IMac G5 Would Not Start When New RAM Installed / But Fan Runs
Mar 21, 2012
I recently upgraded the RAM on my iMac PowerPC, but after installing the new modules, nothing would come up when I boot it. It gives me 2 (or three) of the "dial tone" beeps, the light flashes on and off and the only thing running would be the fan, running at an ultra high speed.I did install the correct modules, which are 2 x 1gb 184 pin DDR PC3200 400mhz ones, but I realize that they are high density ones. Dumb question here, but would that be the problem?
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Feb 16, 2012
I've owned this iMac for less then 20 hours Â
Mac OSX 10.7.3
21.5"
2.5 GHz Intel Core i5Â Â Â Â
4 GB 1333 MHz DDR3 ram
"Mid 2011"Â
It was purchased brand new. I used it for one hour yesterday, run the set up, install updates. thats all I have done with it. Today I awake to it presenting a loading bar of some sort under the Apple logo and Spinning wheel. I researched the bar, and found that it was a progress bar for a disk check, and since it doesnt complete (I let it do its thing) something must be wrong, However when i run disk utility, it can find now error in the disk. but my sound and video play pack does not work unless i restart the machine. this seems like an unessecary process. what are the possible causes?
Info:
iMac, Mac OS X (10.7.3)
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Nov 10, 2010
I have a PowerPC Imac. I have OS 10.4.11 installed on it. Today I started it up and it was working fine, however it froze while trying to load Photoshop. I had to force shut down and when I tried to reboot, I got a flashing folder and question mark. I have tried running Disk Utility, but it gets stuck at the Gathering Disk Information stage. I have tried resetting the PRAM (I think that's what it's called). It won't let me start up in safe mode or single-use mode. When I try to specify a startup disk, my hard drive is not listed.
What do I do? Is there any way to salvage this? My biggest concern are my pictures of my family that I unfortunately have not backed up.
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Sep 24, 2009
I got the Agua version and I'm on the newest version of Snow Leopard. I would post a screen shot if I knew how to. But when I open OpenOffice in Applications you get the start screen where you usually get to choose between the different programs. First of all on the text "Welcome to openoffice", the bottom half of "Welcome to" is missing. And then all the icons below are kind of stacked onto each other so you can only access some of them and its impossible to see what the icons does, cause the text for them also run into each other.
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Jun 7, 2012
Our iMac is 18 months old and three times in the last few months the fan has switched on at full speed as soon as I press the power button. If I disconnect the computer from the power source and turn it upside down before reconnecting and starting it up, the fan will then work normally. Has anyone else had this problem? I guess the answer is to take it to a service centre, but I thought I would see if there is a simple resolution to the problem first.Â
Info:
iMac, Mac OS X (10.7.4)
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Nov 30, 2009
I installed on my mac using bootcamp (I use parallels), so, After a few attempts as my s/n was entered incorrectly... I finally got xp working. However when running the mac, XP loads up automatically. I can not seem to get the mac to start up. I done everything by the book, why is this happening? how do I fix? I can now access the MAC, I have removed the windows section... however it still tries to start up windows...
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Jun 28, 2007
Just got an Intel iMac, with 1.5g ram (one 1g and a 512mb). I've been running CS2, and have been very disappointed. Previously, I was using a G4. I was expecting the program to run faster, even under Rosetta, but not only has it been slower, InDesign is acting buggy, with crashes, and corrupting files.
I'm going to get a second 1G stick of ram to see if it's a matched ram issue, but I'm interested if anyone else has had this problem.
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Apr 13, 2009
i just bought the following:
Custom configuration
| Show Hide
3.06GHZ INTEL CORE 2 DUO
4GB 1066MHZ DDR3 SDRAM-2X2GB
NVIDIA GEFORCE GT 130 512MB
1.0TB SERIAL ATA DRIVE
APPLE WIRELESS MIGHTY MOUSE
WL KYBD & USER'S GUIDE
COUNTRY KIT,IMAC 24
Now i am wondering which one runs better on Parallel Win XP or Vista? Can i run both of them without any problems?
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Jan 17, 2010
I have been battling with fan speed on my iMac recently.
