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Bluetooth and Mac Pro problem

39855 Views 135 Replies Latest reply: Dec 5, 2008 12:45 PM by direwolf8 RSS
  • bosmacs Calculating status...
    Currently Being Moderated
    Sep 22, 2006 7:37 AM (in response to shive)
    After reading a number of similar discussions here and elsewhere, I was prompted to more closely examine the antenna leads in my box. There are supposed to be four leads, labeled 1, 2, 3, and 'BT'. In my box, 2 and 3 were the only ones clearly labeled; an unlabled one was attached to the bluetooth module, 3 was attached to the lower Airport connector, another unlabeled one was attached to the upper Airport connector, and 2 was unconnected (tucked behind the motherboard). I disconnected the unlabeled lead that was connected to the Airport and moved it to the bluetooth module, leaving the lead formerly connected to bluetooth disconnected. I then attached lead 2 to the open Airport connector (this lead was significantly shorter than the others, and only just reached the upper Airport connector). The difference is dramatic; Airport works as well as before, but bluetooth now works as it should. Before, moving my mouse more than 3ft. from the box made it difficult to move; past 4-5ft. it became practically unusable. Now I can use the mouse effectively from across the room. It appears to me that the antenna leads were mislabled or misconnected. (Note: the antenna wires are supposed to run behind the motherboard to a plastic area on the underside of the box where the signal can escape the otherwise aluminum case). I hope this info may be of use to some of you experiencing similar problems.
    Mac Pro, Mac OS X (10.4.7)
  • Jim Kohn Level 1 Level 1 (15 points)
    Currently Being Moderated
    Sep 22, 2006 8:54 PM (in response to bosmacs)
    Someone else on the MacRumors discussion tried this and it worked for them too. Nice find! It appears that, if the wires were properly labelled, they would get set up as follows:
    BT: disconnected
    1: to bluetooth module
    2: upper airport connector
    3: lower airport connector.
    I'd love to know if this works for anybody else before I call the Apple Tech back here to reinstall the internal bluetooth module in my MacPro. I'm using a usb bluetooth adapter plugged into the back of my Cinema Display. It works fine, but I'd sure like to free up that usb port and use the internal BT module that I paid for!
    MacPro, Mac OS X (10.4.7), 2X3 GHz, 4GB, 30"Cinema Display...
  • spconlon Calculating status...
    Currently Being Moderated
    Sep 23, 2006 1:06 AM (in response to Jim Kohn)
    Jim,

    I got my Bluetooth MM & Keyboard working fine with those instructions. t

    The Airport, however, I'm unable to report on as I don't have anything set up yet to test it...

    Luck

    Sean
    Mac Pro, Mac OS X (10.4.7)
  • frantzmuller Calculating status...
    Currently Being Moderated
    Sep 23, 2006 3:07 AM (in response to Jim Kohn)
    Where do these wires (BT, 1, 2 3) can be found on the mother board ?
    Is it necessary to dismount the MacPro to access the wires or do these wire can be accessed directly ?
    Mac Pro, Mac OS X (10.4.7)
  • borgusio Calculating status...
    Currently Being Moderated
    Sep 23, 2006 9:02 AM (in response to Jim Kohn)
    I'm experiencing problems both with airport and bluetooth.
    My cable are set as follows:
    BT: bluetooth
    1: Upper Airport
    3: Lower Airport
    2: I cannot find it!!! where it is? :o
  • Jim Kohn Level 1 Level 1 (15 points)
    Currently Being Moderated
    Sep 23, 2006 9:26 AM (in response to borgusio)
    All four of these thin black wires are "tucked" behind the motherboard. They emerge from behind the motherboard just above, and very close to, the bluetooth and Airport modules. If they are not visible, try sliding a finger behind the motherboard to find them. If it's hard to find it's probably because the wire has just fallen further behind the motherboard. Where there are three wires there should be the fourth.
    MacPro, Mac OS X (10.4.7), 2X3 GHz, 4GB, 30"Cinema Display...
  • spconlon Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 23, 2006 9:39 AM (in response to Jim Kohn)
    I was really hoping switching these antennas around would not only solve my BlueTooth issues but also take care of the 'crackling' noise I'm getting through my sound outputs....my BlueToothe is working great, but the noise is still there unfortunately.

    I would be interested to know if anyone else is having these 'crackling' noises. It's audible even when I mute or sleep my Mac. Basically, if you want to see if you have the noise, put your Mac to sleep, turn up your volume on your amplifier and listen...heh.

    Take care...

