Default Fan RPM with Lion vs. ML

[chefwong]

I've been troubleshooting my MBP after post ML upgrade. 16GB Corsair Memory with Crucial M4 SSD. Nary a hiccup with Lion, at least 2-3 lockups per day after ML. In looking at temps, I noticed that the *default* RPM speed of ML is 2000RPM versus the *default* RPM speed of Lion is 4000 RPM.

Anyone else notice this.

Still debugging, monitoring temps, etc to determine the root cause of the lockups.

 

[maflynn]

My default fan speed has always been 2,000, whether we're talking Snow Leopard, Lion or Mountain Lion

 

[chefwong]

My older late 2010 MBP, running Lion...when I went to check and compare, the default fan speed was 4000

 

[SpazzyMac]

my default speed is definitely lower
stays at 71°C without killing my ears, so it is definitely an improvement with the heat output tolerance, only cranks it up when it's above 4000rpm for 80°C+

 

[sweetbrat]

My 2011 MBP always had a default fan speed of 2000 RPM on Lion. As far as I know, that's always been the standard.

 

[chefwong]

Genius Bar tomorrow.

I give up. 2nd lockup of the day.

Not sure if motion sensor has any play in this, but sometimes, if I just simply flip the lid down and put it down on a desk or something, the minute I put it down...it's goes into lockup. You know it's happened as it makes the system lockup *error noise*...

 

[gentlefury]

Have you tried restoring the OS? That's all they will do for you. My rMBP was crashing and doing weird things last week, I restored to my time machine and now everything is working perfectly.

 

[Queen6]

Default fan rpm for Lion is 2K....

 

[sweetbrat]

If just setting the computer down causes problems, have you checked to make sure the RAM is seated properly? Maybe one of the chips is loose. Just a thought.

 

[chefwong]

Mem is nice and snug.
Rerunning Prime 95 again just to rule out mem