I installed iStat which shows normal temps, but the fan revs up to 4000rpm - for seemingly no reason at all. Sometimes its quiet for long periods. It sometimes helps for a while if I put the machine into Sleep mode, but then I hear the fan start to rev up again when I resume activity.
I have spent hours with tech support, who then upgraded me to a higher level of tech support. But still the problem continues.
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Mar 13, 2012
Since I installed Lion all my programs open at start-up. Why?
Info:
13" MacBookPro, Mac OS X (10.6.5)
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May 31, 2012
Ive recently had to re-install Tiger after being told that there was an error in the startup volume. I am far from computer savy so I just basically follow instructions  Sadly, after doing so Ive been experiencing problems with my iPod nano & iTunes. I can sync but the songs put onto my iPod look gray instead of black. And, when I disconnect my iPod says there arent any songs on it. When I look at Music in Finder I noticed that I get a few items listed more than once. I was wondering if this could be the reason for my iPod issues.This is what Im looking at: (all the ones that are bold & underlined have the folder icon next to them)
[code]...
Info:
PowerBook, Mac OS X (10.4.11)
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Apr 28, 2009
i installed transmission but the torrents never start downloading ?!?! they just stay there on 0%!?
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May 25, 2012
If I have OS 10.6 installed on an external drive, can I start up from the external drive if I have 10.7 installed on my macbook pro?
Info:
MacBook Pro, Mac OS X (10.6.2)
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Aug 27, 2014
My iMac runs perfectly fine; more or less as it did when it was new. In OS X, when I shut down the computer, the fan runs at full speed indefinitely, unless I unplug it or boot back up. When running, the fan is perfectly normal (increases speed a bit when doing something taxing). I've never heard it at full speed before until this started happening. After following the SMC reset procedure with no luck (I'd like to add that the SMC reset only says it relates to fan problems when the computer is ON), I searched a bit and noticed there are one or two cases where a problem like mine was believed to be a motherboard issue, and therefore a costly fix.Â
However, here's the fun part. When booted into Windows 8.1, shutting down the iMac does not cause this issue to occur. It stays silent, as it should, even if I disconnect then reconnect the power. This leads me to believe it's unlikely to be a motherboard issue. However I've wiped, restored, and reinstalled fresh copies of Mountain Lion, Mavericks, and Windows 8.1, and the result is still the same: if I don't want to have to unplug it from the wall, then I have to use Windows to shut it down.Â
So then, my questions are these:
-What is the difference between shutting down from OS X and shutting down from Windows?
-Is an operating system allowed/able to touch BIOS settings?
-Is it possible to still be a hardware problem, given this difference?Â
My default OS is OS X, and it makes no difference if I change that to Windows. I also did a PRAM reset, even though that has nothing to do with fans...
Info:
iMac, OS X Mavericks (10.9.4)
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Jul 31, 2009
I purchased a Refurb 17" iMac 1.83Ghz Core 2. It would have been the Education Model for what I gather. No Bluetooth, Combo Drive, no 802.11n wifi, and Intel GMA950 graphics. Apple Specs state max RAM = 2Gb (2x1Gb). Has anyone been successful with trying 4Gb (2x2Gb)? I ask because we also have a Black MacBook (MA701LL/A) and Apple Specs state max RAM is also 2Gb, and we have had 4Gb in it, and runs beautifully!
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Jun 21, 2012
computer won't start. tried unplugging and holding in start button. After about a half hour and unplugging a few times, finally got it going. Imac G5
Info:
iMac, MacOS X (10.5)
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Sep 9, 2009
I've just bought a new MacBook Pro, it came last week (or perhaps the week before) with 10.5.7 and I immediately bought the upgrade to 10.6. It seemed a little buggy, but nothing I could put my finger on, but this morning I couldn't start - just the apple and spinning wheel. The only thing I've done since my last restart is install software for mobile broadband usb.
I can't reinstall my system software because it's "old" (ie 10.5.7 and I've installed 10.6).
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Nov 16, 2008
I have a G5 iMac - 2.1 ghz, 20", 250gb hd and 3gb ram, but it has been having problems starting up and it is also going to sleep midway through a task or at random times totally unprompted.
