upgradation of my laptop ram

[SENORMAILMAN]

Hello i am writing to enquire about upgrading my laptop ram. I am currently using the standard ram of 4 gb provided to me along with my laptop. But now I want to have more memory. My processor is a core i5-2430 cpu @ 2.40 GHz.  I want to know as to how much and of what speed of  ram can I install on my pc.  my product serial no. is SCH1321APY and prodcut no. is QG477PA#ACJ

[Huffer]

Here is the Service Manual:

Manual

You can actually have up to 16 gigs of RAM or 2 x 8 gig modules. 

See p. 66 for "how to". 

You need 2 of these modules or equivalent:

8-GB (DDR3, 10600, 1333-MHz) 634091-001

https://www.amazon.com/Kingston-Technology-Notebooks-KTH-X3B-8G/dp/B007BPOHLK/ref=sr_1_1?ie=UTF8&qid...

If this is "the Answer" please click "Accept as Solution" to help others find it. 

[SENORMAILMAN]

so does that means i cannot use 1600 mhz ram on my laptop and only 1333 mhz ram ? please reply.

[Huffer · Accepted solution]

Yes. Exactly. You can install 1600 mhz but it runs at 1333 so you might as well get the correct memory. 1600 may downclock but safer to buy the specified memory.