OS X :: Firewire Audio & Intel CPU Power Management Causes CPU Draw More Power?
Jun 19, 2010
I have found that by plugging in my Apogee Duet firewire audio interface and ONLY WHEN AppleFWAudio was loaded there was a 10c CPU raise that was making my MBP (late 2008) hot!I wanted to monitor the power that was required for Duet to run and to see if the temperature rise was due to that, so:With Apogee drivers uninstalled (just to be sure its not their drivers related, which is notMBP on battery power with System Profiler opened (to monitor the mA required by the computer from System Profiler -> Power)
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Sep 3, 2009
I've got another ongoing thread (2006 Mac Pro Elevated CPU Temps) where I've been attempting to determine why my 2006 Mac Pro was running so much warmer than I recall at time of purchase By sheer luck, I seem to have stumbled on the cause... when I first noticed it, I was running 10.5.7 with the CPUs idling around 130F or so... as noted in that thread, I tried all sorts of things such as cleaning the dust out, reapplying the thermal paste, etc... all of which had no impact... for an unrelated issue, I decided to re-install OS X 10.5 base version and I was shocked to discover my CPU temps back down in the mid-90s F
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Aug 3, 2007
I have an 14" iBook, 1.07 GHz and it won't use battery power. As soon as I unplug it it turns off. It worked fine until I opened it up and swapped in a DVD-RW and a new hard drive (the old one was failing). In the power section of system profiler it shows 98 load cycles and about a 75% remaining capacity. It may or may not be charging - I can't tell. The battery says it's fully charged at 95% and I have no way to drain it and see if it will recharge because the computer won't drink from the battery. I had another 14" iBook battery laying around that I thought worked, but now when I put it in this computer it just sits at 0% then eventually says the battery is dead (the menu icon shows an X through it).
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Jun 3, 2010
This is a problem that's been bugging me now for a while: when I plug in my iPhone or even a measly Usb Flash drive into my Apple Keyboard's USB port, a message appears on my Mac's screen saying: "A USB device can't draw enough power to operate properly. If the device came with a power cord, plug it into an electrical outlet. Otherwise, connect the device to a USB port on your computer." Does anyone know why the Apple Keyboard has a weird indented USB connector?
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Jun 19, 2014
i just recently got a keyboard i had back and plugged it in with a mouse i typically use all the time. when the keyboard was plugged in i got the typical message for "USB device drawing too much power, has been disabled…" i just want to re enable the mouse. it was quite obvious it was the combination of BOTH devices that caused this, but i'd really like to just get the mouse working again. I've Tried Resetting the SMC and ran the diagnostic but nothing has worked.
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Mar 26, 2012
I still have the same G4 Digital Audio which came used but with a clean OS, which I managed to up grade to reach the 10.4.11. Its works great and I love it. I can only imagine using a real Mac Pro 2012. The software is legacy and It will not support the QuarkExpress9 for example. So what if I found and upgraded to the 10.5.8 or the max OS my G4 can handle? Is it worth it?
Info:
G4 Digital Audio, Mac OS X (10.4)
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Aug 23, 2007
I have an old G4 mirror-door that I use as my PVR. It's stuffed with 4 big drives to record media, but it runs all day and sucks tons of power. Plus, it heats up the cabinet like an oven. Is there a piece of software etc. that can help the mac better manage its power consumption? I don't like using the OS X drive sleep option because the drives always go to sleep just when you need them..
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Jul 29, 2010
I have a question about the Dual-Proc MacPro's power management:
If you are only running one or two applications, using one or two cores, is the power management smart enough to put one of the processors to sleep, or into a low-power mode?
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Feb 3, 2010
We have about 10 PowerBook G3/400 computers in our school running OS 9.2.2. They haven't been used in a couple of years and now none of them will boot up. No power. I checked Apple's website and found an article called Power Management Unit. It says to hit the reset button, wait 5 seconds and then hit the power button, but it didn't work for any of them. Does anyone have any ideas?
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Aug 31, 2010
Are there any programs for OS X that let you set an automatic power profile when unplugged from the charger?
