Slim S01-pF2007na hangs with M2 NVMe in x16 slot

[Geoffwin10]

Recently purchased Slim PC S01-pF2007na with Windows 11 home.  Attempted to add Sabrent M2 NVMe in PCIe x16 slot but machine hangs after half a ring on HP startup screen.  SSD has been initialised and formatted ok and functions fine on old W10 desktop in x16 slot.  Boots ok on slim desktop when x16 card inserted and Disabled. Tried changing disk from RAID to AHCI but changes nothing and no longer boots.  Run out of ideas! All help would be very much appreciated...

    Geoff

[Geoffwin10]

Machine fully updated with all HP and windows updates.  Have had watchdog timeout error...

[Geoffwin10]

NB trying to add 2Tb NVMe M2 drive...

[Garp_senchau]

@Geoffwin10, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

Update BIOS: Check if there’s a BIOS update for your PC on the HP support site. This can fix compatibility with NVMe drives.

Check BIOS Settings:

Set Boot Mode to UEFI.

Disable Secure Boot.

Make sure PCIe Slot Configuration is set to Auto or PCIe 3.0/4.0.

Try the SSD in Another Slot: If possible, test the SSD in another PCIe slot (x4 or x8).

Enable AHCI in BIOS: If you switched from RAID to AHCI, make sure you do this correctly:

Boot into Safe Mode first.

Change BIOS to AHCI, then reboot into Windows

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!

Regards,

[Geoffwin10]

Hi Garp, thank you very much for your helpful reply. When I got the machine, I downloaded all of the HP updates and to my knowledge the BIOS is the latest version, though unclear how to check this. I attach various screen pictures but the real unknown is why there is a stop code generated which is ‘clock watchdog timeout’. The boot mode is UEFI. Disable secure boot mode seemed to make no difference; I could not find the slot configuration referencing ’Auto’ or ‘PCIe 3.0/4.0’;  there is only the x16 slot, the other is PCIe1x and the Sabrent card does not fit so there does not appear to be an alternative slot to check the card out. However, the card and SSD function correctly in the desktop PC being replaced, so the problem lies with the HP motherboard or other components used for the slim desktop format; I found other discussions using the same Sabrent card and M.2 SSD with no apparent difficulty- they seemed to plug it in and it worked. 
     I have to say that I am dealing with unfamiliar territory in Bios problems and the use of PCIe cards, 

[Geoffwin10]

 

 

 Above shows SSD but not sure how I got it to recognise it! Could not access it in W11 disk manager, though!

 

 sorry, these are a bit random but hopefully give some info on versions of various bits of f/w, s/w and h/w. 
     Look forward to hearing from you. Many thanks and best regards. 
     Geoff

 

[Garp_senchau]

Hey @Geoffwin10,

Thanks for the detailed description and BIOS photos — they were very helpful.

Here are some steps you can try:

Temporarily Remove Other SSD (WD SN740 NVMe)

Image shows that the internal system SSD is a WD SN740 NVMe (512GB). Having both this and the Sabrent PCIe M.2 SSD installed could cause resource or channel conflicts, especially on budget boards with shared PCIe lanes.

Temporarily remove the WD SN740 from the M.2 slot, then boot only with the Sabrent NVMe in the x16 PCIe slot.

If it boots without a BSOD or hang → conflict is confirmed.

Let me know how it goes. 

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!

Regards,

[Geoffwin10]

Many thanks, Garp. If I remove the other M.2 drive, I have no system drive and have no system to boot. The M.2 SSD is for data only. I can try it but exactly what would I be looking for? Not sure when I can have a look, away next week. 

[Geoffwin10]

Hi Garp, failed to boot with w11 system M.2 removed. Caused machine to fail to boot because no system disc available; inconclusive as regards conflicts between discs and PCIe x16 unless you have better info... Immediately went into diagnosing repair with blue screen error ‘Inaccessible boot device’; then went into preparing automatic repair; added Sabrent usb3 M.2 caddy with bootable W10 system but failed to find it and boot. Restoring M.2  system onto motherboard and restarting after disabling x16 hung, failed to boot. 
      Not sure where I am going with this and do not see a resolution of the issue; as I said previously, I am well out of my depth in trying to solve this, especially as it seems to revolve around so many complex hardware, firmware  and software components and I lack the knowledge and skills to get to the nub of the problem, let alone work out a circumvention. 
      The following images may be helpful…

best regards, Geoff

 

 

 

 

 

 

[Garp_senchau]

@Geoffwin10, Thanks for reaching out! I suggest you reach out to the nearest HP Authorised service center for personalized assistance. They can provide one-on-one help to fix the problem.

Note: There might be a nominal charge for the service they provide.

HP® Service Center Locator - United Kingdom | HP® Support

Regards,