Imac G5 17" widescreen computerwhe i turn

I bought this computer on ebay. when I turn it on the screen comes up with a padlock and a ? I think this is a password protection on the motherboard is there a way to clear this?

Boot up from your install DVD and run "Repair Disk" from the Utility menu.

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Upgraded to Yosemite and can no longer remote into my work iMac through screen sharing- it is turned on in settings?

My screen sharing functionality did not show up in the dock with an updated icon. It had a question mark- shows my connections but nothing works, I did make sure screen sharing is on and also connected to VPN. Once I tried to launch screen sharing nothing happens. Such an elegant solution in Mavericks not does not work. Ugh. Help!

This is the post that got me set up- I too am running an older version at work vs. Yosemite. As soon as I followed is advice everything worked.
Upgraded to Yosemite and can no longer remote into my work iMac through screen sharing- it is turned on in settings?
I believe the location of the "Screen Sharing" app has changed, which explains why if you had it in the dock it has been replaced by a ?
Don't forget you can launch screen sharing (once your VPN connection is up) by typing in the Safari destination slot vnc://remotemachinename:portnumber (omit the :port number if you are using the default VNC port, 5900). This should launch Screen Sharing and put its icon in the dock. You can drag the Screen Sharing icon to the left of your dock and it will hopefully remain there after you exit Screen Sharing, or you can right-click on the icon when it's running and select Options->Show in Finder to find out its new location and drag its icon to the permanent entries in your dock.
Hope this helps; worked for me.

TS1587 I tried everything, except for reinstalling the SO-DIMM memory modules. Still, my iMac will not wake up. Turning it on you can hear the fan run, but the display stays dark. Any ideas what to do? Thanks Maja

My iMac won't start up, or wake from sleep. I've tried everything, except for reinstalling the SO-DIMM memory modules. Still, my iMac will not wake up. Turning it on, you can hear the fan run, but the display stays dark. Any ideas what to do? Thanks!

Mac doesn't boot
Can you hear the fans and hard drive and see the white boot screen? Flashing question mark? The circle just runs and nothing happens? Only black screen and nothing else? These can be very helpful to diagnose the source of the problem. [1]
Flashing question mark [2]: This is usually a sign of a failed hard drive. This indicates that boot up volume can not be found.
Black screen: This is usually a sign of a failed logic board. There is no single reason for this and this may be caused by failed GPU, screen, CPU or RAM.
Circle of death/no circle/blue screen: This is usually a sign of a hard drive failure. This may NOT be a dead hard drive, just broken permissions or something
Gray screen/Apple logo/spinning gear or globe/prohibitory sign/folder with flashing question mark [3]: This could be a sign of faulty hardware but more likely a software issue, i.e. broken permissions, failed software update, etc.
[edit]
What to do
First, hold down the option key (also known as the alt key) just after you've pressed the power button. This should show all the available options to boot from, so if you have Windows installed through Bootcamp or a disk in your SuperDrive, you should be able to see them along with your OS X drive/partition. Select the OS X partition with arrow keys and press enter. Startup key combinations
If that doesn't help continue doing the steps from below:
1. SMC reset [4]. Shut down and unplug all cables including power cord for at least 30 seconds and then plug in power cord and keyboard/mouse.
2. PRAM reset [5]. Hold down option, command, P and R while booting. Start it when you hear the sound and don't let go before it reboots.
3. Safe boot [6]. Hold down shift while booting to boot into safe mode. If this works, open Disk Utility from Utilities and repair your permissions and verify the disk
4. Hardware test [7]. Insert the install disk (disk 1 in Mac which shipped with OS X 10.5.4 or earlier, disk 2 if shipped with OS X 10.5.5 or newer) and hold down "D" before the grey boot screen opens. Follow on screen instructions
5. Boot from install disk. Boot from the disk that came with your Mac. Hold C while booting. Select Disk Utility from top bar and repair permissions and verify the disk. Reboot normally and see if it works now.
6. Boot from another Mac (Firewire target disk mode). Connect the machines with a Firewire cable. Power on your Mac and press T. Select the other Mac's hard drive. Download the current OS X combo update. Run the combo update installer and select the drive that won't boot as the destination.
7. "Repair" OS X. Boot from the install disk as in point 5. and reinstall OS X. This should NOT erase any data, just replaces the system files which may have caused your booting problem. Now install the latest combo update for OS X and repair permissions on your drive with Disk Utility.
7.1. Install OS X into an external hard drive and then boot from it [8] and try to copy your data from the hard drive before proceeding. If you have done a backup recently, you don't have to do this.
8. Restore OS X from Time Machine backup. Boot from the disk that came with your Mac and choose the Time Machine restore option. This step will lose any changes made since your last backup but the system and your data will be put back to exactly as it was on that date.
8.1 Reinstall OS X. Boot from the install disk as in point 5. and select Disk Utility again. Now erase the whole hard drive and install OS X again. If you had a Time Machine backup and step 7 worked you don't have to do this.

