Mac Pro :: Refuses To Boot Normally After Installing New RAM?
Apr 8, 2008
I recently purchased a mac pro for my work! I just got my memory modules from OWC and i installed them. After installing them, my macpro refuses to boot normally. It keeps going to a black screen that tells me there is no boot disk available and please insert disk and press enter to boot. My bootable HDD is in the HDD bay. I held down the option key and it booted up by selecting the bootdisk. Problem is after i booted up, everything in my Mac OS is lagging. All the applications are lagging. As i am typing this thread, the words that i am typing are really lagging.
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Sep 13, 2009
I have OSX installed on a very old Powerbook. Well it was working and then I left it for awhile and now it is giving me the good old folder to question mark screen (maybe someone dropped it?). Well I'm not much of a mac user so I looked up all of the different boot key commands and tried to boot from my OSX CD. Holding down C did nothing, and neither did ANY of the other commands except holding down option and that key command that restarts the computer (apple, option, shift, esc?). Anyway, I got into the screen that shows your hard drive and all other devices and it actually listed the CD drive so I clicked it and clicked the next arrow. I waited for awhile and then the screen reloaded (as if it was rescanning for removable devices) and then stopped and only displayed the local disk. What is going on?! It only sometimes displays the CD in this screen and the next arrow never does anything regardless!!
I really don't know any of the computers stats but if I were to guess they're pretty bad. All I know is it used to run OSX just fine and then other people used it and now it doesn't do anything.
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Dec 7, 2014
itunes refuses to open after installing yosemite. downloaded and installed the latest version but nada
Info:
MacBook Pro, yosemite is the OS
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Aug 30, 2009
Brought snow Leopard from Apple, and got it yesterday. I installed it today, and whilst it seems faster I have a few problems. Mainly that it doesn't seem to boot into 64-bit mode, neither from an app changing it to boot into 64 bit or by pressing the 6 and 4 keys down.
Also, does anyone know why a plugin to make Quicklook have a list view for Folders won't work anymore?
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May 4, 2012
my Macbook Pro 17" early 2008 (modell 4,1) had it's motherboard changed a week ago (the video card issue). I am running Snow Leaopard 10.6.8.
I decided to install Windows 7 on this machine, preparing a partition via Bootcamp, and ran into the following issue: each time I try to boot the Mac from the Windows 7 install DVD (official one), I get a black screen with a blinking cursor.
Now, of course I searched the web, tried a lot of things, burned several DVDs in different ways, from the original DVD as well as from .iso files downloaded from MS, nothing helped.
After some time, I head the idea to try my DVDs on another Mac, an iMac to be exact, and they all work!
So, it looks as if it is my machine that causes the trouble... but its motherboard is new, so it should not be a hardware issue.
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May 9, 2008
Ok I connected my Air to a LG drive GSA-E50L USB DVD drive. It seems to work fine in Windows and OS X. For booting it does work with the OS X dvd's.
However, it refuses to boot from a Windows XP installation disk.
I've tried different boot disks aswell. No luck.
When I boot pressing the option key, the DVD drive is one of the options. It says "Windows CD". I then choose it. It starts reading the CD and then the apple sign is displayed. The apple sign changes into a stop sign and goes back to the apple sign again.
Does anyone know what is going on?
Has anyone been able to boot from a Windows disk with a non Apple USB drive?
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Dec 11, 2008
I just bought an iMac with a G4 processor from a friend... The only problem is that apparently some vital file was deleted and as a result, it will not start up. I have a Tiger recovery disc, but because I'm only being shown the gray apple screen and the loading circle, I can't actually use it. Any ideas?
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Nov 6, 2010
Yesterday, I had some issues with my MacBook Pro, the keyboard and trackpad were unresponsive (I tried a USB Keyboard/Mouse, didn't fix the problem), it took 10+ minutes to boot up, and it refused to wake from sleep. So I did some hunting, found out if I removed the FireWire kexts, then that would solve the issue. I removed the kexts, and rebooted it, and everything works perfectly fine, with one exception. Both FireWire ports are undetected and inoperable. Would a OS reinstall fix this, or is it some deeper issue that may require a logicboard/hardware component replacement?
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Jan 9, 2009
I have just finished moving my G4 Sawtooth from one house to another. I shut down my machine properly at the one house carefully moved everything over and re-attached the peripherals. Fired up the machine and was greeted promptly with the Apple boot screen and spinning thingy. Then it spun and spun and continued to spin some more. After about 10-15 minutes my desktop backgrounds appeared on the dual monitors, but then sat there like that and no finder ever appeared. After waiting about another 5 minutes, I shut off the machine by holding down the power button. I waited about 10 seconds and powered it on again. Same thing, but this time it just sits at the grey Apple boot screen with the thingy spinning forever. Then I noticed something unusual.
