I bought the Lenovo Gaming 17IAB7 desktop PC in the spring of 2023. I don’t have much time for tinkering with proper PC builds anymore, so decided to give a prebuilt a shot, this time.

One of the first upgrades this thing needed was more RAM as it only came with 16GB. From some quick research, it does not support XMP settings, so many types of RAM will run at a slower fallback DDR4 speed of 2133 Mhz.

Now that it’s 2025, I wanted 64GB for running local LLMs and virtual machines. And it should run at full speed (3200 Mhz).

Lenovo claims the maximum supported RAM is 32GB.

Searching this reports the same via various AI results, and I didn’t find any human posts to confirm it, other than people disappointed that their newly upgraded RAM only runs at 2133 Mhz (due to the lack of XMP). Only some RAM will run at 3200 Mhz on this board.

No clear answer on supported RAM

I decided to take a gamble on a Crucial kit.

I can confirm that the following 64GB kit works fine on my rig and is running at 3200 Mhz: Crucial Pro 64GB DDR4 Kit – CP2K32G4DFRA32A.

^ Not an affiliate link! I hope this helps someone out there.

I ran Memtest86 for 4 passes (just under 6 hours) to be sure.

Confirmed 64GB RAM at 3200Mhz on Lenovo 17IAB7

I’ll use this for ~5 years and do a proper build next time.

This was my first prebuilt since 1999. The last one was a eMachines eTower 366c with a Cyrix MII CPU, known as one of the worst PCs of all time! But I loved it, anyway. It’s never obsolete, in my heart.