Mac Pro randomly disconnecting USB devices

Hello All,
Am hoping someone out there will be able to advise me. I have a 1TB external SATA drive connected directly to one of my Mac Pro USB ports, (that is, not via a USB hub). The Mac Pro has a habit of randomly disconnecting the drive during file transfers. It seems to particularly do it when the screen saver initiates itself. I've disabled the screen saver but unfortunately that hasn't resolved the problem. The problem itself doesn't seem to be isolated to the external USB hard drive either. The Mac has on occasions disconnected other USB devices too.
Any suggestions or ideas on what the cause of it is and how I resolve it?
Many thanks
GPJ007

Yes Grant, I've exchanged the power suppply, cables, the HUB and also the HDD and checked them on my MBP - they work fine. The only USB slot that's working fine is the one on the PCI-E Card. All internal Ports do eject the USB HDD's and also have problem with Printercommunication. I can mount the USB HDD without Problem, until I want to access a larger File or transfer data from or to it, then it ejects itself - well after freezing the Computer for 5min first, until the unmount message appear.
By the way: Sorry, was a bit frustrated. I'm working as an Freelance Editor and really need to have a working USB. But the only thing I found were a huge amount of questions to the same problem, but no solution. And from apple side the only advice was to not use third party device or use only powered HDD's and HUB's. That's not really helpful...
GPJ007: Ok, I hoped to not have to make a new Setup of the OS and all the program. Well in a few weeks there is a gap in the order chain, I'm going to reinstall the OS then and let you know about sucess or not.
Thanks in advance

Similar Messages

Hi - my 2011 Mac Pro no longer recognizes devices in the usb ports, I've been told it's the logic board. is there a way I can connect the iomega external hard drive to it through the firewire or thunderbolt ports?

Hi - my 2011 Mac Pro no longer recognizes devices in the usb ports, I've been told it's the logic board. is there a way I can connect the iomega external hard drive to it through the firewire or thunderbolt ports?

jrburrows wrote:
Ok, fair enough. But since Job's death - Apple's control on leaks has been terrible. I got the new iPhone, and I like it - but it hasn't made nearly as big as an impression as previous ones. Because of the vast ammount of leaks. With the iPad mini leaks, it's 99% sure to come out next week.
Apple uses many manufacturers and it's massive also websites prefer to report on Apple whether true or false because it brings more hits.
Amd by "others" I meant other people on iPads - not other devices/manufacturers. It's possible to do so, I just want to know how. I honestly don't think we'll ever be in a Post-PC era until all tablets allow us to use USB in the way computers do.
No, USB is not the future, you missed the memo about cloud and wireless computing?

Does my mac pro have a tracking device..if not can one be installed

Does my mac pro have a tracking device..if not can one be installed...thanks

Does my mac pro have a tracking device
No.
Install tracking software:
http://mac.appstorm.net/reviews/security/hidden-track-and-recover-your-stolen-ma c/
http://preyproject.com/

When I insert the usb of my Elgato Video Capture into my Macbook Pro, it says 'USB Devices Disabled'? What does this mean and how can I solve it?

When I insert the usb of my Elgato Video Capture into my Macbook Pro, it says 'USB Devices Disabled'? What does this mean and how can I solve it?
I've partitoned Windows swell and it says the same thing? I'm trying to live capture from my Sony Camcorder through Elgato but I just get the above message?

This means that the backups were made with a later version than the version currently on the phone. You will have to update the phone to 6.1.3 to be able to restore the backup. You can restore a backup made with an earlier version, but not with a later version.

Can you boot a Mac Pro using a USB Pen Drive?

