[qaetosh]

I want to upgrade my Dell Inspirion 5558 laptops RAM, I got now 4GB 1 module
(DDR3 - 4GB PC3-12800 Samsung), can I add at 2nd module Kingston 8GB DDR3 PC12800 or I need 4 GB module?

 

[joeten]

Hi,and welcome to TSF it should work, though I would have gone with Crucial as they usually are very compatible. specs here and ram it will run with http://downloads.dell.com/Manuals/a...iron-15-5558-laptop_Reference Guide_en-us.pdf

 

[qaetosh]

Big thanks, well that kingston was just for an exemple.
Didn't know they got this spec docs up in net

 

[joeten]

Dell support pages have all manuals and docs, drivers etc.
Crucial are usually a good call, you can find the ram on their site but get elsewhere if it works out cheaper it will still have the same warranty.