IMac :: Pros And Cons Of Booting In 64-bit Mode?
Jan 7, 2010
I didn't realize that SL automatically boots in 32 bit, even on the new iMacs. I have a core i5 with 8 gigs of RAM. Assuming I boot in 64 bit mode today, will my computer now utilize all 8 gigs? Was it only using 4 gigs in 32 bit mode? Also, will some applications not run if I boot 64 bit?
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Aug 25, 2010
So I've set up my new mac pro per [URL] recommendations and have a SS boot drive and all my data on a separate Master drive (raid(0) stripe). Lloyd Chambers recommends keeping your home folder on the boot drive as it has a lot of extraneous app files stored in the library. This just means you don't store any data files in your home folder, you put them all on your data disk (with some exception to desktop files- see below) On the other hand, Chris Parillo at [URL:...] suggests just moving your entire home folder. This seems more convenient from a user perspective but does cause some mixing of app files and data files that could cause problems down the road. Such problems include, if for some reason, your system misses the home folder, it will create a new one and all your preferences will be suddenly changed. With this is mind, I've decided to keep my home folder on the boot drive, but it is now annoying to have my desktop files on my boot drive. Again, this is bad mixing of Data and App files and it makes it so if I want to move a file over to the Data file, I have to remember to command click so it doesn't just copy it over and leave two files, one on the desktop and a new copy on the data file. I can't just drag and drop, because it is just copying the file to a separate disk. So if I forget to command click, I have to manually trash the desktop files.
So now if I only had a solution to move my desktop folder location. Anyone have some ideas? I've tried the options in this thread: [URL:...] but they haven't seemed to work. I used a similar terminal trick to move my mail folder off my home folder, why can't I do the same with the desktop folder? Any suggestions or other pros and cons to moving the entire home folder over?
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Oct 27, 2009
Which would be the best option? Bootcamp or VMware Fusion 3.0? and does bootcamp slow down the mac side of the OS ( such as boot up times etc ) What are the pros and cons to both?
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Apr 16, 2010
I lean to the standard drive at 5400 rpm. Why? All my video editing is done with an external firewire drive, and I think the 7200 generates more heat than the 5400.
For web design I don't see how a 7200 speed is much of a benefit, considering the extra heat generated may negate the benefit of a faster drive. I think heat (and dust) is the bane of all electronics.
I'm fixing to order the 15" i7 and will use it for running Adobe CS5 web suite. Final Cut Pro for video- and will use a firewire drive.
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May 13, 2012
I've been debating switching to Lion, but I'm not really sure if it's worth it. I have Snow Leopard on my Macbook now and I have a general idea of what the upgrade includes, but I'm not positive. The one major reason I want to switch is to simplify syncing with iCloud.
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Sep 3, 2014
My iMac24" can't booting in normal mode, but booing in safe mode only.
how to boot up in normal mode. If I restart the system, it is showing the apple logo and not going to Finder.
Info:
iMac, maverics
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Sep 8, 2014
My iMac will not boot normally only in safe mode and then all programes keep flashing.Safari and mail continuously flashing grey lines..Reset the PRAM and it worked but turned the computer off and on again and its gone back to same problem...It's an iMac 27" late 2013 3.2 ghz
Info:
iMac (27-inch, Late 2013), OS X Mavericks (10.9.4)
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Jun 2, 2014
Troubleshooting a broken display on a 13MBP with OSX Lion. Target is 2011 27' iMac running Mavericks.
Info:
iMac (27-inch Mid 2011), OS X Mavericks (10.9.3), Office for Mac
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Nov 7, 2010
I am on 10.6.4. I have learned that I can boot up in 32-bit mode by holding down the 3 and 2 keys while starting up. Is reverting back to 64-bit mode as easy as holding down the 6 and 4 key? If not, then what?
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Jun 22, 2010
I was getting a error code 36 on my mac so I decided to try to boot up in safe mode now my macbook pro will not stop trying to boot to safe mode. I am on snow leopard.
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Feb 25, 2010
I cant get it to work, I still have to hold down "6" and "4" to boot into 64 bit mode. I edited and verified the changes in my com.apple.boot as described here but it still boots into 32 bit mode.
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Jul 12, 2008
I'm just curious if it's possible to put my Mac Pro into TDM, connect it to my MacBook Pro, start it up holding option to choose a start-up disk, and use the Mac Pro's HD to boot up. I'd experiment myself, but the Mac Pro is packed at the moment, and I'd like to know if anyone knows for sure that it will or will not work before digging it out.
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Nov 5, 2010
Major issues here please I can use all the help I can get. My MacBook Pro 13" Unibody Aluminum is booting in safe mode everytime. I restate. Someone has advised my shift key could be stuck? How the he'll could that have happened? It's only a few months old, I just upgraded hard drie. My trackpad was running funky before that. My keyboard was acting wired, only symbols showed up.
