Rear Firewire 800 and 400 Ports

I'm having an issue getting a new Maxtor HD to be recognized by my G5. The front FW 400 port works fine, but I can't get the two rear ports to recognize the unit.
I've tried the shutdown and power plug pull technique but that didn't work.
Any other ideas?
Or does this box have to go in for repairs?
??? Thanks

You could try the Official firewire reset
Mike Mihalik, LaCie
"Seems like the FireWire issue needs to be revisited quite often. Here is my often repeated suggestion which appears to clear up many FireWire issues: reset the FireWire ports. Panther has a Finder Preference to show mounted volumes on the Desktop. You must set this for mounted drives to be visible. Please follow these instructions to reset your FireWire port.
http://docs.info.apple.com/article.html?artnum=88338
Here is a summary:
* shut down and disconnect all external drives and peripherals ; make sure nothing is connected to the FireWire ports
* use Apple Disk Utility to repair permissions on your internal boot drive
* shut down and disconnect the AC power from the computer as well as the drives; if laptop, also remove battery
* let sit unpowered and unconnected for 15 minutes
* reconnect AC power to only the computer (battery too if laptop)
* restart computer
* verify that FireWire ports are visible within Apple System Profiler
* reconnect FireWire drive (only one); refresh window within Apple System Profiler to rescan the FireWire bus; confirm that drive is visible
* confirm drive is OK by using Apple Disk Utility and apply First Aid
* repeat for other drives, one at a time "
Post again if it doesn't help.

Similar Messages

FireWire 800 and 400 ports??

What is the difference between these and can you plug any devices into either?

FireWire 800 rocks! It has twice the throughput of FireWire 400. 100 MB/sec versus 50 MB/sec. They do have different connectors, but you can buy adapters. And like the last guy said, a FW400 device will not run at FW800 speeds. I use a FW 800 drive, and it's pretty zippy, but without a RAID config you're not likely to spit out 100 MB/sec of data!
Hope this helps.
PowerMac G4 FireWire 800 Dual 1.25 GHz Mac OS X (10.4.5) 1.25 Gig RAM

My firewire 800 and USB ports on not functioning!

My firewire 800 and USB ports on not functioning, I believe it is an issue the next driver loaders anyone, know how I can reset these?

You don't "reset" a driver (kext). And I don't believe it s a driver problem. However you might try doing a smc and pram reset to see if that "shakes the ports loose". Might work. Couldn't hurt to try.

FireWire 800 and 400

Can I link up two HDD's one FireWire 800 and one FireWire 400 into one FireWire port on my MBP?
Thanks

It is just that easy. I'm assuming you have a FW800 on your MBP? Just do a search on Amazon for Firewire 800 to 400 cables and you'll find some - very inexpensive - that will suit your needs. Oh! Here are some from monoprice - all under $9.
Regards,
Clinton

Mixing Firewire 800 and 400 on an iMac?

I have 2 external FW 400 drives on my late 2011 iMac. I use an 800 to 400 adapter. I've been thinking of getting a new external drive from OWC. The have both 400 and 800. The 800 case has 2 800 connectors and one 400. Does it make sense to mix? Will they all run at the slowest in the chain?
I was thinking of connecting the 800 directly to the iMac using the built-in 800 connection. Then chaining from there using the 400 connection to the other existing 400 external drives. Will I actually get 800 speed on the first drive?
Thanks

I have a mixed group of external drives, and just bought a new OWC Mercury quad interface drive.
The user manual that came with it says:
Note: If you are using FireWire 800 and add a FireWire 400 device to the chain, all devices will be reduced to FireWire 400 performance
I tested this myself, which confirmed it. I set up the following chain, with the first 2 drives connected by FW800, and with a FW400 drive either connected or not connected at the end:
HD ----800-----DRIVE1------800------DRIVE2-------400-------DRIVE3
I booted from my HD and timed the copying of a large file from DRIVE1 to DRIVE2. Although the FW400 drive was at the end of the chain and was never involved in the copying, just having it attached immediately reduced the speed of the file copy from Drive1 to Drive2. The actual speed reduction in practice was about 40%, not 50%.

Daisy chaining firewire 800 and 400 devices

I am considering purchasing a blue-ray DVD recorder that has two 800 ports and one 400 port. My sony video camera has a firewire 400 connection and I am wondering whether that camera cable may be used to import video using my 400 cable connected to the 400 port. One 800 port would be connected to the computer. Or should I purchase a firewire800 to 400 (4 pin) cable and use the second 800 port on the recorder, or go direct from the computer swapping the cables when importing video?