Hello.
Can you boot a Mac Pro using a USB Pen Drive? OS=Windows or Linux or BSD or MacOS... I know it is bios specific on a PC if the option is available. If this is possible, does anyone have a link to instructions?
Thanks,
Scott

Not to get in to an argument over semantics here, but by saying "Windows should boot if you have installed the requisite Boot Camp drivers," you are implying "that the Boot Camp drivers [are] needed for Windows to boot." I was just clarifying your post so people didn't get confused.
As for booting a Mac Pro off a USB flash drive, if you have been successful in doing so, can you share with me your method? I've tried booting of an OCZ Rally2 4GB flash drive and it's never worked on my Mac Pro. It doesn't show up when I hold option down and if I try to boot through rEFIt, I get an error about my Mac's firmware not supporting USB booting (I have the latest firmware installed, too). I've tried GPT and MBR partitions, both to no avail. Booting off USB hard disk drives is no problem though. And I can boot off this flash drive on a Core Duo iMac.
Any ideas?

Disconnecting USB devices

Hey guys,
i have problem with all my USB devices with memory (external HDDs, lumia phone etc. devices without memory like mouse works fine), they just randomly disconnects - no matter what USB port i use. Sometimes right after i plug them in, then they reconnect after few seconds, then disconnect again and so on. Sometimes they stay connected for a while, then disconnects. I am mostly able to copy what i need, but its very disturbing. Anyone have idea, what could be wrong?
I bought notebook without OS - i got original windows 8 Pro 64-bit with 8.1 update. There was no USB driver delivered on driver CD, windows just downloaded some. And there are none on msi web.
MSI GE60 2PE Apache
Thanks for any ideas

Quote from: helloweenmsi on 16-December-14, 04:18:05
Hey guys,
i have problem with all my USB devices with memory (external HDDs, lumia phone etc. devices without memory like mouse works fine), they just randomly disconnects - no matter what USB port i use. Sometimes right after i plug them in, then they reconnect after few seconds, then disconnect again and so on. Sometimes they stay connected for a while, then disconnects. I am mostly able to copy what i need, but its very disturbing. Anyone have idea, what could be wrong?
I bought notebook without OS - i got original windows 8 Pro 64-bit with 8.1 update. There was no USB driver delivered on driver CD, windows just downloaded some. And there are none on msi web.
MSI GE60 2PE Apache
Thanks for any ideas
Make sure you installed intel chipset drivers since some times USB host controller driver is in that pack such USB 3.0 controller and so

Mac Pro Late 2013 USB problems / freezing

I have a quad-core CPU Mac Pro late 2013 (Model Identifier: MacPro6,1). MacOS X 10.9.5.
I have had all sorts of USB devices hooked up to it. At any one time, I usually have all 4 ports filled. I have a 3TB USB 3.0 disk that stores my large files, a USB mouse and keyboard (logitech with a usb mini dongle), a cable to charge my logitech USB cordless mouse, Lightning cable to my iPhone 5, and other things that I rotate in and out, like CF card reader, Audio Box USB audio interface from PreSonus, Sony Webcam, etc.
About 3 months into having the Mac Pro, I noticed that my keyboard went dead in the middle of using it. The mouse was dead too. I blamed the RF dongle that they both share, because the Apple Magic Trackpad (bluetooth) I have still functioned. Try as I might, I couldn't get the keyboard or mouse to work again, so I used the Magic Trackpad to restart the machine, and then my keyboard and mouse worked again.
It wasn't until later that I realized that all the USB busses on the machine had frozen or "died" temporarily. I realized it later because my USB hard drive complained about being "ejected improperly."
Now I have had the USB die on the Mac Pro at least 15 times over the last month and a half. Usually once every two days or so.
I have tried (almost one by one) using some of the USB devices on the mac, and removing others to ascertain if it's a certain USB device that is causing this. But the odd thing is that I never get a message from the OS like "xxx USB device is drawing too much power."
I'm going a little nuts here because I cannot see any rhyme or reason to the USB interface lock ups. And each time it happens, all the USB devices go dead until I restart. Sometimes, I'm able to SSH into the machine from my iPhone and issue a "shutdown -h now" and even though I see the Mac OS X UI shutdown, it never fully halts. I often have to hold the power button to get the machine to turn off.
I really can't say if it's software related, hardware related or what. I've tried to watch my workflow carefully to see if anything seems to make a pattern, but nothing yet.
Any suggestions? Is anyone else seeing behavior like this? Do we think it's a USB device... or is my Mac Pro flakey?
Thanks!