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Aug 6, 2009
My MBP (about 2 years old, Santa Rosa) is having some major issues both starting up and going into sleep. First off, I'm using 10.5.8, everything's updated, I don't have a bunch of stuff on the startup processes (quicksilver and iTunes helper) and I'm plugged into a power source. When I start my computer (since yesterday) it has been taking an abnormally long time at the grey screen before the Apple, the grey screen with the apple and the rotating wheel, and then it goes to a light blue screen for 5 or so minutes (repeat: minutes) until flashing light and dark blue and finally taking me to the login. Not only that, but my computer will not go to sleep when I close the lid. Instead, the screen turns off and the hard drive and fans keep chugging. What's more annoying is when I then try to open the lid to manually turn it to sleep, the screen won't turn on. This usually requires a hard reset, which then takes 10 minutes to start up.
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Jun 21, 2010
I have an older but babied 2008ish Macbook Pro. Today upgraded my 3GS to os 4 with no problem. I downloaded a couple things but didn't go crazy today. I left work and shut lid. When I got home it was stuck on the screen saver password for a long time. I turned off the unit and now it just boots to a white screen. I can boot via OSX disc but it also doesn't see HD. This is a 500gb Seagate drive and I'm screwed if it's dead. Any suggestions to at least get to my bootcamp partition?
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Jul 24, 2010
At one point I had my external monitor set up to work with windows, so I know how, but since then I have reinstalled windows. I haven't used windows in a long time, so didn't bother setting it back up. Recently, my macbook's screen broke, I can boot into OS X fine by plugging in an external keyboard or mouse, or simply by closing the lid quickly before the primary display loads, thus booting it into clamshell mode using only an external display. I cannot however do this with windows, and since my screen is broken I cannot set the display properties as I cannot see them. Is there any way to either boot windows into clamshell mode or set the display properties using keyboard shortcuts?
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Apr 17, 2012
a bit complicated. I have a 3 year old iMac, Snow Leopard 10.5.2 on the dics, but I updated it so..a pretty receent version of Snow Leopard. I had had kernel panics before- it turned out to be a bad RAM chip, replaced it and it fixed the problem.
This time, I was hoping it was the same. I got a new RAM chip, swapped them out and ID'ed the bad one. Reseated the RAM. Probelm is, when I was trying to fix the problem, I had booted in Safe Mode. Now the iMac starts up normally- the chime, the Apple- AND the Safe Mode bar.
Which progresses for about 5 seconds before another Kernel panic descends. This happens whether the keyboard is connected or not. At this point the Safe Mode at startup bugs me more than the kernel panics! Sigh.
I wonder if there's any key combo on startup I could try to at least get out of Safe Mode before Kernel panic sets in. When my laptop has a kernel panic i can usually repair with Disk repair on CD. I realize this sounds hopeless! And i need it repaired, but money is an issue.
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Jun 2, 2014
My mac was being very, very slow so I turned it off, then as it it was booting it was taking ages so i restared in safe mode. While booting in safe mode the black bar at the bottom goes around 2/5 of the way across and then my macbook just switches off.Ive tried:fsckdisk utility repair/verifyreinstalling OS X Lion
When i tried to repair, it said i needed to erase everything and reinstall the OS. Last night when i tried to it said both drives are locked so i couldnt. And now when i just tried again, neither drivers are appearing; the box is just blank.
Let alone my livelyhood on the laptop, i have thousands and thousands pictures which if lost, would genuinley heartbreak me. I have much valuable data on my laptop and i really dont want to erase all data, because me being the gigantic fool that i am, i only have one time machine back up from about a year and a half ago.
Info:
MacBook Pro
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Jun 29, 2014
My 2.3 GHz i5 13" MacBook Pro Early 2011 goes to sleep whenever I boot it in clamshell mode with an external display, mouse and keyboard attached (it sleeps right after the boot sequence). Is there any way to prevent this, as it is very annoying when restarting.
Running OS X 10.9.3
When booting from an external firewire drive, on which I have OS X 10.9.3 installed, my Mac completes the boot sequence without going to sleep. I have run the OS X installer over my current installation, (without wiping), and the computer still goes to sleep once the boot sequence has completed.
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Jun 29, 2009
I recently purchased a sort of beat up 1.5GHz 12" PowerBook G4, top of the line, and it arrived today. It boots up normally when the apple appears, then it shows the blue screen and then the mouse turns into a spinning wheel. Also, when I move the cursor, a second cursor from the same spot stays in the top-left corner. The PowerBook will only work normally as a headless server (powers on, lid closed), unless booted in safe mode. Another issue is the screen. The seller said there were lines going up and down the screen, but it varies depending on what is displayed on the screen. If the screen is grey or in target-disk mode, they do not appear, but on the 10.5 standard desktop pic, it changes pattern. The lines can be seen here: [URL]
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Aug 6, 2009
I am thinking about purchasing one of the early releases of the MBP 15", before they replaced the expresscard slot with the SD Card slot. As a filmmaker, the expresscard slot allows on-site ingestion of Sony's and Panasonic's SxS and P2 cards - a nice utility. I also don't use point-and-shoots, so the SD card has zero utility for me.I just wanted to make sure that, before I buy the previous revision, there is nothing I will be missing by purchasing the older edition. I remember that they widened the color gamut on the MBPs by 30% with the update, but this is really insignificant as their color accuracy isn't thaaaat great anyway.
