Lost power to front USB port

With Tiger I could plug any device into my USB port on the front of my dual 2 GIG G5 and it will work. Now with Leopard if the device is not under it's own power, like a portable HD, it is unusable. How can my USB port work fine with Tiger and become unusable with Leopard? I have a lot of portable HD's as I'm a photographer and use the HD's as backups. Any suggestions would be very appreciated.
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Shut down your G5 and unplug everything including the display, FireWire and USB devices as well as the power cord. Let it sit for five to ten minutes completely unpowered. This should reset all the FireWire and USB ports. Plug the display back in, power back in, turn the computer back on and plug your devices back in one at a time. Does this resolve the issue?
-Doug
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Front USB Ports NOT Working

Really need help from the experts here ------ HP Pavilion Slimline s5-1 Desktop Model: H2M46AA (has Joshua mainboard with Intel H61 Chipset) Hard drive crashed and have no original drivers. Did clean install of Win7 SP1 Home Premium. All OK except Other Devices, Universal Serial bus (USB) Controller. Driver cannot be found. After the Win7 install, installed an ethernet driver and then from HP website installed the Original Chipset files. All drivers OK except the above which apparently controls the front 2 USB ports which didn't work. Next, installed all updates provided by Windows Update. Front USB ports still inoperative. They worked before the new Win7. After much research, inoperable front USB ports appears to be a common problem, but none of the provided solutions help (check cables, power down completely, Intel Driver Update Utility, etc.). On my system, the first of 4 Hardware IDs for this device show as: PCI\VEN_104C&DEV_8241&SUBSYS_2ADA103C&REV_02. According to pcidatabase.com, this is identified as: "Texas Instruments USB 3.0 XHCI Host Controller", and thus a possible the problem. The ports are, I believe, USB 2.0 and not 3.0 according to Joshua documentation (http://www.foxconnchannel.com/ProductDetail.aspx?T=motherboard&U=en-us0000525 Also, review of "\windows\inf\setupapi.dev.log" shows there are no files on the drive associated with the above Hardware ID because they cannot be found during driver installation. So question: How can I get these USB ports working -- have installed every recommended HP update for this system. I'm stumped!

You're right, it's just an update of the driver but I think it is specified, you can see theTechnical Reference: ftp://ftp.hp.com/pub/softpaq/sp70501-71000/sp70786.html TITLE: Texas Instruments USB Controller Driver Update
VERSION: 1.12.25.0 REV: A PASS: 2
DESCRIPTION:
This package provides the driver update for the Texas Instruments XHCI
Controller solutions in supported models that are running a supported operating
system.
PURPOSE: Routine
SOFTPAQ FILE NAME: SP70786.exe
SOFTPAQ MD5: 9bd312c3c424161a6c3357d260dcf939
SUPERSEDES: SP59644
EFFECTIVE DATE: March 06, 2015
CATEGORY: Driver-Chipset
SSM SUPPORTED: No
PRODUCT TYPE(S):
Desktops
HARDWARE PRODUCT MODEL(S):
HP Pavilion HPE h8-1xxx PC
HP Pavilion p6-XXXX Desktop (Joshua)
HP Pavilion p7-XXXX Desktop
HP Pavilion Slimline s5-XXXX
HP Pavilion p6 PC
HP Pavilion HPE h9-1xxx Phoenix PC
HP Pavilion Slimline s5-1xxx PC

After a power outage my usb ports on the back of the tower do not recognise the apple usb keyboard upon start up. How do I fix this issue?

I have a Mac Pro 5.1 and after a power outage my usb ports on the back of the tower do not recognise the apple usb keyboard upon start up. If I leave the plug out and then insert the keyboard after start up it works fine. The same happens with the front usb ports. How do I fix this issue?

System.log says USB related message?
Resetting SMC as well as NVRAM could solve the problem.
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM

Can't use front USB port for external Hard Drive

I have had some problems for about the past year with the front USB port on my 2009 13in Macbook Pro 5.5.
As you know, there are 2 USB ports on the left side on a 13inch Macbook pro. The one closest to me (the front one) works fine when I use it with a flash drive. But when I connect my external 7200RPM external drive to it, after about a minute, it ejects then re-recognizes the disk.
I video edit with FCP and use the external as one of my scratch disks.
At first I thought maybe it was the cord or the drive that was messed up. But then I connected my other external drive to this port and the same thing happened.
But when I connected it to the back USB port, everything works fine. I haven't had any trouble. So i make sure it's connected to that port when using the external.
Why would this be happening. It only screws up when using a standard external drive but not flash drives or any other peripherals.
Thanks
Brandon

Exactly what Ogelthorpe mentioned.
I bought a Seagate 500GB 7200RPM and bought an external case from Staples that has a big fancy led to show HD activity. Sometimes it works and sometimes it doesn't.
Tested it on my PC and it works all the time so it got me stumped. Thought it was my MB.
Decided to try another external drive drive on my MB and everything works. So I returned the fancy external enclosure and bought the simple $10 one.
Now everything works fine.
Maybe changing your external case might help you.