It now almost never starts up first time (I keep the iMac mains power lead always connected and the mains electricity supply turned on at all times now)- sometimes I will get the 'Start-up Chime' and then the cooling fans start spinning very loudly and then after a few seconds the iMac stops the start-up routine, but often when I try to start-up I don't even get the 'Start-up Chime' and I have to leave it for some time before trying again.
I can also now only get the iMac to run as a Firewire Target Disc by starting up with the T key held down and then using an old G4 (400mhz) Powerbook Titanium as the screen/keyboard by using the iMac HD as the startup disc for the Powerbook but this is obviously just a temporary work around.
I have also tried backing up all my data, and reinstalling the Mac OS X onto the iMac but the iMac still will not start-up normal and I still have to use it just as a Firewire HD.
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Jun 11, 2009
I have an Intel IMAC, which is now out of warranty as I have had it for 16 months (and I was dumb enough not to get AppleCare). A few days back, my computer would not startup and everytime I hit the power button, I would hear some spinning noise but no chime from the iMAC. Yesterday, I tried it again and this time I heard the chime but the monitor did not start. I was then able to SSH into the MAC and see that it is indeed connected to the network and booted up, but the screen is still dead. Any ideas what I should do before the painful trip to the apple store ?
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May 23, 2010
Are you able to update one computer (iMac) and send to either another imac or laptop? E.g. Installed update 10.6.3 on my iMac, and I able to use that same update on my MBP without having to download it again? Like using the update file I downloaded and installed on my mac and sending (via say bluetooth) to laptop and installing?
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Aug 7, 2010
I don't really have any use for it besides a few games I have. Can anyone else give me a reason to remove the partition?
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Jan 4, 2010
Yes I plugged in the block heater.....
Tried to reset the SMC (apple's only advice)
Tried to kick it into boot menu... no luck
managed to boot to Leopard install disk. backed into Disk Utility.... Verify System Disk produces: "Invalid B-tree node size...Disk Verify / Repair fail".
too bad too sad... no more information.
I don't know enough to know whether this is a SW failure or a drive failure, and my searches has led me here.
Also, my very first post in a forum, I read the rules and I hope I have found the right forum for this query.
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Jan 14, 2009
The current iMac will run well with snow leopard?
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May 13, 2009
i just got a imac with 4gb of ram and installed windows via bootcamp.This qn probably got asked a million times and i did search the forums for solutions but i couldn't understand them.Then thing is, my windows, 32-bit, home SP2 only sees 2gb of ram. I've heard of the 3gb switch thing i would like to try it if u could giv me some instructions since i couldn't understand what the guide was saying.I hav no intention of changing to vista btw.FYI, i like to game on my mac playing games like dawn of war 2, assassin's creed and photoshop cs4. I was wondering if som1 could tell me if the 3gb switch would help my com, however prove or not proven at all.
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Oct 3, 2009
How do you get this to work I tried running from os x disk but does not support x64?
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Dec 8, 2014
Ordered new RAM for my Mid-2007 iMac 24" 2.8 from Newegg.Crucial (2x2GB Crucial 200 Pin SODIMM 256MX64 DDR2PC2- 5300 Dual DIE CT2KIT 25664A C667)Â
I installed them both in their own slots, made sure that they clicked in.when I connect all the cables in and turn it on I get no boot sound.I decided to take one of the new ram out and installed an old one it boots up. It reads that it has 3gbs of ram.
Info:
iMac
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Sep 15, 2010
My new i5 was working for about a week now my AirPort status says No AirPort Card Installed and I am unable to connect.
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Apr 7, 2010
I'm going to ask a silly question now but can i install mac os on a hp laptop with a duo core processor. I'm sick to death of windows vista on it taking nearly 4 mins to load
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Jul 26, 2010
Just got an iMac. Trying to watch videos on hulu and other network sites but keep getting "the video you have requested is either unavailable or is being blocked by an ad blocker installed in your browser." How do I stop the blocking?
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Mar 14, 2010
We had a pretty bad storm here last night and we had lost power. At the time my imac was on and obviously turned off when we lost power. A few moments after we lost power we regained power, but now my imac won't start. Any ideas of what have my happened and what I can do it try to fix it>
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