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January 13th, 2026 19:00

Dell Inspiron 17" 3780 - Memory Increase

Hi all,

Precursor - I am not especially technical and have not ever under taken personal enhancements to IT kit before.

My laptop memory has been full for a while, and I am now at the point where I'd like to increase the SSD and RAM to prolong it's life.

I've googled and found videos that show it should be pretty straightforward, but I wanted to post on here to make sure I'm not missing anything before I go ahead. 

Will the fan I have be sufficient for additional parts?

Thanks in advance for your guidance. 

10 Elder

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30.8K Posts

January 13th, 2026 19:36

The system will take up to one M.2 2280 NVMe SSD and one 2.5" SATA drive -- and 32G RAM.

Unfortunately a 32 G memory kit at this point is about $200 -- it's a bad time to be buying memory upgrades.

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January 13th, 2026 20:24

Thanks - appreciate the help.

I have two slots for RAM - currently one 8GB - does the other spot have to match up, or can I put a 16GB in there?

10 Elder

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30.8K Posts

January 13th, 2026 20:52

For best performance, memory should be in equal capacity pairs.  If you install a 16, only 16 G total will run in full performance mode (dual channel).  The other 8 will be in half-bandwidth mode.

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