Note on archived topics.
05-12-2016 11:38 PM
05-13-2016 02:30 AM
The better matched the memory is, then the better the performance, from energy usage to throughput.
32 OS have a 4GB limit on memory, so therefore PAE is implemented to overcome this barrier, BUT you may not have that capability implemented.
So you can try Piriform SPECCY to see what it reports as your memory, for instance I get this...
Total memory slots 2
Used memory slots 1
Free memory slots 1
Size 8192 MBytes
Channels # Single
DRAM Frequency 798.4 MHz
CAS# Latency (CL) 11 clocks
RAS# to CAS# Delay (tRCD) 11 clocks
RAS# Precharge (tRP) 12 clocks
Cycle Time (tRAS) 28 clocks
Bank Cycle Time (tRC) 39 clocks
Memory Usage 36 %
Total Physical 6.94 GB
Available Physical 4.44 GB
Total Virtual 8.94 GB
Available Virtual 6.40 GB
Number Of SPD Modules 1
Size 8192 MBytes
Max Bandwidth PC3-12800 (800 MHz)
Part Number M471B1G73DB0-YK0
Serial Number 328347847
Week/year 33 / 15
Frequency CAS# Latency RAS# To CAS# RAS# Precharge tRAS tRC Voltage
JEDEC #1 381.0 MHz 5.0 5 5 14 19 1.350 V
JEDEC #2 457.1 MHz 6.0 6 6 16 22 1.350 V
JEDEC #3 533.3 MHz 7.0 7 7 19 26 1.350 V
JEDEC #4 609.5 MHz 8.0 8 8 22 30 1.350 V
JEDEC #5 685.7 MHz 9.0 9 9 24 33 1.350 V
JEDEC #6 761.9 MHz 10.0 10 10 27 37 1.350 V
JEDEC #7 800.0 MHz 11.0 11 11 28 39 1.350 V
Which maybe more than you expected, but the early part is useful. The latter bit may help you to find comparable, SAMSUNG etc.
05-13-2016 07:28 AM
Run the free Crucial memory scan tool and it will report how much and what kind of memory your notebook can run.
Your notebook's memory will run better if you install 2 x 2 GB of memory vice 1 x 4 GB of memory.
That is because the 2 x 2 runs in DDR (Dual Data Rate) mode.
Now, if your notebook can take 8 GB of memory, you may as well max it out to 2 x 4 GB and be done with it.
That advice depends on the cost of the memory and your budget.
05-13-2016 07:35 AM
I would suggest 2 x 2 GB, as you already have 1 and then only need to buy 1 more, as close as you can to the existing one.
However Paul gives good advice in the once and for all step, which I would do as I run 64 bit OS's other than Microsoft.
There is a 4 GB limit and after the upgrade you may only see 3.3 GB as usable / available, without PAE you wont be able to utilise the other 4+ GB.
05-13-2016 07:40 AM
Yes, I overlooked that fact that you are running a 32 bit operating system which means that the maximum amount of memory that windows 10 32 bit can see and use is only 4 GB.
If you plan on keeping W10 at 32 bit, then you have to stick with 2 x 2 GB of memory.
If you want to install W10 64 bit then you would have to do a clean install.
Not sure if you can switch from W10 32 to W10 64 for free but you can always try it and if it doesn't, just reinstall W10 32 bit.
You can make either installation media from the link below...
To install W10 64 bit, you would have to boot from the installation media and select the 'I don't have product key' option.
Hopefully it will activate because Microsoft has a record of the PC previously being upgraded to W10.