NVME drive on Acer a515-56 slow? and not in other devices.

kmp6258
kmp6258 Member Posts: 1 New User
edited October 2023 in Aspire Laptops

I get speeds of up to 3500 Mbs on other PC's I own, but on this laptop with

the standard 128g NVMe Boot Drive, I'm only getting about 1500 Mbs. Is that

a limitation of the motherboard, or is the drive just slow and could be speeded with

NVMe upgrade?

[Edited the thread to add issue detail]

Answers

  • AnhEZ28
    AnhEZ28 ACE, Member Posts: 4,248 Pathfinder

    @kmp6258

    It is because of the slow stock NVMe SSD. If you want a faster-speed SSD, you can upgrade to a better one.

    Please remember to include @AnhEZ28 when you want to reply back to my comment so that I can check your response.
    Thank you and have a nice day!
  • StevenGen
    StevenGen ACE Posts: 12,027 Trailblazer

    Your Aspire A515-56 laptop has provisions for 1x PCIe 3x4 M.2 SSD drive which is its boot drive and also has provisions for a 1x 2.5" SATA III HDD or SSD. PCIe 3.0 x4 slot has a maximum theoretical bandwidth of 32 Gbps (gigabits per second) for both read and write operations. However, the actual read/write speeds of a PCIe 3.0 x4 slot depend on the device connected to it and the quality of the motherboard’s PCIe implementation, so realistically the PCIe3x4 M.2 SSD speeds is up to 4000MB/s read/write. and The M.2 SSD drive like the 128GB M.2 SSD boot drive that you have in your laptop is a SAMSUNG SSD NAND 128GB M.2 2280 PM991 MZVLQ128HBHQ-00000 that is fitted to your laptop, has a quoted performance from Samsung of 1000MB/s sequential write and 2000MB/s sequential read so a benchmark readout of 1500MB/s is accurate (depends on which software you used for the speed benchmark) and there is nothing wrong with your laptops M.2 slots or SSD drive.Do a CrystalDiskMark benchmark test as that is a more accurate score that is more commonly used, but you have to realize that Acer only fitted a mid-range M.2 SSD drive to the Aspire A515-56 laptop oem.

    The fastest and top performing M.2 SSD PCIe3x4 drives are either the Samsung 970 EVO Plus or Pro NVMe or the WD SN750 Black NVMe M.2 SSD drives (which are obsolete and very hard to buy) so if you can’t buy these top performing PCPI3x4 drives, then buy a PCIe4x4 as the M.2 SSD drives are backward compatible and your laptop fitted with an PCIe4x4 will work at its peak read/write speed with no problems.

    Below is a guide from the A515-56 laptop SG which are the PCIe 3x4 M.2 SSD drives that Acer fits to this laptop oem: