English Community

Lenovo NotebooksLenovo P, Y and Z series Notebooks
All Forum Topics
Options

0 Posts

02-05-2020

US

0 Signins

0 Page Views

  • Posts: 0
  • Registered: ‎02-05-2020
  • Location: US
  • Views: 0
  • Message 1 of 7

Motherboard RAM compability

2020-02-05, 13:28 PM

Hello!

I Have Lenovo z50-75.

LENOVO-Lancer-5B3 Motherboard with samsung m471b5173db0-yk0 4gb ddr3 ram mhz and another ram with same qualities but the diagnostic program and other test programmes say that my ram works only with 800mhz instead of the actual 1600mhz. Is the motherboard compatible with the memories, or is there any solution to make the memories work with 1600mhz?
Thanks.
Mate

Reply
Options

20 Posts

01-19-2020

SG

21 Signins

170 Page Views

  • Posts: 20
  • Registered: ‎01-19-2020
  • Location: SG
  • Views: 170
  • Message 2 of 7

Re: Motherboard RAM compability

2020-02-05, 13:48 PM

Good Day,

 

Could you provide a bit more details?

With the original RAM, did you get 1600Mhz when running the tests?

Did you only get 800Mhz after adding the new one or installing only the new one?

What tests did you run?

 

In case you were wondering, according to your product specifications, your laptop can support 16GB, 1600Mhz RAM

 

https://psref.lenovo.com/syspool/TempFile/cache/cced7171-0350-4f5a-8753-5c970711fca8/Lenovo_Z50_single_model_202002050849.pdf

See page 2


Thanks

Reply
Options

0 Posts

02-05-2020

US

0 Signins

0 Page Views

  • Posts: 0
  • Registered: ‎02-05-2020
  • Location: US
  • Views: 0
  • Message 3 of 7

Re: Motherboard RAM compability

2020-02-05, 13:59 PM

I ran Lenovo Diagnostics tools which wrote 800mhz. 
I Didnt ran diagnostics before where i could see 1600mhz
In other topic I saw maybe its writing 800mhz but i have to multiply it 2x because something like it reads 2 sides at same time or something like that. Sorry if its not so understandable, I think you know what I mean.

Reply
Options

20 Posts

01-19-2020

SG

21 Signins

170 Page Views

  • Posts: 20
  • Registered: ‎01-19-2020
  • Location: SG
  • Views: 170
  • Message 4 of 7

Re: Motherboard RAM compability

2020-02-05, 14:15 PM

Good Day,

 

I think understand.

However, so that we don't misunderstand each other, we are talking about the RAM you are using is DDR3, which is abbreviated for Double Data Rate. This effectively means the RAM transmit twice the data (double the frequency) per clock cycle as compared to the previous technology - SDRAM (Synchronous Dynamic Random Access Memory), which only sends 1 data per clock frequency.

Some software tests will only show single frequency and you need to double it to get the effective frequency.

 

You could try the following

1) Open Task Manager, go to the performance tab, look at the memory. It would state the speed there.

2) Open Command Prompt, type "wmic MEMORYCHIP get Speed" enter

 

Hope this helps

Reply
Options

0 Posts

02-05-2020

US

0 Signins

0 Page Views

  • Posts: 0
  • Registered: ‎02-05-2020
  • Location: US
  • Views: 0
  • Message 5 of 7

Re: Motherboard RAM compability

2020-02-05, 14:41 PM

Alright. 
Thank you for your help, and im especially thankful for the very fast answers!
Have a nice day!

Reply
Options

20 Posts

01-19-2020

SG

21 Signins

170 Page Views

  • Posts: 20
  • Registered: ‎01-19-2020
  • Location: SG
  • Views: 170
  • Message 6 of 7

Re: Motherboard RAM compability

2020-02-05, 14:45 PM

You are most welcomed.If possible, let me know the results if you run the above mentioned.

i am also curious about the results.

Thank you

Reply
Options

0 Posts

02-05-2020

US

0 Signins

0 Page Views

  • Posts: 0
  • Registered: ‎02-05-2020
  • Location: US
  • Views: 0
  • Message 7 of 7

Re: Motherboard RAM compability

2020-02-05, 14:50 PM

The results were the expected. Both cmd and task manager have shown the 800mhz. probably because of the ddr thing you mentioned. :)

Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save