Power Mac G5 :: 400 & 800 Firewire Ports Are Not Working?

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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Mac Pro :: Front Firewire 400 And 800 Ports Abruptly Quit Working?

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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Power Mac :: G5 2004 Are The 400 And 800 Firewire Busses Interconnected?

Mar 15, 2012

When I plug in a DV camera to the 400 firewire buss and go to system profile/firewire, the DV camera doesn't show up.....but, when I turn the firewire hard drives off (pull their power) thus disconnecting them from the 800 firewire buss, the DV camera shows up.... 

If I have my firewire external drives connected to the 800 firewire port, and the DV camera connected to the 400 firewire port sometimes (not often) the the dv camera works, most of the time it doesn't..The only way I can get the dv camera to work is to disconnect the firewire hard drives from the computer then all is good in the land of "MAC)..

Info:
G5, Mac OS X (10.3.x)

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OS X :: New IMac - Firewire 800 To 400 Not Working?

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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Intel Mac :: Put Firewire Connector 400 In The Firewire Port 800?

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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Mac Pro :: Only Has 2 400 And 2 800 Ports / Get More?

Apr 21, 2008

The Mac Pro only has 2 400 and 2 800 ports. and I was wondering if there was a way to get more, or split them. I have a lot of externals and an isight, etc. Or maybe a solution is daisy-chaining harddrives, does anyone know anything about this, or how to do it.. I'm afraid to experiment with my data.

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Intel Mac :: Canon GL2 And Belkin 800/400 9-pin To 4-pin Firewire Cable Not Working?

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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Power Mac G5 :: Both Firewire Ports Are Not Working?

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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MacBook Pro :: What Is Dual FireWire 400 And Can It Act As A FireWire 800

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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IMac :: Alu Imac's Firewire 400 & 800 = 400?

Oct 13, 2009

i have the first aluminum imac and wondering if i use both firewire (400 and 800) ports, then both of their speeds will be limited to 400 mb/s. is that true?

i currently use the 400 port for my western digital drive, which is externally powered as well.

i'm planning to add another external hard drive, using the 800 port.

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OS X :: How To Connect FireWire 400 To FireWire 800

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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OS X :: Firewire 800 Or 400?

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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Intel Mac :: Firewire 400 Camera Doesn't Work With 800 Port?

Jun 26, 2012

I have a firewire 400 camera that i'm using for a project and one firewire 800 slot on my iMac (Late 2009). When I plug the camera in, nothing responds no matter what I do - tried resetting the PRAM and SMC. Compare this to my older iMac (Late 2007) which has both firewire 800 and 400 ports. I plug it in and it pops up using the underlying Quicktime controller api on either the 800 or 400 port no problem. So I figured after trying to install a firewire camera library (libdc1394) which I need for my project which didn't work, that it must be a hardware issue, so I took it to the Apple store. The genius at the store booted the OS (Lion) from a firewire drive via 400 to 800 cable (no external power to the f/w drive was used) and then using the spare 400 slot on the hard drive, he plugged (daisy chaining) in my camera and it loaded! So this suggested 2 things - my OS is corrupt or my card can't read straight from my device but why a hard drive in between would change this is beyond me. I came home and installed OS X on to an external USB hard drive and loaded up from it - so this is a fresh version of Lion, there should be no software issues. Plug the camera in to the I/O board of the iMac but load the OS from the external USB hard drive - nothing happens, the profiler doesn't detect anything at all. On a side note, I installed XP and Ubuntu Linux and they also can't detect it, which further suggests its the device or I/O board when interfacing directly with this camera. I've tried providing the devices with external power, daisy chaining 2 cameras, using a usb hub....nothing works. Just for good measure, I tried to boot Lion off the external USB on my older iMac and again, it worked no problem, which to me really narrows it down to the hardware. 

I feel like perhaps the port is a bit dodgy and when the genius daisy chained it, it worked better, but no idea why. Someone said I should get a firewire 400 to usb adaptor

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IMac :: Firewire 800 - Same As 400 Just Better?

Mar 3, 2009

I like to plug my digital camcorder into computer through a firewire 400 cord - will this work on firewire 800? If not what can I do?!

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OS X :: Firewire 800 Vs 400 On External 5400 Rpm Disk

Jun 26, 2009

I'm planning on buying an external firewire 2.5 disk, and i am wondering if there is any real difference between firewire 400 and 800 if the disk is 5400 rpm speed. The reason i am asking is i cant find the passport studio with firewire 800 anywhere here where i live, only the firewire 400 version.

