Hardware :: FireWire Not Working But USB Okay
Jan 31, 2009
I have a 500 gb mybook with firewire and usb. I've been using firewire forever until the other day it couldn't connect. I was terrified that the drive was dead (especially since I just bought a new drive to replace another drive that was on its way out). So I plugged in the USB and it was fine! in theory it wouldn't be an issue, but the problem is that its currently my scratch drive for my video editing and I know that USB isn't as good as firewire. I've been looking around online and it appears that I'm not the only one but so far found no solutions.
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Nov 28, 2010
I finally decided to get a new 27" iMac in order to release the old G4 from it's pain.
What I wasn't aware of tho, was that there's no firewire 400 port on it anymore, which I need for all my peripherals (scanner, hard drives, etc.)
I bought a firewire 800 to 400 adapter, and while everything fits physically, there's no connection. The iMac refuses to find any hardware I connect to it...
I don't have anything that uses firewire 800, so I can't do a proper diagnostic. Thought I'd ask you people if you have any idea what might be the problem?
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Mar 27, 2012
trying to reconnect my ancient Ozonic from M Audio, but firewire won't work... any suggestions to resolve?
Info:
MacBookPro, Mac OS X (10.6.8)
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May 22, 2012
All of a sudden my USB and firewire ports quit working-
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Dec 2, 2007
3 times in the last week, my 400 & 800 firewire ports are not working. I am using a firewire hub with several external drives. I unplug everything, reboot and then they work. anyone know what is going on?
Information:
Power Mac G5
Mac OS X (10.4.2)
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Dec 13, 2007
Both my firewire ports are not working. No signal or connection with external hard drive or video camera. Firewire does not appear under Network Status and is grayed out under Network Port Configurations.
Information:
PowerMac G5
Mac OS X (10.4.11)
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Feb 1, 2008
i got an aluminium imac. however, today when i tried to connect my FW800 Hard drive it did not work and it works by FW400. i connect the same Drive to my MBP using FW800 and it is working flawlessly.
i am still running tiger while the MBP has leopard
i wonder wether the returned My Book Studio has any effects on this. i returened it because i couldnt get it to connect via firewire. i really hate this as i use that lovely FW800 port a lot.
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Feb 28, 2012
It WAS working. I'd bought an iomega fw drive with usb and fw800 ports. I hooked up the drive and it worked and then suddenly I got the message that a drive had been ejected improperly. The fw800 port never worked again -- with any drive or any cable. My apple care has run out. (I've tried these cables and drives on another computer.
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Jul 22, 2008
My 1.2 GHz G4 iBooks Firewire stopped working recently. Have tried zapping pram, reloading OSX etc but no luck. Fortunately USB is still working fine so I can still use my external 500GB hard drive, but I can't download video from my aging Sony video cam.
Any suggestions, other than chucking it and getting a new Macbook/Pro? (Which I plan to do sometime anyway, but would rather prolong the life of my iBook for the moment if possible)
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Feb 27, 2010
The Firewire port on my MacBook has stopped working. Nothing responds and when you look in System Profiler with anything connected the Firewire section shows the spinning indicator for a few minutes before claiming it is unable to list devices. I have also tried all the usual troubleshooting steps including resetting the SMC. But, if I put my thumb under the connected Firewire plug and gently press upwards the port works. It shows in System Profiler and drives mount. I have, of course, tried with different cables to rule that out too.
It clearly seems to be a physical problem with the port somehow. Does anyone have any ideas of exactly what the problem might be, and how easy it is to fix? Maybe a pin just needs bending outwards, or the port loose and can a clip needs pushing back in. If it is likely to be something relatively simple I am comfortable with fixing it myself, but the laptop is a few years old and not covered by AppleCare so I am wearing of an expensive repair bill.
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Sep 28, 2007
I've been using my external burner for sometime now connecting to my G4 with the firewire. When I connected recently by firewire the computer does recognize or mount on the desktop like usual. When I tried the USB connection the burner is recognized and mounts fine. I repaired premissions and repaired the disk from the install disk I also reset the Pram
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Dec 26, 2007
The firewire port on the front of my machine is bad. I can't transfer any kind of data using it. The port on the back as well as all USB ports work fine. Would this need a complete motherboard replacement? Would it even be worth doing? Could I build a dual processing machine or buy one cheaper?