Why is the brightness of my iMac become 100% automatically when I turn on..

Why is the brightness of my iMac become 100% automatically when I turn on my computer even though I set the brightness to the lowest before I shut it down.
I want to set the brightness to the lowest every time I turn on the computer automatically.
Is there anything I can do?

Hi,
There seems to be a serious issue with screen brightness on the 24" iMac. About 6 days ago I bought a 24" iMac (2.66 Mhz model w/4 GB RAM + 640HD).
Out of the box it had Leopard 10.5.5 installed; there were several problems.
1. Screen brightness was way too BRIGHT. Display preferences would not pull brightness down. At least not down far enough so that the screen could be viewed without extreme discomfort. Plus add insult to injury a reboot would reset the preferences to maximum brightness. NOTE: An upgrade to 10.6.1 did NOT fix the issue.
2. Viewing a browser page via either Safari or Firefox (latest versions of each) was not good. A vertical scrolling would be jumpy and appear pixelated. Upgrade to 10.6.1 seemed to fix most of the issue in Safari, but Firefox was still not working properly. The issue appeared like a horizontal "ripple" in about the bottom 2/3 of the browser window. The effect did NOT extend outside of browser window. Changing screen resolutions did not work.
3. Connecting a USB Logitech head set caused issues with Sound preferences.
If the head set was connected during startup the machine would recognize them as main sound. The internals speakers did NOT appear in the Sound preferences. as an optional choice. Removing USB headset and reboot would return the internal speakers to the Sound preferences. Plugging in headseat would work for a while. We could repeat and same problem would occur.
These are all in 10.6.1 - definate bugs.
Returned with the iMac to the Apple store. Bottom line, after nearly three hours; the Apple technician, and everyone could see what we were talking about.
Regarding the screen brightness. Nothing they could do about it. They stated that "not too many people have complained about it, to their knowledge." They stated that the electronics in the "florescent" panel could not be turned down the same way. TRANSLATION: The programers at Apple let this one slip past them. As a customer (software programmer & network analyst) I expected a bit more of an intelligent answer.
However.
Examining the 20" model I noticed that we could turn down the screen brightness - at least to a level that my wife and I could live with. PLUS the settings remained after a restart. Something that was NOT happening with the 24" model.
So - we exchanged the 24" for a 20". Frankly we are a LOT happier. The Safari/Firefox issue is still carried over to the 20". However it is not nearly so noticable on the smaller screen.
Plus the USB headset did not cause the same Sound Preference issues.
So - Thanks for the speedy return/exchange of the iMac. But someone needs to look at this from the programming side of things.

How can I update the Tiger software on an IMAC G5 17" widescreen computer that was corrupted?

I bought a used IMAC G5 17" widescreen computer. It boots up, but does not go to the IMAC screen. I think it had the OS X originally.
I'm new to the MAC computer OS.
It has a 2GHZ PowerPC G5 processor
512 on-chip level 2 cache running at 2GHZ
512MB of DDR SDRAM
160GB Serial ATA hards drive
Slot loading SuperDrive (DVD+r)
17" screen
ATI Radeon 9600 graphics LCD display
built in Airport Extreme Card for wireless networking (802.11g)
built in Bluetooth 2.0 EDR
Included software MAC OS X.
I need to know the simplest steps to download a bootable DVD to upgrade the OS. If I can get the OS to work again. I'll use this for an everyday computer.
Thanks, Dean

There are no legitimate downloads of Mac OS software.
That should be modified to say There are no legitimate downloads of Mac OS software that will run with your computer.
Mac App Store downloads of 10.7, 10.8, 10.9 may be purchased directly off the Mac App Store, but they can not run on a G5, or early Intel Macs.
Now another thing to mention is, dinohhr2, you didn't say which software is included in your purchase. Some people may include 10.4.0, 10.4.3, 10.4.6
in its retail variety, and that looks like: https://discussions.apple.com/servlet/JiveServlet/showImage/102-2541-30-43244/ti ger.jpg
and does not say Upgrade, Dropin, or OEM on it. If they did, you have lucked out, and can upgrade to 10.4.11 free:
Mac OS X 10.4.11 Combo Update (PPC)

HT1338 How much is a iMac 20-inch widescreen computer 2007 going for now of days?

So I am going to try to sell my iMac 20-inch widescreen computer from 2007, and I am trying to use that money to buy a MacBook Air before August 14th and I was just wondering how much I should sell it for.

