Changing RAM in hp notebook

[Shaurya_mittal]

I have a hp pavilion DM4-1024TX entertainment series notebook with in-built 3GB ram but my pc has started to lag due  which I've started to think to change/upgrade my Ram capacity to 8 GB with Corsair 8 gb ddr3l 1600Mhz 1.35V ram. my question is that my product specs says i can upgrade it to 8gb DDR3 ram, So is there a difference between DDR3 and DDR3L

configuration?

and is there a way i can speed up my system too.

and moreover, my pc had crashed few months back which resulted my internal 500GB hard disk space to minimize to just 80-90GB. Can i recover those lost space too?

Regards

[Zincas · Accepted solution]

Hallo @Shaurya_mittal

Here is the specs for your computer

Link: http://h10032.www1.hp.com/ctg/Manual/c03106715

page: 10 in the online PDF.

But also here.

2 SODIMM slots

Customer-accessible and upgradable

Supports up to 8 GB of system memory

DDR3, 1066-MHz, dual-channel memory (DDR3 1333 MHz downgraded to DDR3 1066 MHz

Supports the following configurations:

8 GB (4 GB×2)

6 GB (2 GB×2 + 4 GB+1)

4 GB (2 GB×2 or 4 GBx1)

3 GB (1 GB×1 + 2 GB×1)

2 GB (2 GB×1) or 2 GB (1 GB×2)

1 GB (1 GB×1)

Hope it helps you.

Br

[Huffer]

DDR3L is 1.35 volt and DDR3 is 1.5. You do not need and should not buy DDR3L. Use DDR3-1333 or -1066 SO-DIMM.

On that model series with the 1st gen Intel Core processor it is critical that you use low density modules...i.e they have to have 8 black blocks on the side of the module and not 4. 

Like this:

https://www.amazon.com/Samsung-PC3-10600-1333MHz-SO-DIMM-Upgrade/dp/B003XN3BZC/ref=sr_1_2?ie=UTF8&qi...

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