Acer Aspire 7 A715-42G RAM 3200 how to do it? and not lose your warranty?

evgesh

I bought a kit Crucial Ballistix SODIMM 32GB Kit (2 x 16GB) DDR4-3200 Gaming Memory https://www.crucial.ru/memory/ddr4/bl2k16g32c16s4b 
How do I turn on the 3200? operates at a frequency of 2666 MHz
Is it possible to change the RAM at home without losing the warranty?

JackE

If you don't break any tamper seal tape covering screws or the case edges you should not affect the warranty.

The maximum RAM frequency is limited by the maximum speed of the mainboard PCIe bus. The maximum bus frequency allowed is usually 1333MHz or 2666MHz for double data rate DDR4 modules. So the 3200MHz Ballistix sodimm automatically lowers its frequency to the maximum allowed by the PCIe bus. You cannot increase the maximum DDR4 bus frequency from 2666MHz to 3200MHz.

evgesh

JackE said:

If you don't break any tamper seal tape covering screws or the case edges you should not affect the warranty.

The maximum RAM frequency is limited by the maximum speed of the mainboard PCIe bus. The maximum bus frequency allowed is usually 1333MHz or 2666MHz for double data rate DDR4 modules. So the 3200MHz Ballistix sodimm automatically lowers its frequency to the maximum allowed by the PCIe bus. You cannot increase the maximum DDR4 bus frequency from 2666MHz to 3200MHz.

How? The laptop supports a frequency of 3200 MHz, now 8 GB is installed and running at a frequency of 3200 MHz.

JackE

Yes, you might have a newer production mainboard that has a higher frequency . If TaskManager memory performance tab shows the same 3200MHz DDR frequency then it is confirmed.

evgesh

JackE said:

Yes, you might have a newer production mainboard that has a higher frequency . If TaskManager memory performance tab shows the same 3200MHz DDR frequency then it is confirmed.

How do I turn it on? After installing the memory, it operates at a frequency of 2666 MHz. Is an xmp profile provided?

JackE

Sorry no if Ctrl+S shows no hidden options in the BIOS menu. If Task Manager shows 2666MHz, then that is the maximum speed the 3200MHz sodimm module is allowed to run at by the mainboard's 2666MHz memory bus.

You cannot increase the speed of the mainboard's 2666MHz memory bus to accomodate a 3200MHz sodimm. The sodimm's 3200MHz must automatically reduce to accomodate the 2666MHz mainboard memory bus.

evgesh

 if Ctrl+S shows no hidden options in the BIOS menu

Tell me how to check it?

JackE

Shut down laptop normally. Turn it back on and immediately tap the F2 key to enter the BIOS menu. Press Ctrl+S in any tab to reveal hidden options. If you don't find XMP option in Main or Advanced (if available) tabs, then your mainboard's memory bus is fixed at 2666MHz RAM speed. So the 3200MHz sodimm module will automatically reduce to 2666MHz required by the mainboard. The XMP option is an Intel specification. I doubt you will find this in a non-gaming AMD laptop.

evgesh

JackE said:

Shut down laptop normally. Turn it back on and immediately tap the F2 key to enter the BIOS menu. Press Ctrl+S in any tab to reveal hidden options. If you don't find XMP option in Main or Advanced (if available) tabs, then your mainboard's memory bus is fixed at 2666MHz RAM speed. So the 3200MHz sodimm module will automatically reduce to 2666MHz required by the mainboard. The XMP option is an Intel specification. I doubt you will find this in a non-gaming AMD laptop.

You know how to increase the memory of a vega video card?

JackE

The integrated GPU uses a fixed percentage of total RAM. So it should increase by increasing total RAM. However, the discrete GPU uses its own fixed built in vRAM and can't be increased.