My fans don't go above 2000 rpm when my computer wakes up from sleep

Only when I shut down my computer, and turn it back on do they work. Is there any hope this will get fixed?

What do you do when it behaves correctly immediately after an SMC reset but then the issue persists and the fans fail to increase speed after he wakes the computer up from sleep?
To test, I would back the drive up and install a fresh system to eliminate a software issue.
Dave M.
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DV8T Fan grinding sound when opening lid or returning from sleep mode

I don't know if this is a normal thing, but not always, Id say 50% of the time when the computer wakes or I open the lid there is a breif grinding sound coming from the top left area of the body of the notebook. I am pretty sure it is the fan and im wondering if this is going to eventually lead to a ballance issure with the fan causing it to fail and ultimatly kill the CPU.

I'm having a similar problem that I may have cracked. My screen is on but the backlight is off (so the image is practically 100% on resume from hibernate. Have you reset the pram and cleared the smc?

After update to OS X 10.7.5 on my Mac Pro (2009) USB ports don't work at all after wake up from sleep mode; with 10.7.4 there was (nearly) any problem.

hello,
after update to OS X 10.7.5 on my Mac Pro (2009) USB ports don't work at all after wake up from sleep mode; with 10.7.4 there was (nearly) any problem.
the used ports appear to be "killed"; the unused USB ports seem to work, but the Mac works in slow-motion.
The only "solution" is to restart my Mac.
- SMC-reset, PRAM-reset or repairing user rights had no positive effect; what is the solution - a bug-fix-update???

I have a mac mini (A1283) with OS 10.7.4. Upon upgrading to 10.7.5 it did not start up again. Instead, the light was on and the hard drive did not start up. The light on the connected USB mouse was not lit.
My solution:
Cold start with Command-v pressed.
This should start Verbose mode (see http://support.apple.com/kb/HT1492 ).
What happened on my mac mini was that the grey startup screen with the Apple logo appeared for a long while before the login screen came.
Maybe Cmd-v set open firmware params and fixed some corruption.
Anyway: my mac mini works again.

Don´t wake up from sleep mode

Since few day, my Mac Mini didn´t wake up from sleep mode.
When i click on Mouse or Keyboard, the Mini stay´s at Sleep.
I must shut down the Mini by using the power on/off button.
Also after a few time, the Bluetooth Settings in the Bar Menu getting slower,
it needs a time to pop up the settings windows.
i use 10.8.4.

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, or by corruption of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including sound output and Wi-Fi on certain iMacs. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

G5 won't wake up from sleep & fans go to high speed ???

G5 won't wake up from sleep & fans will go to high speed within a few minutes of it going to sleep. Whether I put it to sleep or it goes to sleep on it's own per my preferences in energy saver. I have to manually shut it down by holding the power button in. I ran the system hardware dvd and results were good. I have repaired permissions, reset the PRAM.
Any ideas?

Hi Patrick,
How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005) ...
http://support.apple.com/kb/HT1436
"Try Disk Utility
1. Insert the Mac OS X Tiger Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, test sleep in Safe Mode, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)

Macbook pro 13" june 2009 fan rpm remains at 2000 rpm when temp is 85c

Hi,
I've just bought a new macbook pro 13 inch and updated software vis software update.
I've noticed that the fan rpm went to 2700 rpm on every boot but
after a few minutes it goes down to 2000 no matter the temperature is
I'm using iStatPro to see the temp and fan
I've tried open youtube videos to raise the temperature to 71 but the fan remains the same at 2000
Please advise.
Thank you

Thank you for the info
I've just tried resetting the SMC but no luck.
since this is my first mac computer so I'm not sure if this is normal or not
after an investigation with different scenarios of work load I found that
room temp : 27c
cold boot : cpu 45c
: fan 2000 / 2700 rpm
warm boot : cpu 58c
: fan 2000 / 2700 rpm
running parallels
with windows 7
and visual studio : cpu 75c
: fan 2000 rpm
The fan did kick in to 3500 rpm once the temp is 85c
I'm not sure if this is normal or not since my Dell M1330 xps
which running vista and visual studio shows only
cpu: 58c
fan: 3000rpm
Thank you
I'm not thinking about using SMC fan control to set the default to 3000 rpm
and use it only when I work on Windows but not sure if the program will damage
my new baby or not
Thank you

My MacBook pro wont wake up from sleep. The screen is blank at all times, but I can hear the fan for 5 sec then everything stops. Please help! I don't kno what to do.

My MacBook pro is about 3 yrs old. It is a 2008 model right before the new design came out. Recently I closed it up which puts it to sleep and a couple minutes later when I opened it up the screen stayed blank but could hear the fan running but then the power clicked like it was shutting down and I could hear nothing more. My power supply is working and I have already tried resetting it. Can anyone help me? I don't live exactly near a Mac store to get help.

