# Pi4! **URL:** \ **Category:** Using Zynthian\ **Created:** [November 17, 2019, 11:42pm UTC](https://discourse.zynthian.org/t/pi4/3448 "2019-11-17T23:42:29Z")\ **Posts on this page:** 20\ **Page:** 4

**Author:** ![Dithered42](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/d/e56c9b/32.png) [@Dithered42](https://discourse.zynthian.org/u/Dithered42)\ **Post date:** [January 1, 2020, 1:30pm UTC](https://discourse.zynthian.org/t/pi4/3448/62 "2020-01-01T13:30:23Z")

That’s not much different than my Pi3B+ runs! Would that rather large heatsink work with the HiFiBerry on top without any danger of shorting? I’m always concerned with heat buildup in electronics, but running in the 50’s is actually fairly moderate for most semiconductors. Certainly nowhere near the tragically bad cooling of an Xbox 360 or any Macbook for that matter. 🙄 I suppose some of the more CPU intensive synth engines (not the sample players) might drive those temperatures up to the point where a heatsink would be necessary. ---

**Author:** ![wyleu](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/wyleu/32/514_2.png) [@wyleu](https://discourse.zynthian.org/u/wyleu)\ **Post date:** [January 1, 2020, 7:57pm UTC](https://discourse.zynthian.org/t/pi4/3448/63 "2020-01-01T19:57:29Z")

> [@Dithered42](#): > > I suppose some of the more CPU intensive synth engines (not the sample players) might drive those temperatures up to the point where a heatsink would be necessary. That sounds like some sort of competitive challenge! Presumably you can rely on the Pi4 to throttle back if things get too hot? Perhaps the number of xruns will increase greatly as the already stressed CPU looses a proportion of its clout at that time. ---

**Author:** ![sm7x7](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/sm7x7/32/3126_2.png) [@sm7x7](https://discourse.zynthian.org/u/sm7x7)\ **Post date:** [January 1, 2020, 8:05pm UTC](https://discourse.zynthian.org/t/pi4/3448/64 "2020-01-01T20:05:47Z")

Yes, it happens on my upgraded to RPi4 Zynthian when I play CPU over-intensive patches in Zynadd… Some xruns appear for the moment or two. ---

**Author:** ![Baggypants](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/baggypants/32/1911_2.png) [@Baggypants](https://discourse.zynthian.org/u/Baggypants)\ **Post date:** [January 1, 2020, 8:48pm UTC](https://discourse.zynthian.org/t/pi4/3448/65 "2020-01-01T20:48:18Z")

The pi4 throttle back temperature is 80C. I’ve never seen it hit that high running Zynthian. Here’s the graph of proof. > **[Adafruit IO](https://io.adafruit.com/Baggypants/dashboards/zynthian-cpu-temp)** > > Adafruit IO is the easiest way to get your projects onto the Internet of Things! ---

**Author:** ![Dithered42](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/d/e56c9b/32.png) [@Dithered42](https://discourse.zynthian.org/u/Dithered42)\ **Post date:** [January 1, 2020, 10:35pm UTC](https://discourse.zynthian.org/t/pi4/3448/66 "2020-01-01T22:35:18Z")

> [@Baggypants](#): > > The pi4 throttle back temperature is 80C. I’ve never seen it hit that high running Zynthian. Here’s the graph of proof. Sure, but what if you’re running ZynAddSubFx and Prime95? 😃 ---

**Author:** ![Baggypants](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/baggypants/32/1911_2.png) [@Baggypants](https://discourse.zynthian.org/u/Baggypants)\ **Post date:** [January 1, 2020, 10:46pm UTC](https://discourse.zynthian.org/t/pi4/3448/67 "2020-01-01T22:46:09Z")

I wouldn’t expect it to impact that much. I did a test with 8 layers of OB-Xd using a brass patch before it started xrunning and it didn’t get beyond 70C. ---