I was using a hub, so I immediately removed that upon the first issues. But the USB has still frozen after the removal of the hub. The HD is a self powered G-Tech drive. I'll have to play around a bit more will all of your suggestions this weekend.
I woke up the computer just now to check the discussion, an am greeted with a notification from Mavericks that the "Disk Not Ejected Properly. (Eject disk before disconnecting or turning it off)" which the disk is still connected, and the usb seems to still work fine. In fact I was able to unplug the USB cable for the G-Tech HD, and then replug it in, everything reappeared fine. The USB bus was not frozen (this time).
But it's this kind of flakiness that has me coming and going. I haven't (yet) been able to identify whether the USB is the problem or the driver or a third thing I haven't figured out...

Mac Pro Randomly restarts

Hi,
Lately my Mac Pro has been restarting randomly, saying it has done so because of an error. I have counted 5 times so far today. I am looking for a common task that it may be tied to but so far I am speculating at best. Two times I was reading a news article in firefox.
Here are the specs:
Model: MacPro4,1, BootROM MP41.0081.B07, 4 processors, Quad-Core Intel Xeon, 2.66 GHz, 6 GB, SMC 1.39f5
Graphics: NVIDIA GeForce GT 120, NVIDIA GeForce GT 120, PCIe, 512 MB
Graphics: NVIDIA Quadro FX 570, NVIDIA Quadro FX 570, PCIe, 256 MB
Memory Module: DIMM 1, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431
Memory Module: DIMM 2, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431
Memory Module: DIMM 3, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431
Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports
Network Service: Ethernet 2, Ethernet, en1
PCI Card: NVIDIA GeForce GT 120, sppci_displaycontroller, Slot-2
PCI Card: NVIDIA Quadro FX 570, sppci_displaycontroller, Slot-1
Serial ATA Device: HL-DT-ST DVD-RW GH41N
Serial ATA Device: HDS725050KLA360, 500.11 GB
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd110000 / 3
USB Device: Apple Keyboard, apple_vendor_id, 0x0220, 0xfd112000 / 4
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x5a100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x5a110000 / 3
FireWire Device: built-in_hub, 800mbit_speed
Lately I did add the auxillary gfx card for Tri monitors but I have used it in this setup for almost two weeks with no issues whatsoever.
Here is the panic report:
Tue Aug 21 15:55:06 2012
panic(cpu 0 caller 0xffffff80174b7b95): Kernel trap at 0xffffff8028384050, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffff8028384050, CR3: 0x000000003d4fb000, CR4: 0x0000000000000660
RAX: 0xffffff802b314200, RBX: 0xffffff802d1df000, RCX: 0xffffff8017a5cba0, RDX: 0xffffff802d1df008
RSP: 0xffffff80cef53b28, RBP: 0xffffff80cef53b40, RSI: 0x000000000000ffff, RDI: 0xffffff802b413a00
R8: 0x0000000000000002, R9: 0x0000000000000000, R10: 0x00000001033ff000, R11: 0x0000000000000200
R12: 0xffffff7f9854be38, R13: 0x0000000000000000, R14: 0xffffff802d1df000, R15: 0xffffff802d1df000
RFL: 0x0000000000010286, RIP: 0xffffff8028384050, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0xffffff8028384050, Error code: 0x0000000000000011, Fault CPU: 0x0 Kernel NX fault
Backtrace (CPU 0), Frame : Return Address
0xffffff80cef537c0 : 0xffffff801741d5f6
0xffffff80cef53830 : 0xffffff80174b7b95
0xffffff80cef53a00 : 0xffffff80174ce4ad
0xffffff80cef53a20 : 0xffffff8028384050
0xffffff80cef53b40 : 0xffffff7f9854295f
0xffffff80cef53b70 : 0xffffff7f9854292c
0xffffff80cef53b90 : 0xffffff7f9854760b
0xffffff80cef53bc0 : 0xffffff8017865cb3
0xffffff80cef53c20 : 0xffffff80178638ef
0xffffff80cef53d70 : 0xffffff80174981a1
0xffffff80cef53e80 : 0xffffff8017420abd
0xffffff80cef53eb0 : 0xffffff8017410448
0xffffff80cef53f00 : 0xffffff80174195fb
0xffffff80cef53f70 : 0xffffff80174a5ad6
0xffffff80cef53fb0 : 0xffffff80174ced13
      Kernel Extensions in backtrace:
         com.apple.iokit.IOSurface(86.0.2)[7199A934-B665-33C1-A15A-F56A811A1C2B]@0xfffff f7f98541000->0xffffff7f98552fff
BSD process name corresponding to current thread: firefox
Mac OS version:
12A269
Any ideas?

