Does the E5-721-46M0 motherboard support dual channel RAM?

Scotch2021 · August 2021

Just upgraded RAM on my Mother's old laptop with new 2x4Gb 1600 MHz Kingston kit. CPU-Z shows, that system still works in Single chanel on 800 MHz. If this laptop really supports dual channel mode? Should I use advanced BIOS options to ajust frequency and double channel work and how to do that? Actual Motherboard Acer EA70_BE with AMD K16 IMC rev 00 and AMD Kabini FCH rev.8.2. Thx in advance.

Easwar · August 2021

Hi Scotch2021,

The ranks of the RAM has to match if you want it to run in dual-channel. You can use HWiNFO to find the voltage and rank, and other information as well.

Scotch2021 · August 2021

Thank you for your comment, but the match is not the point. Memory kit provides absolutely matching RAMs.

Batareika007 · August 2021

Hi Scotch2021,

I don't sure but lest check it on acer's support.

try to go here https://www.acer.com/ac/en/ID/content/support-product/5416;-;

chose Product Details and search for your model by serial number, I think there will be show if it support dual Chanel.

Leostat · August 2021

Can you post a screenshot? It should support dual channel and the 800mhz is expected as Its DDR , double data rate

Scotch2021 · August 2021

Leostat said:

Can you post a screenshot? It should support dual channel and the 800mhz is expected as Its DDR , double data rate

Please find attached

Scotch2021 · August 2021

Batareika007 said:

Hi Scotch2021,

I don't sure but lest check it on acer's support.

try to go here https://www.acer.com/ac/en/ID/content/support-product/5416;-;

chose Product Details and search for your model by serial number, I think there will be show if it support dual Chanel.

Thank you, this was the first thing done, but support section does not contain any information about dual channel mode. All what i have is manufacture' spec (see attached).

Leostat · August 2021

My bad, it looks like the processor doesn't, I am supprised! From the spec sheets the AMD APU was only single channel sorry about my mistake before

https://www.cpu-world.com/CPUs/Puma/AMD-A4-Series A4-6210.html

Scotch2021 · August 2021

Batareika007 said:

Hi Scotch2021,

I don't sure but lest check it on acer's support.

try to go here https://www.acer.com/ac/en/ID/content/support-product/5416;-;

chose Product Details and search for your model by serial number, I think there will be show if it support dual Chanel.

Thank you, this was the first thing done, but support section does not contain any information about dual channel mode. All what i have is manufacture' spec (see attached).