ASUS PN40
Motherboard, from 2018 13 hardware reports
Memory
Up to 16 GB
2 laptop-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 16 GB seen working.
It takes DDR4-2400 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2400 260-pin SO-DIMM
- Most seen working
- 16 GB in two or more machines
- Firmware says
- 8 GB maximum (often wrong, so we show what machines run)
- How sure
- 13 of 13 reports show this layout
See 8 GB DDR4-2400 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 13 hardware reports of this motherboard. Sources and method. Updated 9 Nov 2026.
2 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the ASUS PN40?
Yes. 2 slots, up to 16 GB seen working. It takes DDR4-2400 laptop-size sticks (SO-DIMM).
What type of RAM does the ASUS PN40 use?
DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the ASUS PN40 take?
Machines in the reports run up to 16 GB. The firmware reports a maximum of 8 GB, a figure that is often wrong.
Is this my motherboard?
The model name is printed on the board, usually between the memory slots or near the CPU socket. In Windows, open System Information and look at "BaseBoard Product"; it should read PN40.