Which DDR3 for my notebook - Samsung NP300E5Z adata

[ivanzj]

hello everyone,
I have a speed issue with my notebook (NP300E5Z, Intel Core i3 2350M) and I thought adding RAM memory could speed up a little bit.
The problem is, that i am not sure which modul should i buy.
According to the my research, the current module is 4gb adata 1333MHz, but CPU-z tool shows(Memory Frequency 665.1 MHz (1:5))

Now, considering old processor, will additional RAM help me to speed up things?
How much memory is supported by this notebook model? After some research, i find that this notebook can have up to 8 GB of memory
Should i stick to adata manufacturer, or is it ok to buy 1333 mhz CL9 from other manufacturers?

Thanks!

PFA images of my current RAM and report from CPU-Z

http://i.imgur.com/TiAqGxH.jpg
http://i.imgur.com/fAy78Nn.jpg

Chipset
-------------------------------------------------------------------------

Northbridge Intel Sandy Bridge rev. 09
Southbridge Intel HM65 rev. B2
Memory Type DDR3
Memory Size 4 GBytes
Channels Single
Memory Frequency 665.1 MHz (1:5)
CAS# latency (CL) 9.0
RAS# to CAS# delay (tRCD) 9
RAS# Precharge (tRP) 9
Cycle Time (tRAS) 24
Command Rate (CR) 1T
MCHBAR I/O Base address 0x0FED10000
MCHBAR I/O Size 19456
MCHBAR registers

Memory SPD
-------------------------------------------------------------------------

DIMM # 1
SMBus address 0x52
Memory type DDR3
Module format SO-DIMM
Manufacturer (ID) A-Data Technology (7F7F7F7FCB0000000000)
Size 4096 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number AD73I1C1674EV
Serial number 79AB0500
Manufacturing date Week 11/Year 12
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 5.0-5-5-14-19 @ 380 MHz
JEDEC #2 6.0-6-6-17-23 @ 457 MHz
JEDEC #3 7.0-7-7-20-27 @ 533 MHz
JEDEC #4 8.0-8-8-22-30 @ 609 MHz
JEDEC #5 9.0-9-9-24-33 @ 666 MHz

 

[Legohouse]

Hello,

Yes, 8GB of memory is the maximum this Samsung Laptop supports. It has 2 slots and max per slot is 4GB. Yes, adding memory helps speeding up the system. No, you don't have to match the manufacturer if you are matching the memory specs that'd do. Something like this one should work fine.