Hi Charles
If your using the Core Duo with 2 400 ports listed in your profile, then you might be better off just connecting the player up 400 and then using the second 400 port for the camera. If however we are talking about a newer iMac, one with a single 800 port then you will want to connect the recorder up 800 and then the camera up 400 to that.
Also see > http://support.apple.com/kb/TA26476
Dennis

Mixing firewire 800 and 400

I have an older iMac (3.06 GHz Intel Core i3). I currently have 3 external firewire 400 drives daisy-chained to it. I use a 800 to 400 adapter on the back of the iMac to convert from 800 down for my drives. I was just looking at OWC and considering a new external. Just wondering if it would be worth my while to pay extra to get a USB3/firewire 800 enclosure instead of a 400. If I hook up the 800 directly to the iMac, then use the 800/400 adapter off the extra port on the back of the first drive to run the other 4 400 drives, will I be getting the 800 speed from the first drive, or will it be downgraded to 400 (speed of the older drives). If I was starting from scratch, it wouldn't be an issue, but since I don't want to loose the other 4TBs+ on my other drives. Hope someone knows the answer. I've heard conflicting stories on how this actually works.
Thanks

Just wondering if it would be worth my while to pay extra to get a USB3/firewire 800 enclosure instead of a 400.
If you think you'll ever upgrade you Mac I'd get the FW800/USB3.0 model so it will be usable at it's intended speed with the new Mac.
OT

Can i use Firewire 800 and 400 at the same time?

I have a HD connected to my 800 port works fine and a GL-2 camera on the 400 and final cut pro won't see the camera. Can I have 2 devices hooked up at the same time?

Yes. But you did not say whether the camera works alone or not at all. In the latter case it could be the camera isn't compatible.
Why reward points?(Quoted from Discussions Terms of Use.)
The reward system helps to increase community participation. When a community member gives you (or another member) a reward for providing helpful advice or a solution to their question, your accumulated points will increase your status level within the community.
Members may reward you with 5 points if they deem that your reply is helpful and 10 points if you post a solution to their issue. Likewise, when you mark a reply as Helpful or Solved in your own created topic, you will be awarding the respondent with the same point values.

Is there a difference between firewire 800 and firewire 400 besides the connectors

is there a difference between firewire 800 and firewire 400 cables besides the connectors?

Speed. 800 is up to twice the speed, and sometimes faster. You can connect the two connectors with a cable that fits both ends, but you will be left with the slowest speed.

Print to Video does not work with Firewire 800 to 400 cable

I need to print video from a Mac Pro with only Firewire 800 port to a Sony DSR 50 with only Firewire 400 port. I'm using a Firewire 800 to 400 cable and I also tried a 400 cable with a 400 to 800 adapter attached. I'm able to control the Sony deck but I cannot get any audio/video to it.
Anyone else have this problem?

When you've got the deck connected and in fcp you go to view: videoplayback, do you see the appropriate apple firewire option available and chosen? And if you hit command-F12 (show all frames) do you see anything? If it doesn't work, try restarting the computer with the deck remaining on.

WD MyBook Firewire 800 and M-Audio FireWire 1814 conflict

I have a big problem with an external HD Western Digital MyBook firewire 800 and a M-Audio firewire 1814.
When I turn on the external HD (connected via firewire 800) the sound card stops to play.
If I don't use the drive everything works, but if I use the external HD the sound stops again.
If I connect the external HD via firewire 400 or usb2 the soundcard works perfectly ...
I think there is a conflict in some driver but I do not have any soundcard (firewire) or any other external drive (Firewire800) to check WHERE is the problem.
I have the same problem in both my Macs (iMac 24 Aluminium and MacBook Pro 17")
Does anybody can help me? Am I the only one with this problem?
Do I have to complain with Western Digital, M-Audio or Apple Inc.?
Thank you for your help!
Carlo

Thank you Chris, I just wonder why Bee Jay can use the HD FW800 with the M-Audio Firewire interface without problems.
I use the ext HD for backup too, but sometimes I need to find something in my backups and I have to turn off the audio interface and copy the files on my internal HD ... then turn off the drive again and turn on the M-Audio ... it's very annoying.
In some forum I read that the problem can be the firewire chipset, but my iMac has the Lucent and the MacBook Pro has the TI (reccomended by M-Audio) ... same problem on both machines.
I did some test:
1) If I use the FW800 external HD and the FW400 with iMovie and my Video Camcorder I have no problem at all. I tried to use the HD at maximum (during a time machine backup I was copying other files and saving the HDV files in the same external HD) and everything works perfectly without loosing a single frame.
2) If I connect the HDV camcorder to the M-Audio interface I cannot even start the capture ... I have to turn off the external FW800 HD.
It looks that the problem is definitely in the M-Audio Firewire driver but unfortunatley the M-Audio e-mail support is only for US customers ... and I'm Italian.
Is there any US customer that has this problem and can insist with the M-Audio support?
Maybe they can solve it in the next release ...
Thank you in advance.