As a buyer of a used computer, I value installed software at zero, since I already have the apps I want. An erase-and-install on a used computer is sensible anyway, to get a clean system.
On the other hand, I value Applecare on a used computer at at least half of the cost of the coverage, and the third year of warranty is the most valuable one!
John

Imac screen image size fluctuates then turns off

imac screen image size fluctuates then turns off. I have an Imac G3 (slot drive/Grape). It is running on OS 9.2 and I believe has 288 MB Ram.It started acting very odd yesterday. First, I noticed that the image on the screen had shrunken in on the sides and was elongated up and down. I restarted and when it came up the image still wasn't right, but it wasn't as out of proportion. I ran norton and first aid which both said everything was fine. By this time the image had stretched out to its normal size. I printed a couple of things and shut it down. This morning I started it up to have a look and the image was all shrunken and stretched again. The image started pulsating then the mac shut off. A few minutes later it started up again on its own so I turned it off. Until yesterday my Mac had been working just fine. Any ideas about what this is or what to do about it? Thanks for the help.
Charlotte

The fact that it is starting up on its own either means that it is scheduled to, or that there is some problem with the power supply, which as far as I can tell, would cause the monitor to do that.

IMac screen is black when I turn it on

My iMac screen is black when I turn it on? Any ideas on what is wrong?

Hi,
I was working with my iMac, the screen was suddenly frozen, then I tried to restart it manually, after turing it on again,
It started beebing (alarm-like) and the screen is black. What do I do now?

Imac makes fan noise when it turns off or goes to sleep

Hello,
I bought a new iMac from bestbuy during the last week of april 2013.
Recently when I turn the iMac off or put it to sleep, it begins to make a loud fan noise at the back above the place where the power goes into the iMac. However, the moment I turn on the computer the sound goes away.
I left the iMac on for a few hours thinking the noise will go away on its own but it didnt. Now I always have to turn off the iMac and take the power out of the wall in order for it to not make noise.
Does anyone know what I can do to solve my problem? I have tried the SMC reset and the Pram reset however it does not seem to do the trick for me.

I would recommend resetting the SMC at least 3x back to back, sometimes it does not work the first time. If you don't know how please navigate to https://discussions.apple.com/docs/DOC-3603 for detailed instructions. If that does not help, you have 90 days of free AppleCare telephone coverage or if you already bought AppleCare (VERY STONGLY RECOMMENDED) this will extend your 1 year warranty to 3 years and includes 3 years of phone support. If you are in the USA you can buy it from B&H Photo for as little as $122 vs. at BBY or Apple for $169.

I have a mid-2010 iMac and just purchased a 2TB TC, can't join existing wireless network with AC standard so attached to iMac via ethernet with TC wifi turned off. How do i access TC now? not showing up in disk utility or on desktop. working fine with TM

I have a mid-2010 iMac and just purchased a 2TB TC, I just found out that it can't join existing wireless network with new AC standard so attached to iMac via ethernet with TC's wifi turned off. How do i access TC now? not showing up in disk utility or on desktop. It is working fine with TM. My cheeper seagate drives etc kept crashing, so i didnt trust cheeper back up options anymore. Connected those drives to TM via firewire and could see the drives and access them.
Also, I didn't want to bridge TC with my new fios router that I paid 100 dollars for, to get N speed and also paying 10 dollars more a month for fast speed. I heard that bridging slows down everything and then there can be port issues with mail etc. I connect to the internet via airport only and it is pretty fast. Getting over 50mbs downloads and over 30mbs uploads. Plus everything in my home it connected to my fios router, airport express for music streaming, two apple tvs, vuezone camer system. I really didn't want to monkey around too much with my system. But are there other options to connect the new TC. Can't find info anywhere for this and called apple who gave me the info above. after hanging up, i see that i cant access my TC and I am wondering if i would have to reset it to turn wifi on again to make changes to the drive, turn off blinking light or repair it in disk utility if it should become corrupted.
For other with similar issues i did solve some other problems: when i connected it to my ethernet port on my iMac wifi stopped working. Found that I had to turn off the ethernet in the system>network screen, but then TM didn't see the TC so i restarted after changes and then it saw it.
Now a rant. I can't believe in this wireless age that Apple would make a product that cant join a wireless net work. The apple rep said i could return it and look for the previous TC that would join an existing wireless network. Are we going backwards?
Thanks!
lennydas

