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‎01-31-2019 11:14 AM - edited ‎01-31-2019 11:18 AM

HP Recommended
Product: HP 15-bs164tu LAPTOP

Hi,

I use HP Laptop 15-bs164tu. :Laptop:

I want to expand my RAM. ( 4GB + 8GB = 12 GB )

I currently have " 4GB DDR4-2666 / PC4-21300 DDR4 SDRAM SO-DIMM " in one slot on "HP 832A Motherboard." I saw a cheap option "Crucial 8GB DDR4-2400 SODIMM CT8G4SFS824A" .

  • Will it be compatible with my Laptop ?
  • Also it is 2400Mhz but my current RAM is 2666Mhz, so will this upgrade slow down my existing memory ?
  • if so, will be significantly slow ?

Ram Hardware Details 01Ram Hardware Details 01

RAM more details

Crucial 8GB RAM, I intend to purchaseCrucial 8GB RAM, I intend to purchase

Please Help ? :Crying:

-Maddy
1 person had the same question
4 REPLIES 4

‎01-31-2019 12:15 PM - edited ‎01-31-2019 12:20 PM

HP Recommended

Acording to this manual HP 15 Laptop PC (Intel) HP 15g Laptop PC HP 15q Laptop PC - Maintenance and Service Guide your notebook only calls for PC4-2400 for 8th Gen Intel Core CPU. PC4-2666 is overspec. It would only run at 1200MHz bus speed in your machine not 1333MHz spec.

 

So your Crucial RAM will work with it in single-channel mode at the same 1200MHz speed. To achieve dual-channel mode, you need 2 similar if not identical RAMs in both slots.

 

Follow the procedure as in Page 50 of the above manual for opening your notebook.

** I don't work for HP ** Click Blue Thumbs Up icon below if you like my answer
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‎02-01-2019 12:20 AM

HP Recommended

But my Hardware analysis tool, clearly states that 4GB Memory which came built into my laptop runs at 2666Mhz. Please refer scrrenshot in the question.

 

My question is that I want to use both RAM 4GB & 8GB together. SO if I use 2400 in first slot & 2666 in next slot, and use it together will I get a smooth performance of 12GB RAM.

-Maddy
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‎02-01-2019 03:36 AM - edited ‎02-01-2019 06:32 AM

HP Recommended

Looks to me the screenshot is showing the memory profile: type and speed and so on. Download cpu info tools like CPU-Z to see the actual running speed. Check the Memory/SPD tabs.

 

Unless the user guide is wrong, If the notebook is designed to run at bus speed of 1200MHz , the memory modules would be clocked at 1200MHz. So your 8GB and 4GB should both run at 1200MHz in single channel mode.

 

Now if the notebook is designed to run at 1333MHz, then the DDR4-2400 will not work.

** I don't work for HP ** Click Blue Thumbs Up icon below if you like my answer
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‎02-01-2019 07:56 AM

HP Recommended

CPU-Z 01 SPD tabCPU-Z 01 SPD tabCPU-Z 02 Memory TabCPU-Z 02 Memory Tab

-Maddy
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