T440s keyboard and external power supply

The issue that I come across is if T440s starts up on battery, as soon as the external power supply is connected, the keyboard stops responding, as well as mouse. if I disconnect external power supply, both keyboard and mouse function as usual.
If start up on external poewr supply, it seems to be OK.
Any suggestions?

Hello Hans -
Taking a look a the PrecisionHD Camera User Guide on pg 9, the 2.5x camera does have a power supply connector just like the 4x and 12x cameras. It does say the power supply connector is For future use, so it doesn't seem like it supports an external PSU at this time.

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Powering down display with external power supply

I am using a 23" display with an old PowerMac G4 from 1998 with an upgraded video card and external power supply.
Is there any way to power off the monitor without powering down the computer? Ideally I'd like this to happen automatically based on my system prefs, but apparently the external power supply precludes this.
As a "workaround", I've created a screen saver that displays a black image. Does this actually save any energy and/or extend the life of my display?
Thanks,
- Michael

Hi Michael,
Welcome to the discussions.
You can install an on-off switch on the power lead to the external power supply (actually, it's safer to have a qualified electrician do this, as you are dealing with a mains power supply). I have this system for my ADC 15" Display, and it works fine.
A black screen saver will not extend the life of your monitor. Screen savers were meant to mitigate the "burn in" effect that happens with CRT displays (and which doesn't happen with LCD displays). If the display is still on, the backlights will still be functioning and they are the finite life component of the LCD display that you need to look after. Also, because the LCD's themselves use so little energy, there will not be much energy saving.
It's more appropriate to "sleep" the display. You can do this (via Energy saver settings in System Preferences) without having to "sleep" the entire computer. This will turn off the backlights and significantly extend the life of the display.
(I'm presuming you are using OS X - you haven't supplied any details regarding your system. :))
Cheers!
Karl

17"display with extern power supply won´t work

Hi there,
my second display a 17"apple studio display (CRT with VGA) just works every now and then. Can´t locate what´s wrong, I already changed the graphic card, no result. In system profiler both displays are listed mostly, also in the display menue on the topbar, though as soon as I tell to recognize the displays only the main display remains. The 17" display has the extern power supply, but it´s a original apple as well. Thought it might be a bad contact, but can´t find anything. Living here in spain I nearly have no chance to check the display by a dealer. I would be grateful for some help, Michael.
G5 Mac OS X (10.3.8)

Try an SMC reset:
http://docs.info.apple.com/article.html?artnum=303319

Fireware Update, NO EXTERNAL POWER SUPPLY! Im stuck!

OK so I just updated my ipod mini, now it says that I need to plug it into the external power supply. only one problem.... I don't know where it is. I lost it a while back and now I cant do anything on the ipod. Computer doesn't even acknowlege its in until i will update it fully by plugging in the power supply! plz help me. thanx

Shaun,
If this is a first gen mini and you updated via a usb connection, then you need to complete the update via the charger. No way around this.
Beg/borrow one, or visit an Apple store?

FireWire / MacBook Pro / External 7200 rpm Drive / External Power Supply / Daisychaining

I would like to use FireWire from my MacBook Pro to an external 7200 rpm drive (Fantom GreenDrive Quad with FireWire capability) that uses an external power supply. Are there any issues with using the external power supply? I read in an archived Mac forum regarding Thunderbolt that there might be (for Thunderbolt, which I'm not using). The archived info wasn't entirely clear to me as to whether it meant not to power up (turn on or plug in) an external power supply for a daisychained device while the MacBook was on or the daisychain had devices in use, say, or whether it meant don't use (daisychain) any devices that use external power supplies.
Once that question is resolved (about FireWire relative to the external power supply for the external hard drive), my next question is, Can I safely daisychain also? If so, what protocol would I use for that, relative to the power supply for each daisychained hard drive?

I have had no issues using daisychained FireWire 800 external drives with leaving the drives turned on, power supplies on, and restarting my MBP. The MBP starts up and sees the drives and runs fine.