Is there nothing that automatically sets the screen to a certain brightness, turns bluetooth and wi-fi off etc., and then adjusts it back when plugged in to the charger?
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May 19, 2009
Cannot use the external keyboard's USB sockets anymore for mouse or printer. Warning says not enough power, use computer's plug. But there are none left. Tried to adjust power management.
No betterment. Can't boot from DiskWarrior CD anymore.
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Sep 12, 2014
I thought you should be able to.Play iTunes audio out through USB to a receiver equipt with USB mode as I can with my iPad Air, but I can,t find in preferences on my 2013 iMac any out put and I get no signal to the receiver/amp. Is it possible? What am I doing wrong?
Info:
iMac (27-inch, Late 2012), OS X Mavericks (10.9.4)
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Mar 15, 2009
Sorry to mention the 'W' word, but wondering if anyone has had this issue.
Basically Apple wireless keyboard works perfectly in Windows, but the Bluetooth power management kills it after just a few seconds, which is extremely irritating. It works after you've 'woken it up' again though.
I can't find anywhere to change this, and no joy with a forum search / Google.
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Nov 26, 2007
I have a great G5 Dual Processor, and would like to add a PCI-X card to give me more Firewire connections. I have been all over the internet and made a lot of phone calls, but no one seems to have a clue as to where such a beast may be found. If not, are there any work-arounds?
Information:
G5
Mac OS X (10.4.10)
Run several Macs at work & home
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Nov 13, 2007
I want to add a second external drive, either 500 GB or 750 GB. It would be partitioned into one partition for cloning, and the other for TimeMachine when I upgrade to Leopard. Currently my external drives are all Firewire. Would there be any significant advantage for me to buy a SATA controller card for my G5 and then go to eSATA rather than Firewire? One online dealer I contacted said that the speed advantage for the SATA for my uses would be minimal, but the possible headaches of eSATA over Firewire could be signifcant. I"m conisedering the 750 GB LaCie d2 Quadra drive.
Information:
G5 Dual 2.0, 2GB RAM
Mac OS X (10.4.10)
also running IMac Intel 2.0/2
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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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Jun 30, 2012
I installed Mac OS X Tiger (10.4) on to my iPod. I tried booting on my Power Mac, which I used to install OS X, but no video. It won't even boot to X on my MacBook! What should I do?
Info:
iPod 2G, Mac OS X (10.4)
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Mar 16, 2009
I was wondering if theres an external similar to the Mypassport that runs firewire 400 or 800?
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Aug 18, 2009
I have a MBP intel that I made a clone off via superduper on my portable firewire hd. I'm trying to get my power mac g5 to boot off of the clone via the portable hd.I've tried checking Startup Disk within the sys pref area but it does not list the portable hd there, although, I am able to see the hd on the desktop (add, del, move files etc)so the portable hd is working fine.I've also tried booting up holding down the Option key but it doesn't work, I think it is because I am using a wireless logitech pc keyboard (no i dont have any other keyboard to use unfortunately).I did a search and apple said to make sure that I update my firmware? Not sure where to find that specific firmware to make this work.
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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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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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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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Nov 13, 2010
I have to get a external drive for backup with Time Machine. Everyone says to get Firewire I guess because its faster...but.Do you need to use the power cord for those? I know some USB drives you can only use the USB cable and it powers it which is handy because I move the drive a lot and I hate connecting two cables....do firewire drives need both cables?
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Apr 15, 2009
I have a WD Terabyte drive that I have used for over a year with no problems. A couple of days ago my roommate went to use it and disconnected the drive from my computer without ejecting it first. He used it with his PC and disconnected it without "safely removing" it from his computer and now it will not mount to my desktop of been seen by PC. Disk Utility sees the device but I get an error when I try to repair the disk or verify the disk. It gives me an "error on exit" message. I really need the 700GB of info on that drive. Don't know what to do next.
