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30 Posts

10-04-2015

FR

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T470 and ram compatibility

2017-12-15, 13:51 PM

Hi,

I have a T470 with 8Gb ram. In order to upgrade to 16Gb (8Gb×2), I intented to buy this 8Gb ram :http://www.samsung.com/semiconductor/products/dram/pc-dram/ddr4-sodimm/M471A1G43DB0?ia=2429

 

Will it be fully compatible?

 

Thanks a lot for your help :)

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11777 Posts

11-30-2015

PH

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Re: T470 and ram compatibility

2017-12-15, 15:42 PM

Hi nibalo

 

Greetings.

 

In most ram upgrades, it would be best to match your current installed RAM.

 

General specs is 32GB max / 2400MHz DDR4, dual-channel capable, two DDR4 SO-DIMM sockets

Ideally, RC: DDR4-2400 (1200MHz @ CL=17, tRCD=17, tRP=17)

 

M471A1G43DB0 do have the same specifications except the speed , PB: DDR4-2133 (1066MHz @ CL=15, tRCD=15, tRP=15) as it is known to work but with downclock to the slower one or could be unstable as reported here on this and this discussion.

 

As per parts lookup tool this M471A1K43CB1-CRC would be better choice aside from other listed.

 

Hope this helps you answer your query.

 

Regards

 



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30 Posts

10-04-2015

FR

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Re: T470 and ram compatibility

2017-12-15, 16:00 PM

Hi and thanks for your quick answer!

Could you please tell me how to check the informations about the already installed ram?

Is it possible to cjeck it from the BIOS itself?

 

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11777 Posts

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Re: T470 and ram compatibility

2017-12-15, 16:38 PM

Hi nibalo

 

First, you can use the serial number and check the part number and manufacturer number from the parts lookup page here (or you can send me the serial number privately if needed). 

 

You can use the manufacturer info of the RAM (example M471A1K43CB1-CRC) which is also on the sticker of the ram to get other specific details that software tools like CPU z may miss out.

 

BIOS would only have small details to reference. 

 

Regards



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3 Posts

04-01-2020

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Re:T470 and ram compatibility

2020-04-01, 11:14 AM

Hello I have a T470 with 8gb of RAM (from task manager it says 8gb, 1 sodimm 2133mhz).

I'd like to upgrade to 16gb.

From my distributor I can only buy Lenovo 4X70M60574 that is 8GB DDR4 2400MHz SoDIMM, therefore it is 2400 not 2133.

 

Can I buy the 2400mhz and install it together with the 2133mhz or I will have compatibility issue and system instability?

 

Tks.

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3 Posts

04-01-2020

IT

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Re:T470 and ram compatibility

2020-04-02, 9:09 AM

can somebody help me?

Or, can Io have a telephone number to ask assistance?

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29 Posts

08-10-2016

CA

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Re:T470 and ram compatibility

2020-04-02, 17:33 PM

@robrom78 I can't say from personal experience with your particulars, but generally faster RAM is okay, and your system will only utilize it at slowest common speed.  In other words, if you have one stick of 2133 and one stick of 2400, both will run at 2133.  If you have two sticks of 2400 but your motherboard only supports 2133, both would run at 2133 as well.  So it's the slowest speed between what the motherboard supports and what each SODIMM can run at which determines the overall speed.  You should be okay.

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