Mac Pro - Yosemite - iMessage won't connect

My mac pro is updated to Yosemite and everything is working but iMessage.
Facetime, mail, everything is fully functional and I'm getting an error message saying
"Could not sign in to iMessage.
An error occurred during activations. Try again"
Here's the specs to my machine. I know it's a little dated but it has a lot of RAM and works very well still.
Anyone else having this issue?
<Image Edited by Host>

Hi Adam,
I have a similar problem. I updated to Yosemite on my early 2009 Mac Pro. Everything is working great and I can log with my Apple ID for iTunes, Mail, Facetime, etc. Everything EXCEPT for Messages. I get the message:
Could not sign in to iMessage.
Could not sign in. Please check your network connection and try again.
I have gone through the troubleshooting guide linked to my Linc Davis above and that did not help. I even deleted Messages using App Zapper and reinstalled Yosemite but the problem persists. To reiterate, ALL of my other applications that use my Apple ID work except for Messages.
Maybe when iOS 8.1 is released on Monday it may resolve this problem?

Similar Messages

You can't use The following message is stopping me access my disk utility. 'this version of the application "Disk Utility" with this version of OS X.' not only that my Mac pro keeps dropping my internet connection and logs on to BT Open.

After installing Yosmite, The following message is stopping me accessing my disk utility. 'You can't use this version of the application “Disk Utility” with this version of OS X.' you have “Disk Utility” 12.1.1.
not only that my Mac pro keeps dropping my internet connection and logs on to BT Open.
Help

For whatever reason you don't have the Yosemite version of Disk Utility which is 13. I suggest you reinstall Yosemite.
Reinstalling OS X Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Download and install the 10.10.1 update.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Check that you have the current version of Disk Utility.

After updating to mountain lion on my mac pro I am unable to connect my g-raid

After updating to mountain lion on my mac pro I am unable to connect my g-raid 1T external hard drive using the firewire connection? I have 4 places to plug the firewire into, none work. All ports used to work with Snow leopard?

Try this:
Boot into Safe Mode then restart normally.
Repair the Hard Drive and Permissions - Lion/Mountain Lion
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.
If this does not work to fix the problem, then:
Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

Using Mac Pro in Target Disk Mode Connected to MacBook Pro

Hi all,
I am trying to set up two macs to run off of the same monitors/keyboard/mouse/etc. I know about KVMs, but they are too expensive for my current setup.
I want to know if it's possible to run a 2006 Mac Pro in target disk mode connected to a brand new MacBook Pro 13" via a firewire to thunderbolt converter.
I would need to access the files, but also run the applications from the Mac Pro on the MacBook Pro.
Would such a setup work? Would I have to reboot each time I wanted to switch machines? Would there be a significant lag in the Mac Pro's performance?
Any tips or links to articles/etc. would be appreciated.
Thanks,
Nick

Hi Niel,
Thanks for the speedy response.
I should have clarified that I know that I can access the drive like a firewire drive. I'm more curious as to whether I can either:
1. use it's applications in target disk mode (based on your answer -- No, unless all the necessary system components are identical between the two computers).
2. Boot from the Target Disk computer as if it were a separate drive of my main computer. If so, since this is Firewire and not SATA, will I notice a severe loss of processing power?
Nick

The sound on my mac pro desk top won't move its stuck on one level

the sound on my mac pro desk top won't move its stuck on one level

zap pram
if that does not, try the SMC route

My mac pro suddenly stops working (2011), connection to the monitor stops, but de tiny light on computer still on and all sound stops. what's the problem?

my mac pro suddenly stops working (2011), connection to the monitor stops, but de tiny light on computer still on and all sound stops. what's the problem?

