The Mac Pro is a workstation computer manufactured by Apple Inc.. The first Mac Pro was based on dual Dual-core Xeon Woodcrest processors and formally announced on August 7, 2006 at WWDC. The current model Mac Pro was announced on July 27, 2010 and features Intel Xeon processors based on the Nehalem ...

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Mac Pro (10.11.5) can't log in, doesn't display screens

I have an old Mac Pro tower (2009; firmware 5,1). I just updated to the latest El Capitan OS X 10.11.5 from 10.11.4. Since the upgrade, the computer has not been displaying screens (I have an Nvidia ...
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1answer
49 views

EFI Boot Windows 8.1 or 10 Install on MacPro4,1 / Mac Pro (Early 2009)

I would like to install Windows 8.1 or 10 on a separate single SSD disk in my MacPro4,1 (not yet flashed to MacPro5,1) using only EFI/GPT method. The machine has a 64Bit EFI (rEFIt reports version ...
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371 views

Why does my wired ethernet connection die periodically after a DHCP lease renewal?

I've got an Early 2008 Mac Pro (MacPro3,1) that is fairly healthy from what I can tell. It has survived OSX upgrades from the original 10.5 to 10.9.x (haven't pulled the trigger on Yosemite yet) and ...
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3answers
3k views

Mac Pro: Kernel panic during HDD boot and DVD boot

I have a 2007 Mac Pro (OS X Tiger 10.4.11) that cannot boot up anymore since a few days. I see the grey screen with the apple logo and the rotating circle. After a minute or so I get a kernel panic. ...
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2k views

Mac Pro hangs at startup showing white screen with spinning pie wheel

MacPro 1,1; lion? startup hard drive failed (with loud buzzing). Removed bad drive, installed replacement, inserted Lion USB drive, verified new drive using the Lion usb drive, started installation ...
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1answer
19 views

Mac Pro 2,1 updates and firmware question:will the firmware from the older work with the newer and vice versa?

I'm pursuing an alternative boot drive so i can explore a yosemite or elcapitan environment from my old mac pro 2,1 currently in the last version of snow leopard. (with legally purchased soft ware ...
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1answer
1k views

Messages on MacBook Pro not working

I can't get Messages to work on my Macbook Pro (retina). One day it just went offline, and I can't get it back online. When I try to login I get this screen and it won't accept the password, even ...
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3answers
13k views

Cannot access vital boot options on Mac Pro with OS X Lion

I have this used Mac Pro (mid-2010) that I recently bought, that came with OS X Lion installed. It was apparently installed from an image because there are a lot of installed apps and, though there is ...
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5answers
5k views

Where can I buy a replacement Mac pro 2013 SSD drive?

Having acquired a second hand Mac Pro (A1481) I want to upgrade the internal SSD drive from 256GB to at least 500GB. I have spent hours searching online, and can't find a provider other than OWC The ...
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1answer
2k views

MacPro 3,1 (2008) logic board SAS connector: Has anyone “replaced” the stock hard drive backplane?

I have a lightly hot-rodded, early 2008 MacPro 3,1. Boots from an SSD mounted in the lower optical bay and attached to the second optical SATA port. Each of the four internal drive bays hosts a 3TB ...
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0answers
9 views

What happens when PCIe boost circuits are overloaded?

In my understanding, the 2010 Mac Pro is rated for 75W of power for each PCIe slot, plus 75W for each of the two 6-pin boost (aux) circuits. I know it's possible to exceed these limits, because I do ...
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1answer
29 views

What is the maximum safe current for Mac Pro PSU?

I regularly put my 2010 Mac Pro under pretty heavy usage, maxing out the 12 core CPUs and GTX Titan Black. I can monitor the voltage and current using iStat Menus, but I'm looking for a specification ...
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1answer
329 views

What are the hardware requirements for Hypervisor.framework?

I was planning to use xhyve to virtualise FreeBSD on my early 2009 Mac Pro (eight core) which has a fresh install of El Capitan (with all updates).I installed via homebrew and I get the following ...
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2answers
2k views

Mac Pro loses network connection after wake from sleep since Yosemite upgrade

I have a really strange issue since i updated to Yosemite. When i wake up my 2012 Mac Pro, the network connection is totally lost. Output from dmesg (sorry, couldn't copy/paste at this time): - Nic ...
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2answers
4k views

Is there an 802.11ac Airport Extreme card available for older Mac Pro machines?

When I built my Mac Pro 3,1 machine (Early 2008) back in the day, I chose not to get an Airport Extreme card since I only intended to connect it via an Ethernet cable. However, I've noticed that the ...
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0answers
409 views

Is there source code or an update for the Mac Pro 3,1 overclock utility that ZDNet produced several years ago?

The Mac Pro from 2008 (MacPro3,1) is still a fairly relevant machine in the modern OS X as not only does it run the latest releases of OSX, but also the 8 CPU cores that it came with provide enough ...
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0answers
45 views

Why exactly do people consider the Mac Pro 3,1 (Early 2008) PCI bus too slow for fast GPUs?

