Add to Dell Lattitude E7440 Memory

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jalauer

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Oct 31, 2013
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I have a Dell Lattitude E7440 laptop with a 4 GB Dell memory card and an additional, empty memory card slot. I want to upgrade from 4 GB to 8 GB. The Dell memory specs are: 4GB, 1600, 1RX8, 4G, DDR3L, Ss. I don't know the latency for this card.

Will I compromise performance by adding 3rd party memory in the empty slot as long as the new card has the same or better specs?

I'm looking at two Crucial cards with similar specs, but one has CL=11 and the other has 9-9-9-24 specs which I assume are latency specs. Will either work okay with my current memory?

Would it be better to remove the Dell memory and install two matching 4 GB cards?
 
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Blaise170

Blaise170

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Sep 12, 2013
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You should try not to mix and match if possible. Two Crucial sticks will work fine as long as the motherboard supports the RAM speeds. You can't go wrong if the speeds are the same though. Latency really doesn't matter all that much.

Just looked in your owner's manual and it supports 1600MHz up to 16GB.
 
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jalauer

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Oct 31, 2013
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10,510


A support tech at Crucial said that if the Dell and Crucial memories are not compatible, likely the laptop will not even boot. Given that the clock speeds and power specs do match and that the laptop does boot, might there be some differences that would compromise performance and I would have little way to determine that? Might I think all is optimal when it is not?
 
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