I have just recently lost use of 2 USB ports and my isight camera. I have an isight G5 imac that has been working great. I have rebooted, reloaded my OS, and tried PRAM reset. I can use my keyboard, but not other peripherals. Any ideas on diagnostics?

I have just recently lost use of 2 USB ports and my isight camera. My keyboard works fine, but there is not any indication of connections when probing USB in "About this MAC". I have rebooted, executed a PRAM reset, and reloaded my OS, but to no avail I am out 2 of my 3 USB ports. I don't know how to diagnose the issue. Any ideas?
--kevinfromflagstaff

Well, if you've tried different USB cords and devices and have reset your PRAM:
http://support.apple.com/kb/HT1379
And SMC:
http://support.apple.com/kb/HT3964
I'd say your USB ports are shot - since they are an integral part of the logic board, replacing it will most likely be expensive. I'd still go for a definitive diagnosis at the Genius Bar.

Is it safe to use the Belkin power strip with USB ports to charge my iPad? Or is the iPad USB adapter the safest route to take when traveling with device?

Is it safe to use the Belkin power strip with USB ports to charge my iPad?
Or is it better to travel with the Wall Charger provided with iPad?
Concerned about safety of the device. Thanks for your thoughts.

The quickest way (and really the only way) to charge your iPad is with the included 10W USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/
New iPad Takes Much Longer to Charge Than iPad 2
http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30
New iPad Slow to Recharge, Barely Charges During Use
http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
Tips About Charging for New iPad 3
http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
 Cheers, Tom

Front USB Ports

I'm hoping someone might be able to help.
I have an MSI 945P Platinum motherboard with an Aspire X-Navigator case. Running Windows XP. My back USB ports work fine with no problems.
But if I plug anything into the front USB ports, the system freezes. I've checked the connections for both USB1 and USB2 - there is no 10th wire or USBOC connected. But the system still freezes every time I connect anything. Is there anything else I can try, or do I just forget about it & use the back ports? Can anyone help? Thanks.....

okay, i looked again at the usb header
and there was a wire connected to pin 10
so i cut it
started up windows, and amazingly, my front usb ports are now working
i keep plugging in & disconnecting devices - everything i plug in the front ports now work
thanks

Front USB ports connection to K8N NEO4 Platinum

the system im building resides inside a CODEGEN Briza A Series ATX tower (Part Number E6097), my question has to do with how im i supposed to connect the frontal usb ports of the case to my MSI K8N NEO4 Platinum board (MS-7125). the board features 3 yellow colored 9 pin (pin 9 is a key (no pin)) standard USB 2.0 connectors, while my case comes with two frontal USB ports with 2 sets of connectors arranged as follows:
+1 3-pin connector with red, white, green wires labeled "USB 1"
*1 1-pin connector with black wire labeled "GND"
+1 3-pin connector with red, white, green wires labeled "USB 2"
*1 1-pin connector with black wire labeled "GND"
*the black wire is part of the connector itself however is detached from the 3-pin and has its own 1-pin connector, which is "ground"
+the 3-pin features a small triangle at the base of the connector with the red wire.
total pin count for both ports would thereby be 6, as some of you already know this board features a 9 pin arrrangement in its yellow usb connectors.
the manual its pretty clear on the need to make sure those connections are correct to prevent damage to the board or the device attached to those ports,
any takers on this one ?

Quote from: ceckardt on 23-January-06, 05:53:53
the system im building resides inside a CODEGEN Briza A Series ATX tower (Part Number E6097), my question has to do with how im i supposed to connect the frontal usb ports of the case to my MSI K8N NEO4 Platinum board (MS-7125). the board features 3 yellow colored 9 pin (pin 9 is a key (no pin)) standard USB 2.0 connectors, while my case comes with two frontal USB ports with 2 sets of connectors arranged as follows:
+1 3-pin connector with red, white, green wires labeled "USB 1"
*1 1-pin connector with black wire labeled "GND"
+1 3-pin connector with red, white, green wires labeled "USB 2"
*1 1-pin connector with black wire labeled "GND"
*the black wire is part of the connector itself however is detached from the 3-pin and has its own 1-pin connector, which is "ground"
+the 3-pin features a small triangle at the base of the connector with the red wire.
total pin count for both ports would thereby be 6, as some of you already know this board features a 9 pin arrrangement in its yellow usb connectors.
the manual its pretty clear on the need to make sure those connections are correct to prevent damage to the board or the device attached to those ports,
any takers on this one ?
i quote myself on this, and having gone in detail on the boards manual i simply came to the conclusion that those front usb ports shall remain disconnected for the time being

Power speakers with USB port

Before I buy a pair of USB speakers, could I power them using the USB port on the airport express then run the 3.5mm cable to them for the music?
I'm sure this is a daft question, but I thought I'd check.

