<cwt[m]>
now with an oversize heatsink (from my unused poweramp), the temp never over 55C
<davidlt[m]>
cwt: do you use thermal glue or something to attach these?
<cwt[m]>
davidlt[m]: yep, double side thermal tape
<davidlt[m]>
cwt: could to suggest a brand/SKU?
<davidlt[m]>
Never used it before, but I plan to. If you know about a good one then I don't need to do research.
<cwt[m]>
I don't know it good or bad, I just grab one from an online store in my country.
<cwt[m]>
look like a big enough passive heatsink is ok for this board.
<davidlt[m]>
Well that's a large thermal mass :)
<davidlt[m]>
cwt: what are your plans with VF2?
<davidlt[m]>
Conor started testing Zba and Zbb stuff on the board.
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<cwt[m]>
<davidlt[m]> "cwt: what are your plans with VF..." <- don't know yet, it's just my first risc-v board
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<cwt[m]>
<davidlt[m]> "Well that's a large thermal mass..." <- I just test turn off my AC for 25 minutes, the temp go up to 70C, but it doesn't crash yet. I'm turning on AC now.
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<davidlt[m]>
cwt: put a standard 120mm PC fan and that should be good enough.
<cwt[m]>
have you build things with lto on? I feel that lto is too slow on risc-v.
<davidlt[m]>
LTO is enabled in Fedora by default (one needs to disable it explicitly)
<davidlt[m]>
In general LTO causes to increase build time (and memory consumption).
<davidlt[m]>
We have been running on potato chips for years now :) Even VF2 looks like a fast electric car for me ;)
<davidlt[m]>
I cannot even image how it will feel with T-HEAD TH1520 or Intel/SiFive Horse Creek :) Probably like a rocket :D
<davidlt[m]>
(and they are way slower than my smartphone)
<cwt[m]>
I built some rust packages, the compiling parts are normal, then LTO kicked in at the end to produce the final binary, and it stayed like that for too long that I thought my board was crashed.
<davidlt[m]>
That's normal :) Welcome to the party ;)
<cwt[m]>
ah... :-)
<davidlt[m]>
If you want anything better it will be TH1520 and Intel/SIFive Horse Creek.
<davidlt[m]>
TH1520 will cost similar to VF2 stuff, but Intel/SiFive mos likely will not (yet it's probably the highest perf stuff, TBD).
<davidlt[m]>
If you want a good value product + upstream support, that's VF2 :)
<davidlt[m]>
Might be TH1520 too, but unknown today. (Who will do the upstreaming is unknown).
<davidlt[m]>
VF2 will get distro support sooner than later. OpenSBI/U-Boot/Kernel upstreaming is ongoing and there are more than needed to boot the system with upstream stuff.