interestingly enough, the latest crash was while watching a TED video in firefox. Could be display related, although for some reason every crash seems to happen while actively using firefox. I will try to narrow it down by running without virtual box for now and if I still get a crash I will try running without firefox.
Panic:
Interval Since Last Panic Report: 56695 sec
Panics Since Last Report:          4
Anonymous UUID:                    623788AC-0ACE-4E2C-ADDE-F312B665F381
Wed Aug 22 07:06:14 2012
panic(cpu 0 caller 0xffffff8010ab7b95): Kernel trap at 0x0000000000000000, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000000000000000, CR3: 0x000000005ea1c000, CR4: 0x0000000000000660
RAX: 0xffffff8028cde400, RBX: 0xffffff8025b4ba00, RCX: 0xffffff8027d1ae00, RDX: 0x0000000000000008
RSP: 0xffffff80bc003af8, RBP: 0xffffff80bc003b50, RSI: 0x0000000000000010, RDI: 0xffffff8028cde400
R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0xffffff8027322894, R11: 0xffffff7f91f58c32
R12: 0xffffff8025e28100, R13: 0xffffff80223b9000, R14: 0xffffff802814a000, R15: 0x0000000000000000
RFL: 0x0000000000010286, RIP: 0x0000000000000000, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000000, Error code: 0x0000000000000010, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff80bc003790 : 0xffffff8010a1d5f6
0xffffff80bc003800 : 0xffffff8010ab7b95
0xffffff80bc0039d0 : 0xffffff8010ace4ad
0xffffff80bc0039f0 : 0x0
0xffffff80bc003b50 : 0xffffff7f91f58e8e
0xffffff80bc003ba0 : 0xffffff8010e65313
0xffffff80bc003bc0 : 0xffffff8010e65eed
0xffffff80bc003c20 : 0xffffff8010e638ef
0xffffff80bc003d70 : 0xffffff8010a981a1
0xffffff80bc003e80 : 0xffffff8010a20abd
0xffffff80bc003eb0 : 0xffffff8010a10448
0xffffff80bc003f00 : 0xffffff8010a195fb
0xffffff80bc003f70 : 0xffffff8010aa5ad6
0xffffff80bc003fb0 : 0xffffff8010aced13
      Kernel Extensions in backtrace:
         com.apple.GeForce(8.0)[91C40470-82BA-329A-A9D7-4C70F28275FD]@0xffffff7f91f15000 ->0xffffff7f91fd7fff
            dependency: com.apple.NVDAResman(8.0.0)[6A699209-FB98-316B-A3C0-DCA82AA8C86B]@0xffffff7f911 1a000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[E37F420A-B5CD-38ED-9441-5247583B6ACE]@0xff ffff7f91106000
            dependency: com.apple.iokit.IOPCIFamily(2.7)[8C9E06A4-13D0-33F5-A377-9E36F0ECC229]@0xffffff 7f9108f000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[5D671681-D21B-3CCA-9810-B15E648C1B27]@0 xffffff7f910c3000
BSD process name corresponding to current thread: plugin-container
Mac OS version:
12A269
Kernel version:
Darwin Kernel Version 12.0.0: Sun Jun 24 23:00:16 PDT 2012; root:xnu-2050.7.9~1/RELEASE_X86_64
Kernel UUID: 8D5F8EF3-9D12-384B-8070-EF2A49C45D24
Kernel slide:     0x0000000010800000
Kernel text base: 0xffffff8010a00000
System model name: MacPro4,1 (Mac-F221BEC8)
System uptime in nanoseconds: 54637471555798
last loaded kext at 54851235243: com.apple.filesystems.smbfs          1.8 (addr 0xffffff7f90ff9000, size 229376)
last unloaded kext at 289593166152: com.apple.driver.AppleIntel8254XEthernet          3.1.1b1 (addr 0xffffff7f91c28000, size 69632)
loaded kexts:
org.virtualbox.kext.VBoxNetAdp          4.2.0
org.virtualbox.kext.VBoxNetFlt          4.2.0
org.virtualbox.kext.VBoxUSB          4.2.0
org.virtualbox.kext.VBoxDrv          4.2.0
com.apple.filesystems.smbfs          1.8
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.driver.AppleBluetoothMultitouch          75.15
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AppleTyMCEDriver          1.0.2d2
com.apple.driver.AGPM          100.12.69
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleHDA          2.3.0f2
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.driver.AppleMikeyDriver          2.3.0f2
com.apple.iokit.IOBluetoothSerialManager          4.0.9f8
com.apple.GeForce          8.0.0
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f8
