JMB585 only recognizing single disk

[dweb]

Hi all,

I just bought a JMB585 Amazon port multiplier for my m.2 ssd slot in my mini PC.

However, when booting into Unraid only a single disk is being recognized, but 4 are attached to the HDD rack. 

 

Looking at the HDD rack there is only disk2 having a blue status LED.

 

I am currently not sure wheter my pc does not support the multiplier, wheter I need to do change some BIOS setting, or wheter it is something in Unraid.

 

Maybe someone with more experience can help me to troubleshoot.

 

 

 

 

unraid-diagnostics-20240215-1750.zip

[JorgeB]

5 minutes ago, dweb said:

port multiplier

We usually prefer the term controller, since SATA port multipliers are not good, and this controller doesn't use one.

 

All but one of the SATA ports has no link:
 

Feb 15 17:48:58 Unraid kernel: ata2: SATA link down (SStatus 0 SControl 300)
Feb 15 17:48:58 Unraid kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Feb 15 17:48:58 Unraid kernel: ata4: SATA link down (SStatus 0 SControl 300)
Feb 15 17:48:58 Unraid kernel: ata5: SATA link down (SStatus 0 SControl 300)
Feb 15 17:48:58 Unraid kernel: ata6: SATA link down (SStatus 0 SControl 300)

 

Swap the device that is working to a different SATA port, that will help identify if the problem are the ports on the controller or with the other devices.

[dweb]

Something strange I noticed is since I plugged in the m.2 card, the PC boot takes much longer to get out of the bootscreen (more than a minute). 

 

Swapped the ports but currently not even one drive is recognized anymore.

unraid-diagnostics-20240215-1822.zip

Edited February 15 by dweb

[JorgeB]

Long post may be a delay trying to detected the devices, are the disks connected directly to the controller or using an enclosure?

[dweb]

I use a ICY BOX enclosure, but even if i remove all sata cables from the pc, but keep the nvme converter inserted, the post takes ages.

[JorgeB]

Possibly the controller is not good, if you can try testing in a different PC with just an SSD, you can test all ports with the same device.

[ConnerVT]

What type of mini PC?  Is your M.2 slot x1 or x4 PCIe lanes?  I know a number of the the recent Celeron (N100 and such) boards come with x1 M.2 slots.

[dweb]

I think x4 PCIe. Its a V600 i7-1260P with BQM5 Mainboard similar to this one Mini PC.

 

I founding the following Information:

1 x M.2 2280 slot (support SATA 3.0/NVME SSD, PCIE x3 Gen3)

1 x M.2 2280 slot (support NVME SSD, PCIE x4 Gen4)

1 x 2.5” SATAIII HDD/SSD

 

I Used the slot without the SATA Label, but seems it is gen4 while the JMB585 is Gen3.

Edited February 16 by dweb

[JorgeB]

The controller is being correctly detected, the m.2 slot should not be the problem. 

[dweb]

Okay I think I found the issue. Problem are 3.5 HDD drives which reqire 12V but the MiniPC only provides 5V.

When powering the ICY Box Enclosure from a secondary PC, everything is booting up and working.

 

I am wondering what my possibilities are.

- Can I use a PicoPSU to power the whole PC+Enclosure? There is a small slot on the Mainboard (Screenshot attached, is this a power source?)

- Can I use a external 12V Power Brick to power just the enclosure? Are there any issues with this setup (i.e. Spindown)

 

Any guidance would be highly appreciated. 

 

 

Edited February 16 by dweb