MacBook Pro :: 10.7.4 Becomes Slow After Unplugging The Power But When Power Is On It Works Normally?
Jun 13, 2012
I've been suffering of slow speed on my macbook pro, and this happens when I unplug it from power and just let the battery works itself, then the % CPU usage increases dramatically to 330%Â and the laptop becomes very very slow, what should I do? Because if my macbook is off-power, it doesn't work properly, so what is the point to own a portable computer?
Info:
MacBookPro, Mac OS X (10.7.4)
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May 30, 2012
I have a 13 inch Macbook Pro that sometimes it works fine, but it always suddenly slows down and doesn't fix itself, but the moment I plug it into the electrical power it normalizes itself and works fast without a problem.
Technical specifications:
Intel Core i5
Processor Speed: 2.3 GHz,
1.3 GB free memory.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Jun 1, 2010
I would like to know whether it is safe to, let's say, unplug the power adapter and then replugging it in like 20 seconds, for example, if I'm moving to a new room. Will it have a negative effect on the battery? I tried to search MRoogle but there are so many threads that it is literally impossible to find what you're looking for, sometimes.
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May 29, 2012
My MBP13 (Late 2011) with Lion 10.7.4 suddenly stopped charging...battery level continued to come down when power adapetr is connected...I am able to check MagSafe is working fine in both of its ends..but the system is not charging and there is not LED on when I connect the adapter to system...tried all the possible ways to fix it including SMC reset,,(but i am not sure if SMC reset worked in this case!!).
Info:
MacBook Pro, Mac OS X (10.7.4)
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Jun 17, 2014
It was working OK. I have put it aside for about 1 month during the holiday. Now, it can not be charged. It works on power adaper, the plug has bright green LED on, but always 0% battery. Looks like the power adapter is still working OK, battery issue?
Info:
MacBook Air, Mac OS X (10.7.5)
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Apr 21, 2012
Until recently, my MBA powered down in ~2 secs. It's now taking ~10 secs. It may be down to the O2 usb modem (huawei) that I used but I have already deleted it. I cannot see any residual files in Login Items. I have also run Onyx.
Info:
MacBook Air, Mac OS X (10.7.3)
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Mar 16, 2010
I'm planning on giving my brother my early 2008 aluminium iMac but he lives in Canada; I live in the UK. I read somewhere that iMacs have a voltage recognition ability... is that true? If he buys the equivalent North American power cord, will it work correctly?
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Dec 6, 2007
Does anyone have for a good usb 2.0 card I can install on a power mac G5? I am looking for an internal card not a usb hub.
Information:
Power Mac G5
Mac OS X (10.5.1)
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Jun 26, 2009
Anyone know where I can buy an extra AC cable for the MagSafe 85W power supply that came with my late 08 MBP? I'd like an extra cable and I'm not interested in ponying up the dough for the entire power supply. I checked the Apple Store and Macmall, but haven't found anything as of yet.
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Apr 9, 2012
Last Thursday I down loaded software updates from apple and have been losing power very quickly ever since. It just seems like as soon as I remove the power cord I lose power with in three minutes.
Info:
MacBook, iOS 5.0.1, purchased feb 2009
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Jul 6, 2012
Can I use existing 85w magsafe adapter from existing macbook pro with new MBA 13 magsafe2 port ?
Info:
MacBook Air
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Apr 5, 2012
Like two months ago, my MBP started to work really slow when not plugged to electricity, but as soon as I plug it in, my MBP works perfectly. I already sent it to apple for they to fix it, but they solved other issued except for that one. Please, any idea what could it be.
Info:
MacBook Pro
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Jun 6, 2012
My 2007 intel imac lost power a while back and has been slow and somewhat erratic since that happened. My area suffered a power interuption that lasted a couple of minutes. When i turned the machine on the next day I used the disk utility to verify the disk and repaired permissions. the disk was fine but there were some permission errors which were repaired.After doing all that I found Finder could no longer search and find files, I could still access a file normaly but I could not search for a specific file or a group of files 9 .dmg for example)Firefox was very slow to fully load (30 seconds), one loaded the internet access was fine - 20 mbs or so. I downloaded the latest version of Firefox but it did no good.I had loaded Enequeue a week before the failure occured and that stopped woking. When i would click on a song in my library it would just hang.console error msg indicated the library had changed.A remote printer that had worked fine before the event was no longer reachable. I can see the printer but I can't print to it and if I try to modify the printer settings in CUPS I have to reload the printer driver on the remote machine (a 27" 2011 Imac) because that computer shows the printer as being paused.