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.ApplePolicyControl          3.2.6
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.2.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.iokit.SCSITaskUserClient          3.5.1
com.apple.BootCache          34
com.apple.driver.AppleUSBHub          5.1.6
com.apple.driver.AppleFWOHCI          4.9.5
com.apple.driver.Intel82574L          2.3.0b4
com.apple.driver.AppleAHCIPort          2.4.0
com.apple.driver.AppleUSBEHCI          5.1.5
com.apple.driver.AppleUSBUHCI          5.1.5
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleACPIButtons          1.6
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.6
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.driver.IOBluetoothHIDDriver          4.0.9f8
com.apple.driver.AppleMultitouchDriver          235.27
com.apple.kext.triggers          1.0
com.apple.driver.DspFuncLib          2.3.0f2
com.apple.iokit.IOAudioFamily          1.8.9fc9
com.apple.kext.OSvKernDSPLib          1.6
com.apple.iokit.IOSurface          86.0.2
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.iokit.IOBluetoothFamily          4.0.9f8
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f8
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleHDAController          2.3.0f2
com.apple.iokit.IOHDAFamily          2.3.0f2
com.apple.nvidia.nv50hal          8.0.0
com.apple.NVDAResman          8.0.0
com.apple.driver.AppleGraphicsControl          3.2.6
com.apple.iokit.IONDRVSupport          2.3.4
com.apple.iokit.IOGraphicsFamily          2.3.4
com.apple.driver.AppleSMC          3.1.3d11
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.2.0d16
com.apple.driver.AppleUSBHIDKeyboard          165.5
com.apple.driver.AppleHIDKeyboard          165.5
com.apple.iokit.IOUSBHIDDriver          5.0.0
com.apple.driver.AppleUSBMergeNub          5.1.5
com.apple.driver.AppleUSBComposite          5.0.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOAHCISerialATAPI          2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1
com.apple.iokit.IOUSBUserClient          5.0.0
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IONetworkingFamily          3.0
com.apple.iokit.IOAHCIFamily          2.2.0
com.apple.iokit.IOUSBFamily          5.1.6
com.apple.driver.AppleEFIRuntime          1.6.1
com.apple.iokit.IOHIDFamily          1.8.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          220
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          344
com.apple.iokit.IOStorageFamily          1.8
com.apple.driver.AppleKeyStore          28.18
com.apple.driver.AppleACPIPlatform          1.6
com.apple.iokit.IOPCIFamily          2.7
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
Model: MacPro4,1, BootROM MP41.0081.B07, 4 processors, Quad-Core Intel Xeon, 2.66 GHz, 6 GB, SMC 1.39f5
Graphics: NVIDIA GeForce GT 120, NVIDIA GeForce GT 120, PCIe, 512 MB
Graphics: NVIDIA Quadro FX 570, NVIDIA Quadro FX 570, PCIe, 256 MB
Memory Module: DIMM 1, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431
Memory Module: DIMM 2, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431
Memory Module: DIMM 3, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431
Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports
Network Service: Ethernet 2, Ethernet, en1
PCI Card: NVIDIA GeForce GT 120, sppci_displaycontroller, Slot-2
PCI Card: NVIDIA Quadro FX 570, sppci_displaycontroller, Slot-1
Serial ATA Device: HL-DT-ST DVD-RW GH41N
Serial ATA Device: HDS725050KLA360, 500.11 GB
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd110000 / 3
USB Device: Apple Keyboard, apple_vendor_id, 0x0220, 0xfd112000 / 4
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x5a100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x5a110000 / 3
FireWire Device: built-in_hub, 800mbit_speed