When the display turns off, it is not clear whether the computer has halted, or whether the display subsystem has failed.
Those tests determine whether:
a) Your Mac software had stopped working OR
b) Only the display had stopped working
If the pressing the Caps lock light on the keyboard lights the Caps Lock light on the keyboard, some software is still running -- your Mac has not halted.
If pressing Control-Eject on the keyboard, followed by the Return key shuts down your Mac, the software was still running.
¿Software was still running?
--Yes, the problem is ONLY in the display subsystem
--No, this is a computer-wide problem such as a kernel panic

Re: 2010 Mac Pro + Yosemite + Radeon 7950

Just been told by Apple Technical Guy (19 December 14) that my ATi Radeon HD 5770 graphics card (bought from Apple!) is no longer supported in Yosemite!! I can try replacing with an ATi HD 2600XT, return to Mavericks or put up with the inconvenience that my primary screen seems to be the VGA source and each time I log in I get another Desktop Space! The odd thing is that the HD 2600XT seems to be an older graphics card than my HD 5770? Not sure what;'s going on? See details of problem here: https://discussions.apple.com/thread/6618898
Mac Pro (Early 2008), Radeon HD 5770, Yosemite

Hi Hattter!
Definitely nothing wrong with the card as I still have a Mavericks Partition on my system where everything works fine. Something has happened following the upgrade to Yosemite. This is how I described the problems to the Apple Tech Guy when I set up a new Yosemite partition ("Yosemite Test") WITHOUT transferring any of my own data files i.e. it's not a software conflict problem:
I still seem to have the same set of problems:
(1) Progress Bar starts on the main screen (DELL 2407WFP), screen goes blank, the Progress Bar completes on the small screen (Panasonic 19” LCD TV) which then asks for the logon credentials;
(2) First time boot from "Yosemite Test", the small screen defaulted to SVGA 800x600 rather than WXGA 1280x768 under Mavericks;
(3) First time boot from "Yosemite Test”, I noticed that in "Preferences / Display / Arrangement" the white "menu bar" was above the small screen ie the small screen seems to have defaulted as the principle screen during Yosemite set up even though the small screen connects to my Mac Pro via the VGA connection on the ATi Radeon HD 5770 GPU and the main screen via the DVi port;
(4) As before 1280x768 isn’t a listed resolution in "Preferences / Display / Scaled" unless I press "alt / Detect Displays / Scaled" when 1280x768 appears and can be set (and stays set through a Restart). NB: the TV screen (rather than the Mac Pro) only reports the correct resolution when I select 60Hz;
(5) As before I’m collecting new desktops each time I Restart - the new desktops showing up in Mission Control above the main screen;
(6) Whilst waiting to logon, the wallpaper shadow behind both main screen and small screen are the same although once logged-on the wallpapers may change - the the wallpaper on the main screen becoming the wallpaper on the small screen, the previous small screen wallpaper becomes an additional desktop in Mission Control at the top of the main screen. Finally the Yosemite default wallpaper (mountain) seems to appear at random on the main screen????
(7) As before, logging out (rather than Restart) and the logon credentials are back on the main screen.
I’m assuming this points to a problem with the Graphics Card Driver rather than a software conflict. Let me know if you need any more information.
There seems to be numerous reports of graphic problems with Yosemite some of which involve the HD 5770 card. From your comments, are you suggesting that there is no driver problem?
Regards
Scubaman31