Information:
G5
Mac OS X (10.4.4)
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Jan 31, 2010
My front firewire 400 and 800 ports abruptly quit working. THe backs work fine. I've tried two different video cameras and an external hard drive and according to system profiler none are recognized and none are accessible.
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Jul 4, 2012
I have my Canon GL2 connected to my I-Mac OSX version10.7.3 with a Belkin 800/400 9-pin to 4-pin firewire cable and the computer is not acknowledging the camera or firewire cable. Trying to get footage into Final Cut Pro 10 off mini dv tape.
Info:
iMac, Mac OS X (10.7.3), Final Cut Pro 10
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Jul 4, 2012
I understand this particular issue has been discussed at length on this forum and in other places but none of the solutions have yielded any success for me and I see this is often the case for others. So, I'm posting the question again in hopes that there is an Apple guru out there who has figured this one out. (All relevant specs below.)
Problem: Firewire port was working fine for downloading video from a Panasonic PV-GS320 into iMovie 8.0 on an iMac 10.5.8. Then, suddenly the firewire port was no longer recognized: FireWire Bus: Warning:Unable to list FireWire devices. Maximum Speed: Up to 800 Mb/sec The problem cannot be with the camera or cable as I can swap them over to an iBook 10.4 and the camera and firewire download perfectly there. I have run AHT. Test results show no hardware problems. I've tried all of these
[code]....
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Sep 3, 2010
I have a 2006 Mac Pro and recently my firewire ports stopped working (front and back). I did a little searching around found a suggestion to try resetting the Mac's PRAM and NVRAM by holding the Cmd-Option-P-R keys down while booting. I have tried this numerous times and it doesn't seem to do anything (i.e. the Mac just loads OS X and doesn't re-boot like the instructions say). I'm using a MS Wireless Comfort Keyboard for Mac. Can you reset using a wireless keyboard?
Since I wasn't making any progress with that, I was toying with bringing in the Mac to a genius bar. Never having used the genius bar before - how does it work? Do I bring the computer in and leave it with them? Do they work on it while I'm there? I don't have an extended warranty so do they charge time and materials? I'm wondering if that might get awfully expensive and if I ought to just buy a PCI-X firewire card instead.
Any suggestions?
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Jul 23, 2008
I have a 2006 Mac Pro and recently my firewire ports stopped working (front and back). I did a little searching around found a suggestion to try resetting the Mac's PRAM and NVRAM by holding the Cmd-Option-P-R keys down while booting. I have tried this numerous times and it doesn't seem to do anything (i.e. the Mac just loads OS X and doesn't re-boot like the instructions say). I'm using a MS Wireless Comfort Keyboard for Mac. Can you reset using a wireless keyboard?
Since I wasn't making any progress with that, I was toying with bringing in the Mac to a genius bar. Never having used the genius bar before - how does it work? Do I bring the computer in and leave it with them? Do they work on it while I'm there? I don't have an extended warranty so do they charge time and materials? I'm wondering if that might get awfully expensive and if I ought to just buy a PCI-X firewire card instead.
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Aug 5, 2008
Here's what's happening: We can connect the iBook to the MacBook with a FireWire cable and boot the iBook into FireWire Target Disk Mode (TDM) successfully. The MacBook recognizes the iBook and mounts it as a drive on the desktop. When we try to launch Migration Assistant, it asks us where the old data is located. Specifying another Mac (which is the logical choice) causes it to beachball for about 10 minutes then tell us to connect the two computers with a FireWire cable and boot the other one into TDM, which we've already done. Choosing from a Time Machine backup or other disk causes it to display a blank window, as if it can't detect any other systems.
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Feb 16, 2009
I currently have my second MBP that I got from Macmall and both in a matter of two weeks have had similar issues. The first I managed to get returned and replaced, that is a seperate and complicated story in and of itself. This particular issue started with a boot up sequence that was taking about 5-6 mins. After going through the drill with Applecare thought I could restore using Time Machine. That's when I found out that the FW400 port no longer worked to power my Oyen Digital 250G FW drive. Any thoughts as to what might be the problem? This is my second MBP and Oyen Digital FW drive. I had them both replaced!
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Oct 12, 2009
I just got a Mac Mini (March 2009 model) and want to connect it via Firewire to my Sony TRV-22 camcoder. The camcorder has a Mini DV Firewire jack on it (I think this is called a 4-pin connector sometimes too). But on the Mac Mini, I can't tell if I need a 6-pin or a 9-pin. Can someone point me to a good cable so I can dump some MiniDV tapes into iMovie?
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Jan 21, 2010
I googled it and it didn't help out as much. I have this Shure Mic and it has MIDI input and would like to have some kind of adapter to firewire. I know there is an USB adapter, but i would like to use firewire. It can be firewire 400 or 800. I like to record some songs for GarageBand.
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Jun 22, 2012
can I put firewire connector 400 in the firewire port 800?
Info:
iMac, Mac OS X (10.7.4)
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Sep 25, 2007
i need more firewire ports for my macbook, do they sell firewire hubs?
where can i find them?i googled for it, but it was very confusing, found a lot of USB hubs and some other stuff, but not a FIREWIRE HUB perse.
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Jun 27, 2010
I have a somewhat old Seagate FreeAgent external drive (like this).
It has a switchable port controller, one has a USB2 and eSATA and the other has two FireWire 400 ports [URL].
Now, on the FW controller it says "Dual FireWire 400".
What is Dual FireWire 400? And does it implicate that I can use both ports together somehow and get FW800 by that?
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Feb 8, 2012
I just got the external harddrive "Seagate FreeAgent GoFlex USB 3.0 1TB" with a Seagate FreeAgent GoFlex Upgrade Kabel FireWire 800. I have neither a USB 3.0, nor a Firewire 800 on my white macbook (2008). I already know, that it's possible to use USB 3.0 with an USB 2.0 port, but I would like to use it with the firewire to spare the USB port for other devices. My question: Is there an adapter or cable to use the Seagate Firewire 800 with my Firewire 400 port? I don't know, where and what to look for.
Info:
MacBook (13-inch Early 2008), Mac OS X (10.6.8)
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Aug 4, 2009
i just thought it was compatible because it said it was made for the mac and i really wanted to use my surround sound system. So my dilemma is that it came with a firewire 400 cable and I have a firewire 800 port on my mac mini which i bought recently. I've looked for some adapters and I saw one that said it accepts male firewire 400 6 pin and at the other end is a 9 pin firewire 800. it says its designed to connect your firewire 400 cable so it can be used in firewire 800 ports for newer macs. I'm not 100 percent sure what all that means and I didn't want to go buy something without being sure that's what I need.
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Jun 29, 2009
I'm looking in my Mac Info and it shows this under firewire. FireWire Bus: Maximum Speed:Up to 800 Mb/sec. So does this mean when getting an external soundcard i need one capable of 800 as opposed to 400? [URL]
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Jul 6, 2008
Does anyone know of where I can find PCI-express cards to addon USB and/or Firewire ports to the Jan '08 Edition of the Mac Pros?
I keep running into the cards that are meant for older Power Macs.
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Dec 27, 2008
this year santa brought me a brand spankin' new LaCie 500GB external hard drive. It has both USB2 and Firewire ports. Which one should i use? will one be noticeably faster or is there more benefits of using one over the other?
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Feb 6, 2009
I have a Panasonic PV-GS15 camcorder that has usb and Firewire support.
I Current have a 2007 iMac 24" 2.4 with 10.56 installed, and I have been having tons of problems with OSX recognizing the camera.
It seems I need to reboot the machine, turn on the camera and do my importing, but once I turn off the camera and try to use it again later It requires me to unplug reboot and repeat the process each time.
I have had to disable the isight camera in order for it to even get this far.
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