Check compatibility

Will this part work?

Enter what you want to install the part into and the exact part name. You do not have to describe a slowdown first.

Currently checks Lenovo IdeaPad 3 15ALC6 with KCP432SS8/8 and ASRock B850M Pro RS WiFi with KF556C40BBK2-32. Other combinations still need evidence.

For example: Lenovo IdeaPad 3 15ALC6. For a motherboard, use the full model and revision if shown.
This version accepts 82KU and 82MF, or full codes such as 82KU000UUS. This is not a serial number. Leave it blank if you do not know it.
I do not know the model — help me find it
  1. In Windows, press Win + R. Win is the key with the Windows logo.
  2. Type msinfo32 and press Enter. In System Information, find System Manufacturer and System Model.
  3. If the model is a short code such as 82KU, note it separately. Find the full name on the bottom label, next to Model / Model Name. Shut down the laptop first if needed.
  4. On another operating system, start with the label or purchase documents. Do not copy S/N or send the whole System Information window.
Illustrative label, not information about your device

On a desktop, also look for BaseBoard Manufacturer and BaseBoard Product in msinfo32. If these are blank or unclear, check the documentation or board label. A CPU name does not identify the motherboard.

Check a specific purchase

This check covers documented combinations. Each “I do not know” leaves that condition unresolved.

For example: KCP432SS8/8. Copy the full part number from the label or product listing.

There are no verified rules for this model yet. We need the exact board/computer documentation, memory part number, and revision and BIOS version where relevant. A matching DDR generation alone does not confirm compatibility.

If you are unsure about opening the laptop, take the saved plan to a technician. You do not need to open the case to use this guide.