Mac Mini - no power

I have a Mac Mini (G4 model) that won't power up. Everytime I press the power button, nothing happens - no fan, no chime, no power light, nothing. It's acting like it isn't plugged in (I checked that first). I've tried replacing the power adapter (the power brick), resetting the PMU, and put the original RAM chip back in, but no luck. Has anyone had this problem?

It would help to know what model of mini it is, how old it is, whether there are any signs of life from it at all such as whether the power light glows or you hear any noises when you try and switch it on - and what steps you have already taken to try and find out what the problem is, for instance whether you've tried plugging it into a different outlet (preferably in another part of the house), or checked to see if the power supply gets warm.... that sort of thing.
It would also be better if you posted your question in a new thread so we can try and address your specific issue without risking diverting someone else's thread - or, as in this case, risk missing possible help because the thread has already been marked as solved by the original poster, so those who might be able to help you are more likely to simply pass it by.

Similar Messages

ITunes crashed now Mac mini wont power back on

iTunes crashed now Mac mini wont power back on

You have not provided any information on which to base troubleshooting. Minimal information would include the Model Mac mini you have for example Mid 2010 Mac mini, exactly what happened when iTunes crashed, and what -- if anything -- happens when you try to restart. It is unlikely iTunes has anything to do with the failure to reboot but instead iTunes crashed because of what even caused your Man mini to fail.
Just as a starting point, be sure and check all your connections, power, monitor, keyboard, mouse, everything. You would not be the first to have a plug come adrift unexpectedly.

Switching from PC to Mac mini, enough power to perform tasks?

Switchingfrom PC to Mac mini, enough power to perform tasks?
Tasks:archiving slides, scans at 9600 DPI result 2.5 GB files, some of the scans are around 60 MB files. Also intend to edit video. Mostly working in Photoshop cs5.
Miniconfiguration:
i7processor with discret video memory
500GB HD (with external USB 3 storage)
4x1GB RAM and add another 4x1 later
PCDell XPS 8300 configuration:
i7processor
500GB HD (with external USB 3 storage)
12-16GB RAM
Don't know if the mini will be enough of a machine. It can only go up to 8GB RAM, but I know the architecture is different. Also, does the minirun cool and quiet? This is a home environment.
ps operating system is Mac OS X , don't know about the (10.7.2) .

I have both the new Mini Core i5 and my existing Gateway Core 2 Quad PC; both running 64 bit OS. If you're running 32bit OS on a PC, only the first 4Gb is recognized and utilized. The Mini is Lion, the PC is running Vista 64 and I do digital media stuff both for a living and also for fun. First things first..
You need at least 8Gb of RAM to start with the Mini if you're going to deal with HD video and working with CS5 in a 64bit environment. 8Gb of RAM on the Mini just flies, 16Gb even better; albeit noticeable faster than 4Gb especially if you are working with 64bit compliant applications -- I am. My Mini came stock with only 2Gb of RAM, but a pair of Corsair Mac Memory certified RAM I bought from a PC store did the trick. According to OWC (macsales.com), the Mini can be upgraded up to 16Gb of RAM, eventhough Apple official stance is 8Gb. Secondly, throw in a SSD (Solid State Drive); this will speed bootup and applications plus act as a page memory place just in case 8Gb of RAM isn't enough, which is already the case as I am using 64bit applications in dealing with RAW images and HD videos. But because SSD drives are fast, there isn't any lag at all on the Mac. I have a SandForce 6G SSD drive installed on my Mini as a second drive (Mini Mid 2011 has 2 drive bays inside). With the PC, however, you need at least 8Gb of RAM, and even then my PC is complaining that it is running low on memory when I'm working with DXO Optics Pro 7 Elite on RAW files. So the Mac is more memory efficient in usage compared to the PC. My PC too has a pair of SandForce RAIDed in 0 mode to help with memory paging and overall performance boost. The beauty of the PC is that, you have lots of internal bays where you can configure the drives to function in RAID mode, especially RAID 0. With the Mac Mini, you will only have a few choices; there is no option to add USB 3 storage unless you want to go the Sonnet Thunderbolt to Express 34 card USB 3 route which is severely limited by the Express 34 bus speed.
However, with Thunderbolt, you get faster than USB 3 port speed and is the future. You can buy the Pegasus RAID array box for Thunderbolt. It is pricy, but worth the investment.
Last but not least. Mini mostly runs cool if not pushed. If it is pushed, it will run warm enough to keep my coffee warm when placed ontop of the aluminium case. At least, it runs a lot quieter than my PC with those blazing fans spinning at insane speeds when rendering RAW and HD videos (both CPU and GPU).
Hope this helps.

MESSAGERIE EN RESEAU ENTRE MAC MINI ET POWER BOOK

Comment transférer la messagerie par air port d'un mac mini à un power book 14 avec un réseau déjà établi pour internet entre les 2 ?

Cet article contient-il quelque chose utile?
(22485)

Voltage of new Mac Mini (2009) Power Adapter

I want to take my new my new Mac Mini overseas, but when I received it I was surprised to see the power adapter rated at 100v-120v only. The tech specs on Apple's website list the line voltage as 100v-240v and I assumed the power adapter would follow suit. Both my iMac and the power adapter for my macbook are dual voltage.
Can anyone confirm that the new adapter is rated only up to 120v? Apple Support seemed as miffed by the discrepancy as I was. Additionally, Apple does not seem to have a special dual-voltage power adapter for sale. I would like to be able to plug the mini into a 220v grid, but will not do so unless I can find a definitive answer to the question above.
Thanks.

Thanks for the information, but I think we are talking about slightly different things. The watts are equal to volts * amps. I believe the power brick ensures that the mini is powered by 110W, but the the brick itself has to be appropriately rated for the local voltage or else it will not function correctly.
For instance, if my mini power brick is truly rated for 100v-120v and I plug it into a 240v outlet, then I would expect to hear a pop and smell some burnt electronics. It might spare the mini, but the adapter could fry. I speak from experience--I was careless with a treadmill in the past.
I believe that you mean you use 240v power and your adapter works fine. Could you do me a favor? Could you look at the small print on your mini adapter and see if it says 100v-240v or something else? If it says 100v-120v and it still works in the UK, then mine might be ok for 240v as well.
Thanks again.

Mac Mini intermitent power up

Hello,
I have a Intel Mac Mini Dual Core 1.66 that is becoming more and more reluctant to power up. On pressing the power up button it often fails to power up first time. Sometimes it will go at the second or third attempt. Other times after much plugging in and out and waiting 10-20 mins it will power up. My first thought is the Power Adaptor. However, there is at least some power getting through as my external soundcard connected by firewire is getting power as it lights up. (disconnecting the soundcard does not result in an instant start so it is not the problem) Any thoughts before I order a replacement power adaptor? So far it has always powered up within about an hour. At the moment it is powered up but running the fan at full.
Any thoughts would be appreciated.
Andy

Do an SMC reset, that controls power-related operations:
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
One of the issues an SMC reset can fix is when the computer doesn't respond to the power-on button.

Does Mac Mini require power adapter for European voltage?

Does mac mini require a power adapter to safely operate on European voltage?

lupunus wrote:
cherylfrommiami wrote:
Thanks Anamusic! Since my other Apple products have the square adapters (iPhone, iPad, macbook) it seemed strange only to have a plug cord for mini. don't want to fry it over here in Europe.
You only will need a new Duckhead US-Plug-Type C (2 pin Europlug) for your MagSafe power adaptor. See picture below.
All Apple MagSafe adaptors are mulitivoltage devices and support AC 100V to 240V
All Mac's with build in power supply (like iMac) have also multivoltage units.
Mac Mini uses (depending on production year) different power units, Mac Mini 2011 have a internal power supply, but ALL are "multivoltage".
So you just have to change the cord or use a adaptor.
The above adaptor is suitable for use with Apple's laptop power adapters, and some other products e.g. some iPod, iPhone, iPad adapters. It will however not fit the Mac mini of any generation.
Also, only the MacBook, MacBook Pro, and MacBook Air have the Mag Safe connector which is at the laptop end of the cable. The picture you posted is for the wall socket end of the cable. Older Mac mini computers use a proprietary connector, the 2010 and 2011 models use a standard IEC C7 connector.

Mac Mini Wont Power On

I recently moved house, before which my mini was working flawlessly. After the move set up the machine and went to power on, and nothing.
After checking fuses etc. i tracked down a friend with a power supply and tried that. The machine power on and chimed, and so i assumed it was a power supply issue.
I got a new power supply today, plugged it in and the machine burst into life. It worked fine for an hour and a half while doing software updates etc. so several reboots and power cycles.
I then decided to move the machine into the other room after which exactly the same problem occurred. The machine will now not power on, no light, no chime etc.
It seems really odd that it worked fine for an hour or so on the new adaptor. Ive stripped the machine apart, cleaned everything, put it back together and still no luck with either power supply.
Has anyone got any ideas for fixing this machine, as my only other option is to strip it for parts, which seems such a shame for what was a great little computer, and could have been put to good use turning my parents into "Switchers".
Thanks in advance

Welcome to Apple Discussions!
If this is a PPC mini as your sig line suggests, it may be that the battery which powers the parameter RAM is low. A PRAM reset might help:
-Shut down the computer.
-Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in the next step but one.
-Turn on the computer.
-Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
-Hold the keys down until the computer restarts and you hear the startup sound for the second time.
-Release the keys.
If that doesn't help you, it could be the power management unit, in which case a reset (as follows) might resolve this (do not perform this if the unit is an Intel model):
-Unplug all cables from the computer, including the power cord.
-Wait 10 seconds.
-Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
-Let go of the power button.
-Press the power button once more to start up your Mac mini.

Mac mini g4 power pc won't download please help I'm new mac

I have used Mac mini g4 2005 run Mac os x 10.3.7 but I can't Download. I don't know why is my forts Mac and I think sale because I don't know how download and also won't open YouTube too please help thanks how configure please thanks

Thanks for the suggestions.
I did try the DIMMs one at a time, plus in pairs, and no luck.
But I think you were on to something about trying a different CD. I don't have the System CD for this machine, nor do I have a System 9 CD. I had tried an OS X 10.3 installation CD and a Disk Warrior CD, but those wouldn't work. I did find an Apple Extended Care CD (which had a version of TechTools on it) that I got with my Powerbook, and lo and behold, the G4 started up off of that! So I turned off the machine, connected the hard drive again and restarted. It booted up off the hard drive and I was able to connect to the network and everything.
But then I got greedy. I thought whatever was wrong was now magically fixed (magic being my most relied upon Apple repair tool) and popped all the RAM back in. Turned it on, kernel panic. Darn. Took the RAM back out, turned it on, kernel panic. Uh-oh. So I put the RAM back in and tried to start it off the Extended Care CD again. It started up OK from the CD. Then I tried to boot from the hard disk again, and it booted up just fine, no problems at all. I had to reset the clock, but everything works.
So I still don't know what's going on with the machine. Maybe it was the battery after all, but it couldn't boot until something was reset. It's a mystery, I guess.

HT3231 How can I migrate to new Mac mini from Power Mac G5 running Mac OS X 10.4.11 (85165)?

Mac Mini's Migration Assistant requires a version of Migration Assistant on Mac G5 which isn't compatible w/ OS X 10.4.11. So Migration Assistant won't proceed with a migration. Any way around this?
Greg

Someone in the Tiger Forum may have an answer.
https://discussions.apple.com/community/mac_os/mac_os_x_v10.4_tiger

Unable to boot my Mac Mini after power failure

My Mac was turned on when the power went off and then on again briefly today, I've tried several times to start, it's starts up to the greyish screen with the apple in the middle, then goes to a light blue screen with a pinwheel that appears then disappears over and over. I tried to boot with Snow Leopard installation cd but CD is getting ejected immediately.

check out this discussion.
you should definitely get a decent UPS to protect your investment.
something like the APC Back-UPS ES 700 should suffice.

Unexpected power off now mac mini want boot up pass the grey screen

i have a mac mini the power went off when it came back on and i tryd to cut mini back on it only went to gray apple screen them goes out the monitor says not supported i need to get class assignments off of it.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Power on Plug Support - Mac Mini

Hello all.
I was wondering if anyone knows how to implement a power on plug feature with the intel based Mac minis. More specifically, I am trying to get the Mac to automatically turn on after a power outage when power is restored. Many LCD TVs and monitors have such a function.
Is there a way to do this with the Mac?

Thank for the help and nice find!
If anyone is trying to get this functionality using solely Windows, you will need a program call WPCRSET to set the appropriate register on the Intel 82801GB ICH7 controller hub. Mac OS automaticaly sets the register during boot, but Windows does not. WPCRSET install a system service that sets registers during Windows startup. I have tested it and it works on Vista.
Additional information can be found here:
http://blog.nicotine.co.za/apple/auto-restarting-an-intel-mac-mini-after-power-f ailure/

Mac Mini repeatedly getting "Press power button and restart your computer"

I keeping getting the following message coming up on my Mac Mini "Press power button and restart your computer". I have a G4 Mac mini and it boots up fine and runs ok for about 10 mins however after that time (if left) the message comes up. I restart the machine and the same thing happens again.

Isolate the cause as my FAQ suggests. Backup, or recover your data first*
http://www.macmaps.com/backup.html
and then discover if the issue is hardware, a directory, or software.

Mac Mini won't start with scheduler after power loss

Hello,
I have a Mac Mini here. It is configured to start at a certain time (say 1:00 AM). In the evening I shut down the Mac Mini and power off the socket where it is connected. In the morning I switch on the power socket and the Mac Mini is not starting.
When I do the same thing with an iMac everything works. The iMac will start because he missed the 1:00 AM.
I checked this with the current Mac Mini MC815D/A: here it works again!
So, what is wrong with my Mac Mini? I have this model:
APPLE #MAC MINI 2.4GHz (MC270LL/A)
Model No: A1347 (EMC 2364)
Model ID: Macmini 4,1
Can this be verified my some other user?
I use the latest firmware, and this behaviour shows up on several OSes (Snow Leopard, Lion and Mountain Lion)
Best regards
Matthias

Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, then move these files to the Desktop.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
/Users/YourUserName/Library/Preferences/com.apple.systempreferences.plist
/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
(Then Trash the original of these last two, as "moving" them only copies them.)
Then reboot once more.

Mac Mini - no power

Similar Messages

Maybe you are looking for