All of this seems like it's either a permissions problem or a corrupt system file. I've done the following ton try and fix it Used Disk utility to verify the diskUse disk utility to repair disk permissionsDone a safe mode startReset all the plists.This older imac is used mostly to access my music files on the new Imac, I then use the optical audio output to feed an outboard DAC attached to me stereo in the living room. The new imac is backed up daily but this one is not because it really doesn't have any data on it. It seems that i should be able to fix this without reinstalling everything. Both machines are running OSX 10.6.8.Is there anything else i can try or should i just reformat the disk and reinstall OSX?
Info:
Imac intel 2.4ghz, Mac OS X (10.6)
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Jul 8, 2008
I am having a little trouble with my MAC machine. Right now, it is running very slow, and I usually work on application including Adobe Photoshop and Illustrator. When I opened a file there (file size could be large), I timed it, it took 12 minutes to open & 5 minutes to print. Such situation wouldn't be normal? I was wondering if I add more memory into the system, will it help at all (increase the response time overall)? Or do I need to tune up anything to reduce the loading time?
Here are the main configurations on the MAC machine:
-Power Mac G5
-Dual 2GH z Power PC GS (2.2)
-1 GB DDR SDRAM
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Mar 18, 2009
I'm running a 400MHz Power PC G4 with 256 MB SDRAM and Mac OSX 10.3.9 on the net via wireless and it is SUPER slow. My Mac Geek buddy suggested I install a new hard drive (as it's only got its original 20gb hard drive) as it may increase the speed. Does this sound feasable? The Hard drive isn't full and the mac will only be used for net use as I've given it to me Mum.
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Mar 25, 2012
Is this an indication that some hardware item is needing replacing? After a shut-down I'm having to keep the power button depressed for probably up to a minute before the system comes to life.
Info:
iMac, Mac OS X (10.7.3)
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Oct 4, 2007
I have a very slow boot-up & internet is slow. I have cable dsl
Information:
powerpc g5
Mac OS X (10.4.6)
2ghz
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Mar 19, 2008
My girlfriend has a 12 inch Powerbook G4. She noticed that the battery life was starting to dwindle. Tonight, she tried using it. It wouldn't power up. The battery indicator showed one flickering power circle. The adaptor has the green circle on it, indicating the battery has a full charge. However, the computer won't charge up.I've read the 12 inchers don't have separate PMUs. Could that prevent the machine from starting? She was using it earlier this evening, as she e-mailed me pictures from our vacation.
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Feb 10, 2008
I have a iBook G4 laptop and there seems to be something very wrong with it. It started a few days ago just randomly. I was reading something on the internet and the screen went black on me, but the power was still on (I clicked CAPS LOCK to see if there was power). I then proceeded to push the power button and the power went off. When I pressed the power button again to turn it on, it made that internal noise it always makes and then the fan came on, and wouldn't turn off. There was no picture on the screen at all. Completely dead. But there was power, because when I clicked on the CAPS LOCK, the light came on). I tried pressing on the power button for at least 15 seconds and even went as long as a minute, and the power didn't go off.
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Apr 18, 2008
I had a bad power surge (USB hub that was plugged into the back of the display had the wrong power cord plugged in... very stupid mistake I know!!) take out my 23" Cinema Display. The display shows no sign of life (no power light, etc) and the brick has been tested and is OK. My local service place says that they will have to send the display back to Apple which means a minimum of $400 for repair so I'm wondering if anyone has had a similar issue that they resolved successfully? The service place suggested that Apple would replace the logic board but is there any way to test to see if this is the main issue? I have seen logic boards sold separately online but would be hesitant to buy it without know that this would fix this issue.
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Nov 8, 2007
I made this a new topic because I think it is important enough to do so. Probably most of those that originally complained about this have moved on to the new MacPro but I am sure there are still enough G5 owners out there that still have concerns about this topic.
A clean install of Leopard eliminates the infamous power supply beeping
Its amazing, my G5 is like a new machine; no more of the annoying power supply beep; although, I learned to live with it after a while and didn't even notice it. However, the silence is now very noticeable.
