Hello why my cpu z shows a 400mhz instead of 1333mhz dram frequency?

Kengamingnitro5

Hi, I would like to know how to fix the issue between my ram frequency speed because when the laptop is not plugged in I only got 400mhz of dram frequency speed as cpu z speed shows, on the other hand when the charger is plugged in to my laptop it shows 933mhz, instead of getting a 1333mhz which is my original ram speed i got 2 sticks of 4gb 2666mhz, so why i am getting 400mhz of ram speed instead of 1333mhz? 

my acer laptop model is an515 - 42 

ryzen 5 2500u and rx560x 4gb graphics card

andylb

Kengamingnitro5 said:

billsey said:

Yeah, it's normal for the system to throttle things back and save power when you aren't using that many resources.

thank you for your suggestions, but sir how if I want to fully utilized my 2666mhz, how can i set my dram frequency even higher than 400mhz when it is not plugged in and higher than 933mhz when it is plugged in sir?Because i want to fully utilized my ram so that I can receive a better performance in terms of games and browsing

You can't. providing Windows is set to high performance, you are plugged into AC power and your battery is at 100% before gaming or using demanding programs, your laptop will only use what it needs, programs and games all have there own maximum performance and no amount of extra RAM will make them perform higher than they are designed to do. If your laptop needs to use more frequency to achieve max performance it will. In short you can't force your RAM to use 2666 mhz if it doesn't need it to run a program at maximum performance. When RAM is labelled 2666 mhz it means that 2666 is it's maximum  when on AC and about half that on battery, it doesn't mean that 2666 is it's standard operating speed

Please click YES if I have answered your question even if it isn't the answer you wanted, thank you

Kengamingnitro5

here is my screenshot on cpu z

JackE

Open ControlPanel. Search 'power plan'. Click 'choose power plan' in left pane. Set plan from Balanced to Performance mode. Also search 'button'. Click 'change what the power buttons' do in left pane. Click 'change settings that currently are unavailable'. Scroll down and uncheck box for fast startup. Exit. Shutdown. Turn machine back on. Machine must be plugged in and battery near 100% charged for max CPU performance. Jack E/NJ

billsey

Yeah, it's normal for the system to throttle things back and save power when you aren't using that many resources.

Kengamingnitro5

JackE said:

Open ControlPanel. Search 'power plan'. Click 'choose power plan' in left pane. Set plan from Balanced to Performance mode. Also search 'button'. Click 'change what the power buttons' do in left pane. Click 'change settings that currently are unavailable'. Scroll down and uncheck box for fast startup. Exit. Shutdown. Turn machine back on. Machine must be plugged in and battery near 100% charged for max CPU performance. Jack E/NJ

thank you for commenting, I have already tried your suggestions but still the dram frequency is 400mhz, how can i set it to 1200-1333mhz to fully utilized my ram ?

Kengamingnitro5

billsey said:

Yeah, it's normal for the system to throttle things back and save power when you aren't using that many resources.

thank you for your suggestions, but sir how if I want to fully utilized my 2666mhz, how can i set my dram frequency even higher than 400mhz when it is not plugged in and higher than 933mhz when it is plugged in sir?Because i want to fully utilized my ram so that I can receive a better performance in terms of games and browsing

andylb

Kengamingnitro5 said:

billsey said:

Yeah, it's normal for the system to throttle things back and save power when you aren't using that many resources.

thank you for your suggestions, but sir how if I want to fully utilized my 2666mhz, how can i set my dram frequency even higher than 400mhz when it is not plugged in and higher than 933mhz when it is plugged in sir?Because i want to fully utilized my ram so that I can receive a better performance in terms of games and browsing

You can't. providing Windows is set to high performance, you are plugged into AC power and your battery is at 100% before gaming or using demanding programs, your laptop will only use what it needs, programs and games all have there own maximum performance and no amount of extra RAM will make them perform higher than they are designed to do. If your laptop needs to use more frequency to achieve max performance it will. In short you can't force your RAM to use 2666 mhz if it doesn't need it to run a program at maximum performance. When RAM is labelled 2666 mhz it means that 2666 is it's maximum  when on AC and about half that on battery, it doesn't mean that 2666 is it's standard operating speed

Please click YES if I have answered your question even if it isn't the answer you wanted, thank you

Kengamingnitro5

andylb said:

Kengamingnitro5 said:

billsey said:

Yeah, it's normal for the system to throttle things back and save power when you aren't using that many resources.

thank you for your suggestions, but sir how if I want to fully utilized my 2666mhz, how can i set my dram frequency even higher than 400mhz when it is not plugged in and higher than 933mhz when it is plugged in sir?Because i want to fully utilized my ram so that I can receive a better performance in terms of games and browsing

You can't. providing Windows is set to high performance, you are plugged into AC power and your battery is at 100% before gaming or using demanding programs, your laptop will only use what it needs, programs and games all have there own maximum performance and no amount of extra RAM will make them perform higher than they are designed to do. If your laptop needs to use more frequency to achieve max performance it will. In short you can't force your RAM to use 2666 mhz if it doesn't need it to run a program at maximum performance. When RAM is labelled 2666 mhz it means that 2666 is it's maximum  when on AC and about half that on battery, it doesn't mean that 2666 is it's standard operating speed

Please click YES if I have answered your question even if it isn't the answer you wanted, thank you

i just want to know sir why my ram frequency is stable at 400mhz, but some other laptop have a fix ram frequency which is 1100mhz while mine is staying at 400mhz, i just want to boost it to give me a better performance even if my laptop is not plugged in. Anyways Thank you for commenting

brummyfan2

Kengamingnitro5 said:

andylb said:

Kengamingnitro5 said:

billsey said:

Yeah, it's normal for the system to throttle things back and save power when you aren't using that many resources.

thank you for your suggestions, but sir how if I want to fully utilized my 2666mhz, how can i set my dram frequency even higher than 400mhz when it is not plugged in and higher than 933mhz when it is plugged in sir?Because i want to fully utilized my ram so that I can receive a better performance in terms of games and browsing

You can't. providing Windows is set to high performance, you are plugged into AC power and your battery is at 100% before gaming or using demanding programs, your laptop will only use what it needs, programs and games all have there own maximum performance and no amount of extra RAM will make them perform higher than they are designed to do. If your laptop needs to use more frequency to achieve max performance it will. In short you can't force your RAM to use 2666 mhz if it doesn't need it to run a program at maximum performance. When RAM is labelled 2666 mhz it means that 2666 is it's maximum  when on AC and about half that on battery, it doesn't mean that 2666 is it's standard operating speed

Please click YES if I have answered your question even if it isn't the answer you wanted, thank you

i just want to know sir why my ram frequency is stable at 400mhz, but some other laptop have a fix ram frequency which is 1100mhz while mine is staying at 400mhz, i just want to boost it to give me a better performance even if my laptop is not plugged in. Anyways Thank you for commenting

Hi,
Your module supports maximum speed of 2400MHz, could you please post the snip of Memory speed for memory in Task Manager.
It should be related to the above or your FSB:DRAM ratio is showing asynch, this may be related to AMD chipset but can not confirm.

Kengamingnitro5

brummyfan2 said:

Kengamingnitro5 said:

andylb said:

Kengamingnitro5 said:

billsey said:

Yeah, it's normal for the system to throttle things back and save power when you aren't using that many resources.

thank you for your suggestions, but sir how if I want to fully utilized my 2666mhz, how can i set my dram frequency even higher than 400mhz when it is not plugged in and higher than 933mhz when it is plugged in sir?Because i want to fully utilized my ram so that I can receive a better performance in terms of games and browsing

You can't. providing Windows is set to high performance, you are plugged into AC power and your battery is at 100% before gaming or using demanding programs, your laptop will only use what it needs, programs and games all have there own maximum performance and no amount of extra RAM will make them perform higher than they are designed to do. If your laptop needs to use more frequency to achieve max performance it will. In short you can't force your RAM to use 2666 mhz if it doesn't need it to run a program at maximum performance. When RAM is labelled 2666 mhz it means that 2666 is it's maximum  when on AC and about half that on battery, it doesn't mean that 2666 is it's standard operating speed

Please click YES if I have answered your question even if it isn't the answer you wanted, thank you

i just want to know sir why my ram frequency is stable at 400mhz, but some other laptop have a fix ram frequency which is 1100mhz while mine is staying at 400mhz, i just want to boost it to give me a better performance even if my laptop is not plugged in. Anyways Thank you for commenting

Hi,
Your module supports maximum speed of 2400MHz, could you please post the snip of Memory speed for memory in Task Manager.
It should be related to the above or your FSB:DRAM ratio is showing asynch, this may be related to AMD chipset but can not confirm.

he here it says 2400mhz but on cpuz it only gets 400mhz if not plugged in on ac, and if it is plugged in it only have 933mhz. I want to fully utilized my ram frequency, why does it only shows 400mhz? instead of getting 1200 mhz?

billsey

If you heavily task the system, for instance by playing some games, the speed will increase as needed to your maximum.

andylb

billsey said:

If you heavily task the system, for instance by playing some games, the speed will increase as needed to your maximum.

@billsey is right. If you download a stress test app you will see your RAM and CPU running at max
Download and run Prime 95 to stress your RAM and see it's max performance figures
https://www.mersenne.org/download/

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