My MacBook pro crashed. I thought that the reason is faulty hard drive, but when installing new operating system on it crashed. Hardware diagnostics gave me this error code 4ns/1/40000000:vdor-17.917. Can anyone tell me what it means?
Earlier Mac models
4ns makes no sense. 4SNS perhaps?
If so it is a faulty voltage sensor. The value represents a dc voltage that is beyond tolerances.
Connect the Mac's power adapter to preclude a spurious error from appearing: Mac notebooks: Apple Hardware Test may report SNS alert when power adapter is not connected (archived)
4ns makes no sense. 4SNS perhaps?
If so it is a faulty voltage sensor. The value represents a dc voltage that is beyond tolerances.
Connect the Mac's power adapter to preclude a spurious error from appearing: Mac notebooks: Apple Hardware Test may report SNS alert when power adapter is not connected (archived)
Lasse1957 wrote:
My MacBook pro crashed. I thought that the reason is faulty hard drive, but when installing new operating system on it crashed. Hardware diagnostics gave me this error code 4ns/1/40000000:vdor-17.917. Can anyone tell me what it means?
4SNS: System sensor voltage error
You have a hardware failure — the resolve is take it in if you want it repaired
In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment
Make an appointment for a "hardware issue"
Genius Bar Reservation and Apple Support Options - Apple
Outside the USA
Contact Apple for support and service - Apple Support
see vintage and obsolete:
Obtaining service for your Apple product after an expired warranty - Apple Support
Obtaining service for your Apple product after an expired ...
Hi,
It could be possible that it might be North Bridge Sensor or any other sensor error. You'd better take your MacBook Pro with error code to your local retail AppleStore, Genius Bar or Apple Authorized Service Provider to be examined your MacBook Pro there.
Genius Bar Reservation and Apple Support Options - Apple
the numerical readings provided with the error sometimes provide additional insights.
In this case a reading of 17.91 for a Voltage sensor suggests the error is from a charging or battery-related sensor, because Voltages around 20 Volts are only for battery charging. Digital logic runs mostly on 5 Volts and 3 volts, with occasional use of 12 Volts.
In obscure cases where you see readings very close to Zero, or very close to a power of 2, (such as 126, when we know 128 is a power of 2) it MIGHT indicate a sensor that is disconnected or failed rather than a circuit problem.
Resetting the system PRAM and resetting the system management controller helped. After those I managed to install the OSX.
Error 4ns/1/40000000:vdor-17.917