I could hear one, or both of the internal hard drives park the heads and spin down like it was going to sleep. I hadn't noticed that before, but presume it was doing it all along. Meanwhile the computer kept spinning away on the boot screen. I thought, great my drive has crashed and burned. So I removed it and attempted to mount it on my G5 using an external ATA-USB adapter. It mounted without a problem and I was able to see and copy all of the files. So then, I took a spare drive I had with a valid bootable OSX Leopard install and put it into the G4. Fired it up and lo and behold, the same problem. The drive spins up, the machine shows the apple boot screen and keeps spinning the thingy, then after a bit of time the drive parks the head and spins back down. I'm stumped and would like some assistance in resolving this problem. Any suggestions? Oh, and yes, I've tried reseating all cards and memory and disconnected all peripherals.
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Nov 9, 2010
1. I do occasional maintenance with onyx and have been getting a few startup disk errors in recent months. These seem to get repaired and the computer still functions as normal. I have never had these before in 8 years of using osx so they do worry me. Is the osx boot drive just a bit corrupted? Would a simple reinstall help or is the hd showing signs of failure?
2. The trash simply refuses to empty. The operation can�t be completed because you don�t have permission to access some of the items.
I've tried to bring the items back to the desktop and the folder they came from but they simply make a copy of them. I've tried the option key method and sudo rm -rf ~/.Trash + sudo rm -rf /Users/user_name/.Trash in the terminal but get no change
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Mar 2, 2012
I followed instructions from Apple and reformated a second boot drive with GUID partitions, loaded my Snow Leopard OS and updated to the last version. Downloaded Lion and installed, set this second HDD as the new boot drive and waited - one monitor came up but then nothing happened for so long I went away. This has happened three times now and while I'm not watching my MacPro Xenon 8 core reboots from the Snow Leopard drive..
Info:
Avid Media Composer 6, Mac OS X (10.6.8), MacPro 2.8 8 Core14Gb, 6Tb, AJA Io
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Jul 28, 2009
I just finished up a fresh install of Windows 7 and downloaded and installed the NVidia driver from their site directly since the one in the Boot Camp files is pretty old and technically the Vista driver anyway.
But I still need the Brightness, Sound, etc key functionality. Is there a way to selectively install Boot Camp drivers? That's the only one I need. The wireless, chipset, video and everything else works just fine (and in some cases better) than the ones included in Apple's setup.
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Dec 9, 2007
I just got an AirPort Extreme Card from Apple that has been refurbished. I installed it in my G5 and then on power-on, the system hangs before the chime even sounds? I remove it and everything is back to normal...
Information:
Power Mac G5 Dual 2GHz
Mac OS X (10.5.1)
MacBook 2.16, PowerMac G3 B&W, PowerMac 8100 AV, PowerBook 540c, Mac Plus
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Dec 25, 2008
This is the 1st time i got a Mac , i bought a black Macbook 2.4GHz some days ago .
I installed Windows Vista Ultimate using Boot Camp , and all went smoothly .
Only 1 prob is when restarting , i have to wait too long for the Windows to log on , i think about 1min with the black screen.
And if i want to boot in Mac OS , i have to push down the D button or the Alt, it takes quite a long time too .
So do you guys have any solution to this problem ? I want to get rid of the waiting time, way too much.
And do you know how to make my Macbook jump right in the choosing section when it starts ? ( so that i dont have to push down any button when it starts )
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Oct 2, 2010
I installed a new SSD from Crucial and I want to recover from my Time Capsule. How do you boot from the CD? I've done the press Option key and there I can choose the OSX install cd but then after I press it the screen changes to the apple logo and sits there. Do I need to wait for a long time or something? Did I press the wrong keys?
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Feb 19, 2009
I have a spare hdd I want to install Windows 7, can I just pop in the HDD and install windows 7 or will my macbook not allow that?
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May 16, 2010
I am having problems trying to install Windows 7 through Boot Camp. I have already deleted my old Win XP. I get to the step in Boot Camp when it asks me to enter the Win OS CD into the computer, than click continue or w/e, and it says no CD found. It's not a problem w/ my CD/DVD reader cause it appears on my comp that I have CD in. I have already updated my mac for all firmware and OS updates. I am using MacBook Pro 2009, BootCamp version 2.0, and Windows 7.
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Oct 24, 2007
I am going to purchase leopard and I was wondering the limits of the Xp installation. I bought a XP computer last year and it came with a recovery CD. Could I use the recovery cd to load XP or would I have to go out and buy a new version of Windows XP S2P. And one other question with running windows on a mac, would I still catch viruses using the windows OS or would the Mac side kick in and block them. Then if it doesnt then I would have to buy an anitvirus.
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Oct 10, 2010
have legit snow leopard dvd with boot camp 3.0
if i run the boot camp setup in win 7, it says my laptop doesn't support x64.
if i install the .msi it says i don't have the elevated privileges to do it.
if check the properties of the .msi the option to run the program as an administrator is grayed out
if i change the user account settings to eliminate the prompt to run as admin and then reboot, i still cannot open the damn installer because it says i need the priviliges.
