motherboard
US /ˈmʌð.ɚ.bɔːrd/
UK /ˈmʌð.ɚ.bɔːrd/

1.
carte mère
a printed circuit board containing the main components of a computer or other electronic device, with connectors for other circuit boards to be plugged in.
:
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The CPU is installed directly onto the motherboard.
Le processeur est installé directement sur la carte mère.
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Upgrading the motherboard can significantly improve computer performance.
La mise à niveau de la carte mère peut améliorer considérablement les performances de l'ordinateur.