Subj : Re: Pi-FAN for RPi4 with 4 (instead of 3) cables? To : The Natural Philosopher From : Pancho Date : Sat Dec 07 2024 12:31:59 On 12/7/24 11:54, The Natural Philosopher wrote: > On 06/12/2024 14:53, s|b wrote: >> On Thu, 5 Dec 2024 07:48:59 +0000, The Natural Philosopher wrote: >> >>>> Tnx for the follow-up. According to the shop I could just snip the >>>> green >>>> wire, so I've done that. I've set it to run at 60°C and the fan's not >>>> turning (CPU temperature is 48°C). >>> My Pi 4B runs about that with no fan >> >> That's what I'm saying: it's 48°C when the fan is not running. Software >> only allows to set a minimum temperature of 60°C before the fan starts >> running, so I unchecked the setting and now the fan is turning all the >> time. A fan with only 2 cables (red & black) should have been enough. I >> don't know if there's a way to set that minimum temperature to 40°C... >> >> But yes, it's not really necessary and  I shouldn't have bought it. But >> it was fun setting it up. I use RPi4 for Pi-Hole and PiVPN. I've played >> a little with RetroPie, so maybe I'll give that another go, because I >> have two RPi4 now. >> >> I used a Pimoroni Heatsink Case for the first one I bought: >> > raspberry-pi-4?variant=29430673178707> >> >> Temperature is around 40°C. >> >> The Unity V2 comes with a fan: >> > search=unity> >> >> Temperature is between 30° and 35°C. (There's a real peak when I open >> Fx.) >> > > It's an interesting thought as to why one would use a fan at all. If its > such a high compute task that you need one, maybe a bigger Pi or an > Intel based machine is indicated. > Heat is often about continuous utilisation, like CCTV. On my Pi4 I have a heavy aluminium case that serves as a heat sink, it is fine without a fan. On my Pi5, I use the official active cooler heat sink, which has a fan. But a good fan, in that it only comes on during the hottest days of summer. In a moment of stupidity I also bought a metal case for the Pi5 which messes up my USB keyboard/mouse dongle (reflection?), I haven't checked to see what it does to Bluetooth and WiFi. > I dislike fans. They fail. > They do, but they normally last for years. --- SoupGate-Win32 v1.05 * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3) .