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Nov 19, 2007
Where can I obtain a new 23 Inch Cinema Display power adapter? I've searched the Apple Store but I cannot find it.
Information:
G5 Dual Core PowerPC
Mac OS X (10.5.1)
23 Inch Cinema Display
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Jun 19, 2010
I have found that by plugging in my Apogee Duet firewire audio interface and ONLY WHEN AppleFWAudio was loaded there was a 10c CPU raise that was making my MBP (late 2008) hot!I wanted to monitor the power that was required for Duet to run and to see if the temperature rise was due to that, so:With Apogee drivers uninstalled (just to be sure its not their drivers related, which is notMBP on battery power with System Profiler opened (to monitor the mA required by the computer from System Profiler -> Power)
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May 29, 2012
a friend recently gave me a g5 power mac that had some issues, and the failure was described as intermittant. The machine supposedly would work properly when booted and start freezing up after time, but if turned on the next day it would work properly for some time. I assumed it was an overheating issue, but apperently there is more to the picture. I have tried booting the machine quite a few times and the display always reads no signal. The machine sounds as if it were booting normally, but there is not output. At first I assumed it was my display cable, which was a DVI-D single link, however the DVI-D dual link cable leads to the same result. Is it nessicary to have a DVI-I cable? None of the error LEDs light up on the motherboard. After doing some hunting I haven't found anyone with the same issue, but I am wondering if I should assume the graphics card is dead. What steps do I need to take to isolate a graphics card failure in a power mac g5?
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Oct 8, 2007
I hav" a "late 2004" G5 2.0 dual processor. To upgrade graphics card, I find many require a power supply splitter. Do I have a molex 4-pin connector? I can't see the location inside the box.
Information:
G5 dual 2.0, 2.5Gb
Mac OS X (10.4.3)
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Nov 18, 2007
I have the problem that I need to frequently power cycle (shut off and on) my dsl modem to maintain a reasonable speed with my internet connection. It is making the internet experience pretty user unfriendly. Does any one know whether there is a way to optimize my internet connection such that this is not required so frequently (couple times a day)? I am on my second dsl modem, and the same problem has occurred with each of them. ATT simply advises me that my solution is to power cycle the modem to sync the system, whatever that means.
Information:
Power Mac Dual 2.0 GHz
Mac OS X (10.5.1)
ATT DSL Internet Connection
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Dec 6, 2007
I added 2 sticks of 512 to my power mac g5 1.6. I had ahard time getting the computer to see the new ram, but finally was able to kinda get it working after zapping the pram. However my computer only saw these 2 sticks as 256, odd. So i attempted to troubleshoot the problem. I tried just installing the new ram, but the computer wouldnt boot. I tried a few different combos with the other 4 sticks i had, but nothing. I put the old memory back in, and still nothing. The power led looks to blink once every five seconds or so. I tried pressing the pmu reset button, but still the same out come. I also tried taking out the battery, nothing.
Information:
1.6 g5 single proc
Mac OS X (10.5.1)
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Dec 13, 2007
I had a weird issue this morning. I started computer and it did not make the chime sound, it didn't do anything at all. I disconnected it from the extension cord as well as all the peripherals attached to it and nothing. I tried a different start up disk and again there wasn't a sound. Then i unplugged it and reset the SMU on the mother board and air sprayed the computer to remove all dust. Then plugged it back and it came back on.
Information:
Power Mac G5 Dual 1.8
Mac OS X (10.4.11)
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Oct 7, 2006
I'm using a B&W Power Mac G3 with 512MB RAM and OS X Tiger for a SMB file server (with 5 users) and a USB printer server. Everything is working good, but I have a problem.
It doesn't have a monitor or keyboard/mouse attached normally (I can configure it via VNC). The problem is that I would like to be able to turn the machine off when it's not needed (like at night sometimes, days when I won't be home, etc.). I would like to just hit the power button and have it turn off, however it puts it to sleep instead.
Normally, sleep would be fine, except on the B&W, the fans still run, just the HDs shut off, so it's still noisy as heck.
Is there a way to make the power button shut it off? If not, any other easy methods of shutting it off you can think of? Via VNC won't cut it, as my dad needs to be able to turn it on (not a problem) or off as well.
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Mar 21, 2009
i just got my new imac 2 days ago. I was wondering is there another to turn on the power without pressing the power from button? (cuz i remember u can power on from the keyboard b4)
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