Ok... it is getting a bit clearer but there are still some questions.
I connect to the internet via airport only and it is pretty fast.
I was assuming airport in this statement in your first post meant the TC or the Express.. but I now realise we are still in the mass confusion stage where apple calls everything wireless an airport. So what you mean is the airport internal card of the computer??
Also, I didn't want to bridge TC with my new fios router that I paid 100 dollars for, to get N speed and also paying 10 dollars more a month for fast speed. I heard that bridging slows down everything and then there can be port issues with mail etc.
I think this is mistaken.
Putting the TC in bridge mode plugged into your FIOS will not slow the network.. nor will it cause mail or port issues.. in bridge the TC is just a fancy WAP and switch plus the network hard drive.
If the computer is close it will be faster than the FIOS.
You can run both wireless networks with different names.. so it is clear which is which. But you can also setup roaming so the computers themselves pick which is the best wireless.
I tried extending the wireless net work and tried joining wireless network, but the TC kept crashing and I had to keep resetting the TC. the Apple support person said these, extend wireless network and joint wireless network, are no longer a connection option with the new TC because of the new AC protocol.
Thanks again!
You cannot extend to a non-apple wireless router.
You cannot use join a wireless network because when you do the ethernet ports will be cut off.
But that has not changed.. I don't think Apple support is correct.. there has been no change with the AC model.. it is simply a fact that apple routers do not work in join wireless mode other than as a dumb client. The same applies to AC as to the earlier version.. but I have asked another person to check this.
Join in the express is the only apple router that still allows an ethernet connection.
For now you best use of the TC is bridged to the FIOS. Wireless you can sort out between several options.

IMac late 2006 screen won't turn on

Hey everyone. I have a 24" Intel iMac that I bought in December of '06 and I'm trying to figure out if it can be fixed. I powered it up one day and the screen just won't turn on. I can hear the fans and drives, but no screen or startup chime. The white light on the front of it lights up and stays solid.
I asked some people I know and they seem to think it's the logic board. If that's the case then I'm probably just going to be stuck with a giant paperweight because it looks expensive to replace. Just looking to see if anyone has any input on it! Thanks!

Hi Joel, see if it will Safe BVoot, holding SHIFT key at bootup.
Also, once booted take a flashhlight at several angles close to the screen & see if you cant detect a faint Desktop.

My 27" iMac displays vertical green lines when turned on and then will not boot up

Can anyone tell me why my 27" iMac displays vertical green lines when it is turned on and then will not boot up?

Welcome to Apple Support Communities
The display or graphic card are damaged. The only thing you can do is to take your computer to an Apple Store or reseller to get your computer repaired.
If you use an external display with your Mac, connect it to your computer and see if these lines appear on the external display. If so, it's a graphic card problem

IMac shut down and will not turn on no matter what I try...help!

I am hoping that someone can help me. I have a 20", 2.0GHz Intel Core 2 Duo iMac that was purchased late 2007. A few days ago, it shut down on it's own during normal computer use and it won't turn back on since.
I have searched through the boards and most people recommend resetting the SMC, SMU and pulling out/placing back in the memory. I have tried all of those as well as using a brand new power cord but none have worked. I have also seen recommendations to reset the PRAM but since the computer has to be on to do that, unfortunately, I can't try it.
Has anyone else had this issue? Does anyone have any suggestions? Any help will be greatly appreciated!
Thank you in advance!

Hi and welcome.....
I have also seen recommendations to reset the PRAM but since the computer has to be on to do that
Not sure where you found that information but that is not the case. The Mac must be shut down in order to reset the PRAM. Follow the instructions here...
Resetting your Mac's PRAM and NVRAM
If resetting the PRAM didn't help, try here...
Resolve startup issues and perform disk maintenance with Disk Utility and fsck
Carolyn

HT4413 I migrating from my macbook to new imac. nothing showed up until I turned off the imac but everything I had done previously on the imac disappeared.

I was migrating from macbook to a new imac.
Nothing showed up until I turned off the imac.
When I restarted the imac everythign I'd previously done was gome and the migrated macbook desktop had taken over.
How do I bring back the original imac settings.
Thanks

You can't. When you migrate user accounts, those settings will be used. That's the point of migrating, not to have to reset things Peruse Pondini's Setup New Mac guide for details.
If you want to revert to the original user settings, create an new admin user account. That'll use the default user setup.

27" imac i7 16GB RAM mid-2010 turns off randomly

I've done a lot of reading on the existing posts, and so far no real solutions except for removing RAM. I have 27" imac with APPLE-INSTALLED 16GB RAM. It is a mid-2010 imac model 11,3.
The random shutdowns don't seem to correlate to particular apps or usage. They started a few weeks ago with shutdowns once in a week or so, and now are happening about 3 times a day.
What I've tried so far:
- installed istatpro temperature dashboard thing & smcFanControl. I've been monitoring HD and CPU temps and turning up the fans to keep CPU under 110 degrees F. Did not fix it.
- reset SMC; did not fix it.
- zapped PRAM; did not fix it.
I see from other threads that others are having the same problem. The next thing I am going to try is removing RAM. I'll report back in the next few days what I discover.

It's a new machine and still under warranty. Why are you bothering to play with it? Get straight onto Apple and take it back before you do something that voids your warranty.

Imac G5 17" widescreen computerwhe i turn

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