Swift3 314-41 nvme speed

Hello to you all,

I have purchased 3 Acer Swift3 and I am quite happy with them because they have a good performance at an affordable price. One of the 3 is a Acer Swift 314-41 with 8 GB Ram and a 512 GB M.2 Nvme disk (Western Digital WDC PC SN520 SDAPNUW-512G-1014) in original. The disk has a Sandisk controller with a maximum bandwidth PCIe 3.0 2x. I have maximized the Ram to 20 GB and also bought a traditional 2 TB 2.5-inch hdd to have more space for large files.

Now my problem: the nvme disk shows a random behaviour sometimes hooking up 1 lane (x1) and sometimes 2 lanes (x2) (see the photos). I really do not understand why. I tried to resolve the problem installing the newest AMD chipset. Also, the Bios is the newest available. The strange and annoying thing is that I have to boot up 2 times: the first time it goes with x1 speed, the second time with x2 speed!

Someone has a suggestion? Many thanks in advance.

Wolfgang

Accepted answers

wolfganghaberl

Everthing ok. For the 2 acer 314-52 withe the Sabrent Rocket 512 GB i reach about 1800 Mbyte/s (because the intel architecture cuts the speed from 4x to 2x), For the 314-41 i bought a new Sabrent Rocket 1TB and now it goes up to nearly 3500 Mbyte/s which is fantastic. I am quite happy about the improvements. So have a good time!

All comments

batmalin

What shows the HWINFO on the first boot?

wolfganghaberl

It shows 1x speed

batmalin

Hum, maybe the firmware of the ssd is bad, the only thing I can think of to exclude MB failure is to test with other ssd...

wolfganghaberl

Thanks for your quick answer. ANyway I don't think it's a problem of firmware. I made some checks. Drive seems to be ok. What about using a firmware of Dell? I think it's to risky. I don't want to brick my disk and the operating system.

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batmalin

This should be dell specific so I wouldn`t use it. Well try with other drive to see if it behaves the same.

wolfganghaberl

Everthing ok. For the 2 acer 314-52 withe the Sabrent Rocket 512 GB i reach about 1800 Mbyte/s (because the intel architecture cuts the speed from 4x to 2x), For the 314-41 i bought a new Sabrent Rocket 1TB and now it goes up to nearly 3500 Mbyte/s which is fantastic. I am quite happy about the improvements. So have a good time!

batmalin

Great mate!

Commodore_1995#

What you can try is to uninstall and delete the driver from the sata ahci controller, as the ssds are based on the standard driver provided by windows:

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