Why does my Mac Pro randomly flash a blue screen to both monitors?

For a while now my Mac Pro (Early 2009) has this occasional issue. The system uses a pair of ViewSonic 22" monitors. At random times, both monitors just turn to a solid light blue color. After a brief time (1 to 5 seconds maybe) normal operation returns. The system is still working. Text typed on the keyboard during the 'blue' screen still shows in whatever application I'm in. Just the screen seems to be affected.
I leave the system running 24/7 with only occasional reboots (weeks or months apart). The screens I turn off at night. Most of the time this happens right after the system 'wakes' in the morning (temperature does not seem to be a factor). Although the system is doing this as I'm typing this. The blue screens show up than go away on their own. This repeats from one to ten times before it goes away. Once it is 'done' everything is normal until it happens again.
This 'issue' has been occurring since the original Snow Leopard. But, it also happened with Lion and now still happens with Mountain Lion (just upgraded to 10.8.2).
I am thinking this has something to do with the graphics controller (NVIDIA GeForce GT 120 512MB). But, I've never found any online references to this sort of behavior.
Any comments or suggestions will be appreciated.

The cable connections have (so far) solved this problem for my situation. Even though the monitor's DVI cable was firmly connected to the mini Display port connector, when I touched it the attached monitor would go 'blue' or lose its connection entirely. After disconnecting and reconnecting this junction the monitors would still take a hit on touching the connection. I also checked the connection of the mini Display port connection to the graphics board and could not push it in any further. However, after a second go-round I unplugged this connection to the board and reconnected it. I am certain it was fully inserted the first time. But, connection contacts can oxidize over time and sometimes it may just need to be disconnected and reconnected to 're-wipe' the connections. This effectively cleans them at the point of contact. So in my case I'm thinking it was the connection age that was an issue more than a 'loose' connection. Either way, I haven't had this issue for the past two weeks.

Does Mac Pro boot from extend Device?

A usb mass-device, a RAID card or other storage.
Can we use these to bootup Mac pro?

Probably not, I'm not aware of any PCIe SATA cards that will allow you to boot OSX - RAID or otherwise.
Sonnet's new PCIe cards definately don't work...
Quote, from their site:
"Tempo SATA E4i is currently not compatible with Mac Pro computers. The current cards have been tested to be Mac Pro hardware-compatible. Sonnet is working urgently to post a Mac Pro software-compatible installer to our web site. Check this page for updates."

How to prevent Mac Pro to select USB audio out instead of optical audio out?

I have the following problem: Usually I use the optical audio output of my Mac Pro, but every time I reboot the system, Mac OS X changes the audio output to an usb audio device I've attached to use it with Boot Camp. Is it possible to prevent Mac OS X from changing the audio output automatically every time I start my system?