Information:
Powerbook G4
Mac OS X (10.4.11)
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Dec 20, 2009
Someone switched off the power to my iMac the other day. Since I've rebooted:a] System Profiler shows no awareness of FireWire ("Unable to list FireWire devices" in red) b] Every boot takes about five minutes, 3+ of which seems to be spent waiting for a response from the FireWire socket (the logs show a 3-minute gap followed by a line that goes something like this:"/usr/lib/exec/hidd: Timeout waiting for IOKit to be quiet")
c] if it's idle long enough to go to sleep, it goes into a kernel panic (the last line in the log before the panic says"kernel[0]: IOPMSlotsMacRISC4::determineSleepSupport has canSleep true")b] looks connected to a], but I can't see any connection with c] (apart from the reference to IO).
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Dec 18, 2006
Step by step instructions for using an ATX 24-pin power supply in a Gigabit Ethernet/Digital Audio Powermac G4 (one way to do it anyway): First, know that to boot the G4s up, you MUST have at least +12V of power going to the G4's pin #22 spot (white wire) even with the computer turned off. This is called standby power (I didn't know what it meant until a few days ago). ATX power supplies generally only have a +5V SB power source which is not enough. You must use some method of getting the +12V to +28V standby power to the G4's pin #22. I will outline the method I used but there are others (ideally get a ATX power supply with +12V standby, but they are not so easy to find). I am typing this on my G4/533 with an Antec SP-500 power supply. Why do this? With an ATI Radeon 9800 256mb graphics card, three hard drives, a DVD drive, a SCSI card, a USB 2.0 card, a USB 2.0 hub with four devices attached, and a newly aquired G4/1.4 Ghz card (which meant two additional fans for cooling control), I figured the original power supply was overextended. So, here's how it can be done:
1. Make sure the ATX power supply you want to use fits your case and has the power cord hookup in the correct position (lower left corner).
2. Make sure the ATX power supply has a long enough motherboard harness, or else you will need to buy an extension (which you may want to do anyway to avoid mutilating the original power supply's wiring harness).
3. About three inches from the motherboard harness connector (same with all future cuts), cut the ATX wire #8 (gray). Tape the end of the gray wire going to the power supply. You don't use it for anything.
4. Cut wire #12 (orange).
5. Remove 1/2 inch of wire insulation from the stub of gray wire coming from pin 8 in the harness connector and from the long orange wire (that used to go to pin 12) that goes to the power supply and solder them together. Cover with heat shrink tubing (which you must put on before you solder) or electrical tape......
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Mar 14, 2012
I just got a 21.5 in. iMac and it's not recognizing my firewire audio interface. I have a 400 to 800 cable from the interface to the iMac and it's simply not picking it up.
Info:
iMac
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Oct 5, 2007
I've been doing some searching and can't find any threads regarding capturing audio (cassette tape) to a mac. Wanted to rip some old school tunes from some tapes and convert to MP3. I connected an old tape deck to my G5 via ADS Pyro A/V Link (RCA audio input to Pyro, firewire connection out to G5), that doesn't seem to work. I've also tried connecting to my iMic USB, but that's not picking up any audio either. I've tried using QT audio recording, iMovie, FCP, and Analogue Ripper with no luck. They recognize the Pyro and iMic, but not picking up audio.
Information:
G5 Dual 1.8Ghz (Q37), 4.5GB ram, Pioneer 112D burner (internal)
Mac OS X (10.4.10)
320GB + 500GB SATA HDDs, Radeon 9600 Pro Mac 256MB, LaCie firewire burner (ext)
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Nov 2, 2007
I am trying to hook up the digital audio output on my cable box to the digital in on my dual 2.0 G5 running 10.4.9, 1 gig RAM. I have HDMI and component video out to monitor, but I use JBL creature speakers and sub for audio.
I have the propper cables and routing, sounds prefs set to digital in, and line out, to go to JBL creatures and first I get no sound at all. If I start AudioHijack and use same input and output settings all I can get is a hissing/clicking sort of sound. Same with using Soundsource and LineIn.
Audio MIDI Setup only shows or giveds me Built-in Audio for selections under system settings and properties for. Ausio Input and output show Master stream grayed out and I selected digital in and Line out for my sources and no change. Both ar set to 441000.0 Hz 2ch-24bit as well.
Information:
Dual 2.0 G5
Mac OS X (10.4.9)
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