MacBook Air (13-inch, M4, 2025)

Temperature sensors and genuine parts of the MacBook Air (13-inch, M4, 2025) (Mac16,12), as FixStat reads them.

Model identifier Mac16,12
Chip Apple M4
Board J713
Sensors named 75 (23 verified by test)

Temperature sensors

Names from load tests on the bench (CPU, GPU, SSD, charger): “verified by test” sensors followed the matching load; the others are named from the chip and key patterns.

CPU

SensorSMC keyNaming
Efficiency cluster 1Te05verified by test
Efficiency cluster 2Te09verified by test
Efficiency cluster 3Te0Hverified by test
Efficiency cluster 4Te0Sestimated
Performance cluster 1Tp01verified by test
Performance cluster 10Tp1Festimated
Performance cluster 11Tp1Restimated
Performance cluster 2Tp05verified by test
Performance cluster 3Tp09verified by test
Performance cluster 4Tp0Dverified by test
Performance cluster 5Tp0Vverified by test
Performance cluster 6Tp0Yverified by test
Performance cluster 7Tp0bverified by test
Performance cluster 8Tp0everified by test
Performance cluster 9Tp1Bestimated

GPU

SensorSMC keyNaming
GPU cluster 1Tg0Dverified by test
GPU cluster 2Tg0Hverified by test
GPU cluster 3Tg0Lverified by test
GPU cluster 4Tg0Pverified by test
GPU cluster 5Tg0Vverified by test
GPU cluster 6Tg0Yverified by test
GPU cluster 7Tg0everified by test
GPU cluster 8Tg0kverified by test
GPU cluster 9Tg0nverified by test

SSD

SensorSMC keyNaming
SSD (NAND) channel 1TN0n HID “NAND CH0 temp”verified by test
SSD proximity 1TH0Tverified by test
SSD proximity 2TH0xverified by test

Battery

SensorSMC keyNaming
Battery (gas gauge) 1TG0B HID “gas gauge battery”estimated
Battery (gas gauge) 2TG0C HID “gas gauge battery”estimated
Battery (gas gauge) 3TG0H HID “gas gauge battery”estimated
Battery (gas gauge) 4TG0V HID “gas gauge battery”estimated
Battery (gas gauge) 5TG1B HID “gas gauge battery”estimated
Battery (gas gauge) 6TG2B HID “gas gauge battery”estimated
Battery pack 1TB0Testimated
Battery pack 2TB1Testimated
Battery pack 3TB2Testimated

Enclosure

SensorSMC keyNaming
Ambient (virtual)TVA0estimated
Palm rest 1Ts0Pestimated
Palm rest 2Ts1Pestimated
Enclosure surface 1 (virtual)TVS0estimated
Enclosure surface 2 (virtual)TVS1estimated

Board and other

SensorSMC keyNaming
Charger proximityTCHPestimated
I/O ports proximityTIOPestimated
Memory VR proximityTMVRestimated
PMU proximityTPMPestimated
Power input proximityTPSPestimated
Wi-Fi module proximityTW0Pestimated
PMU die 1TP1b HID “PMU tdie1”estimated
PMU die 2TP2b HID “PMU tdie2”estimated
PMU die 3TP3b HID “PMU tdie3”estimated
PMU die 4TP4b HID “PMU tdie4”estimated
PMU die 5TP5b HID “PMU tdie5”estimated
PMU die 6TP6b HID “PMU tdie6”estimated
PMU die 7TP7b HID “PMU tdie7”estimated
PMU die 8TP8b HID “PMU tdie8”estimated
PMU die 9TP9b HID “PMU tdie9”estimated
PMU NTC 2TP2d HID “PMU tdev2”estimated
PMU NTC 3TP3d HID “PMU tdev3”estimated
PMU NTC 4TP4d HID “PMU tdev4”estimated
PMU NTC 5TP5d HID “PMU tdev5”estimated
PMU NTC 6TP6d HID “PMU tdev6”estimated
PMU NTC 7TP7d HID “PMU tdev7”estimated
PMU NTC 8TP8d HID “PMU tdev8”estimated
PMU2 die 1TR1b HID “PMU2 tdie1”estimated
PMU2 die 2TR2b HID “PMU2 tdie2”estimated
PMU2 die 3TR3b HID “PMU2 tdie3”estimated
PMU2 die 4TR4b HID “PMU2 tdie4”estimated
PMU2 die 5TR5b HID “PMU2 tdie5”estimated
PMU2 die 6TR6b HID “PMU2 tdie6”estimated
PMU2 die 7TR7b HID “PMU2 tdie7”estimated
PMU2 die 8TR8l HID “PMU2 tdie8”estimated
PMU2 die 9TR9l HID “PMU2 tdie9”estimated
PMU2 NTC 2TR2d HID “PMU2 tdev2”estimated
PMU2 NTC 4TR4d HID “PMU2 tdev4”estimated
PMU2 NTC 5TR5d HID “PMU2 tdev5”estimated

31 more keys are constant, unpopulated or aggregates of other sensors; FixStat lists them only in raw lists.

Genuine battery

Values of original Apple packs recorded at the bench. FixStat's originality check compares a pack with them (a consistency check, not proof).

Design capacity4629 mAh
Gaugebq40z651
Cells in series3
Chemistry IDs29845, 29961
Cell makersCOS, ATL
Genuine packs seen2