I have no problems with the audio out (the jack on the back) on my Mac Pro, though I'm not using a high-end stereo and I'm in an office environment so I may not hear subtle noise. If you haven't tried a different cable, you might try that. If your stereo supports it, you can also try the optical output.
As far as it not playing at all, make sure the Output setting in the Sound system preference is set to "line out" (or digital out if you're using the optical jack).

How to stop/disconnect USB device on OSX?

How do I manually stop a USB device that I don't want the OS to recognize or run?
On "About this Mac > More info" page, my Dell Axim X51v Pocket PC is listed as a USB device. I'm having problems using the Parallel Desktop running Windows XP to sync to the Axim because Parallel reports that "USB device you are trying to connect to the virtual machine is being sed by another process." Wait 5-10 seconds, then try to connect the device again. If this does not help, find the application that blocked up the device and disconnect it manually."
AFAIK, nothing on my Mac is using the Axim right now, I have even disabled "Missing sync for Windows Mobile" and stopped it from loading so it must be the Mac OS not releasing the USB link so my Windows XP within Parallel is not able to pick up the Axim right now.
In Windows, there's a "Remove Hardware" option. But I can't find this on OSX after digging around for half an hour, I think I'll get much better advice here, so I really look forward to your help.

You wrote: "But I don't see the device as "mounted" on the desktop, or in Finder."1. In the Finder > Preferences > General tab, is the "Show on Desktop" option for CDs, DVDs, and iPods selected? If not, select that option and see if it appears on the desktop.
2. Is it shown in the Finder Siderbar?
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X

Mac Pro randomly goes into sleep mode

My (mid 2010) Mac Pro, OS X.6.8, randomly goes into sleep mode and I can't wake it, have to power it off and reboot. Just started to the best of my knowledge Friday (Jan 6, 2012) I've had it happen surfing the web in Safari, while working on an illustration in Adobe Illustrator, while running Apple Hardware Test, using 23" LCD connected by HDMI and DVI-D, Disconnected monitor and connected 12" Cintiq (LCD Tablet).
The monitor goes black, says "there's no signal coming from your computer", none of the keys will wake it. I have to hold down the power button until it turns off then power it back up. The time between the sleeps varies, 38min, 1hr 34min, 5min, 2hr 17min, 12min, etc. I disconnected everything (except keyboard, mouse, monitor) still the same. Opened and removed the ATI Radeon HD 5870, and noticed the PRAM battery, replaced it with a new one, thought that fixed it, worked for a long time then it happened again.
Tried Apple Hardware Tester again, it said everything is fine, ran it again an error popped up: 4SNS/1/40000000:Te1S-99.364, wrote it down then it slept.

The next time this happens open your mac and see if there is still a fan running. If so you are not sleeping, you are in a thermal cutoff. Keep you mac cover off.
Now reboot as you always do. Take a look at the fan in your 5870. Is it spinning? If so, try to keep an eye on it and see if you can "catch" it not spinning.
When the fan doesn't start, or if it does then stops, the card will overheat and the machine will go into thermal cutoff. The amount of time is variable.
I speak from experience. I am currently on my third 5870 video card. Both the previous two had this fan problem. The only wrinkle in my theory for you is that I wouldn't expect more that, say, 15 minutes of up time at the most, not hours like you got. But it may be that your card is starting ok, but stops sometime later. I chalk it up to the lousy fans Nvidia uses in the 5x70 cards.
FWIW, if you happen to catch the fan stopped before the machine goes into thermal cutoff you can give it a little nudge with your finger to get it going again.
I recommend one of the various temperature monitors. I use iStat Menus and display some key temps in my menu bar. Of course after going through two of these cards I am a bit paranoid!
Some other temperature monitors:
iStat Pro
Temperature Monitor
Hardware Monitor
Note, after typing all this I also realized you got a AHT 4SNS error. I would run AHT again to see if you get that error again. If so that means "Check Main Logic Board" and you may have a more serious hardware problem than just a video card! So my other recommendation is that when you machine fails again look inside for any lit diagnostic leds. There's some near the dimms but there are others on the board as well.