Rear FireWire 800 port not working

After installing Leopard, I connected my TimeMachine external FW 800 drive to the rear FW 800 port, but it was not recognized. I also have an external drive connected to the rear FW 400 port, and it works normally. After some experimentation, I found that if I unplug the FW 400 drive, the FW 800 port becomes active allowing the TimeMachine drive to mount. But any time I use the rear FW 400 port, the rear FW 800 port doesn't work.
The front FW 800 port works normally, and I'm using it for TimeMachine. But I'd like to keep the front ports open for tempory use.
Before calling AppleCare about this, I thought I'd see if anyone has any suggestions about things to try.

Thanks--I tried power cycling (as well as some other suggestions found on Mac sites) but so far, nothing has worked. If I start up with just the FW 800 drive connected to the rear port, it mounts. But as soon as I plug a cable in to the adjacent FW 400 port, the FW 800 hard drive dismounts with the error message that it wasn't unmounted properly. The FW 400 cable is connected to a powered FW hub, but none of the devices connected to the hub are powered on. I also tried another FW 400 cable connected directly to a FW 400 hard drive instead of the hub, but the FW 800 drive still won't mount.
I'll call AppleCare and see what they say--not looking forward to taking the Mac Pro into the shop.

Firewire specs, and 400 to 800 connection

I need to connect an Epson Perfection 4870 scanner to either of my 2009 Macbook Pros.
The scanner has a conventional 400 firewire socket - how many pins?
The Macbook Pros each have an 800 firewire socket - how many pins?
Should I be looking for an adapter or a cable with 400/800 plugs?
Any help with locating the right cable/adapter would be much appreciated.

Yesterday I bought a 6 ft. Belkin FireWire 800/400 9-pin to 6-pin cable from my local Apple Store for just such purposes. (The Apple part number is TP320LL/A)

Firewire 800 to 400 Hub?

This new Mac (which I love) has Firewire 800. My hard drives and scanner has Firewire 400 connections. I bought a cable that connects the 800 port into my 400 port in the hard drive but since the Mac has only 1 800 port I am unable to connect my scanner. Are there Firewire hubs that can plug my other peripherals? There were none at the Apple store and I could not find any on-line. Please advise

You may be able to connect the scanner to the daisy-chain port on the hard drive, if it has one. Or, if the scanner has a daisy-chain port, connect it first and connect the hard drive second.
If your FireWire devices are 400, there are FireWire 400 hubs on the market. Connect the hub to the Mac using that 800 to 400 cable you already have. Connect the FireWire 400 devices to the hub. Be sure to get a hub that has its own power supply. Here's one hub
http://www.amazon.com/Belkin-FireWire-6-Port-Hub-F5U526-APL/dp/B0006BHCEK/ref=sr11?ie=UTF8&s=electronics&qid=1259634281&sr=8-1

Firewire 800 vs 400

I have a Lexar card reader which is firewire. On my older computer, there was no firewire 800 ports however on the Mac Pro, there are. If I were to get a new cable for the card reader, I assume one end would be for the cardreader , 400 and the other end would connect to the firewire 800 port. Now, by doing this would the card reader work faster? In addition, I have external hard drives and am wondering if these two would work faster using the same type of connection.

FW 800 HD cases definitely exist (from the usual suspects - OWC, Newegg, etc.) But you're right, simply using a FW400 to FW800 adaptor cable (they exist too), isn't going to gain you any speed - in a hard drive case or card reader. It's the controller in the device that, uhm ... controls the speed.
As far as card readers - as the1sen mentioned, the speed of the card is just as important as the I/O. I don't think any current card can actually (fully) saturate the I/O transfer speed of FW400, let alone FW800. I have one of the fastest readers around (Sandisk Extreme FW800), combined with one the fastest cards available (Sandisk Extreme IV), and there isn't much difference in transfer speed when using FW400 or FW800.
In this Barefeats test, note the difference when using FW800 and different cards, and the difference when using FW800 vs FW400 with the same card.
http://www.barefeats.com/hard81.html

Rear Firewire 800 and 400 Ports

Similar Messages

Maybe you are looking for