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OS X :: Firewire 400 Vs 800 - External Hard Drive Solutions

May 21, 2010

I have a few macs running Tiger and Leopard and do not have a hard drive that is filled to more than 20GB of the capacity. Looking for external hard drive solutions. I have found a couple of very good drives that only have FW 400 and USB 2.0, one in particular is a older model G-Drive 500GB for $50 that is supposed to be quite reliable. These drives are being blown out due to newer ones have esata and fw 800. Would I see a difference in speed cloning or backing up to a a fw 400 drive even if I get a newer mac that only has fw 800 ports and I use a 400-800 adaptor? The better drives are faster 7200 RM vs the slower 5400 drives, mostly portable that I have been looking at. I have been reading posts that for applications such as mine I would not see a difference. For the most part I use the computers for office related tasks including Word, Excel etc with not much else, although I have some different utility programs. I just want a bootable drive should my hard drive fail. I use Carbon Copy Cloner to clone my drives. My main comp has two drives where the primary is cloned to a secondary, but want a external that I can easily plug into a new mac and clone the hard drive in that Mac to my external drive!

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MacBook Pro :: How To Change The Firewire Speed From 800 To 400

Apr 18, 2012

I have a Mackbook pro and I need to set the firewire speed to use a camera which works with 400 Mhz, in my mackbp the system info sayd 800Mhz.How can I change the firewire speed?

Info:
MacBook
Pro, Mac OS X (10.7.3)

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Mac Pro :: Firewire 800 Card - System Lacks Ports?

Jun 30, 2008

I am not a huge Mac guy, but have to use them at work? Our Mac Pro lacks enough firewire ports for the configuration I need to do. So I guess I need to get a firewire 800 card and it will only be used in conjunction with out AJA unit (HD video production), so if it has one or four ports it doesn't really matter. Anyone have a brand or specific card they prefer?

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MacBook :: Connect External Harddrive With Firewire 800 To Macbook With Firewire 400?

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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MacBook Pro :: FireWire 400 And 800 - Externals Not Shown After Wake Up

Sep 26, 2010

Woke up my laptop from sleep with the 400 port connected to a video deck and the 800 port connected to a raid and a simple external. Power was 'off' on the video deck, power was on for the raid and the simple external HD. Running snow leopard, my externals weren't showing up, no matter what I tried, including power cycles, reboots, unplug/plug, etc. Then for some reason I removed the cable in my 400 (connected to the unpowered deck) and with all else being an original configuration, both my of externals showed up in the finder.

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OS X V10.6 Snow Leopard :: Mixing Firewire 800 And 400 On An IMac?

May 6, 2012

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? 

Info:
iMac 3.06 GHz Intel Core i3, Mac OS X (10.6.8), 12GB RAM, iPhone 3gs, iPhone 4s

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Hardware :: Connect External Bus - Powered Firewire 800 Hard Drive To 400 Adapter

Oct 1, 2008

I'm looking for a way to connect an external bus-powered Firewire 800 hard drive (Glyph Portagig 800) to an iMac which only has Firewire 400 ports, and still powering the drive through just the Firewire connector.

All I've found are Firewire 400 to 800 adapters, allowing Firewire 400 peripherals to be connected to computers having only Firewire 800 ports. I need the opposite of course.
Where can I get such adapters, and without sacrificing bus-power?

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Hardware :: External Firewire 400/800, USB & Esata Hard Drive Enclosure Options?

Nov 6, 2010

I have a 2010 macbook pro with snowleopard on it & have a 7 port ac powered usb hub hooked up to it. If I plug in 1 or more external hard drives into the hub & have them working together/transferring files, will there be a big slowdown?right now my hard drives are in just usb 2.0 enclosures. Would it be worth upgrading their enclosures to firew wire - esata? would I feel a performance difference?

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Intel Mac :: Firewire 800 Port Not Working?

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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Mac Pro :: Usb And Firewire Ports Not Working?

May 22, 2012

All of a sudden my USB and firewire ports quit working-

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Mac Pro :: Firewire Ports Stopped Working / Resetting PRAM And NVRAM

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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Mac Pro :: Firewire Died - Ports Stopped Working - Front And Back

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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IMac :: My FireWire 800 Port Is Not Working?

