DDR3L on Acer 4752?

Both CPU's would have the same type of memory controller. There will NOT be a difference in the type of memory used.

*Just open up the laptop to confirm. Note the following must be true:

1) unbuffered?
2) non-ECC?
3) Voltage 1.35V
4) type (SO-DIMM DDR3L 220-pin or whatever)
5) max GB per slot is... 2GB? (so 2x2GB?)
6) Frequency and CAS (i.e. 800MHz CL15)

You may have 2x1GB or 1x2GB... so you should open the laptop to see that in addition to the specs. You MAY be able to get another 1x2GB of you have just one 2GB stick. Otherwise you would need to buy another 2x2GB kit.

Even with the EXACT same specs there is no guarantee another 2GB stick would work.

If you go EBay you take your chances (I got ripped off with "Kombustor" memory even though the seller had good reviews) when I ordered a 2x2GB SODIMM kit.

NEW is fairly expensive too.. my dad has W10 64-bit with 2GB only and it works great as long as there's not too much open (like too many web browser tabs).

The SSD also helped, though we had 2xSATA 2.5" slots so I moved the HDD to be backup and installed W10 (previously Vista, then W8 for $40, then W10 for free) to a used 60GB SSD (for most people I recommend 120GB+).