tool if you can’t find the manual Search “[motherboard model] memory specification” or use Crucial’s compatibility tool. They’ll tell you max per slot without digging through PDFs. For mainstream boards from the last 5 years, two-slot boards almost always support 32GB per stick; four-slot boards on older chipsets might cap at 16GB per slot.