I've upgraded the GPU on my MacPro3,1 (Early 2008) from the original 8800GT to a 6870 and things were fine. I've been looking recently to take it another notch up the ladder, but I've stumbled across ...
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1answer
223 views

Are there any Hardware RAID Cards with Batteries that will work in a Mac Pro 3,1?

I'm looking to install Proxmox on my MacPro3,1 and it's suggested that if you plan to use the system for 5 years that you install a Hardware RAID card with a battery in it, so that if the power goes ...
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1answer
43 views

Latest OS X I can install on Mac Pro 3,1

After many years of having kernel panics with black screen shut downs I finally bought 32 GB of brand new 800mHz memory and all seems fine now. I would now like to upgrade OS X. What is the latest OS ...
3
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1answer
84 views

Is it possible to upgrade a Mac Pro (2007) with Lion (10.7) to Yosemite (10.10)?

I have a MacPro (mid-2007) with the configuration listed below: Processor: 2x 2.66Ghz Dual Core Intel Xeon Memory: 20Gb 667Mhz - DDR2 FB-DIMM OSx: Lion 10.7.5 NVIDIA Chip Model 1024Mb SSD: 512Gb ...
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2answers
69 views

Is the SSD “stick” in the MacBook Pro the same as the Mac Pro?

I have one of the new Mac Pros, and I'm thinking about upgrading the internal SSD. It seems that some Amazon sales suggest that the drive is the same format as in the Retina MacBook Pro. Does anyone ...
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19 views

Limiting Mac Pro (late 2013) power draw

I'm planning to buy a trashcan mac pro, but I have strict limits about power draw. Is there any trick to limit cpu frequency? You can do so quite easily, for example, in windows and linux. Limiting ...
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2answers
1k views

What is the largest hard drive a Mac Pro 3,1 (early 2008) will support?

What is the largest internal hard drive a Mac Pro 3,1 (early 2008) can support? I read here that it's around 1.2 TBs is that correct? Also I plan to run Proxmox on it, not Mac OS X (well, I might ...
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0answers
215 views

Intermittent Keyboard Failure when Waking from Sleep

So after a pretty catastrophic failure (see: Yosemite Upgrades: Lost and Broken User Accounts ) I have reinstalled Yosemite on my old tower-style Mac Pro and begin the work of restoring from backups. ...
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85 views

Mac Pro 1.1 stuck on grey screen

After Software update to 10.11.4 form 10.11.3 on my Mac Pro 2006 I can not boot up from any media, like DVD, USB memory, Network, you name it, and can see only a grey screen. I have now GeForce GT7300 ...
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1answer
74 views

Intel Mac Pro 1.1 stops responding after ~5 minutes

If anyone could shed a little light on this, I'd be extremely grateful. I have a 2006 mac pro 1.1 (intel cpu) that consistently stops responding after 4-5 minutes. The mouse still moves but nothing ...
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1answer
63 views

Mac Pro stuck on white loading screen

I have Mac Pro which is running 10.8.5 After I turn on the Mac, I can see the regular apple logo, but after it's disappear, I see white screen (whiter than before) and a loading wheel for a few ...
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1answer
47 views

Best practices for Macbook Pro usage [duplicate]

I have a new Macbook Pro and I want it to last and keep a healthy battery. How do I best ensure this? If I am using it, do I let it discharge, or leave it plugged in? If I am discharging it / ...
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3answers
4k views

Mac Pro Memory - Should I use 8 RAM slots in dual-channel mode or 6 RAM slots in triple-channel mode?

I have a Mac Pro tower with a 2 x 2.66 GHz 6-Core Intel Xeon chipset, and 8 RAM slots. I have been told because of the processor's triple-channel memory capability that I should be installing RAM ...
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2answers
902 views

Mac Pro cd drive stuck open

I just got a brand new mac pro. I opened the cd drive with the eject button on the keyboard, and then went to close it the same way, the cd drive goes in, but the metal gate doesn't come back up. What ...
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2answers
634 views

3 Terabyte hard drives in Mac Pro Mid 2010?

I got the Mid 2010 Single CPU Mac Pro and want to add a 3 TB hard drive, specifically the Western Digital Caviar Green WD30EZRX. Does anyone know if that drive will work? Not looking to boot from it, ...
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1answer
927 views

Network service inactive/Unable to add Wi-Fi network on mac pro

I have no idea what happened but my Wi-fi network has disappeared completely! The Wi-fi icon found on the top menu bar is gone. I'm unable to create a new Wi-fi network service but only able to ...
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1answer
22 views

Mac Pro + Dual 27" Cinema Displays brightness & brightness control

Hardware: Mac Pro 4.1 (circa 2009) AMD Radeon HD 7950 3072 MB graphics card I have just connected dual 27" Cinema Displays. Both work, lots of display space ;-) Two problems (perhaps related): ...
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2answers
35 views

How big of a HDD can a Mid 2010 Mac Pro handle?

