IMac FW 800 Port Problem & One Solution

I recently had a problem with my 2010 iMac's FW 800 port. I searched these discussions and found a solution that worked for me. I want to pass on the tip. I knew there was a problem with the port because I could access my FW 800 drive using the same cable when attached to another Mac.
This was confirmed when I displayed the "More info..." window from "About This Mac". I am running Mac OS X 10.7.1 Lion and the "More info..." button starts up a System Information app. Click on "System Report". Choose "Firewire" in the Hardware section. If your FW 800 port is not recognized there's be a message in red (I forget the exact wording).
Following directions in this message by den.thred, I reset the SMC > http://support.apple.com/kb/HT3964
That worked for me and I hope it works for others. Thank you, Dennis!
Charles

How curious, in Sytem Profiler or System Informatio>Firewire, what does it report like this...
Maximum Speed:          Up to 800 Mb/sec
OEM ATA Device 00:
Manufacturer:          NewerTech
Model:          0x0
GUID:          0x30E002E0002156
Maximum Speed:          Up to 800 Mb/sec
Connection Speed:          Up to 400 Mb/sec
Sub-units:
OEM ATA Device 00 Unit:
Unit Software Version:          0x10483
Unit Spec ID:          0x609E
Firmware Revision:          0x110
Product Revision Level:
Sub-units:

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2009/2010 iMac Firewire 800 port dead - can anyone help?

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IMac Firewire 800 port not supplying power

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The FW800 port on my iMac suddenly stopped supplying power to bus-powered drives.
The same drives work/mount when I use an AC adapter.
Have thoroughly trouble-shot (shooted?) the hard drives/cables on a different computer.
Tried the SMC reset (unplug for 15-seconds).
Anything else I can try before sending it to Apple?
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iMac
27-inch, Mid 2011
Processor 3.4 GHz Intel Core i7
Memory 16 GB 1333 MHz DDR3
Graphics AMD Radeon HD 6970M 2048 MB
Software Mac OS X Lion 10.7.5 (11G63)

I only use one bus powered drive at a time.
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Genius Bar it is….

Zen Micro "Firmware Problem" - One solution and what to do BEFORE it happ

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Message Edited by RBBrittain on 0-9-2005 0:06 PM

Netbeans 5.0 Executable Jar Problem--One Solution

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Genius! thank.

Firewire 800 port no longer works

my time machine backup for years on my 2.8Ghz iMac Extreme has gone through the FW 800 port to the same WD drive. unfortunately i recently had backup failure issues, but did discover that it still worked through the FW 400 and USB ports (all of which are inputs on the back of the WD My Book). with no other FW 800 port in the house to test, i naturally assumed that the problem was in the notorious WD drive's port. and i wanted my faster backup speed back. so i actually got WD to swap out for a new external drive under warranty (it's 3 years old, i have no idea why they did it, but hey.....). however, on arrival today, the iMac's 800 port now appears to be the initial troublemaker since i still get no response from it, but everything works just dandy through the 400 and USB ports once again.
so now that i know the trouble is actually in my iMac, is there anything i can do except for applecare, which i have on this machne until november 2010? the nearest apple store is literally several hours away as we live in the boonies of upstate new york. so for me, applecare is always the last option. so far i blew compressed air at it just to clean it out, but that's it. if i take the back off, are there any odds that i may find a loose wire or something? i'm not sure if i've ever opened this particular iMac, so i can't remember what it looks like in there, and don't know if it's worth a disassembly.
any advice appreciated!!

It might be something you can address. Have you done either SMC or PRAM reset? At the very least I would do that.
If that doesn't take care of it you can run a Apple Hardware Test to see if there is a hardware problem.
After you have done these actions and it still doesn't work definitely call Apple, the US number is: 800-275-2273. When you call let them know what troubleshooting steps you have taken.
Regards,
Roger

New imac has only one firewire 800 port?

Is there a hub or repeater you can use instead of daisy chaining. Can't figure out why my old imac has two firewire ports and the new imac has one. How are others managing multiple hard drives? I wish to use a hub for my firewire connections. What is the best way. thanks

You can locate Firewire hubs however they are expensive. I have had 3 Firewire 800 external HD's daisy chained together for 3 years that work flawlessly. The drives I have come with 2 FW 800 ports so this is quite easy, there are several top quality external HD's that are similar including:
OWC Mercury Pro line
Lacie Quadra D2 line (this is what i have)
G-Tech G series line
All of these drives have similar specifications and are all high quality products. I think you will find them to be the most recommended on these forums.
BTW your old iMac had 1 Firewire port and 1 Firewire 800 port not 2 firewire ports.
Regards,
Roger

Daisy chaining external hard drives and a video camera from a single firewire 800 port on my imac

I have only a single firewire 800 port on my imac and want to know if I can daisy chain two external hard drives and my video camera, please? If not is there another solution using USB 2?

