Q: intermittent loud fan sounds

My MacBook Pro 10.1 has been making very loud fan sounds intermittently for a while. I'll be working (word processing) or browsing the Internet, when all of a sudden it starts making really loud fan sounds. If I stop what I'm doing and leave it alone for a while, it stops. At first I thought it might be overheating, so I put it on a special laptop cooling thing (so air can circulate all around it)...but that doesn't seem to be helping.

I do usually have multiple windows and tabs open in Safari. Though I've been doing this since I got it a year and a half ago without issue until now. This problem only started over the last month.

I ran a diagnostic on it last night, and I got a 4HDD/11/40000000:SATA(0,0) error.

CPU Quad Core Intel Core i7

CPU Speed 2.4GHz

Memory 8GB

OS 10.9.1

MacBook Pro with Retina display, OS X Mavericks (10.9.1)

Posted on Apr 7, 2015 12:03 PM

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Q: intermittent loud fan sounds

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by dominic23,

dominic23 Apr 7, 2015 12:42 PM in response to arina83
Level 8 (42,105 points)

Mac OS X

Apr 7, 2015 12:42 PM in response to arina83

Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
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by OGELTHORPE,

OGELTHORPE Apr 7, 2015 1:06 PM in response to arina83
Level 9 (52,764 points)

Mac OS X

Apr 7, 2015 1:06 PM in response to arina83

The Apple Hardware Test is probably irrelevant:

http://support.apple.com/kb/TS4356

If the SMC reset fails to solve the problem. down load iStat menus:

http://bjango.com/mac/istatmenus/

Open Activity Monitor to ALL PROCESSES and set CPU to display values from high to low.

When the fans start spinning look at both and see what application is using a lot of CPU resources:

https://support.apple.com/en-us/HT203184

Post back the results.

Ciao.
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by Lexiepex,

Lexiepex Apr 7, 2015 1:13 PM in response to arina83
Level 6 (10,536 points)

Mac OS X

Apr 7, 2015 1:13 PM in response to arina83

Download AdwareMedic from thesafemac.com
Run it.
Lex
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by arina83,

arina83 Apr 8, 2015 4:43 PM in response to arina83
Level 1 (0 points)

Apr 8, 2015 4:43 PM in response to arina83

Thanks for the ideas everyone. I wound up taking it to the Apple Store today. Turns out there's an issue w/ the CPU fan, so it needs a new logic board. Kinda bummed about that, since its still a relatively new computer. But at least it can be fixed.
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by Lexiepex,

Lexiepex Apr 8, 2015 11:51 PM in response to arina83
Level 6 (10,536 points)

Mac OS X

Apr 8, 2015 11:51 PM in response to arina83

Surprise. Probably something more than that.
I hope it is warranty, and the repair has warranty too.
Lex
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Q: intermittent loud fan sounds

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by dominic23,

by OGELTHORPE,

by Lexiepex,

by arina83,

by Lexiepex,

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