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Sep 19, 2009
We have 3 iMacs, a Mac Mini and an AppleTV in our household. All are 2007 or newer. The hard drives have failed in each of the iMacs (Seagate Drives) and I suspect it is heat related. I have also had a hard drive failure this year with a Fantom MDU1000 1TB enclosure that uses 2 WD Caviar Green 500GB drives in a raid0 config (One of the WD drive's spindle motor buzzes and does not spin).
I am leery of Seagate and WD Caviar Green and have been researching the Samsung SpinPoint 5400 RPM "EcoGreen F2" series. I don't care about the slower access speed, but I do care about the fact that 5200 RPM drives run cool.
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Dec 2, 2009
Had a quick question. I'm on my third 27" stock 3.06Ghz imac that was replaced yesterday. The good news is that so far it doesn't seem to have any of the problems of my previous two 27" imac's. There is one thing though. A couple of seconds after pressing the power button to bootup there is a brief mechanical sound from the dvd drive like a quick ejecting sound even though there is no cd in the drive. My first 27" imac dvd drive made the sound but the second imac 27" Imac I had didn't. Is this sound normal? Would be curious to know why two out of the three 27" Imac's I had make that noise.
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May 2, 2010
I was just wondering: Do 17" MacBook Pros run cooler than 15" MacBook Pros, if they're both spec'd the same way, and running the same tasks? I would think so. Does anybody know? Has anyone tested this?
It's not pressing; I'm just curious.
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Apr 23, 2012
I have a IMAC g5 PPC based machine.It was working fine before several days.Leopard 10.5.8 is intalled on it.Currently i am not able to boot OS.Whenever I power on the machine is stops at brown screen(with apple logo). I have tried to start in safe mode as well as single user mode. I am able to start it in single user mode but after 1-2 mins automattically it shows an error like this. "ioatacontroller device blocking bus" And after that system got stuck. I dont have any OS bootable disk. From where can I download the source of OS which I can install on IMAC g5 PPC based machine.
Info:
MAC os X, Mac OSX (10.5.7)
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Aug 13, 2010
I have the choice of two Mac Pro�s in my office and was wondering if anyone had any insight into which would better for video work (Final Cut, After Effects, etc.) and Photoshop?
Mac Pro #1
Quad Core Xeon
2.8 ghz
2 Processors
8 Cores
4gb RAM
ATI Radeon HD 2600 XT
Mac Pro #2
Dual Core Xeon
3 ghz
2 Processors
4 Cores
4gb RAM
ATI Radeon X1900 XT
From what I can gather from doing some research, it appears the processor is better on option #1, but the video card is better on option #2. So you think the processor over rules the better video card? Would it be worth taking machine #1 (with 8 cores) and purchasing this improved video card(http://store.apple.com/us/product/MB...s=topSellers)?
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Dec 24, 2009
Have a G5 iMac (non Intel) that was running OS 10.4.11 that now won't boot. I get the chime and the Apple then blue screen where it hangs. It won't even boot from an install CD/DVD (same routine) to blue screen. I had wanted to do an archive and reinstall but couldn't get the disk to boot. I have been able to Safe Boot and view files. In Safe Boot, I've verified the hard drive (no problems detected) and Repaired Privileges, but still won't boot (blue Screen). I've tried an install disk with same result (no boot and blue screen).
I've hooked the G5 to another G5 iMac, booted the bad G5 in Target Mode. The hard drive appears on the second G5s desktop. Using CCC have cloned the hard drive to an external hard drive (now have a backup of I don't know what. During the cloning, Norton AntiVirus detected and Quarantined a virus. I've run DiskUtility from the second iMac and again found no problems with the hard drive or permissions. Should I erase the bad hard drive, reinstall system software (using an interim user). The try to migrate all the old applications and files from the clone? If not what should I do next?
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Mar 14, 2009
I just bought a new iMac (2.93) today and every time I turn it on it makes a weird zzzZZ noise. Same thing happens when I wake the computer up from sleep mode. It sounds like its coming from the disc drive area. IDK if this is normal or what to do to fix it
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Aug 4, 2009
a neighboor in my buiding has found in the streets an imac indigo that isn't functionning and asked me to help him. Being skillfull on pc, despite I own an apple II, eons ago, I don't know anything about mac computers nowadays.
Searching the web, I found this might be an imac G3 with cd tray loading. When powered on, a folder with a question mark shows off.. I read that this might indicate a disk failure.
I tried powering it on with the C key down, it showed me a screen with 2 buttons: an cycling like arrow and an arrow to the right. Inserting the disk1 of panther gives me a icon in the middle of the 2 previous one with a mac osx Disc1 label. Clicking on the arrow to the right, the watch pointer revolves a bit and nothing more.
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Apr 3, 2010
I have seen discussion about booting up in 64 bit configuration. I have read that you hold down the 6 and 4 keys during boot up. Didn't work for me with my I7. How does one really check on this? My understanding Snow Leopard is 32 bit on boot up by default.
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