PCIe devices in the Delta's M.2 M-key slot Don't work

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User avatar
intelis
Posts: 5
Joined: Sun May 05, 2019 10:32 am

Sun May 05, 2019 10:41 am

(Please forgive me for my poor English composition.)

I tested three PCIe adapters in Delta.
But nothing works.
Is the PCIe adapter don't working in Delta's M.2 M-key Slot?

I want someone's advice.
Thank you for reading.
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Last edited by intelis on Mon May 13, 2019 10:22 am, edited 1 time in total.

User avatar
ccs_hello
Posts: 440
Joined: Sat Oct 13, 2018 9:16 pm

Sun May 05, 2019 2:56 pm

On LP Delta's DC 12V power, do you use the same power supply as the big PC, metal can, power supply or are they separate unit?

If they are separate, individual units, the Ground lead from each will have to be tied together exterior to the LP board.

User avatar
intelis
Posts: 5
Joined: Sun May 05, 2019 10:32 am

Sun May 05, 2019 4:56 pm

Thanks to your advice.
I tried to same power source, but don't work. ;'-(
( ATX power supply's 12v direct to Delta DC port, and to LP converter power port. )
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User avatar
ccs_hello
Posts: 440
Joined: Sat Oct 13, 2018 9:16 pm

Mon May 06, 2019 12:16 am

The third pic in post #1 is incorrect.
M.2 to SATA won't work for LP Delta.
Delta's key-M slot does not have SATA signal.
<-- you'll have to use PCIe to SATA controller card

===========
Regarding your general picture: key-M extension card won't work, I'll have to think about it.

User avatar
LattePanda
Site Admin
Posts: 2467
Joined: Wed Jan 20, 2016 9:09 am

Mon May 06, 2019 5:55 am

Delta's key-M slot does not have SATA signal. Only PCIe 2X
About the graphic card,:is the card powered? If the fan on graphic card does not start to run after boot the delta. Please check if the power supply is work
Enjoy Tinkering with LattePanda ! :lol:

User avatar
calpin
Site Admin
Posts: 22
Joined: Fri Apr 15, 2016 9:21 am

Mon May 06, 2019 6:01 am

We tested with such eGPU device but it need short two pins to start the power for the graphic card, We can not find much information about this, https://www.youtube.com/watch?v=0eBlaPL4Kbg

User avatar
intelis
Posts: 5
Joined: Sun May 05, 2019 10:32 am

Mon May 06, 2019 8:12 am

I know that short the green pin and the black pin to turn on the ATX power.

The graphics card and the sata card do not work when the delta boots to Windows 10. The graphics card is powered up and the fan is running. The sata card also comes with a green LED. But neither is recognized.

Can I guess that the delta's m.2 m-key is broken?

User avatar
ccs_hello
Posts: 440
Joined: Sat Oct 13, 2018 9:16 pm

Mon May 20, 2019 3:53 am

I've just tested the M.2 key-M to PCIe adapter card and with either the GPU card or PCIe-SATA controller.
None of them got detected and from HWINFO64, the PCIe bus (Bus A #0) does not show anything there.

The next step is to try BIOS setting (has to be very careful, can easily brick the Delta board.) Probably will take a while to figure it out (if there is a solution....)

User avatar
intelis
Posts: 5
Joined: Sun May 05, 2019 10:32 am

Mon May 20, 2019 10:45 am

I've just tested the M.2 key-M to PCIe adapter card and with either the GPU card or PCIe-SATA controller.
None of them got detected and from HWINFO64, the PCIe bus (Bus A #0) does not show anything there.

The next step is to try BIOS setting (has to be very careful, can easily brick the Delta board.) Probably will take a while to figure it out (if there is a solution....)

==========================================================================

It's the first helpful answer.
Thank you.
I'll wait for your advice on setting up Bios.

User avatar
ccs_hello
Posts: 440
Joined: Sat Oct 13, 2018 9:16 pm

Mon May 20, 2019 9:56 pm

Update....

Now I went to simplest configuration:
1. use a dual-Gigibit Ethernet M.2 key-M adapter (which can use either the PCIe x2 bus or just the single PICe x1 bus
2. when used in Delta's key-M slot, it is recognized right away (PCIe 0:19:0 to 0:19:1)
3. when used in Delta's key-E slot thru a "key-E to key-M" adapter (only has 1-lane PCIe), then put that M.2 dual-Ethernet card in the adapted key-M slot, it is also recognized (PCIe 0:19:2)

So,.... there is hope.
It is just a matter of checking signals, voltage, and pinout. More work ahead.

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