I heard somewhere that the maximum HDD size that my Mid 2010 Mac Pro can handle is 4TB. Is this correct? If not, how big can I go?
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1answer
118 views

Mac Pro APPLE RAID volume questions

My Mac Pro 4.1 (circa 2009) has a MacPro Raid Card and the software shows two storage volumes - one 1TB SAS disk and one 2 TB SAS RAID volume. The removal of the Parallels volume leaves me with the ...
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1answer
81 views

2008 Mac Pro Won't Shut Down (Black Screen - Gray Loading Wheel)

One of our Mac Pros at work is having issues shutting down. On shut down, the screen will turn black and a small gray loading wheel will come up in the center of the screen. It will stay like this no ...
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1answer
52 views

Downloaded apps does not start, failed with error -10810

I try to install SQLDeveloper.app that I downloaded from Oracle, but every time it gives me that error LSOpenURLsWithRole() failed with error -10810 for the file ...
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1answer
84 views

Retina monitors and old Mac Pro

I have an Early 2009 Mac Pro with one DVI out, one Mini DisplayPort out, and an NVIDIA GeForce GT 120 graphics card. I'm wondering if my Mac will support retina graphics, and if so, are any of the LED ...
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3answers
130 views

Is it legal and “workable” to use a Mac Pro as a thin server for Mac OS?

I have a software company and my developers each have their own preferences for an OS (Mac, Linux based or Windows). For windows I know you can use remote desktop and stuff. I know it is possible in ...
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1answer
115 views

Mac Pro + 50” 4K Ultra HD LED TV as monitor — Best graphics card?

I have a 2009 Mac Pro 4.1, with the following specifications: 2 2.93 GHz Quad-core Intel Xenon processors 32 GB RAM 2 1 TB HD 1 MacPro Raid Card 1 Nvidia GeForce GT 120 512 MB The work I do ...
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2answers
69 views

Mid 2010 Mac Pro with no video card; will it run with new HDDs?

I have a Mid 2010 Mac Pro that was once my main computer; however, when the graphics card failed and I couldn't find a replacement that the Mac would take I had to replace the computer. I still have ...
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1answer
138 views

Should one wait for new Mac Pro? [closed]

I want to buy Mac Pro. I've found used 1 year Mac Pro with Xeon 3.5 6-core with 2xD500 which is cheaper around 1700 euro then new one. However knowing there's new Mac Pro coming (hopefully) this year ...
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0answers
20 views

Mac Pro Tower, 1 or 2 CPUs

I'd like to know whether a 4,1/5,1 Mac Pro with dual processor board can actually work with just one CPU installed.
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1answer
62 views

Seeking for some advice of Mac Mini vs Macbook Pro both maxed out specs [closed]

I am looking for some advice about getting a macbook pro or mac mini. Basically, the case with me is that I currently have a mid 2014 macbook pro that is a base model. I use the macbook pro at home ...
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2answers
71 views

“USB Needs more power.” - Mac Pro with 7 Keyboards?

I am in the process of setting up a MacPro whose sole purpose is to run VMs on each of the six possible screens each with it's own keyboard and mouse. So what I have is six DVI monitors with six ...
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1answer
212 views

Mac Pro (G87271J9UPZ) Not Updating To El Capitan

I recently purchased an old Mac Pro, Model G87271J9UPZ, from eBay to use it as an advanced CPU performance computer apposed to my 2012 MacBook Air that can't endure much. So far it is working, I have ...
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1answer
52 views

Mac Pro 4,1 CPU upgrade

I own a Mac Pro 4,1 (single socket) with a Nehalem Quad-Core CPU. I'd like to upgrade it with a six-core Westmere processor. Now, what I have to do prior to installation of the Westmere processor? ...
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1answer
177 views

16GB RAM 1067 DDR3 not Booting on MacbookPro7,1 (13 in Mid 2010)

I have a mid 2010 13in MacBook Pro (7,1) with a 2.4GHz Intel Core 2 Duo processor running OS X 10.11.3 (El Capitan). I had 4GB of RAM (2x2GB) and I read somewhere that despite Apple's stated max of ...
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92 views

Apple Hardware Test reports error 4SNS/1/40000001:VeAS-0.000

I got a great deal on a base 2.66 GHz Quad-Core Intel (W3520) 2009 Mac Pro4,1 on eBay. I already have a (flashed) Gigabyte Radeon HD 7970 GHz edition. I have a 3.46 GHz Intel Xeon W3690 on the way. ...
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1answer
118 views

Display problems in El Capitan on screen sharing

I have recently updated the OS in an old Mac Pro to El Capitan. Since then I have severe display problems. I must add that I access the system via screen sharing. The fonts are horribly blurred in ...