Open dylan-alfi opened 2 years ago
Hello @dylan-alfi please check with community here if anyone has successfully detected two TPUs with CT-MCL01 premio motherboard: https://github.com/google-coral/edgetpu/issues/256
Thanks!
Hi @hjonnala I checked on#256 . The CT-MCL01 is supported.
Hi everyone, I have a CT-MCL01 premio motherboard with 1x M.2 (E Key, PCIe x2). After installing the driver and libraries only one tpu shows up.
lspci -nn
System peripheral [0880]: Global unichip corp. Coral Edge Tpu [1ac1:089a]Any help is greatly appreciated.
@dylan-alfi Dual TPU card has two independent TPUs and each TPU requires it's own PCIe bus, ie not PCIe x2 lanes, but rather 2xPCIe x1
I went through CT-MCL01 manual and block-diagram on page 8 shows PCIe lanes 19 and 20 are going to m.2 E-key slot. Later in that document in BIOS section there's config for PCIe Root Port 19 and the next is 21. This gives me a clue that PCIe port for m.2 E-key slot is configured as PCIe x2, which is wrong and not to m.2 electromechanical specs.
To confirm, please try sudo lspci -vvv
. Then find Coral TPU among devices and the line which starts with LnkCap:
. If you see Width x2
, then contact mobo manufacturer to see if there's BIOS update or setting to configure PCIe 19 from PCIe x2 to 2xPCIe x1
Hi everyone, I have a CT-MCL01 premio motherboard with 1x M.2 (E Key, PCIe x2). After installing the driver and libraries only one tpu shows up.
lspci -nn
System peripheral [0880]: Global unichip corp. Coral Edge Tpu [1ac1:089a]Any help is greatly appreciated.