No USB power on wake up to PCIe USB card after 10.6.8 update. how to fix?

Ever since 10.6.8 update my PCIe USB card does not provide power to USB devices after Mac wakes from sleep. I have to restart to get it to work. How do I fix this before I down grade back to 10.6.7?

I did a clean install on a brand new hard drive and found that both Remote Desktop Client 3.5.1 and OX 10.6.8 caused the PCI express to not provide power to USB devices. I have firewire but nothing plugged in to test. I updated each one separatly (under separate install test) and both had the same effect. The only way to fix I have found is to not install either one. I have send Apple a feedback and rang Apple Care to let them know. I don't know when a fix will come through. I am in the process of doing a fresh install of all my software to 10.6.7 (without R.T.C. I might get Lion but I will only install as a V.M. under Paralells 7 which I can use as a test bench from now on.

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See Here > http://support.apple.com/kb/HT1808
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USB quits after 10.4.11 update and can't read external Lacie drive contents

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Still not working.
I ran applejack, then re-installed the combo upgrade for 10.4.11, gave it several restarts, still no USB power or access to external HD. One thing that I notice, when starting up and the grey screen is up, the USB is lit. As soon as the little clock thing starts "running" in a circle, the lights go out. If I unplug then re-plug the USB devices, the lights come on for just a few seconds and then go out. Same results with and without USB hub in both ports. This is our old machine used mostly by kids for iTunes so we must attach the iPod to it or they will be on the new iMac, fresh out of the box!
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Wake from sleep volume extremely loud after 10.9.4 update

Every time I wake from sleep since the 10.9.4 update, my Mac Pro's volume to my speakers (via headphone jack) seems to be insanely loud despite system prefs showing the volume level at middle. Normally I like to keep my speaker's volume high and turn the system volume down, but it seems like the OSX is ignoring the system volume setting after waking up. It reverts to proper behavior when I hit volume up or down on the keyboard. Anyone notice this?

Reset the NVRAM.
NVRAM reset:
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
After resetting NVRAM or PRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information. If issues persist, your Mac's logic board battery (not a portable Mac's rechargeable battery) may need to be replaced. The logic board battery helps retain NVRAM/PRAM settings when your computer is shut down. You can take your Mac to a Mac Genius or Apple Authorized Service Provider to replace the battery on the logic board.

Trouble accessing files on external USB drive after 10.6.8 update

Upgraded to Mac 10.6.8 on my MacBook Pro (I'm not a techie, but the "About This Mac" thingy says 2.53 GHz Intel Core 2 Duo, 4 GB 1067 MHz DDR3 - I assume that means something to somebody). Since the upgrade, I've been having problems accessing data on an external HD connected via USB - there were no issues before the upgrade, but now it's impossible to even navigate to a particular file or subfolder half the time, as the process freezes 95% of the time (every so often I am able to get through, for no obvious reason) - usually I just get what looks like an empty folder and a little spinning thing in the bottom right-hand corner. Sometimes when I do get to a file - say it's a ZIP file - I'll try to unZIP it and the process will hang; if I try to drag it to the desktop and unZIP it there, I can't get it to copy to the desktop, I just get the "copying files" box and a bar that never shows any progress, it just hangs at zero bytes out of whatever it might be.
Also having intermittent issues with another external USB drive, which is the one I use for Time Machine - about one in every five backup attempts is successful, the rest of the time I get a message saying the backup couldn't be performed.
I have two external FireWire drives as well, and I'm having no trouble with either of those - so I'm assuming the problem is USB-related (and 10.6.8 related, since none of this was happening before the upgrade).
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Cheers!

Thanks baltwo - the PRAM tip was helpful. For some reason I still have trouble accessing a few files, I'm putting that down to them being somehow corrupted. Eric, thanks, but I tried using Disk Utility and the communication problems I was having with the drive meant that the repair couldn't be performed. I may try again now that that side of things seems to be running a little more smoothly. Anyway, thank you both!

Keyboard not recognized in USB hub after 10.6.3 update

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I have the same problem. I found I can unplug the keyboard and when replugged, everything works OK.
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ds

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sorry, lost track of this thread for a bit.
you need to figure out which preference files in the main account are causing the problem. the one that i suspected is not it. I don't know which one it is, sorry.
maybe somebody else does.
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in the worst case scenario you can always migrate to a new user account.

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The following document..
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Dec 16 23:33:28 Geoff-Myers-Power-Mac-G3 kernel[0]: USBF: 674.997 [0xf9c000] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 6 of hub @ location: 0x62000000)
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I have another USB card in Slot-4 and, of course, the graphic card (GeForce 6600) in Slot-1.
I've tried this new card in both Slot-2 and Slot-3 with no joy. This is the second NEC card I have tried, thinking the first one was defective.
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Hi drmemory-
Unfortunately it isn't as simple as being compliant with a couple of mutual standards. No matter what platform you are using you will most likely need drivers. Were there any mac drivers on the disk? That is usually a clue about compatibility.
Considering that the System Profiler doesn't see it, perhaps and SMU reset is in order: How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005)
Luck-
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Need a Esata or USB 3.0 PCI-E card that supports Server 2012. ANY card.

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I'd like to get a Esata 6ghz and a few Esata Externals. USB 3.0 is an option if I can't find Esata, although It's slower than I'd like.
I'm open to any ideas.

I ended up getting two of these:
http://www.newegg.com/Product/Product.aspx?Item=N82E16815201051
Below is the review I wrote on newegg.com about the product.
Pros: Contacted Koutech (and 5 other companies) asking what eSATA and USB 3.0 cards they had that would work in Windows Server 2012. A support tech responded that same day. Every other company still hasn't responded 2 months later. The rep said
he hasn't tested any of their cards in Server 2012, but he would start testing and give me a product list in 2 days.
He did exactly that. In less than 2 days I had a list of 18 different PCI-E cards that worked in Server 2012.
I ordered two of these cards (PEU437) for my Dell Servers (T620, & T710).
I have installed the card in the T620 Server, and the card did require the 15 pin SATA power cable in order to work properly (Instructions make it sound optional). My server didn't have any extra 15 pin SATA power cables, I had to buy a 15 pin SATA extension
cable and daisy chain off the SATA CD-ROM drive, but it works just fine.
I'm transferring at speeds over 170mb/s (which is the fastest I've seen on usb 3.0 thus far) My M18X, and MacBook Pro usb 3.0 seem to cap around 100mb/s. I'm going to attribute the extra speed to the ridiculous raid set up, and H710 controller card as I've
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I will definitely purchase future PCI-E cards from them.
And of course NewEgg pricing and delivery speed was top notch.
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Minor issue, and acceptable. Directions should be more clear, but that's a technology limitation not a design flaw.
Other Thoughts: I did a Bare Metal Server Backup of slightly over 1TB of data in 1 hour and 42 minutes. A vast improvement over USB 2.0.

No USB power on wake up to PCIe USB card after 10.6.8 update. how to fix?

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