Mac Pro 1,1 won't start/boot up

Hi all,
I have a big problem with my Mac Pro 1,1 (2,66 Core, 6GB Ram) - it does not start up.
I tried to boot in safe mode, but boot process stopped (spinning circle freezes). Then I tried to boot in single user mode and checked the Harddrive with fsck... The Drive was modified and seems to be okay. But the mac won't start. I tried to boot from the original Snow Leopard DVD and i got an Kernel Panic. Then I tried to get access to myy Harddrive via Target Disk mode but the Harddrivw wasn't accessable for my Powerbook G4 which I used has the Host Computer.
I've resettet the PMU and the Ram - nothing helped.
When I start in Verbose Boot, the Mac shows the following Info:
MAC Framework succsessfully initialized
using 5242 buffer headers and 4096 cluster IO buffer headers
IOAPIC: Version 0x20 Vectors 64:87
ACPI: System State (S0 S3 S4 S5) (S3)
AppleIntelCPUPowerManagement: initialization complete
Sleep failure code 0x00000000 0x12000000
mbinit: done (64 MB memory set for mbuf pool)
rooting via boot-uuid from /chosen: 5106C8FE-933B-3FCF-B172-5979......
com.apple.AppleFSCompressionTypeZlib kmod start
2.2.05 Little Snitch: start
com.apple.AppleFSCompressionTypeZlib load succeeded
AppleIntelCPUPowerManagementClient: ready
Waitung on <dict ID="0"><key>IOProviderClass</key<>string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
Got boot device = IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/SATA@1F,2/AppleAHCI/PRT0 @0/IOAHCIDevice@0/AppleAHCIDiskDriver/IOAHCIBlockStorageDevice/IOBlockStorageDri ver/WDC WD2500JS-41SGB0 Media/IOGUIDPartitionScheme(Main@2
BSD root: disk0s2, major 14, minor 2
jnl: unkown-dev: replay_journal: from: 15926272 to: 18200064 (joffset 0x747000)
FireWire (OHCI) TI ID 8025 built-in now active, GUID 0016cbfffe6e5bf0; max speed s800.
jnl: unknown-dev: journal replay done.
com.apple.launchd 1 com. apple.launchd 1 *launchd(1) has started up.*
com.apple.launchd 1 com. apple.launchd 1 *verbose boot, will log to /dev/console.*
Bug: launchctl.c:3557 (23930):17: ioctl(s6, SIOCAIFADDR_IN6, &ifra6) != -1
Running fsck on the boot volume...
Executing fsck_hfs (version diskdev_cmds-491.2-2').
fsck_hfs: Volume is journaled. No checking performed.
fsck_hfs: Use the -f option to force checking.
hfs: Removed 4 orphaned / unlinked files and directories
launchctl: Please convert the following to launchd: /etc/mach:init.d/dashboardadvisoryd.plist
systemShutdown false
Waiting for DSMOS...
AppleIntel8254XEthernet: Ethernet address 00:17:f2:02:67:fe
AppleIntel8254XEthernet: Ethernet address 00:17:f2:02:67:ff
Previous Shutdown Cause: 0
NVDANV50HAL loaded and registered.
DSMOS has arrived.
Can anybody help me? Any Ideas?
Thank you !!!

Yes, that is what I wanted to know, and tells me it isn't with the hard drive or OS itself.
Not to fear, even English doesn't quite cut it at times.
I assume also you tried with ONLY minimum necessary:
mouse, keyboard and power to computer along with monitor.
If you have your OEM DVD that came with Mac Pro originally, that will not ever boot with original OS, your 8800GT requires 10.5.2 or later OS DVDs.
Your OEM DVD though does have Apple Hardware Test.
Hold 'D' on startup
See if that passes Extended Test.
And if you already did so, no need to do so again, repeated resetting SMC isn't a good idea. But unplug power and hit ON for 8 seconds (nothing happens) and then reconnect power and mouse/kb.
Make sure the 8800GT power is connected and card is (still) firmly seated.
Do a general check of everything, including Risers with RAM.

Mac Pro and G4 won't talk via ethernet

Hi, I know this is child's play for many of you, but I'm at a dead end. I'm trying to network my new Mac Pro with my G4 MDD /dual 1.25/ V.10.2.8. I made sure that file sharing is on in both Macs, that the ethernet ports are active, and that I have a good quality cable. When I try and access the G4 from the mac pro, from Go>connect to server,I get a connection failure window. And from connect to server>browse>network, the G4 shows up but the MPro locks up when I try and connect.
When I try and access the MPro from the G4,via go>connect to internet, I get an error-36 message. And in both cases I'm using either the computer name .local or the ip address.
The macs see each other but won't connect. Any thoughts or experience with this problem?
And finally, I'm really not sure if I'm going about this the right way. My goal is to use the G4 to drive SCSI devices I use for work, and as a file server.
And since the G4 has multiple drives, I don't know if I'll be able to access/see them all via direct ethernet. To see all of the G4 drives from the mac pro, is a direct connect sufficient or do I need a different approach?
Thanks in advance,
KKnographer