Are the external HDs self powered or powered by the FW port? If they are self powered there should not be a problem. If they are port powered they may put a strain on the port's power output but I'n not positive on that.

How do I capture tape-based media to my external hard drive? There is only one firewire 800 port on the back of my I mac. The manual says to import tape footage directly into fcpx, but then I lose my external hard drive. thanks for your help.

In FCP X How do I capture tape-based media (hdv clips)- which I want to import-to my external hard drive? There is only one firewire 800 port on the back of my I mac. The FCPX manual says to import tape footage directly into final cut, which works, but then I lose my external hard drive Do I have to import it into an event, then copy it over to an external hard drive? On Larry Jordan's tutorial, he has 3 external hard drives that show up on his monitor WHILE he imports his tape based media. How is that done? I can only get either the camera to appear OR my external hard drive. thanks for your help.

Thanks for your response, but that doesn't solve the problem. Yes, the LaCie hard drive has 2 firewire ports-
I have always done what you suggest (works fine in FCP7), but in FCPX when I do that the camcorder icon
does not appear. It only shows up when I DIRECTLY import the footage via firewire. ????

Daisy chain or FW to each 400/800 port on imac?

I have a 2007 intel imac with 1 FW400 port and 1FW800 port.
I have one 5400RPM 1TB external hard drive to house all my media files (music,pics & movies) with FW 800 or FW 400 ports.
And one 7200RPM 2TB external hard drive to serve as a backup for both my imac & the 1TB hard drive, with FW 800 or FW 400 ports.
Question is what is the best way to connect these without slowing the whole thing down? Connect the 1TB drive to the FW400 port on the imac and the 2TB drive to the FW 800 port on imac....or daisy chain one to the other then to the imac, all using FW 800???
Thanks!
Ivansnikki

Okay, so just to clarify: 1TB (5600RPM) HD <-> 2TB (7200RPM) HD <-> imac?
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Firewire 800 front port problem

I'm using an RME Fireface 800 audio interface, which is a Firewire 800 device. When I hook it up to the front FW800 port on my Mac Pro, it is periodically disconnecting while in use (using Logic, Final Cut Pro, etc.). To be clear, I don't mean that the cable is physically disconnecting, but rather that the interface disappears from the operating system while still attached and powered up.
When I use the rear FW800 port I'm not having this problem, at all.
Can anyone think of an explanation other than perhaps my front FW 800 port is screwed up? Has anyone else had this issue?
Thanks...

Hi John,
Yep, exactly the same problem I had with my Mac Pro's front FW800 connection and the FF800. The problem in the end turned out to be because I had my SSL Duende mini plugged into the rear FW400 port. Have you got any other firewire devices plugged in? The FF800 really dislikes sharing a bus with anything else, which is why I went out and bought a PCIe FW400 card and now all my devices have their own bus and all works just as you'd expect. Hope that helps, cheers.

Hi. I have a Macbook Pro Model 5,5 with one 800 firewire port. I need to create two firewire 800 ports but only have an SD card slot (this is for video interface with 2 cameras). Is this possible or do I have to have an express card slot in order to do

Hi. I have a Macbook Pro Model 5,5 with one 800 firewire port. I need to create two firewire 800 ports but only have an SD card slot (this is for video interface with 2 cameras). Is this possible or do I have to have an express card slot in order to do this?

Hi Jessica,
No, the SD slot will not work, you need an ExpressCard/34 slot.
I do not know if it works with cameras, but with two or more HDs, if the first one has two FW ports, you can "daisy chain" one or more additional HDs from it.

"Which Firewire cable should I purchase to connect a late 2006 Intel-based iMac with a 400 port to a Mid 2010 IMac with an 800 port?"

“Which Firewire cable should I purchase to connect a late 2006 Intel-based iMac with a 400 port to a Mid 2010 IMac with an 800 port?”

To connect both iMacs, you need a FireWire 400 to 800 adapter, and a FireWire 400 cable, so you will be able to connect both Macs

IMac 21.5",3.2 ghz i3. has dead firewire 800 port.

Like it says firewire 800 port does not work. I plug in a known good ext HD. With known good cable. Power light on HD comes on & I can hear it spinning
but it never mounts to desktop. Doesn't show up in Disk utilities either. HD mounts fine if I use usb port. I know FW 800 port on HD & cable are both good
because they work fine on friends 27" iMac. Anybody have any ideas or suggestions. I would really appreciate it.
Thank you in advance
HAPPY HOLIDAYS

I have tryed that. I've also tryed resetting the SMC, & the PRAM. Thank you for the suggestion.
From what I've been reading on this site, it sounds like I don't have any choice but to bring the
iMac into the service center. I am glad I got Apple care. Otherwise I would be screwed. My iMac is just over 1 year old. Once again Thanx for your time & help. Appreciate it. Have a Great Day

IMac FW 800 Port Problem & One Solution

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