Before resorting to an LB change-out, try this, as it has fixed many of the "silver-key" Macbook Pros with wake-from-sleep issues:
1) To get the computer running, do an SMC reset. Instructions here:
http://support.apple.com/kb/HT3964
Your MBP model uses the first option under the subhead, "Resetting the System Management Controller (SMC)"
2) If you get it running, go to System Preferences > Network and select your Airport connection
3) In the result main pane, click the "Advanced..." button.
4) You should be looking at a window with multiple tabs at the top; the "Airport" tab (far left) should be active---if not, make it so.
5) There is a panel showing "Prefered Networks." Use the "minus" button below that window to eliminate any networks that you don't need to access on more than a weekly basis. I'm down to two: the home Airport Extreme Base Station and the network for a museum at which I volunteer once a week.
5) Click "OK" and close System Preferences.
Now try letting it sleep and see it if wakes up.
When this happened to my Late 2007 MBP, I used Console to read system.log and found that, on waking, the compuer was looking for the wireless network at a lodge where I'd stayed weeks earlier and miles away. Clear the morass of old networks and keeping the list short has completely cured my wake-from-sleep issues.
The steps I listed take less time to do than to read, and are within the ability even of novice Mac users.
If that doesn't work, you may need to seek professional help. If you take it to an Apple Store and they recommend a logic board replacement, ask about a "Depot Repair." Instead of replacing the logic board on-site (which will whack you to the tune of US$700-1100), they send the computer to a central Apple refurb facility that fixes whatever they find wrong for a flat fee of about US$315 (last time someone reported using the service here). Turnaround is about one working week, and people who have taken of this service have reported being very pleased with the outcome.
You don't show a geographic location. This service may not be available if you are outside North America.

Should the fan in my MacBook Air be running when the computer is shut and asleep?

Mine is, and this seems like a waste of battery life. I feel like the fan used to shut off when the computer was shut. But now, even when I close the MacBook, the fan still runs as fast as it did when the computer was open. Anyone know what the heck is going on here?

Yeah I think it is a Mavericks thing. Mine actually wasn't too bad. I closed the lid at night when my power was at about 52% and the fan kept going. I just went to bed, and in the morning, the fan had stopped, and my power was still around 51%, so it didn't eat any of my power like I thought it was going to. Mavericks must have the ability to cool your computer when needed even after you close it. It actually turned out to be not that big a deal.

It don't wake up from sleep

I know there's a post called 'Mac Book won't wake from sleep' but since it's a little bit old I wonder if someone still have this problem: when I put my macbook to sleep closing the lid or even closing via software I can't wake up anymore: I got the login window but after writing user and password I can't see my desktop (but I hear the IM sw running).
I got this problem more and more since I've installed Leopard.
Does Apple fixed it? I don't think making a forced shut down is the best.
Merry Christmas
Fabrizio

I have a new macbook (about 3 months old now). Was working fine until a week ago. Cannot wake up the computer. I took it to the Gear shop and was told it could hibernate for weeks! If I plug in the power cord it should wake immediately. It does not! I read that if the power goes below 6% the battery needs to recalibrate. Shut the unit off and unplug the power. Wait 2-5 hours. That worked once. If I keep the power cord plugged in while I'm working why should the batter power reduce? I'm at a loss. Help!

Fan buzzing at idle speed (2000 rpm)

I have a new (2 months old now) 13" MBP. Since new, it has a buzzing noise coming from the fan, which is most annoying at idle speed. I know it is the fan as it ramps up and down with the fan speed. It sounds like the rotating part is lightly ticking on something. If I angle the base, it goes away. I've had the back off to upgrade the RAM, and I carefully inspected the area, but can't see anything the fan would be touching on. Any suggestions as to how to fix this?

MY MBP 15 " ( Nov 2008) has recently had a couple occasions when suddenly the computer starts buzzing.Softly and then gets loud,like a couple of angry hornets.
I shut down the laptop and when I reboot, the noise is gone.
I also seem to think the noise occurs ONLY after I have ported the laptop
I usually carry it in well padded cases but I leave it in sleep mode. I do not always get the buzzing. I have now heard it three times in two months.
Heard it again tonight . I had carried the laptop around my apartment (it is usually stationary connected to my big monitor). Was working with the laptop on my lap. A couple of hours into my working the buzz came.
is it possible there is some internal part which moves when I carry the MPB? But the fact it immediately goes away when I shut down (does NOT go away with restart) would argue against that idea.
Have any of you had this type of experience.
?

HT3964 My MacBook Pro i5 Dual Core has a hardtime waking up when the computer is put to sleep and only when it goes to sleep and has been asleep for a while. The indicator light flashes on and off for a while and then freezes. I've done an SMC reset once.

Does any one have the same problem with their MacBook Pro i5 Intel Dual Core? If the computer goes to sleep (not the screen) and is asleep for a while, when I try to wake it up it doesn't respond. I have to power it downn and restart it and sometimes it takes two or three attempts. Otherwise it works fine. I upgraded the memory to 8 GB. That is the only alteration doen to it. I've performed one SMC restart and now it wakes up but it takes a while and a gray screen shows up. When I insert a DVD it won't start automatically I have to start the application in order to see it. Any suggestions?

http://www.apple.com/support/macbookpro-videoissues/

Does fans in macbook pro 13 schoudl still run 2000 rpm?

