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{"id":2265546,"date":"2019-12-05T19:16:16","date_gmt":"2019-12-05T18:16:16","guid":{"rendered":"https:\/\/www.phonandroid.com\/?p=2265546"},"modified":"2019-12-05T20:11:27","modified_gmt":"2019-12-05T19:11:27","slug":"rapsberry-pi-4-nouveau-firmware-baisse-forte-temperature","status":"publish","type":"post","link":"https:\/\/www.phonandroid.com\/rapsberry-pi-4-nouveau-firmware-baisse-forte-temperature.html","title":{"rendered":"Raspberry Pi 4 : la mise jour du firmware corrige enfin les probl\u00e8mes de surchauffe"},"content":{"rendered":"

Pr\u00e9sent\u00e9 en juin dernier, le Raspberry Pi 4 profite d\u2019une puissance bien sup\u00e9rieure \u00e0 celle de son pr\u00e9d\u00e9cesseur. Mais ce gain implique aussi une hausse consid\u00e9rable de la chaleur produite. Un nouveau firmware sera bient\u00f4t post\u00e9 par la fondation Raspberry Pi pour r\u00e9duire consid\u00e9rablement le probl\u00e8me.<\/strong><\/p>\n

\"raspberry<\/p>\n

Sacr\u00e9 caract\u00e8re la Framboise. Notamment la quatri\u00e8me g\u00e9n\u00e9ration d\u00e9voil\u00e9e en juin dernier. Comme nous l\u2019avons \u00e9voqu\u00e9 dans notre article lors de sa sortie, le Raspberry Pi 4 dispose d\u2019une plate-forme technique bien sup\u00e9rieure \u00e0 celle de son pr\u00e9d\u00e9cesseur<\/a>. Chipset Broadcom 64-bit compos\u00e9 de quatre Cortex-A72 cadenc\u00e9s \u00e0 1,5 GHz<\/strong>. Jusqu\u2019\u00e0 4 Go de m\u00e9moire vive. Processeur graphique compatible 4K<\/strong>. Int\u00e9gration d\u2019un port USB type-C pour g\u00e9rer l\u2019alimentation de la plate-forme. Et une connectique toujours aussi compl\u00e8te.<\/p>\n

Or, apporter plus de puissance \u00e0 un mini-ordinateur veut aussi dire amplifier la consommation d\u2019\u00e9nergie et la production de chaleur. Et c\u2019est l\u2019un des probl\u00e8mes qui entache le Raspberry Pi 4. En veille, le mini-PC consomme 2,89 watts, un chiffre qui monte \u00e0 7,28 watts<\/strong> quand il est pleinement actif. Des chiffres \u00e0 comparer \u00e0 ceux du Raspberry Pi 3B+, qui consomme 1,91 watt et 5,77 watts dans les m\u00eames conditions. La temp\u00e9rature du chipset monte jusqu\u2019\u00e0 72,1\u00b0 en moins d\u2019une minute.<\/strong><\/p>\n