09-26-2017 09:04 AM
ideapad S510P (type:20298, no touch)
memory: 2 slots avaible (only one module 4gb installed from factory default)
i want to upgrade the ram, from one module 4gb (factory default) to new two module 2x4gb=8gb, so i want to know if this my laptop supports "Dual Channel" tecnology ?
Does anyone know this information with certainty?
09-26-2017 11:07 AM
Specifications for RAM: DDR3L-1600MHz SODIMM x 2 (max 16 GB)
It is not specific on the hardware manual about dual channel features (page 26).
This can also be verified via specific tools such as this.
Hope this helps answer your query.
09-26-2017 11:41 AM
I know the i7-4500U supports the technology, but to make two memory module work in dual channel, the motherboard must also support this technology, or maybe am I wrong? can you know if the motherboard of the ideapad s510p supports the dual channel? or there is a "tool" to see this?
09-26-2017 02:59 PM
Using the same tool (CPUZ) would also allow you to review the chipset that your motherboard carries.
Pairing the current 4GB RAM with another 4GB RAM would surely have a big performance impact especially with multiple browsers or VR apps.
Dual technology would even appear non-significant to feel the difference as concluded here in this article.
" the dual-channel mode doubles the bandwidth between the CPU and the memory, it does not mandatorily result in a perceptible impact on the performance of a specific program. In most of the games we tested, there was not significant performance gain when we enabled the dual-channel mode."
09-27-2017 12:52 AM
this fact may be partly true and in part not true, depends of the type of work-program, especially for me that I use this laptop as audio-video editing-daw workstation, however this theory does not help me because i have to buy new ram to get a total of 8gb and not knowing if this ideapad s510p supports the "dual channel" this will affect my cost-performance ratio for the right purchase.
at this point the options are three:
1_keep the factory memory (samsung 4gb) and add a new 4gb memory for a total of 8gb so i would have two different memories but a total of 8gb. cost 35 euros.
2_remove the factory memory (samsung 4gb) and install a single new 8gb memory module (I might also leave the samsung factory memory up to a total of 12gb). cost 70 euros.
3. remove the factory memory (samsung 4gb) and install two new memory modules (2x4gb) to get 8gb in dual channel if the motherboard supports it. cost about 70 euros.
i don't know which is the best choice ( cost/performance)
09-27-2017 08:59 AM
Did CPUZ show a Mobile HM86 Express chipset?
"When paired with the Mobile Intel® QM87 or Mobile Intel® HM86 chipset, these platforms support dual-channel DDR3L memory at 1600 MHz (ECC optional)"
With regards to cost and performance even in the long run, modified option 1 is the best choice in my opinion.
Just match the stock 4GB with the same specification (same frequency voltage type and capacity and best yet same part number).
It does not necessarily be a kit but what is important is OEM certified instead to operate dual channeling.
As discussed here "dual channel works by accessing two memory modules in parallel, i.e., at the same time. As each pair of memory modules is accessed as a single entity by the memory controller, the modules at each pair must be identical."
As per cost concern, noting of the age of the machine itself. I would not personally invest in a DDR3 RAM seeing that DDR4 are now in the current laptops that most likely be obsolete in the coming years.
09-27-2017 12:05 PM
apparently CPU-Z does not detect the "HM86 express mobile" chipset but the "haswell-ULT" as can be seen in the screenshot. I do not know if this chipset supports dual channel technology.
Also, I contacted both kingston and crucial, one told me that the ideapad s510p supports dual channel, while the other has told me that it does not support the dual channel....who got the key?! 8 ( ?! confused!?!
Regardless of the choice you prefer (number 1), unfortunately it is very difficult to find for sale an identical factory memory module installed by lenovo (samsung m471B5173bh0-yk0), so I should buy a module of another brand with the same class and speed, hoping they will work well together with windows and my audio-video editing programs.
09-27-2017 01:15 PM
So it does have Haswell-ultra chipset.
OEM recommended part are listed here in page 80 item 12 hardware manual.
12 DDR3L 1600 4GB M471B5173BH0-YK0 4GB DDR3L 1600Part number: 11201966
12 DDR3L 1600 4GB HMT451S6AFR8A-PB 4GB DDR3L 1600 Part number: 11201300
12 DDR3L 1600 4GB RMT3170EB68F9W-1600 4GB DDR3L 1600 Part number: 11201512
12 DDR3L 1600 4GB SM321NQ08ICF 4GB DDR3L 1600 Part number: 11201834
12 DDR3L 1600 4GB MT8KTF51264HZ-1G6J1 4GB DDR3L 1600 Part number: 11201342
If specific Samsung m471B5173bh0-yk0 is not available, then any of those listed above will do.
Else ensure that same specification is as 4GB DDRL (low voltage) 1600 CL 11 to match.
Check return options s purchasing with resellers just in case.