That is correct, although the Express will power a pair of headphones nicely.
The audio port on the Express is dual purpose as it will work for both analog and optical digital signals.

Where are the front USB ports on the HP Envy 700-210 Desktop?

I bought the Envy 700-210 desktop because it has so many USB ports. However, I can only find 8 - 2 on top and 6 in the back. According to the specifications, there are supposed to be some in the front. Do I have to take something apart to find them?
Thanks.
This question was solved.
View Solution.

VJR-Savannah, welcome to the forum.
Here is the Product Specifications page for the computer. If you look at the picture of the computer in the link, I believe that the front cover below the Red band slides down to expose the USB ports. This is how it works on my Envy 810-135qe.
Please click the "Thumbs up + button" if I have helped you and click "Accept as Solution" if your problem is solved.
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When I plug in external hard drive to airport express it tells me not enough power for the usb port. I have the airport express plugged in to power

Airport express tells me not enough power to usb port for hard drive.
I do have power to Airport express plugged in.

The AirPort Express will not support a hard drive....only a printer.
If you need to connect a hard drive, you need an AirPort Extreme, not an AirPort Express.

Anyone know how to monitor power used on USB Port?

I have an external quickertek usb wireless device that keeps shutting down my Macbook pro. It runs fine for a few days and then locks the entire system up. Quicktek made me a special device with an external power adapter thinking the problem was the USB port being asked for more power than it could deliver but the system is still crashing. I'd like to monitor my power output on that single USB port to see if the new device is really working properly but not sure how to measure power consumption on a usb.
Can anyone tell me if this is possible and if so how?
Thanks,
glenn

cybercrypt13 wrote:
thanks guys, I'm not sure how accurate the actual current power being used is as it seems to always say 500ma but I'll play around with it and see if I can get it to work for me.
glenn
Remember that 500 ma is the limit, so if a device attempts to draw more, it most likely will be current-limited at .5A.
At least it's a start.
This might also be useful:
http://developer.apple.com/documentation/HardwareDrivers/Conceptual/HWTechUSB/Articles/usbimplementation.html
And thanks
Message was edited by: nerowolfe

Brand new ipod nano will work when attached by cable either to a power adaptor or usb port but stops immediately when disconnected, despite being put on charge with different adaptors. Battery indicator remains constantly on lightning flas symbol and whit

My Brand New ipod nano (sold to me two days ago by Apple as replacement for previous ipod nano -15 months old and therefore out of warranty - which had suddenly stopped functioning altogether) will operate only when attached by cable to either power adapter, usb port on my laptop or when playing on a docking station. When detached, it stops playing and screen goes dark and it will not respond to any buttons, despite being charged several times for many hours on different chargers. The battery indicator stays on lightning flash symbol on white background and has only momentarily shown fully charged symbol once !
I am baffled as to why this new ipod has a similar problem to the old ipod.
Is there a virus out there which can have this effect and which I may have picked up on my Pc and have inadvertently transferred to both ipods when sync-ing ?
My PC has Norton anti-virus software.
Any suggestions , please ?

Sounds like the Nano has a faulty battery. You should be able to have Apple swap it out again for you at no cost.
B-rock

Front USB Ports not working on Z97-G45 motherboard

Hey there, after upgrading from Win 7 pro x64 to win 10 x64, I found my front usb 3 ports are not working. I figured it was drivers so I installed the chipset drivers off the MSI website, with no luck. I keep getting Unknown USB Device (Device Descript...

Quote from: Capt.Alberto on Today at 01:21:08hmmm.
i wonder , was it at this temperature since the beginning ?
there's a good chance that you need to ship it back .
your temperature is far from what it should b...

Front usb port died

Early 2011 MacBook Pro 8,1 running Mac OS 10.7.5. Two USB ports on left side (facing screen). Back one (closer to display) works, front one doesn't. Plug iPhone in to sync and charge - phone starts charging but doesn't appear in Finder or iTunes but is available to import photos via iPhoto. What's up? Have I configured something wrong?

More info on my machine:
Model:
MA970LL/A
Description:
Mac Pro MA970LL/A
CPU:
1x Intel E5462 Xeon 2.8GHz Quad-Core Xeon Processors 1600MHz FSB
RAM:
2GB (4 x 512GB) 667 DDR2 ECC FB Memory - Supports up to 16GB
Hard Drive:
1TB SATA 7200 RPM Hard Drive
Optical Drive:
16x SuperDrive w/Dual-Layer Support (DVD+R DL/DVD+-R/CD-RW
Networking:
2x 10/100/1000BASE-T Ethernet (RJ-45) Interfaces
I would be willing to replace it, any advice on what exactly I should look up?

Lost power to front USB port

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