ASUS P7P55 LX
Motherboard, from 2010 24 hardware reports
Memory

Up to 16 GB
4 full-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable
Yes. 4 slots, up to 16 GB seen working.
It takes DDR-1333 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR-1333 DIMM
- Most seen working
- 16 GB in two or more machines
- Firmware says
- 16 GB maximum
- How sure
- 24 of 24 reports show this layout
See 4 GB DDR-1333 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 24 hardware reports of this motherboard. Sources and method. Updated 9 Nov 2026.
4 full-size slots
Illustration Questions
Can I upgrade the RAM in the ASUS P7P55 LX?
Yes. 4 slots, up to 16 GB seen working. It takes DDR-1333 full-size sticks (DIMM).
What type of RAM does the ASUS P7P55 LX use?
DDR-1333 full-size sticks (DIMM).
How much RAM can the ASUS P7P55 LX take?
Machines in the reports run up to 16 GB. That matches the 16 GB maximum the firmware reports.
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 P7P55 LX.