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Dec 20, 2010
I'm a complete newbie to Macs. Bought my first Mac and wanted to upgrade the hard drive and complete a fresh install with my OSX DVD that came with my system. When I change the drive how to I get the OS on the drive? Do I boot to the DVD or the HD? How do I boot the drive I need?
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Aug 28, 2009
It just hangs at the spinning pinwheel. I shut the machine off and booted it into Verbose-mode (Command-V) and it stops at "Initializing Power Manager" or something very early on. I pulled the battery and unplugged the machine, am letting it cool off (not that there's a point) -- it's one of the original MacBooks that had that "shutoff" problem with the wire that'd melt and short to the heatsink but mine never had the issue because I wasn't using it very often at the time. Any ideas? The drive does show up when I hold down Option.
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Dec 13, 2009
I have been trying to install Windows XP Pro SP3 on my MacBook, and after the installation finishes, I get an error saying that hal.dll can't be found. Really strange. Windows 7 installs fine, but I'd like to install XP for nostalgia's sake.
The disc is clean and I get no errors during install.
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Jan 9, 2010
I'm a new MAC user and would need to install XP on my MAC. I'm sure there are thousands of threads out there about this but I couldn't find one. I've tried installing with Boot Camp and got Disk Error. Realised I had Service Pack One. The CPU then wouldn't boot properly as it looked for the WIN CD later so I have to hold down the Option key every time I boot up. I now have XP Pro with SP3 and have partitioned the space (20gb). Just don't want to mess it up so I'll wait for a reply here.
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Apr 3, 2010
I have just got a new 15" MBP (2009/2010) and installed XP with boot camp. I have done this before on my MacBook White and iMac and had no problems but this time it has been a real pain in the neck. When I put in the MBP install DVD after installing XP I found it had no Boot camp exe or drivers? I got around this by using the DVD that came with my MacBook White which had Boot Camp and 99% of the drivers that I needed. The only problem I am having now is with the isight,Bluetooth and WLAN drivers, Does anyone know where I can get them?
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Apr 28, 2010
with my Leopard installation i have a problem where it fails to boot up likely due to a previous unexpected power cut.
From googling the issue it seems like the only solution anyone has had to the same problem is to re-install.
However I've lost my Leopard system discs.
I booted into my Bootcamp Windows installation and installed the latest drivers from the Snow Leopard disc which i recently purchased (and came today)
This gave me the option to read files (and presumably copy) from the mac partition but no delete function.
I have two problems here:
1. I only have 2.61GB free on the mac partition, Snow Leopard requires at least 5GB. Since I can't boot into OS X and Windows can't write to the partition i can't delete any files.
2. My mac won't boot the Snow Leopard DVD for installation. I hold C while booting and it has no effect. It does however run the Hardware test if i hold D while booting.
I have an external drive i could probaly make enough room on to back up my entire osx partition for a totally clean re-install.
However this requires some sort of access to the drive/write capabilities. Maybe something like bootable linux?
And any idea why my disc won't boot? (even if i had enough space for a install...that would be a bit pointless if i can't get the disc to boot)
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Dec 9, 2014
I have a MacBook Pro using latest OS and had been having trouble with my wallpaper changing back to default settings. After reading this support thread: URL...., I followed the instructions to install the following file in this
directory: Library/Preferences/SystemConfiguration/ The file called autodiskmount.plist had the following content (all following the directions of the thread above): <?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" URL....
After trying to restart the laptop, it has now been stuck at the grey screen with the apple logo and the rotating circle. I have tried using disk utility and repairing the start up disk. Doing a safe reboot does not work.
Info:
MacBook Pro, Mac OS X (10.7.2)
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Jun 17, 2014
I just installed the Samsung EVO SDD in my Macbook Pro (mid-2009). I want to get into Startup Manager or Recovery Mode to restore my data. My main goal is to use my Time Capsule as my recovery disk.
So far I am getting a folder with a question mark everytime I boot into Recovery Mode (Cmd + R) and a white screen with the mouse cursor when I boot into Statup Manager (Option key). My last resort is to re-install my old HD and use a SATA cable.
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Nov 26, 2009
I tried to install snow leopard on my 3 mos. old macbook pro and received a failure message with the invalid node structure, rebuilding catalog B-tree message.
Not sure what to do, I tried booting up from the leopard install disk and it took about 15 minutes to boot up and everything is wonky, doesn't work right.
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Aug 26, 2010
I bought 2x4GB modules of RAM from OWC for my 2009 27" i7 iMac. Following the video on OWC for replacing the memory, I opened the RAM tray / area at the bottom of it, and there were two RAM modules in it, one on each side (2x2GB), I moved the 2GB module on the left over to the right side, and inserted 2 4GB modules into the left tray, reattached the metal panel / strip and booted up and it beeps :/
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Nov 5, 2010
I know with Boot Camp, you need to create a partition and install Windows on it. Is the same true with Fusion? Or during the install process, Fusion will create the space needed?
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