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.
This is great! Do you have any thoughts or leads on whether it’ll hit 128gb (2×64)?
Not sure, but ChatGPT thinks 2x64GB is unlikely to work with this board.
Here’s what it said:
Practical Recommendation
64 GB (2×32 GB) — very likely to work and has been confirmed by other users.
128 GB (2×64 GB) — very unlikely to work; most prebuilt motherboards with the B660 chipset and BIOS geared for OEM use won’t recognize this capacity or may refuse to boot.
———-
Note that ChatGPT cites/links to my page here as the proof for the 64GB support, so take it all with a grain of salt. 🙂
From a fellow Torontonian, I salute you for posting this and saving me hours of research.
You’re welcome, glad it was helpful. I just checked the current price on this, wow.. $689. When I bought it in June 2025 it was $123.
Hello, well it has been almost 6 months since you posted this. How is your computer running. I just had 2 of the 32gb fail on my same machine. Just curious how yours has held up.
My machine is still running stable. No issues whatsoever at this time.
One issue I had with this machine in the past was random hard lockups that occurred when moving the mouse while doing light tasks like web browsing in Windows 11. I solved that in Device Manager -> Universal Serial Bus controllers -> Each USB Hub/Host Controller -> Power Management for each one -> Uncheck “Allow the computer to turn off this device to save power”