Hello :)

I bought this drive today and installed Windows 7 Ultimate 64bit.
Then I installed Crystaldiskinfo to check SMART info about it and... it does not recognize this drive. Adata SSD Toolbox, too. And others, HWinfo, AIDA.... too.

NVMe SMART capability not supported in Windows7? Drive works and boots ok, I checked TRIM, too. Special drivers needed? I tried Windows 10 PE - it shows SMART data! Will it work in Windows 8.1?

Thanks for any info!

MB: MSI B250 PC MATE, CPU I5 7500

Kind regards!
yac

I integrated this hotfix driver to Windows ISO before installation so setup could recognize NVMe device and install on it. So it's there but SMART data not showing... - not full support.

Anybody with Windows 7 and NVMe? Can you read your drive SMART status?

Kind regards,
yac

Now you are installed, update driver to better Intel drivers

Intel NVMe drivers are only for Intel controller based NVMe drives. I tried and it doesn't install. ADATA has Silicon Motion controller.

Sorry, I assumed Intel storage drivers in general would install and be better than MS drivers, but I don't have NVME so was wrong I see

Thanks Fernando, I'm a little behind on SSD tech! So, in Win8-10, does that offer better performance in general vs the MS driver?

Hello again.

I did some testing today with OFA NVMe driver 1.5 and MS native NVMe driver on Windows 7 Ultimate 64bit. Testmode on, driver signing disabled.

CPU: i5-7500
MB: MSI B250 PC MATE
System disk: Samsung 850 EVO SATA SSD
Tested disk: ADATA XPG SX8200 NVMe SSD

Here are the restults:

MS native NVMe Windows 7 64bit driver:



OFA NVMe 1.5 Windows 64 bit driver



OFA NVMe 1.5 Windows 64bit driver compiled by Schtrom (from reboot.pro forum)




Schtrom's driver performed the best.


Other observations:

1. I was able to read ADATA's SMART status on OFA NVMe drivers only.
2. TRIM on ADATA's SSD is working on MS NVMe native driver only.
3. When using OFA NVMe drivers, ADATA device is configured as removable (usb quick remove icon on bottom bar) - maybe that's why TRIM not working?


@Fernando I found mistake in driver that you send me (file ofvnme.inf, Line 88 - nvme_inst should be ofnvme_inst) after correcting this, driver installs but is not signed. Maybe unsigned drivers cause TRIM to not work?

Anybody knows other reason why TRIM on OFA driver is not working?

Kind regards,
yac

No matter I use your driver, Schtrom's driver or OFA vanilla driver - TRIM does not work on NVMe drive.

Even your driver is signed, I must leave testmode-on and driver-signing-off options enabled - otherwise Windows has problem with boot and recovery is starting.

There is something strange with this OFA 1.5 Driver for Windows 7 64bit. I think it's support is not complete.

What about NVMe drive configured as removable? - I think it shouldn't be. Maybe here is a glitch. I tried some registry hacks but no luck.

Kind regards,
yac

Maybe you can disable hot-swap for this drive in your BIOS?