Navigator Car Kit External Power Supply

Has anyone figured out a way to fit the Navigator 6 car kit (Palm GPS Car Kit is model 3224NA) with an external power supply? I 'd like to use the unit in other places besides my car.
Post relates to: Treo 700p (Verizon)

On the iPod there are two ways to get power into it. On the dock connector there are power input pins for USB and power input pins for Firewire. USB is +5V while Firewire is often +12V but can be a lot higher. On the Firewire pins you can input over 30V. What I am not sure about is if you can input more than 5V on the USB power pins since USB is standardized at 5V but that doesn't mean the iPod can't accept more on those pins.
Anyway, the automobile connection is very likely wired up to deliver the +12V car battery voltage to the Firewire power pins of your iPod Classic and that is normal/acceptable.
Patrick

LaCie DVD-burner and iBook power supply problem

Hello guys!
I bought recently external LaCie DVD burner (USB). I experienced problem connecting it to iBook. It suppose to be possible to be powered up from USB but only possible way to power up burner only via external power supply. Is there is any possibility to adjust power in iBook so burner will work. I'v checked possibility to use it only powered form USB on MacBook of my friend - it works smooth only from single USB...
Thanks for any suggestions,
Ivan

http://discussions.apple.com/message.jspa?messageID=3006257#3006257
Look here for answer

I just got my iPhone 4 a week ago, and I realized that whenever the battery reaches 55% or less, it automatically shuts down. I have to charge it again to turn it on. I won't turn on unless there is an external power supply to it. Why is this so?

I got my iphone 4 a week ago, but i realized that whenever the battery reaches 55% it automatically turns off and will not turn on unless its connected to a power supply (AC charger or USB on pc). I tried hard resetting it but it did not work. Havent restored it. Any idea why is this so? I hope it has nothing to do with the battery.

Hi,
Not that's not normal and is one of the Problems I was having before Restoring as New...
Just make sure you Sync ALL your important Info... Contacts... Music... Etc... to your Computer...
and then do a Restore as New...
i was a bit reluctant at First, because I hadn't done it before... But it was So Easy and am Really Glad I did...
Cheers,
Here's Another Useful Link:
http://www.apple.com/support/iphone/

Can i use an external power supply to power second graphics card?

hello. i currently have an ATI 5870 in my 2010 Mac Pro. I want to throw a Quadro 4000 in there as well, but i need one more 6-pin power cable. can i plop the quadro into the second PCI slot, buy a PC desktop power supply and just let it sit on the outside next to my Mac Pro, and then just run a 6-pin power cable from the power supply into the Quadro? i realize that the Mac Pro door would could not be placed back on...but i could figure out some way to cover up the opening so that dust doesn't enter.
would this work? anyone tried?

Hi,
Just want to ask a question that is not clear on everything that I have read. If you don't switch off the external power what do you take the risk for? Could you burn something or the card will just continue to work (spin the fan) after you turn off the Mac Pro? Where is the dangerous part?
Thanks!

Help with kernel and possible power supply problem

From 2 days after getting my imac I had my first Kernel restart. Since then I have done everything apple has asked. Ram resets and removing everything from the imac itself To find that it still had a kernel problem. The error messages are Plugnplay or spinlock usually but have also been various ones such as Kerneltask. I have done a full reinstall of the operating system and only installed official apps from apple store, adobe flash and silverlight and next day was a kernel error for plugnplay.
The imac is currently in the shop for a look at but 2 phonecalls back saying they have had no evidence of errors. In fact its perfect for them. The kernel is usually a few hours from turning it on but can go all day fine But they have had the imac almost a week.
So the only thing I can think of is if it works great for them is either they are really lucky or have a different electricity supply/cable. So this leaves me thinking as stupidly as if it is working perfect for them then could it be a surge protector or power supply causing the random crashes? Even something to do with the power lead itself? I am really pulling at strings and going crazy because the only other thing I have been told to do is spend a week at a time just adding one thing at a time till the error shows itself so could be months and months.
i know kernel issues are historically hard to diagnose but any help would be great. At the moment i have a £3000 paperweight on my desk thats only turned on a few hours a day because I have no faith in it.

