CPU can take some quite industrial range (125C? I know I've seen a number somewhere...), and will throttle starting at 85C. In practice, it will get to 75C in long compiling sessions. Thus, it doesn't really need a heatsink.
However, you might want to install a m.2 nvme, in which case you'll definitely want that heatsink as you'll have more heat. I went with XU4Q's (from ODROID), which is a passive solution, a tall heatsink. It fits in place w/o issue and doesn't disturb m.2. CPU tops out at around 57C now.
I notice that, in the pictures, the reviewer did not install the 4x spacers that shipped with the board. This board will not sit evenly on a desk, as the m.2 slot protrudes; it might interfer with cooling. That'd explain 90C where I got 75C.
An XMODEM 'CCCCC' should show up in the serial port at 115200 8N1.
If that's the case, bootloader in SPI got corrupted. There's a rescue tool for this UART boot. It can fix that.
Because I ordered it in October, got only a paypal receipt with a smartfire.cn email and nothing else. Sent them an email early this month to have a status update, and no reply.
I just wonder if I got "scammed", with no way whatsoever to check my order status. I'll give it a few more days and contact Paypal for a refund. Can't say I'm pleased with the customer service.
People who participated in the kickstarter have only recently started to receive their boards.
What problems does the deb.d.o URL have?
https://deb.debian.org/debian-ports/pool/main/d/debian-ports...
I don't know where the temp sensor is on the board but it read 54 (about 24 above ambient), now it sits at about 32 (ambient +12). I could only get the minimal image69 running so not much practical use at the minute.
[0] https://www.reddit.com/r/RISCV/comments/104dayd/i_designed_a...
The temperature sensor resides within the JH7110 SoC.
And the kernel has device mapper disabled so I couldn't use kpartx to mount a drive image with partitions. Also means dm-crypt or LVM2 won't either.
But these kinda kinks can be worked out I think so I hope we get a good out of the box experience in a few months.
The outcomes: - it shows several times better results, but we suspect that the previous result was misconfigured; - the performance is still way behind Raspberry Pi, Rock Pi and other AArch64 machines.
We are building for RISC-V with cross-compilation, details here: https://github.com/ClickHouse/ClickHouse/pull/31398
