Acer Aspire E5-575G RAM Compatibility Issue

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cricdasher

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Jun 16, 2016
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Well, this is the first time I'm posting in this forum and I need your guys' expertise at the moment.

I will receive an Acer Aspire E5-575G-57PK laptop in the next week and the laptop is expected to contain a 4GB RAM.

I have a plan to upgrade the RAM and I've got few questions. First it should be mentioned that I will remove this existing 4 GB RAM and install an 8 GB Single stick instead of a dual channel kit. The reason is that I intend to expand the RAM further in the near future by adding another 8 GB stick to make it dual channel functionality capable. Now the questions is this.

The laptop contains two DDR4 RAM slots, so I basically thought that it would support the 2400 MHz. It's got an Intel® Core™ i5-6200U Processor and according to the Intel specification page, the processor supports the following memory types.

DDR4-2133, LPDDR3-1866, DDR3L-1600

Source: http://ark.intel.com/products/88193/Intel-Core-i5-6200U-Processor-3M-Cache-up-to-2_80-GHz

I checked with my friend's E5-575G in command prompt by typing "wmic memorychip get speed" and the result was "2133". Also the originally installed memory is a 2133 MHz RAM.

Does it mean that I cannot install 2400 MHz RAM to Acer E5-575G ?

(However, The Crucial Memory Compatibility Checker says that Acer Aspire E5-575G supports 2400 MHz RAMs)

Source: http://www.crucial.com/usa/en/compatible-upgrade-for/Acer/aspire-e5-575g
---------------------------------------------------------------------------------------------------

And as you advice, should I go for a RAM that has a low CAS Latency?

At the moment, my plan is to buy a HyperX RAM.

Thanks!
 
Solution
Lutfij
1| When dealing with rams and ram upgrades always buy in a pair. Rams/ram upgrades are like buying a pair of shoes, even if you loose one out of a pair the shoe retailer will only sell you a pair thus you are bound to buy a pair regardless of which foot's shoe you loose and where you lost it. Buy a kit that your wallet will support and the maximum your laptop will support out of the box sans any modifications. You'll be good with a 2x8Gb kit as the maximum on your unit shows as 32GB maximum.
2| DDr3 apparenlty had to be overclocked to go to 2133MHz speeds while DDR4 starts at that frequency. Since the IMC on your i5-6200U is rated to run at 2133MHz anything higher in frequency will be downclocked to 2133MHz at...
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Lutfij

Lutfij

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1| When dealing with rams and ram upgrades always buy in a pair. Rams/ram upgrades are like buying a pair of shoes, even if you loose one out of a pair the shoe retailer will only sell you a pair thus you are bound to buy a pair regardless of which foot's shoe you loose and where you lost it. Buy a kit that your wallet will support and the maximum your laptop will support out of the box sans any modifications. You'll be good with a 2x8Gb kit as the maximum on your unit shows as 32GB maximum.
2| DDr3 apparenlty had to be overclocked to go to 2133MHz speeds while DDR4 starts at that frequency. Since the IMC on your i5-6200U is rated to run at 2133MHz anything higher in frequency will be downclocked to 2133MHz at laxed timings. So you canisntall any DDR4 kit above 2133Mhz ratings, only that it'll be dialed down to 2133Mhz.
3| Pretty much any ram that you will pick up at 2133Mhz have the same latency's. Pick one kit, install it and forget about it.

Mind you, if you decide to go with a single 8Gb stick and add more later on, you're almost bound to come back here asking why your system is wonky. Best course of action, buy a kit ;)
 
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starvinmarvin

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Jun 17, 2002
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cricdasher said:
Well, this is the first time I'm posting in this forum and I need your guys' expertise at the moment.

I will receive an Acer Aspire E5-575G-57PK laptop in the next week and the laptop is expected to contain a 4GB RAM.

I have a plan to upgrade the RAM and I've got few questions. First it should be mentioned that I will remove this existing 4 GB RAM and install an 8 GB Single stick instead of a dual channel kit. The reason is that I intend to expand the RAM further in the near future by adding another 8 GB stick to make it dual channel functionality capable. Now the questions is this.

The laptop contains two DDR4 RAM slots, so I basically thought that it would support the 2400 MHz. It's got an Intel® Core™ i5-6200U Processor and according to the Intel specification page, the processor supports the following memory types.

DDR4-2133, LPDDR3-1866, DDR3L-1600

Source: http://ark.intel.com/products/88193/Intel-Core-i5-6200U-Processor-3M-Cache-up-to-2_80-GHz

I checked with my friend's E5-575G in command prompt by typing "wmic memorychip get speed" and the result was "2133". Also the originally installed memory is a 2133 MHz RAM.

Does it mean that I cannot install 2400 MHz RAM to Acer E5-575G ?

(However, The Crucial Memory Compatibility Checker says that Acer Aspire E5-575G supports 2400 MHz RAMs)

Source: http://www.crucial.com/usa/en/compatible-upgrade-for/Acer/aspire-e5-575g
---------------------------------------------------------------------------------------------------

And as you advice, should I go for a RAM that has a low CAS Latency?

At the moment, my plan is to buy a HyperX RAM.

Thanks!
Click to expand...
Yes, you can install 2400MHz RAM. It will simply run at 2166MHz (or 2100Mhz) depending on how your specific model was configured by Acer.

There won't be any noticeable performance loss at the lower speed, anyway.

CAS 17 is the standard latency. Again, you won't notice any difference in performance between CAS 17 and a lower figure.

Regarding the total amount of RAM, 8GB is usually plenty for home use. You only need more if you're doing intensive video editing, batch photo editing, running 3 or more virtual machines (VMs) at once, or manipulating really large data bases. All "normal" computer tasks such as web browsing with, say, 16 tabs open, running Microsoft Office, email, and even 3D gaming will not benefit from more RAM.

Regarding using two sticks of RAM in Double-Data-Rate (DDR) mode, there is a modest performance (but still not significant) improvement on heavy work, but NOT for normal tasks, including 3D gaming.

If you buy a single 8GB RAM module with CAS 17 latency, you can simply add it as a second module to work with the 4GB already installed, thus giving you 12GB total.

Usually, an E5-575G equipped with 4GB RAM also has a regular spinning hard drive (HDD). If so, the single biggest performance boost for your new laptop will be to install an SSD. The improvement in overall system performance is VERY significant on almost everything you do on the computer.

I also use an Aspire E5-575G. It has a single 8GB RAM, and a 128GB SSD plus a 1TB HDD. Without the SSD the system is feels slow; with the SSD it feels quick and snappy.
 
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