**Author:** ![Dithered42](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/d/e56c9b/32.png) [@Dithered42](https://discourse.zynthian.org/u/Dithered42)\ **Post date:** [January 2, 2020, 12:19am UTC](https://discourse.zynthian.org/t/pi4/3448/68 "2020-01-02T00:19:44Z")

Nice ---

**Author:** ![Baggypants](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/baggypants/32/1911_2.png) [@Baggypants](https://discourse.zynthian.org/u/Baggypants)\ **Post date:** [January 2, 2020, 12:47am UTC](https://discourse.zynthian.org/t/pi4/3448/69 "2020-01-02T00:47:29Z")

At some point you’ve got to ask, what the heck is desktop Linux _doing_ to be able to push the 80C temp throttle within 30 minutes… Gnome, Chromium need to get a grip. ---

**Author:** ![smiths73v3](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/smiths73v3/32/5452_2.png) [@smiths73v3](https://discourse.zynthian.org/u/smiths73v3)\ **Post date:** [January 10, 2020, 11:14pm UTC](https://discourse.zynthian.org/t/pi4/3448/70 "2020-01-10T23:14:56Z")

My fully enclosed road case Zynth using a Pi4 with heatsinks started to xrun at somewhere around 60C. I’ve added a case fan to the front panel that blows directly over the heatsinks, and it now runs about 38C. The ambient room was about 19C in both instances. I have a 7" Pi Foundation display. This places the Pi mounted upside-down making a heat trap, so my build was not optimized for cooling. I direct attached a dumb fan to 5V, next step hopefully this weekend is to add a MOSFET module driven by a GPIO pin PWM, and do some sort of temperature to fan speed mapping. Now welcoming suggestions as to which GPIO I should use… ---

**Author:** ![Baggypants](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/baggypants/32/1911_2.png) [@Baggypants](https://discourse.zynthian.org/u/Baggypants)\ **Post date:** [February 24, 2020, 4:15pm UTC](https://discourse.zynthian.org/t/pi4/3448/71 "2020-02-24T16:15:26Z")

New revision of pi4 with better psu handling. > **[Get in the C: Raspberry Pi 4 can handle a wider range of USB adapters thanks...](https://www.theregister.co.uk/2020/02/21/pi_4_fixed/)** > > Resistance no longer futile? ---

**Author:** ![jofemodo](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jofemodo/32/2_2.png) [@jofemodo](https://discourse.zynthian.org/u/jofemodo)\ **Post date:** [February 26, 2020, 2:50am UTC](https://discourse.zynthian.org/t/pi4/3448/72 "2020-02-26T02:50:57Z")

Fantastic!! Good to know … ---

**Author:** ![B00t-eek](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/b00t-eek/32/1867_2.png) [@B00t-eek](https://discourse.zynthian.org/u/B00t-eek)\ **Post date:** [February 27, 2020, 9:21am UTC](https://discourse.zynthian.org/t/pi4/3448/73 "2020-02-27T09:21:52Z")

Just learned the Pi-4 2gB is dropping in price and the 1gB is no longer in production. Any time frame for official Pi-4 kit? ---

**Author:** ![jofemodo](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jofemodo/32/2_2.png) [@jofemodo](https://discourse.zynthian.org/u/jofemodo)\ **Post date:** [February 27, 2020, 9:30am UTC](https://discourse.zynthian.org/t/pi4/3448/74 "2020-02-27T09:30:36Z")

We’re working on it, but designing and testing a good fanless cooling system has taken longer than expected. Also, we are adding some extra “feature” that would pave the road for new functionality … Anyway, we hope to release the new kit before summer … Regards, ---

**Author:** ![wyleu](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/wyleu/32/514_2.png) [@wyleu](https://discourse.zynthian.org/u/wyleu)\ **Post date:** [February 27, 2020, 9:56am UTC](https://discourse.zynthian.org/t/pi4/3448/75 "2020-02-27T09:56:20Z")

> [@jofemodo](#): > > Also, we are adding some extra “feature” that would pave the road for new functionality OH god here we go again … 😃 ---

