Help mixing Rams with different voltage?

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Gucar

Prominent
Jul 7, 2017
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I need help installing a new ram into my laptop.
I wanted to have more memory, so I took a Ram from an older computer that has everything in common with the ram that my notebook is currently using except for the voltages, but when I installed it in my pc, it didn't recognize the ram, althought the program CPU-Z does recognize that is install. The only diference is the voltages and the brand (the new one is kingston), any help will be greatly appreciated. I will leave screenshots.

PD: I tried changing the Rams of place and both of them worked in other notebooks.







 
Solution
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Laptops and computers in general only use single voltage for ALL of their ram, this can cause problems if sticks are rated for different voltage.

If old computer had 1.5V RAM and your current one had 1.35V, computer tries to run said ram at 1.35V, while the difference is small, it is usually enough for the ram to say "I wont work, I'm out of here" and computer just ignores it after the bios boot.

This cannot really be avoided unless you change the voltage on RAM (This is usually NOT available on laptops and even if it was, it would cause the 1.35V RAM to run WAY more hot and possibly burn/break)

Other way around, old computer having 1.35V and new one having 1.5V, the old stick would be overvoltaged and it either works (and runs into...
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little_me

Splendid
May 9, 2015
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Laptops and computers in general only use single voltage for ALL of their ram, this can cause problems if sticks are rated for different voltage.

If old computer had 1.5V RAM and your current one had 1.35V, computer tries to run said ram at 1.35V, while the difference is small, it is usually enough for the ram to say "I wont work, I'm out of here" and computer just ignores it after the bios boot.

This cannot really be avoided unless you change the voltage on RAM (This is usually NOT available on laptops and even if it was, it would cause the 1.35V RAM to run WAY more hot and possibly burn/break)

Other way around, old computer having 1.35V and new one having 1.5V, the old stick would be overvoltaged and it either works (and runs into heat problems quite fast) or.. doesn't. It might or might not tell BIOS to ignore it due to different voltage.

Long story short.. mixing different voltage RAM's is not possible and even if it was, it is not advisable.
 
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Solution
davissima

davissima

Reputable
Dec 4, 2016
40
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4,560
dont use different voltage rams, different voltage can mean different speed or capability also form of working so i would say
1. it wont respond
2.it will f*** up your pc
3.nothing will happen
4.wont work correctly
 
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