How Much RAM Can a Lenovo ThinkBook 15 G4 IAP 21DJ Take?
Lenovo ThinkBook 15 G4 IAP 21DJ
The memory is soldered to the mainboard. It cannot be upgraded.
There are no memory slots on this model, so no RAM stick will fit. The largest configuration this laptop shipped with was 128 GB of DDR4. If you need more memory, the only route is a different laptop.
These are the factory configurations this model shipped with, based on field reports:
| Total RAM | Share of reports |
|---|---|
| 40 GB | 50% |
| 16 GB | 44% |
| 24 GB | 6% |
How we know
This answer is derived from 16 independent hardware reports for the Lenovo ThinkBook 15 G4 IAP 21DJ, of which 100% agree. We publish a model only when the reports agree overwhelmingly.
Check it yourself
On Windows, open Task Manager → Performance → Memory. It shows Slots used and the form factor directly. On Linux, run sudo dmidecode -t memory.
More Lenovo laptops
Specifications derived from linuxhw/DMI, licensed CC-BY-4.0.