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17233
July 4th, 2016 15:00
Dell Inspiron 5521 | RAM Upgrade | Memory Module
I have a Dell Inspiron 5521 Laptop having 4 GB RAM. I am planning to add additional 8GB RAM.
So, the Total RAM would be 4+8= 12 GB.
I found the following information in Dell Specifications User Guide:
Memory
Connectors:
Inspiron 5521 Two internally-accessible DDR3 SODIMM connectors
Inspiron 5537 Two internally-accessible DDR3L SODIMM connectors
Capacity Up to 16 GB
Type:
Inspiron 5521 Dual channel DDR3
Inspiron 5537 Dual channel DDR3L
Speed Up to 1600 MHz
Configurations supported 2 GB, 4 GB, 6 GB, 8 GB, and 16 GB
I found the following Memory Module information by running Command on my Laptop:
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: SODIMM
Set: None
Locator: JDIMM2
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous
Speed: 1600 MHz
Question 1: Is it possible to add 4+8= 12GB configuration in this Laptop?
Question 2: Should i use DDR3 instead of DDR3L RAM in this Laptop?
Question 3: Which RAM is best supported with this Laptop, Kingston or CORSAIR Vengeance?
Note: I am using Ubuntu on this Machine.
ejn63
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87.5K Posts
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July 4th, 2016 16:00
1. Yes, albeit at a performance penalty. It's designed for a pair of matched modules.
2. Either will work by itself. Don't mix DDR3 and DDR3L though -- if you have DDR3, use that; if L, use that if you're adding a module.
3. Crucial is hard to beat particularly given its compatibility guarantee when purchased through its memory configurator. Anything else- ask the vendor about compatibility guarantees (or be sure you understand the possible restocking charge if a return is required).
ejn63
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87.5K Posts
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July 5th, 2016 12:00
The memory will run at half-bandwidth if mismatched modules are installed. How much of a difference that makes depends on how memory intensive your applications are -- for anything that can reasonably run on a low-end system like this, 8 G in dual channel mode is preferable to 12 in single channel.
alighalib
2 Posts
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July 5th, 2016 11:00
Thank you for your answers.
Q1: Can you kindly elaborate the first answer regarding the performance penalty?
Such as, how much performance is suffered?
Q2: Performance achieved by 4+8=12 GB will be better than 4+4= 8 GB. Right?
Any other information or suggestions are welcome.