Can the RAM on an Acer Chromebook R11 be upgraded?

 The RAM on most Acer Chromebook R11 models cannot be upgraded:

- The Acer Chromebook R11 models CB5-132T and CB5-132 have 4GB of RAM soldered onto the motherboard and are not user upgradeable[1][2].

- However, some R11 models like the R3-131T with the N3700 processor may support RAM upgrades up to 8GB[3]. 

- To check if your specific R11 model supports RAM upgrades, look up the full model number (e.g. R3-131T-xxxx). Models ending in -C7EF and similar typically have soldered RAM[3].

- If your R11 does support RAM upgrades, you can replace the existing module with a 1x8GB DDR3L-1600 SODIMM to upgrade to 8GB total[3][4].

In summary, while a few R11 variants allow RAM upgrades, the majority of Chromebook R11 models have non-upgradeable RAM soldered onto the motherboard. Upgrading RAM is not an option for most users looking to boost performance on this device.