On Wednesday 30 October 2019 16:26:08 andy pugh wrote: > Apparently the Pi4 overheating is the USB, not the CPU, and there is a > fix... > > https://hackaday.com/2019/10/30/rpi4-now-overclocked-net-booted-and-po >wer-sipping/
I did the upgrade and now I can "sudo reboot" it from here in the house. I couldn't before, taking a full shutdown and power cycle. Thats a definite improvement. FWIW, I gave a slow fan from an old video card, a 12 volt fan running of 5 volts, and 4 heat sinks of the stickon variety, including what I think is the usb chip right behind those connectors. I've not had any heating problems that I am aware of since mount it chip side toward the fan, upside down so there no twist in the spi cable to a right side up 7i90HD, and the cable is only an inch long. Latency is by itslf, a red hair under 15 u-secs. Start a session of glxgears an its about 49 u-secs, but due to the slow network just under 3 fps if pulled out to nearly full screen. From its own screen, full screen was 59 fps. I can live with that :) But my keyboard just died, new battery's didn't fix it, but after new battery's a shut off and a turn back on of the port of the usb hub the dongle is plugged into revived it. Must be getting close to Halloween. :) Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
