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evsasha
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Pavillion 15cs1003ur m.2 slot speed

Pavillion 15cs1003ur
Microsoft Windows 10 (64-bit)

Hi, I have Pavilion 15cs1003ur. And I replaced the complect SSD by the Samsung 970 EVO plus 1TB.

 

I updated all the motherboard and chipset drivers (by HP Support Assistent utility), updated Windows, install special NVMe driver for Samsung SSD.

 

But at performance test i got only half speed 1700 MB/sec for read and write versus 3200 expected.

I tested the write speed with utilities:

  • Samsung Magician
  • CrystalDiskMark

 

Samsung Magician shows that the drive is connected at PCI-E 3.0 x4 mode.

 

Ok, so i have a few quwstions:

  • What speed does m.2 slot work in this line of laptops?
  • Do other owners of this laptops have similar problems?
  • What I can check additionally to identify the problem?
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Pavillion 15cs1003ur m.2 slot speed

The Samsung Magician software would not misreport. Its a gen 3 x4 interface. I have seen the same thing on my Zbook 15 G3 where I can only get about 2100 mbps out of an Evo 970 even though it is a x4 interface. My personal Lenovo Carbon x1 Gen 6 with an Evo 970 will do 3200 mbps +. I am just not sure what's happening other than perhaps throttling by design of the motherboard. BTW, I am fully happy with my Zbook 15 G3. 2100 Mbps is still insanely fast. 

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evsasha
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Pavillion 15cs1003ur m.2 slot speed

I want to note that:

 

  • This is not thermal throttling, the temperature of the test disk does not exceed 70 degrees
  • Maximum speed around testing around 1700-1800 MB / s. And it seems that only two PCI-e 3.0 lines can be used: 8 Gbit / s x 2 = 2 GB / s.

I would like to receive a comment from the manufacturer.

 
 
 
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