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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MacBook Pro :: Can Power An External ST91000640NS Using FireWire 800

Mar 16, 2012

I am going to buy a new 17" MacBook Pro soon and I've been doing research on how to customize it when I get it. I want to install my own SLC SSD as the internal drive because it's cheaper and has a longer life expectancy. Because of the limited capacity of SSDs these days, I am also going to be getting an external HDD to keep all my data that would not benefit greatly from SSD speeds, as well as for backups of everything on the internal SSD. 

I wanted this external HDD to meet three criteria:1TB capacity7200rpm speed2.5" size, so that I can use it without needing to plug it into a power socket There aren't many options to choose from that meet those requirements. In fact, I only found one candidate, the “Seagate Constellation.2”. It looks like a good set of specs and Seagate is a reputable hard disk maker I've read, so I'm just about ready to buy one. My only point of concern is whether it can be powered and operated solely over FireWire, or if I would have to use a power adapter. 

So my question is, can the 17" MBP (Late 2011) supply enough watts/volts/amps over FireWire 800 in order to power this Seagate disk? (Sorry for rambling too much) I have looked at the spec sheet and read up on IEEE 1394, i.e. FireWire, and I wasn't able to come up with a definitive answer, and I'm not even confident about how these electronics operate (specifically if the watt/volt/ampere requirements have to be met precisely or if they can go over or under a little, or a lot). I hope someone helps me out here. 

Now here are the relevant specs, from the ST91000640NS product page: 12V start max current0.85A5V start max current0.51AAverage idle power2.95WAverage operating power5.43W According to Wikipedia's article on IEEE 1394, FireWire can supply a maximum of 45W and 30V. Apple's FireWire Ports Specifications article says: Input voltage range8 to 33 VInput power0.3 WOutput voltage range12 V to 30 V (varies by product)Output powerminimum of 7 W per port The disk will be put in an OWC Mercury Elite Pro Mini enclosure, by the way.

Info:
MacBook Pro, Mac OS X (10.7.3)

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Intel Mac :: Firewire  400 Ports Have Stopped Functioning?

Apr 3, 2012

My fire wire  400 ports have stopped functioning, and my 800 is now having problems....I'm getting a protools message telling me there is a problem with my firewire.

Info:
G5 dual processor

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Power Mac G5 :: USB Ports Not Working, IPod, IPhone Not Charging Or Syncing?

Dec 13, 2007

I have had an intermittent problem. Every so often (once a month), my iPhone will not connect to my computer, it does not charge, nor does it show up in iTunes. I checked out 3 different cables, and none work (cable problem eliminated), I tried 3 different iPods, none charged or showed up (iPhone and iPod problem eliminated). I tried both the front and the rear USB ports and nothing ever happens. As far as I recall, this problem just cures itself after a few days. Any idea what I need to have repaired to stop this maddening problem?

Information:
Power Mac G5
Mac OS X (10.5)
2.3 GHz, 8GB RAM, 8GB iPhone, Dual Sony SDM-HS95 monitors, PowerBook G4

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Power Mac G5 :: FireWire Port At Front Of Machine Not Working

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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Intel Mac :: Firewire 400 Doesn't Work

Jun 24, 2012

After several attempts my firewire would not mount on the iMac desktop. After reading the forum, so I reset the PRAM and the SMC. 

NOW, after rebooting the iMac after 3 or 5 minutes the external disk connect with a firewire 400 appear on the desktop with a spcial mention from my iMac " Could not repair the external disk !? 

Even though the disc is NEW and formated on the same machine two hours early!

Specification of my Mac 

Mac OS 10.7.4
iMac Mid 2007
2,4 Ghz Intel core 2 Duo

Info:
iMac, Mac OS X (10.7.4)

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Mac Pro :: Won't Find Firewire 400 Device

Apr 7, 2008

I've attached my external drive to my 17 inch macbook Pro, on the wirewire 400 port, and it shows up under the profiler as as "Unknown device". The same drive looks fine on my iMAC OS version on both machines is 10.5.2.
If I use the USB2.0 port on the drive and connect it to either machine it can be seen by both.

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Mac Pro :: FireWire 400 On A 2.8 GHz Quad-Core Intel Xeon?

Jun 15, 2012

I have just switched to a 2.8 GHz Quad-Core Intel Xeon Mac Pro and I have a Minolta slide scanner that is connected to the Mac by FireWire 400. Now this Mac no longer has a  FireWire 400 connection, only FW 800. Is there a way to still use the scanner, some adapter maybe?

Info:
Mac Pro, Mac OS X (10.7.4), 2.8 GHz Quad-Core Intel Xeon 16 Gig

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