Hi i have problem with my macbook pro 13' when it gets high temperature around 95 c fans are still runing at 2000 rpm schoudl they do that or rise

You don't want to use a fan control app because they override the sensors in your MBP.
At 90ºC, I would think that the fans should be running at a far greater speed than 2000rpms. Mine can rev up to around 3000-4000rpms when the machine is really being overtaxed.
I would still recommend taking your machine into an Apple Store or an AASP and having it checked out. If your fans aren't working correctly you could be headed for a thermal shutdown.
Clinton

Fans stuck at 2000 rpm

i received leopard earlier today and installed it, and since then the fans are stuck at 2000 rpm (+/- 5 rpm).
during normal use this is okay, cpu temperatures stay at about 52 C/125 F. but if i start any more processor intensive application (vmware fusion, civ IV, etc.) the temperature rises up sharply but the fans stay stuck at 2000 rpm. when the cpu temperatures reach 80 C/176 F i kill the app because i can't afford to burn my processors.
on 10.4.9 the fans would be running at 6000 rpm at those temperatures...
does anybody know what's going on? i'm feeling a bit panicked and don't dare properly use my mac...

wow! you are a lot braver than i am. i didn't dare let the temperatures go over 80C.
but following your example i decided to test too, and at about 82C the fans started ramping up (though slowly!) allowing the temps to reach over 87C before lowering them again to 80C at about 500 rpm.
it just seems freakily high to me, i hope the apple engineers know what they're doing.
anyway, thanks for testing this for me and solving my problem, i'm more at peace now.

Msi Z68 GD65 (B3) will not resume from sleep with multiplier above 43

I have an i5 2500k that is otherwise stable (can pass prime95 for hours) at 4.4 ghz, but no matter what I do I cannot get my computer to resume from sleep properly when I go over 4.3 ghz. At 4.3 ghz it resumes from sleep fine, but once the multiplier goes over 43 it simply will not resume. The monitor stays in standby mode, but my PC's fans spin up and my keyboard backlight turns on.
I have tried disabling and enabling pll overvoltage, but it does not help.
It resumes from hibernation fine, but that takes quite a bit longer than resuming from sleep because the POST on this board isn't particularly fast.
This happened both with my previous card (560 ti) and my current card (7950), so I seriously doubt it is a GPU issue. I have a seasonic x750 PSU, so I doubt it is a power issue. I have very good cpu cooling and my temperatures are pretty low even under load. Is this a board defect? I see that ASUS boards had a similar issue that was apparently fixed, but I can't find as much info about an MSI isssue.

Being an experienced OC'er, then you know that trial and error is the tried and true time honored method in the attempt to solve problems. The solution I would recommend is to accept an OC of 4.3, stick with hibernation, or continue with experimentation of combinations of settings, or you can hope someone comes along that 'may' know of a 'solution'.
Quote
I see that xxxx boards had a similar issue that was apparently fixed, but I can't find as much info about an MSI isssue.
Big difference between 'apparently' fixed and actually fixed. You might try MSI Technical, but it may be interesting what they say once they know OC'ing is involved.
>> How To Contact MSI <<
Quote
Thank you for the patronizing response. Does anyone have a response that is actually useful instead of generic "you don't know what OCing does" comments? I have been OCing for years; I know what it does to a system. I am looking for SOLUTIONS here.
Some friendly advice is to watch the attitude, or not many will be inclined to offer any assistance at all. Yours is not a situation that the mainboard is non functional, and is more related to an OC'ing behavior.

Fans go on at full speed 1 min. after computer goes to sleep

Problem: Fans go to full speed 1 min. after it goes to sleep-mode. The fans will stay on until it wakes up from sleep-mode.
Computer: Apple Power Mac G5 Dual 2.3, OS 10.4.9, 4.5 GB RAM. 2 HD, late 2005 version.
The problem happens every time I put it to sleep, even right after it has been turned on.
I have measured the CPU temp to be as low as 36-40C and it will still turn the fans on high speed when put to sleep.
I have reset the P-RAM and the SMU.
I have installed a fresh version of OS 10.4.9 on second drive, booted from it and it still turn the fans on 1 minute after it goes to sleep.
I have had all the RAM out beside the original RAM. I did an extended Apple Hardware test which passed.
...any ideas ?
-e
5 Macs in total Mac OS X (10.4.9)

After trying all that, it sounds like it's hardware-related--possible logic board--but try this yet.
Do an Open Firmware reset: Hold the CommandOption+OF keys during startup. At the '>' prompt type:
>reset-nvram
Return
>set-defaults
Return
>reset-all
Return
The reason the fans are taking off, is because the OS stops communicating with the logic board.
-Bmer
Mac Owners Support Group
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My fans don't go above 2000 rpm when my computer wakes up from sleep

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