Thanks for the tip on applejack. Disc Warrior has been good to me but I thought I'd give AJ a try. I downloaded and ran it in the G4 to clear any potential issues. Afterward, I still could not connect with the G4, via either the IP or the computer name.local.
So I went back to the computer store and picked up a crossover cable. Same price as the patch cable I was using, and I'm aware that it's not technically required, but I figured "why not?" So I installed the crossover cable and I still couldn't connect at first, via Go>connect to server>IP address or name.
Then I tried Go>connect to server>browse>network and I could see the G4 as before. Previously, when I went this route and hit "connect" to see shares, the MPro locked up. This time I held my breath, hit "connect", had to log in as registered, Icould see my HD's in the G4, selected and opened. TaaDaaa! Saints be praised!
As a test to finalize this thread and help out any other poor soul in my position, I dragged the volume icons to the trash restarted the G4 after switching back to the original patch cable. No connection was possible via any route including the network browser. Then I reconnected the crossover cable and it works fine so long as I go in through the network browser and log in.
So the fundamental problem seems to have been the cable. Whether the original patch cable is bad, or whether or not I really need the crossover I don't know, but the crossover works for me and the patch didn't.
Thank you all for your assistance!
KKnographer

Mac Pro with X1900 - can I connect both 20" LCD and Sony Monitor?

I'm about to purchase a Mac Pro with the x1900 for editing video with Final Cut Pro Studio. I'll use a 20" monitor for main viewing, but would like to use a Sony PVM-14L2 as a playback monitor via Component video. Can I use one of the DVI outs of the x1900 to go to the Sony? I found this type of converter online: http://www.svideo.com/hdtvaiwr8500.html
Is anyone using a set-up like this? I figure it must be pretty common for folks who edit video on a Mac Pro to output to a playback monitor via Component video. Will the x1900 let me do that with the right cable?
Thanks,
joel

Hmm. I have that computer, card and dongle - I'll try it out tonight (PST) and let you know.
My gut feeling is that it won't work, or won't work as you would hope.
My powerbook had SVideo out on it, but even when connected to a TV, it would not work as a video out in the same way a fire wire preview through a camcorder did - it was a second monitor on a TV, and was not the same at all as a video out feed (it looked rather horrible in fact).
So, even if this does produce a component out signal, suitable for HDTV, I doubt it will work as a playback monitor.
But I'll post back in about 8 hours time (if someone does not beat me to it.)

Mac Pro does not stay consistently connected to internet

Okay, I will try to be as detailed as possible...
I recently moved and had a new internet connection set up. The company replaced the modem and router I previously had (against my will) with their modem/wireless router combo. My Mac Pro has a wired connection, while all other devices (iPods, iPhones, PC laptop, etc.) in my home are wireless. The wireless devices all work consistently fine, however, the Mac does not. Typically, while having network diagnostics open, I reset the modem and everything is fine. After a few minutes, or after closing diagnostics, it no longer works again. Today, even after restarting the modem and getting all green lights, it doesn't seem to connect at all.
I have Windows installed under boot camp and the connection there works perfectly fine. This tells me there is an issue within my OSX settings, and not the equipment or connection. After learning this, my cable company's tech support basically told me to get lost and contact Apple. Though I'm paying them an obsene amount of money for crappy internet service, they really could care less about ensuring that their products at least work with their customers' equipment (they even told me they're tech support is unfamiliar with OSX).
I'm guessing something in my network settings is causing this, but I don't have enough in-depth knowledge about this particular subject to troubleshoot it myself. I'm desperate for a good samaritan to help as my business can no longer operate until I have working internet access.
PLEASE HELP ME!!!!

Disable the router function in the modem they provided and you can continue to use yours.
Modems, esp. cable, you may be able to return it.
There may be a list of modems that are compatible on their service - even some that aren't listed will be like SB6121.
And are you paying a monthly fee for their modem?
Others have "commented on" the Mac Pro not negotiating as well. But it was when you used your own router, right ?
I am totally sold on
having modem and router separate
Netgear routers - got the WNDR3400v2 last year and thinking about the next level, the R6300 probably this fall. I can even configure and monitor from iPad, iPhone, Android and their desktop app (Win and Mac).
I wonder if like my ISP they have a support forum, I'd be lost w/o. They can check the modem remote login and see what the modem is logging (over my head).
Had some odd electrial spike - 3x in a minute going onto UPS but not an outage. Spikes? left their modem 50% function and semi-crippled. I had to reset modem or it would reset itself I should say every 5-10 minutes at times. ISP could not tell until they got there. Then they found the modem was unable to connect to their activation page and had to replace it and the drop point on the telephone pole 70 ft away.
I now keep a spare modem of my own (SB6121) and continue to use theirs, Cisco.
You do have the ability to use your router, just not double-NAT is all.