Hi Joel,
For the external drive issue try resetting your firewire ports.
To do this, shutdown and disconnect the firewire devices from your computer and from each other if there is a chain of them. Now disconnect the power cords from both your computer and from the firewire devices. Wait fifteen minutes. Connect up again and see what happens. The FW ports on Macs have a 'self re-setting fuse" that requires all power to be removed for a period of time for re-activation.
You may also want to try a PRAM reset if that doesn't resolve the issue. Sometimes this can also be implicated in FW problems. Shut down. Hold down the command option p r keys. Now start up, keeping the keys mentioned depressed until the chimes have sounded three times.
Cheers
Rod

Help with using itunes with 4s library after i upgraded to iPhone 5 and computer power supply went

long story hopefully an easy fix....
on wensday my power supply went and had to ship computer across country to Puget Computer Systems as we weren't sure if it was power supply or mobo...luckily it was power supply.
i daily backed up iphone 4s with itunes (10.7) as i do all music manually, playlists, etc. have like 3,000 plus songs, videos, audiobooks, mail aaccts and about 48 apps.
so next day (sept 19th) apple comes out with iOS 6 which i update my 4s to with no problem. I wanted a day to play with it to learn my way around.
next day i wait in line for 8 hours overnite and was #2 in line at apple store for my ATT 32gb white iPhone 5. while at apple store I get my icloud backup which gets all paid music,apps, etc since itunes version 10.3 (i always did both backups so as not to lose my contacts more than anything.
I have other paid stuff that is in library on computer along with audiobooks and about 2700 more songs.
my icloud backup put the playlists on iPhone but not most of the music for them as lots were ripped from my cd's.as i double them up making a copy on iPhone and a copy on itunes.
So I have been using iPhone 5 with no problems just don't have all of itunes library on it. My computer is coming back this week how do I plug in iPhone 5 via USB (which will be seen as new phone even though it has same name) and use my existing iTunes 10.7 library which the backups in iTunes still has iOS 5.1.1 on it?
There must be an easy way of doing it as i don't want to wipe off iphone 5 again as i don't see any purpose my library is all organized perfectly. I know my way around windows 7 pro 64 bit pretty well just don't know what itunes is going to say once it sees "joe's iPhone" again and installs the usb drivers and icon for it. what will it ask in regards to library and how do i use it with previous iOS on it?
Thank you very much for the help as I am going to need it.
yes i broke the cardinal rule of cross posting and apoligize for it just amazed i couldn't find answer via google nor any apple store genius knew it either.

Hi All,
Any help?
No one has any answers here amoungst all this apple knowledge?
Thank you

Can I use the iPod Nano cable and AC power supply with the iPhone?

Just purchased my iPhone 3G. Phone was in my pocket and the AT&T clerk neglected to put the box with the computer cable in the bag with the other accessories.
Until I can pick it up, can I use my iPod Nano cable? The plug seems the same size but I don't want to break anything.
Also, there was no power supply in the box due to the recall. Can I use the iPod AC power supply I bought for the iPod? It is the white brick about 3" by 3" by 1" with a USB socket in the side.
Thank you for helping me with my start-up glitches.

Ps. When you do get the accessories, look for a green dot (on the side where the prongs of the plug come out). If there, fine; if not, your adapter is subject to the recently announced recall of ultracompact USB adapters.

Plugging and unplugging power supply

Can anyone tell me if there is a risk to the hard drive by plugging and unplugging the power supply while the compter is on- like if, let's say, I unplug from the power supply in my office to use my laptop in another room?

None at all.

Zen MicroPhoto and external power sup

Hi!
I recently bought a zen microphoto. But now I need a power supply to recharge it without a pc connected to it. I saw that on the creative on-line shop there are 3 different zen power supply. Which is the right one?
Creative Zen Uni'versal Power Adapter, Creative ZEN Power Adapter or Creative Zen Micro Power Supply?
Thanks
Enrico

It's the Zen Micro Power Adapter. It works with both the Micro and MicroPhoto.

I have a macbook pro...and I'm not able to start it and my power supply light is flashing red and green!

Hi,
I have a macbook pro...and I'm not able to start it since this morning.
It was working well last evening.
Also the power supply light is flashing red and green! What can I do?? Pls help.

You have to take the MBP with the MagSafe charger to the Apple Store
as soon as possible. You may need a new charger.
Best.

T440s keyboard and external power supply

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