The Turing Pi V1 board supports the following models with eMMC (all configurations) and without eMMC:
Raspberry Pi Compute Module 1
Raspberry Pi Compute Module 3
Raspberry Pi Compute Module 3+
From where Turing Pi boots OS?
You can boot the OS either from eMMC, SD card, or netboot.
Does each node get its own IP address?
Yes.
How the compute modules communicate with each other?
The nodes interconnected with the onboard 1 Gbps switch. However, each node is limited to 100 Mbps USB speed. Also, there is an I2C bus to exchange some technical information between nodes, including Real-Time Clock (RTC).
Do all the slots need to be filled in?
Turing Pi works with any amount of nodes. You can start with a couple of nodes and scale when needed.
Can I flash compute modules through the board?
Yes, you can flash a compute module using a top/master node.
How do the NIC, Ethernet, USB, HDMI, and audio ports work?
There are 8 USB on the board. Each pair of USB connected to a particular node. 2x USB routed to the top/master node, 2x to the second node, 2x to the fourth node, 2x to the 6th node. HDMI and audio connected with a top/master node.
NIC - There is an 8 port switch on the board. Each port goes to each node plus one uplink.
Can Turing Pi function from either an ATX power supply or 12V?