Windows 7 not forgetting disconnected USB devices, only on one PC, but not others/difer OS

Okay so I've got 3 computers:
1. Asus M5A99X EVO MOBO, Windows 7 Ultimate 64bit
2. Lenovo Ideapad u310 LAPTOP, Windows 8 (just 8)
3. Asrock z87e-ITX MOBO, Windows 7 Ultimate 64 bit and Windows 8.1 Pro 64-bit
This issue only happens on computer 3 under windows 7.
I've got a KVM switch that's supposed to make switching between these computers easier, it's very basic, it has one USB port going into it, and I plug my keyboard into that, my keyboard has a USB port on it that I plug my mouse into.
When I'm on windows 7 on computer 3 the KVM works fine for about the first 4-7 switches between it and another computer. But after that I get "USB Bandwidth Exceeded" popups. I can switch the port it's plugged into the computer and it will start
working again, but that defeats the purpose of having a KVM. And today it even locked up while I was MANUALLY switching the cable between my computers front access ports, because obviously the KVM wasn't reliable (like I switched between computers once every
4-10 minutes), and even BSOD on me.
I've contacted both Asrock and the KVM manufacturer and they both say it's the other's fault.
So I shrank my C: on Comp3 today and installed windows 8.1 on it, and than I spammed the KVM switching like 8+ times, and it never once locked up or complained about me exceeding the bandwidth.
So that means it's now Windows 7's fault, but it doesn't do this for Comp1.
Somehow my new computers Windows 7 is not working right, and I don't know any viable options I can do about it. (comp3 is only about 1-2 weeks old) I've ran all the windows updates I can and it no longer says there are new updates when i run it.
So I need some help about finding out why my Comp3's Win7 isn't forgetting that a USB device is no longer attached, because Win8.1 seems to have no problem with it.
And just sticking with Windows 8 isn't really the solution, as I can't %^#$#!@ stand Windows8/Metro/Tiles/tablet$@!#onmydesktop.
(laptop is a work laptop and i have no choice, but it's modded so I have my start menu back, but still it's annoying anytime I accidentally leave my desktop.)

...because it happens with even just the keyboard.
Even though it all works with Win8.1 have you:
-Tried a different keyboard?
-Tried connecting mouse and keyboard to an external powered hub and connecting the hub to the kvm?
-Tried connecting kvm to powered hub?

Does Mac Pro auto-detect USB graphics card?

Hi
I have Mac Pro with a half dead motherboard. For whatever reason it can't recognize graphic cards. I've tried switching around with other similar graphic cards from other working Mac Pro's with the same specs (early 2008).
If I plug in a USB graphics card, does that start working immediately or does it need to be installed before anything happens?
I realize this Mac Pro is probably going to die on me any day now. But the USB cards are cheap (since work is paying), I can utilize it until it dies, even with weak graphic power.
Thanks.

I doubted there was anything to be done about the internal graphics, that's why I neglected to give other details.
I just realized it was an older Mac Pro than I originally thought.
It's this one with 2x3.0GHz Xeon processors (A1186) (EMC 2113)
http://support.apple.com/kb/SP30
We run Lion on all our machines.
It used to be spending it's days as a Metadata controller for an XSAN 2.0. But we've upgraded to Lion Server, on two Mac Mini's. So it's out of a job until I can get it to give me an image on a screen.
So the card it's not seeing is a NVIDIA GeForce 7300 GT 256MB (probably died).
I tested these
NVIDIA GeForce 6600
NVIDIA GeForce 210 512 MB
NVIDIA GeForce 8800 GT
But none of these appear to be on the list of compatibles for my Mac.
I just need it to work for cheap right now. Buying a internal graphics card is to expensive because it's basically going to be an oversized and overpowered harddrive (maybe subjected to some SMB share experimentations).
Right now I can't even get it on our network because I can't see the MAC Addresses
So no remote controlling either...

Mac Pro randomly disconnecting USB devices

Similar Messages

Maybe you are looking for