Solved Will DDR3 1666 slot work with older DDR3 1333 mem stick? (laptop)

[Alex1986]

Hello my old laptop Acer aspire 7551g had 4gb DDR3 1333.

The new one is Lenovo G500s with DDR3 1single 1666 so i have one slot left.

So DDR3 1333 + DDR3 1666 will work or not?

The goal is to have 8gb ram so i can cheak if Watch Dogs still lag when driving (i know one stupid game not worth it?)

What i want to know is is it safe to try?

So thank you for answears.

 

[Alex1986]

Bump...

 

[LMiller7]

Is it safe to try? Yes
Will it work? Maybe

In theory any combination of compatible RAM should work together but in the real world that isn't always the case. For best results it is always best to use matched modules. Differences in size, speed, or even manufacturer can cause problems.

If it works all modules will run at the speed of the slowest.

Be aware that only a 64 bit OS can use more than 4 GB RAM.

 

[Alex1986]

Thanks i was hoping for this answear i will try it tommorow when i have time.

Will i need to unplug battery too? too be safe? i never added or removed anything from laptops it's my secound one

PS. Forgot to mention the reason i ask why it's safe is becouse i have no idea what died in old laptop so the ram could be dead or not...i just ordered new laptop since quarante was over.

 

[LMiller7]

Unplug the battery and ac power and be sure the computer is completely shut down.

 

[Alex1986]

Morning just saying so far it works any good software i can cheak how this memory works now? bios only shows 8GB same with windows but im interested if it works in Dual Channel maybe?

EDIT: Okay here is info about ram from cpu-z what can you guys tell me and thanks for help from begining



Should i be worried that new one works at 1.35 Voltage and old one 1.5V?

The old mem stick is Samsung and new is from Ramaxel.

 

[Phone Man]

Use this to look at your memory. Do NOT use the big green download button, its a different program. Use the links to the right circled in red.

CPU-Z CPUID - System & hardware benchmark, monitoring, reporting




You can also run this memory test to see if they play nice together.

PassMark MemTest86 - Memory Diagnostic Tool

Jim

 

[Alex1986]

Well Cool Man i did post info from cpu-z 15 minutes ago look up

"EDIT: Okay here is info about ram from cpu-z what can you guys tell me and thanks for help from begining



Should i be worried that new one works at 1.35 Voltage and old one 1.5V?

The old mem stick is Samsung and new is from Ramaxel."

Any mem test i can start from windows all my usb pendrives are in use...and please look at screenshot im worried about voltage...

 

[Alex1986]

Bump 20 hours passed...no one will comment on info from screenshots?

 

[msgerbs]

Looks to me like it's working. There's no problem with varying voltages, different RAM chips use different voltages.

 

[Alex1986]

Looks to me like it's working. There's no problem with varying voltages, different RAM chips use different voltages.

Thanks so far no problems so it's stable and working fine just to let others know.