**Author:** ![Baggypants](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/baggypants/32/1911_2.png) [@Baggypants](https://discourse.zynthian.org/u/Baggypants)\ **Post date:** [February 27, 2020, 10:44am UTC](https://discourse.zynthian.org/t/pi4/3448/76 "2020-02-27T10:44:39Z")

> [@wyleu](#): > > OH god here we go again … 😃 Place your bets… - Holographic display - built in MOS Technology 6581 added to the zynscreen - A fully supported ported version of Cubase for the Atari ST from 1989 for touchscreens - A 17th MIDI channel - Wiimote integration as an expression controller - Folding Zynthian - Magnetic pogo pin connector for seamless connection of multiple zynths allowing pianoteq to run at 48KHz with 128 polyphony by connecting 64 zynths with two polyphony. - Built in Pez dispenser. ---

**Author:** ![Axeman](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/axeman/32/278_2.png) [@Axeman](https://discourse.zynthian.org/u/Axeman)\ **Post date:** [February 27, 2020, 11:38am UTC](https://discourse.zynthian.org/t/pi4/3448/77 "2020-02-27T11:38:28Z")

My real doubt is what is best between the Wiimote integration and the PEZ dispenser 😃 ---

**Author:** ![Baggypants](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/baggypants/32/1911_2.png) [@Baggypants](https://discourse.zynthian.org/u/Baggypants)\ **Post date:** [February 27, 2020, 1:06pm UTC](https://discourse.zynthian.org/t/pi4/3448/78 "2020-02-27T13:06:28Z")

We could have both! [![](https://farm3.static.flickr.com/2372/2535972609_ccc956b100.jpg) ](https://farm3.static.flickr.com/2372/2535972609_ccc956b100.jpg) ---

**Author:** ![Jtunes](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jtunes/32/16402_2.png) [@Jtunes](https://discourse.zynthian.org/u/Jtunes)\ **Post date:** [February 29, 2020, 5:54pm UTC](https://discourse.zynthian.org/t/pi4/3448/79 "2020-02-29T17:54:06Z")

> [@Baggypants](#): > > A 17th MIDI channel Why stop there? Let’s add 240 MIDI channels! [https://djtechtools.com/2020/01/10/what-is-midi-2-why-does-it-matter/](https://djtechtools.com/2020/01/10/what-is-midi-2-why-does-it-matter/) > MIDI 2.0 will have 256 MIDI Channels and up-to 32 bits of resolution… ---

**Author:** ![Simon](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/simon/32/3258_2.png) [@Simon](https://discourse.zynthian.org/u/Simon)\ **Post date:** [March 1, 2020, 11:42pm UTC](https://discourse.zynthian.org/t/pi4/3448/80 "2020-03-01T23:42:25Z")

I’ve been considering the Pi4 as an upgrade to my 3B (non +) Those who have it, is it a big improvement in performance? I know some of the Synth presets can be quite demanding and some patches on the OBx and reMID are pretty unplayable. Most Synths do seem fine though. Its looks like the LAN and USB ports have been swapped, so I’d have to re-cut parts of my case. Would be interested to hear from those who have upgraded. Simon ---

**Author:** ![Baggypants](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/baggypants/32/1911_2.png) [@Baggypants](https://discourse.zynthian.org/u/Baggypants)\ **Post date:** [March 2, 2020, 12:30am UTC](https://discourse.zynthian.org/t/pi4/3448/81 "2020-03-02T00:30:25Z")

There’s a search option on the forum. But for you. [Would like to configure onboard sound on my rpi4 and latest Zynthian buster image - #6 by Baggypants](https://discourse.zynthian.org/t/would-like-to-configure-onboard-sound-on-my-rpi4-and-latest-zynthian-buster-image/3559/6) > [@Success Cases](https://discourse.zynthian.org/t/success-cases/41/226): > > A bit of precision engineering and I retrofitted a pi4 into a V2 case! [Previous page](https://discourse.zynthian.org/t/pi4/3448.md?page=3) [Next page](https://discourse.zynthian.org/t/pi4/3448.md?page=5)