My 2007 mac pro has a slow internet connection with lion

Hi:
I've been dealing with a severely slow internet connection with my 2007 mac pro - dual quad core. I have os 10.7.3. I use wifi.
Typically, I'll experience difficulty loading websites completely. Certain sites have a 90% failure rate to load most elements. Other sites operate quickly from time to time. Often, a site will simply fail to load at all. My cable company cannot find anything wrong with my connection and other, newer devices don't have a problem loading sites. It seems the issue is most likely related to my computer.
Interestingly, I can usually "jump-start" the connection by turning my wifi connection off and on and this will (temporarily) allow me to get an image or video to download.
Any ideas?
Thank you for your time.

Hi:
I've been dealing with a severely slow internet connection with my 2007 mac pro - dual quad core. I have os 10.7.3. I use wifi.
Typically, I'll experience difficulty loading websites completely. Certain sites have a 90% failure rate to load most elements. Other sites operate quickly from time to time. Often, a site will simply fail to load at all. My cable company cannot find anything wrong with my connection and other, newer devices don't have a problem loading sites. It seems the issue is most likely related to my computer.
Interestingly, I can usually "jump-start" the connection by turning my wifi connection off and on and this will (temporarily) allow me to get an image or video to download.
Any ideas?
Thank you for your time.

Mac Pro 1.1 won't restart from boot HD or install DVD

I have a MacPro 1.1 quad which won't finish the restart sequence from Boot HD or the Install DVD. I also can't get the DVD to boot to anything but hardware test (D key), which I ran and passed. After reading lots of posts about similar problems, I was pretty sure that it is my ATI Radeon 1900 card gone bad killing the restart right after the Grey apple screen. Then, while trying everything I could think of and finally getting the OPTION key restart to get the Startup Manager, I noticed my old boot camp partition (VISTA) that I had played around with, but never used much. After several failed attempts to get the install DVD to boot, I tried the boot camp partition and to my amazement, after a pause, windows started up. (That's actually how I'm writing this now.)
I ran some tests on the graphics card from windows and it appears to be running fine, albeit a little hot. So now the question: Can the graphics card still be the culprit when it performs ok on the Windows side?
Windows also says that the OSX boot partition of the same drive that boot camp is on can't be read (using MacDrive). But a Seagate HDD diag tool checked the drive and found no errors. I guess that could be part of my problem, but then why wouldn't it boot from the install DVD or in safe mode. I even tried putting the install DVD in my macbook and booting from there in Target mode, with no luck. Also, my install DVD is the original Leopard that came with the machine, but I had upgraded to 10.6.8 later. Would that cause the DVD not to work as a boot disc? I just want to get to the Disk Utility so I can reinstall.
Any knowledge or help would be so appreciated!
Thanks

I have a Mac Pro 1.1 and recently starting having issues. I was running out of drive space for my Vista drive I use Bootcamp. I decided to reinstall Vista on a bigger drive. I went through the normal procedure and had a **** of time installing Vista until I removed the main Lion SSD. Lion has Windows 7 drivers only. So I wanted to reinstall Snow Leopard on a blank drive and get those drivers.
Mac Pro will not read or mount the SL installation DVD. It mounted once and could barely read anything but at a slow rate. I cleaned the disk, but after that despite holding down not the C and D keys at boot up and using Option at boot up the SL kept getting spitted out. Tonight I took it apart and cleaned it with compressed air and vacuum cleaner. I popped the DVD again and it spit it out. I put a DVD movie and it mounted fine. I'm ripping it as we speak. I've done this before just want to see why it won't read SL.
Considered buying an external DVD write for $39 to see if I can get around this issue. Will post back on results. Otherwise this 2007 Mac Pro has been rock solid since then.

