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Question Inspiron 3421 ram upgrade

Jun 16, 2019
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Hello guys.. I want to upgrade my Inspiron 3421 ram and I want to know if this ram are compatible:

PC3-12800S-11-10-F2 4GB 2Rx8 (that’s the one I have laying around that I want to add)

PC3L-12800S-11-11-F3 4GB 2Rx8 (that’s the stock one witch comes in my Inspiron)

It will work? Or do I need to buy another one identical?

Thanks
 
Last edited:

lynx1021

Reputable
Feb 17, 2016
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You can try it since you already have it, but run Memtest86 If it boots to check for errors. The PC3L-12800S is low voltage (1.35 volts) where the PC3-12800S is 1. 5 volts. It is best to use the same voltage but my Toshiba laptop came with a 2GB stick @1.5 volts and a 4GB stick at 1.35volts from the factory.
Create a bootable CD-ROM, Or a bootable USB
Memtest 86 http://www.memtest86.com/technical.htm

You have to extract it and burn it as an ISO " for the CD

Guide to using Memtest86+

https://www.wikihow.com/Test-PC-RAM-with-MemTest86
 

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