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Apple Computing Products:
macOS - Notebook Hardware
MacBook Air A1466 - No chime, no picture, fan spinning
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<blockquote data-quote="j.bisous" data-source="post: 1881011" data-attributes="member: 407655"><p>Hello!</p><p>I just got and MacBook Air A1466 EMC 2925 (820-00165-A) but it doesn't chime with not light on keyboard and black screen, just the fan spinning.</p><p>I noticed something weird with the fan:</p><p>- When the charger is connected, he powers up on his own (one time fan spining for 5 seconds, stops, then solid normal fan spining until I force the shutdown).</p><p>- When I try to run the Mac on battery, he is just power cycling (fan spinning for 10-15 seconds and then stop before restarting again and so on).</p><p>I already tried to reflashed the BIOS: nothing changed.</p><p></p><p>Here are some measurements but I think everything is good here:</p><p></p><p>PPBUS_G3H = 8.6v</p><p>PP3V3_S5 = 3.359v</p><p>PP5V_S5 = 5.13v</p><p>PP3V3_SUS = 3.359v</p><p></p><p>PCH_INTRUDER_L = 3.361v</p><p>RTC_RESET_L = 3.353v</p><p>PCH_SRTCRST_L = 3.353v</p><p>PCH_INTVRMEN = 3.241v</p><p>PCH_DSWVRMEN = 3.241v</p><p>S5_PWRGD = 3.406v</p><p>PM_DSW_PWRGD = 3.442v</p><p>PM_BATLOW_L = 3.36v</p><p>PM_RSMRST_L = 3.308v</p><p>PM_PWRBTN_L = 1.017v</p><p>SMC_ONOFF_L = 3.423v</p><p></p><p>PP3V3_S4 = 3.356v</p><p>PP5V_S4RS3 = 5.14v</p><p>PP3V3_S3 = 3.36v</p><p>PP1V8_S3 = 1.108v</p><p>PP1V2_S3 = 1.213v</p><p>PP5V_S3_RTUSB_A_F = 5.14v</p><p></p><p>PP5V_S0 = 5.12v</p><p>PP3V3_S0 = 3.358v</p><p>PP1V05_S0 = 1v</p><p>PP1V5_S0 = 1.522v</p><p></p><p>P5VS4RS3_PGOOD = 3.357v</p><p>P1V8S3_PGOOD = 3.355v</p><p>DDRREG_PGOOD = 3.357v</p><p>P1V05S0_PGOOD = 3.356v</p><p>ALL_SYS_PWRGD = 3.355v</p><p></p><p>CPU_VCCST_PWRGD = 1.032v</p><p>CPU_VR_EN = 1.063v</p><p></p><p>PPVCC_S0_CPU = 1.82v</p><p>PP0V6_S0_DDRVTT = 0.610v</p><p></p><p>CPU_VR_READY = 1.061v</p><p>PM_S0_PGOOD = 3.442v</p><p>PM_PCH_PWROK = 3.443v</p><p>CPU_VIDALERT_L = 1.061v</p><p>CPU_VIDSCLK = 1.061v</p><p>CPU_VIDSOUT = 1.061v</p><p></p><p>SMC_DELAYED_PWRGD = 3.439v</p><p>PM_PCH_SYS_PWROK = 3.442v</p><p>LPC_PWRDWN_L = 3.36v</p><p>PLT_RESET_L = 3.36v</p><p>PLT_RST_BUF_L = 3.36v</p><p></p><p>EDP_PANEL_PWR = 0v</p><p></p><p>SMC_LSOC_RST_L = 8.6v</p><p>SMC_MANUAL_RST_L = 2.682v</p><p>SMC_RESET_L = 3.4v</p><p>PM_SYSRST_L = 3.308v</p><p>CHGR_RST_L = 3.402v</p><p></p><p>SMC_CPU_VSENSE = 1.818v</p><p>SMC_P1V05S0_VSENSE = 1.066v</p><p>PP1V05_SUS = 1.073v</p><p></p><p>I don't have any ideas on what to check next...</p><p>Any ideas?</p><p></p><p>Ps: Sorry for bad English</p></blockquote><p></p>
[QUOTE="j.bisous, post: 1881011, member: 407655"] Hello! I just got and MacBook Air A1466 EMC 2925 (820-00165-A) but it doesn't chime with not light on keyboard and black screen, just the fan spinning. I noticed something weird with the fan: - When the charger is connected, he powers up on his own (one time fan spining for 5 seconds, stops, then solid normal fan spining until I force the shutdown). - When I try to run the Mac on battery, he is just power cycling (fan spinning for 10-15 seconds and then stop before restarting again and so on). I already tried to reflashed the BIOS: nothing changed. Here are some measurements but I think everything is good here: PPBUS_G3H = 8.6v PP3V3_S5 = 3.359v PP5V_S5 = 5.13v PP3V3_SUS = 3.359v PCH_INTRUDER_L = 3.361v RTC_RESET_L = 3.353v PCH_SRTCRST_L = 3.353v PCH_INTVRMEN = 3.241v PCH_DSWVRMEN = 3.241v S5_PWRGD = 3.406v PM_DSW_PWRGD = 3.442v PM_BATLOW_L = 3.36v PM_RSMRST_L = 3.308v PM_PWRBTN_L = 1.017v SMC_ONOFF_L = 3.423v PP3V3_S4 = 3.356v PP5V_S4RS3 = 5.14v PP3V3_S3 = 3.36v PP1V8_S3 = 1.108v PP1V2_S3 = 1.213v PP5V_S3_RTUSB_A_F = 5.14v PP5V_S0 = 5.12v PP3V3_S0 = 3.358v PP1V05_S0 = 1v PP1V5_S0 = 1.522v P5VS4RS3_PGOOD = 3.357v P1V8S3_PGOOD = 3.355v DDRREG_PGOOD = 3.357v P1V05S0_PGOOD = 3.356v ALL_SYS_PWRGD = 3.355v CPU_VCCST_PWRGD = 1.032v CPU_VR_EN = 1.063v PPVCC_S0_CPU = 1.82v PP0V6_S0_DDRVTT = 0.610v CPU_VR_READY = 1.061v PM_S0_PGOOD = 3.442v PM_PCH_PWROK = 3.443v CPU_VIDALERT_L = 1.061v CPU_VIDSCLK = 1.061v CPU_VIDSOUT = 1.061v SMC_DELAYED_PWRGD = 3.439v PM_PCH_SYS_PWROK = 3.442v LPC_PWRDWN_L = 3.36v PLT_RESET_L = 3.36v PLT_RST_BUF_L = 3.36v EDP_PANEL_PWR = 0v SMC_LSOC_RST_L = 8.6v SMC_MANUAL_RST_L = 2.682v SMC_RESET_L = 3.4v PM_SYSRST_L = 3.308v CHGR_RST_L = 3.402v SMC_CPU_VSENSE = 1.818v SMC_P1V05S0_VSENSE = 1.066v PP1V05_SUS = 1.073v I don't have any ideas on what to check next... Any ideas? Ps: Sorry for bad English [/QUOTE]
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Apple Computing Products:
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MacBook Air A1466 - No chime, no picture, fan spinning
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