    Sean
    Mac Pro, Mac OS X (10.4.7)
  • seh2000 Level 1 Level 1 (10 points)
    Currently Being Moderated
    Sep 24, 2006 12:31 AM (in response to Jim Kohn)
    Sorry for asking, but do I have to take the MBP apart to get to the wires? As if then I void the warranty...
    MBP 15" 2.16, Mac OS X (10.4.7), SN#: W86164CPVWX
  • Jim Kohn Level 1 Level 1 (15 points)
    Currently Being Moderated
    Sep 24, 2006 7:49 AM (in response to seh2000)
    Please note: these ideas are not from Apple but from various individuals sharing their thoughts in an open forum. In this particular forum, the subject is the bluetooth range problem with the new desktop Mac Pro, NOT THE MACBOOK PRO.
    MacPro, Mac OS X (10.4.7), 2X3 GHz, 4GB, 30"Cinema Display...
  • Jim Kohn Level 1 Level 1 (15 points)
    Currently Being Moderated
    Sep 24, 2006 11:39 AM (in response to Jim Kohn)
    This solution seems to work for everybody who has tried it. How simple!
    MacPro, Mac OS X (10.4.7), 2X3 GHz, 4GB, 30"Cinema Display...
  • Jim Kohn Level 1 Level 1 (15 points)
    Currently Being Moderated
    Sep 24, 2006 11:40 AM (in response to bosmacs)
    After reading a number of similar discussions here
    and elsewhere, I was prompted to more closely examine
    the antenna leads in my box. There are supposed to be
    four leads, labeled 1, 2, 3, and 'BT'. In my box, 2
    and 3 were the only ones clearly labeled; an unlabled
    one was attached to the bluetooth module, 3 was
    attached to the lower Airport connector, another
    unlabeled one was attached to the upper Airport
    connector, and 2 was unconnected (tucked behind the
    motherboard). I disconnected the unlabeled lead that
    was connected to the Airport and moved it to the
    bluetooth module, leaving the lead formerly connected
    to bluetooth disconnected. I then attached lead 2 to
    the open Airport connector (this lead was
    significantly shorter than the others, and only just
    reached the upper Airport connector). The difference
    is dramatic; Airport works as well as before, but
    bluetooth now works as it should. Before, moving my
    mouse more than 3ft. from the box made it difficult
    to move; past 4-5ft. it became practically unusable.
    Now I can use the mouse effectively from across the
    room. It appears to me that the antenna leads were
    mislabled or misconnected. (Note: the antenna wires
    are supposed to run behind the motherboard to a
    plastic area on the underside of the box where the
    signal can escape the otherwise aluminum case). I
    hope this info may be of use to some of you
    experiencing similar problems.


    Great find! It's worked for everybody who's tried it. Thanks!
    MacPro, Mac OS X (10.4.7), 2X3 GHz, 4GB, 30"Cinema Display...
  • plugues Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 24, 2006 3:48 PM (in response to Jim Kohn)
    are these bluetooth problems at all related to the right-clicking issues many users (myself included) have reported on the wireless mighty mouse? right-clicking is a burden, a hard task to accomplish. sometimes you have to completely remove your hand from the mouse and use a stick to poke on the right side of the mouse, and only then it will work. bug or feature?
    mac pro, Mac OS X (10.4.7)
  • GATTMAN Calculating status...
    Currently Being Moderated
    Sep 25, 2006 2:32 AM (in response to plugues)
    I just checked and re allotted the antenna leads on my MacPro. My original antenna layout WAS as follows: 1: Upper Airport, 3: lower Airport, Unmarked: BT and 2 was unattached however the end of the lead had a plastic tube on it. Now my antenna layout is as follows; Unmarked is now unattached, covered with the plastic tube that was on 2. 1 is on the BT module, 2 is on the upper Airport and 3 is on the lower Airport. Everything is working great so far, my BT MM is tracking smoothly. and My keyboard, as always is fine. I'll see how it all goes.
    MacPro 2.66GHz, 20 inch Apple Monitor, MacBook x 2 & 17inch G5 iMac, Mac OS X (10.4.7)
  • Kirk McElhearn Level 2 Level 2 (155 points)
    Currently Being Moderated
    Sep 25, 2006 7:28 AM (in response to Jim Kohn)
    I can confirm that this works for me too.

    I got a call from a technician who was planning to come tomorrow to replace the BT module. I live in rural France, and AppleCare here is on-site; the guy would have had to drive about 5 hours round-trip to come and do the job.

    So I pointed him to this thread, and told him I would be happy to try and make the change, if he agreed (so my guarantee wouldn't be voided). He walked me through it, explaining where the cables are (they aren't that easy to see, at least if you don't have AirPort, which I don't - those cables aren't connected). I made the change, rebooted, turned on the wireless MM and it works fine.

    We're still going to wait a few days to see if anything happens - at first, it was working ok, but after a day or two started having tracking problems.

    To sum up, somehow Apple's assemblers have inverted the labelling of two of the cables, the BT one and the one that is unlabeled. This is a serious problem, not so much because of usability, but because of what this foolish mistake is costing them. Some people have said that Apple exchanged their Mac Pros, others that they changed the BT module and/or antenna. The fix is simply one of correcting human error.

    Kirk
  • borgusio Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 25, 2006 8:05 AM (in response to Kirk McElhearn)
    I don't have a bluetooth device, at the moment, I tried to change the antennas, the problem still remain with airport...
    My question is:
    anyone solved the issue with airport, moving the antennas?
    Or it applies only to BT?
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