Hello, I have a early 2008 Mac Pro and it won't boot even with SL DVD

My Mac Pro (3.0GHz quad core (dual CPUs) 8GB 667 RAM) won't boot. it gets to the grey screen/ Apple logo and hangs on the logo for a few seconds then flashes either the question mark folder icon or on the circle-slash icon () for about half a second then the logo for a few seconds and repeats. It will go into Target Disk Mode (T) but not Diagnostic Mode (D)
Here's what I have done to try to fix it:
unplugged all peripherals
tried to force DVD boot holding C (checked disc for errors on SL iMac)
removed all HDDs and rebooted holding C, plus a combination of having some in/ some out.
removed first DVD-ROM and used second drive
removed second DVD-ROM and used first drive
held shift during startup
held option during startup
removed graphics card
put HDDs back in with GFX card out, plus combinations
put only the boot drive HDD in (not time machine or 3rd HDD)
put blank HDD in and booted DVD
put mac formatted (used iMac to format) HDD in and booted with DVD
used an G4 USB keyboard again for all of the above
All of this has not worked so I am stuck with what to do. It was all working fine a couple of days ago. At the time it randomly shut down I was trying to use Boot Camp to create a Windows 7 area, but I made sure it was using the 3rd HDD I had put in the machine a couple of days before so it shouldn't be interfering with normal operations. I had also formatted it to NTFS earlier but reformatted it on the Mac Pro to Mac OS Extended - I don't know if this is even relevant.
Any suggestions (except taking it to a Apple repair centre as I can usually fix anything myself!)
Thanks.

Go to System Profile and look, does it say "MacPro3,1"?
That is 2008.
FBDIMM would be 800MHz. Did you use older slower 667MHz in yours?
You can but take a hit in performance.
Sounds like MacPro1,1.
Mac Pro (3.0GHz quad core (dual CPUs) 8GB 667 RAM)
In 2007 March an 8-core 3GHz did come out 2,1.
So just to be clear.
===========
It was all working fine a couple of days ago. At the time it randomly shut down I was trying to use Boot Camp to create a Windows 7 area,
Whenever you want to install Windows, remove all the drives other than the one Windows goes to. And if you use a dedicated drive YOU DO NOT NEED Boot Camp Assist, unless you use XP, which really is limited and crippled (one processor, 1.9GB RAM support).
And when it freezes, your only choice is to nuke (reformat) and restore or get out that backup CLONE you made before (ie, Step #1 in the Boot Camp Guide).
Sure that whole NTFS / MBR / GUID could be an issue, but you should just have a blank drive or clone.
No don't bother Apple, they seem to not have a good sense about Windows on Mac Pro anyway.
Other than zap pram from cold boot / tried booting with NO drives inside and just 10.6. DVD - should be fine.
You should be fine iwth Windows 7 DVD and one drive, or even XP.
Make sure you take your time and reconnect cards etc properly and any cables.
Booting from OS X DVDs may not work if there is a drive with a totally shot directory or partition table. Put them in FW case and turn on AFTER OS X is booted.
Why aren't people Cloning as a Backup Strategy
Carbon Copy Cloner 3.4.2
How To clone

Mac Pro DVD drive won't load some software discs

I just bought two sets of Photoshop Elements, and my 2007 Mac Pro failed to recognize all six DVDs. I'm realizing I've had this problem with a few software discs in recent years, including some Final Cut Studio install discs. CDs and regular DVDs work fine - just some software DVDs are eventually ejected by the computer without showing up on the desktop. I have tried cleaning the drive with a disc cleaner.
My way around it has been to put these discs in my PC, make a copy, and then these copies load fine in my Mac. But it's a nuisance, and my PC won't be around forever.
Can anyone suggest what the problem might be? Or a decent external drive (Blu-ray?) that I might want to replace it with?
Thanks.

I'll try that tomorrow. Thinking it could also be:
1) The PRAMM battery. found info on that they can wear out close to 5 years. This MAC PRO is close to that now. And I use a lot of power on it.
2) MAC PRO is plugged into a SURGE PROTECTOR, instead of right into the wall outlet.
3) Been doing a lot of FORCE QUITS and HARD BOOT -- unplugging it directly when it wouldn't shut down soon enough -- lately this past year.
I just assumed that this MAC PRO with the XEON QUAD CORE etc., was a heavy duty enough NLE,
that i wouldn't have these problems. It's not fully loaded with all the chips it can carry...and I don't have near enough external terabyte hard drives for storing video and audio files to edit. I've been storing wayyy too much
on the internal hard dives and just have to stop that.
I noticed these past few days that much of the LETTERING for hard drive icons and folders' titles
were starting to look in OVERLAPPING of the lettering. That was my first hint that something was up.

Mac Pro - Yosemite - iMessage won't connect

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