thanks
i tried 1.4/1.5/1.7 ， 1.7 failed
I believe fan control is a kernel issue. These u-boot images should be the same as the Open Embedded one.
Also, I’ve been testing at 1.5 GHz with no case. Just the board on a table. At 80 degrees F (27 degrees C) ambient (old Silicon Valley house with no A/C), the maximum temperature I’m seeing is 50C.
Cool. Could you give 1.6 GHz a try?
I’ve tried 1.6/1.7/1.8 GHz and none would boot. Currently running mine without issue at 1.5 GHz. Additionally, I’m curious about what the spl files provide/do as I’ve been able to run 1.2-1.5 GHz using the same spl file.
The clock PLL value is changed in both the u-boot.itb and u-boot-spl.bin files, so that’s why I provided both. But it’s possible that the PLL setting in the u-boot.itb file is done last, so it’s the one that sticks.
yea, i thought so… i guess ill check over in canonical if there is that issue reported yet… meanwhile i guess i could hook the case fan to some other power source
look forwards to trying those out!
I’ve now got mine running at 1.5. I ran the geekbench preview
https://browser.geekbench.com/v5/cpu/8604303
Some of these tests use things such as cryptographic instructions or SIMD that simply don’t exist yet. And who knows how well geekbench have ported things …
The things that I care about, such as clang and text compression are competitive against the Pi 3 – and the multi-core to single-core ratio is better.
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Hi,
i was running 1.5 GHz for a while, but ran into strange crashes and kernel panics. Mostly during compiling some version of gcc (which stresses the system for hours).
Now i run 1.4 GHz, this seems to be stable so far, still building though 