My Lenovo G510 is very slow. System info shows this has 4GB ROM.

How do I know if this can be upgraded? If yes, what DDR type and where to purchase.

hi

so-dimm ram DDR3L (low voltage)

https://eu.crucial.com/compatible-upgrade-for/lenovo/lenovo-g510#memory

According to the specs I can find, the G510 has two SODIMM slots and can take up to 16GB total:

Up to 16GB DDR3-1600 MHz, 2 SODIMM slots (1 x 2GB / 2 x 2GB / 1 x 4GB / 1 x 2GB + 1 x 4GB / 2 x 4GB / 1 x 8GB / 2 x 8GB)

I checked Crucial's website and the RAM meeting these specs is end-of-life (it's an old system) but I did find these DIMMs on Amazon. You could also replace the HDD with a SATA SSD, though with such an old system you may meet a point of diminishing returns. (Edited to add: I defer to Nikos about the low-voltage RAM.)

Thanks, anyway to know if its DDR3L.or DDR3?

Thanks, Still trying to figure out of its ddr3 or ddr3L without opening and checking.

I am considering adding an 8gb to the empty slot. The first slot is 4gb.Do you think mixing 2 different memories will work?

hi

quote : .....Thanks, Still trying to figure out of its ddr3 or ddr3L without opening and checking....

https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-g-series-laptops/lenovo-g510-notebook/80a8/parts/display/compatible?linkTrack=Caps%3ABody_SearchProduct&searchType=4&keyWordSearch=G510%20Laptop%20%28Lenovo%29%20-%20Type%2080A8

fill in your serial number and select commodity = memory, all are DDR3L

I am considering adding an 8gb to the empty slot. The first slot is 4gb.Do you think mixing 2 different memories will work?

yes it will work, but not as dual channel.