Is Apple Hardware Test Accurate?

dnspade · Dec 28, 2012, 03:01 PM

Have run the "extended test" of the AHT on line. There were no faults found. However, I am having battery/charging issues.

Is AHT reliable or could I have a "bad" logic board despite the test passing? Thx.

ConCat · Dec 28, 2012, 03:05 PM

It is reliable, but sometimes batteries reach their end of life. It won't necessarily appear on the test, you just have to get a new one. I suggest bringing it to an Apple Store first so they can perhaps swap out the old one with a new one, just to make sure it really is the problem, before purchase.

DJLC · 01:53 AM

AHT has missed things before that my AASP later ended up finding. And I should mention that we've had quite a few battery / charging / power problems on the 2012 MBAs at work (we have 200).

Reset your SMC and make sure you've installed firmware updates.

dnspade · Dec 28, 2012, 10:25 PM

Quote:

Originally Posted by DJLC

AHT has missed things before that my AASP later ended up finding. And I should mention that we've had quite a few battery / charging / power problems on the 2012 MBAs at work.

Reset your SMC, make sure you've installed firmware updates. Failing that, off to AppleCare!

Excuse the ignorance, but how would I know if I'm current on the firmware updates? Have upgraded to Mountain Lion, current on the "software updates" that i review weekly, but have a feeling there may be something I'm missing here....

DJLC · Dec 29, 2012, 01:52 AM

Firmware updates come through the usual Software Update channel — or the App Store in ML. As long as you have none in the list, you're good.

Try resetting the SMC as described by Apple here. Failing that, head to an AASP or Apple Store.

Dec 28, 2012, 03:01 PM	#1
dnspade macrumors newbie Join Date: Feb 2012	Is Apple Hardware Test Accurate? Have run the "extended test" of the AHT on line. There were no faults found. However, I am having battery/charging issues. Is AHT reliable or could I have a "bad" logic board despite the test passing? Thx.
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Dec 28, 2012, 03:05 PM	#2
ConCat macrumors 6502a Join Date: Jul 2012 Location: behind you. No, seriously.	It is reliable, but sometimes batteries reach their end of life. It won't necessarily appear on the test, you just have to get a new one. I suggest bringing it to an Apple Store first so they can perhaps swap out the old one with a new one, just to make sure it really is the problem, before purchase. __________________ Con + Cat
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Dec 28, 2012, 03:38 PM	#3
DJLC macrumors 6502 Join Date: Jul 2005 Location: Mooresville, NC	AHT has missed things before that my AASP later ended up finding. And I should mention that we've had quite a few battery / charging / power problems on the 2012 MBAs at work (we have 200). Reset your SMC and make sure you've installed firmware updates. __________________ -John Mairs Last edited by DJLC; Dec 29, 2012 at 01:53 AM.
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Dec 29, 2012, 01:52 AM	#5
DJLC macrumors 6502 Join Date: Jul 2005 Location: Mooresville, NC	Firmware updates come through the usual Software Update channel — or the App Store in ML. As long as you have none in the list, you're good. Try resetting the SMC as described by Apple here. Failing that, head to an AASP or Apple Store. __________________ -John Mairs
	0

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