Ram not being optimized

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Clement Wong

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Sep 20, 2013
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my computer is a Toshiba Portege R830,
the motherboard is an i5-2435M, with a pre installed 4GB of ram. it is quite new, but i installed a Kingston 8GB ram, making its total ram to be 12 GB,. Windows recognises this, but in control panel, it says 2.66gb usable. my computer is still quite laggy an i tried deselecting maximum memory in system boot config. What should I do?
 
Solution
R
Probably is like DiaSin said, some "lame" installation of Win7... Try a fresh installation of a 64bit SO and the problem should be gone. However 2 different RAMs may rise some different issues. Good luck :)
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Reikokuna

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Sep 20, 2013
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What operating system do you have? If it is the stock one it is 64bit and therefore not the problem.

However mixing different types of memory sticks is never a really good idea compatibility wise... If you just keep the 8GB stick does the laptop recognize and detect it properly?
 
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Reikokuna

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Sep 20, 2013
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That is the problem. 32bit systems don't support over 4GB of memory. Althought it detects them it won't them....
 
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Clement Wong

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Sep 20, 2013
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i thought that it would use a maximum of 4gb though.. is it a configuration problem?
 
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Reikokuna

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Sep 20, 2013
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I've seen cases where if uses 3.7GB, other that used 3.4GB... Probably some kind of compatibility problem... Did it always showed up like that even before putting the extra RAM?
 
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Clement Wong

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Sep 20, 2013
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Reikokuna

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Sep 20, 2013
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Probably is like DiaSin said, some "lame" installation of Win7... Try a fresh installation of a 64bit SO and the problem should be gone. However 2 different RAMs may rise some different issues. Good luck :)
 
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Reikokuna

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Sep 20, 2013
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If you don't feel comfortable or don't know how to you should probably send your laptop to a tech store and they do that for you. But take into consideration possible expenses with the SO license.
 
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