iMac USB ports aren't providing enough power... help!

[ero87]

Hey friends,

My iPhone won't sync (it restarts halfway through). Neither will my camera, or my little USB flash drive. Also, my external iSight camera hasn't been working.

So basically, all my ports seem like they can't provide enough power. It works for a little after a restart, and for a little longer after i reset the VRAM, but it's still a consistent problem. Does this mean my logic board is fried, or something? Should I be worried? Is there a solution?

Thanks so much

 

[forrestmc4]

A USB device is only allowed to draw 500mA at peak. Check your system profiler, when you select the USB bus it should say 500 next to bus power. To be honest with you though, this sounds like a hardware problem that may involve replacing your USB bus.

 

[ero87]

A USB device is only allowed to draw 500mA at peak. Check your system profiler, when you select the USB bus it should say 500 next to bus power. To be honest with you though, this sounds like a hardware problem that may involve replacing your USB bus.

hmm it does say 500 next to bus power. maybe this isn't a power issue then?

 

[Zawamura]

Try using a AC powered US-hub. might work xD

 

[forrestmc4]

Well at least the power issue seems resolved. FYI in the future, when OS X notices that a device isn't getting enough power to function properly, it will let you know with a warning message. This most commonly occurs when using unpowered USB hub. But what confuses me about this is exactly what could have happened to your USB hardware. Is your computer under warranty? Do your other ports work?

 

[ero87]

well i just bought a AC-powered USB hub, connected my iPhone to that, and tried to install the new 1.1.2 thing. My iPhone reset in the middle of the process, and I got this error message.

Maybe it's a problem with my iPhone? But my iSight isn't working either...

(i really appreciate all of your help, btw )

 

[forrestmc4]

Time to throw in the towel my friend. Sounds like the ports on your logic board assembly are fried.

Here is the link to a possible replacement part:http://www.mac-pro.com/Mac-Pro-Online-Store/Model-M9250LL-A-1-8Ghz_2

Here is the page for your local Apple store:http://www.apple.com/retail/providenceplace/week/20071111.html

Go talk to a Genius.

Good luck.

 

[ero87]

Time to throw in the towel my friend. Sounds like the ports on your logic board assembly are fried.

Here is the link to a possible replacement part:http://www.mac-pro.com/Mac-Pro-Online-Store/Model-M9250LL-A-1-8Ghz_2

Here is the page for your local Apple store:http://www.apple.com/retail/providenceplace/week/20071111.html

Go talk to a Genius.

Good luck.

ugh, i hate to hear "throw in the towel"... my computer's is only 2 1/2 years old, it shouldn't be breaking.

i'm not gonna buy a whole nother logic board, meh.. .any other ideas?

 

[forrestmc4]

There may be hope...

Did this start after you upgraded to leopard? You might want to try downgrading to Tiger (assuming that you still have the disks) to see if that resolves the problem. You never know, it might just work. However, you don't have any way to back up your stuff before you downgrade other than burning DVDs. What a great way to spend the weekend before thanksgiving break.

 

[ero87]

There may be hope...

Did this start after you upgraded to leopard? You might want to try downgrading to Tiger (assuming that you still have the disks) to see if that resolves the problem. You never know, it might just work. However, you don't have any way to back up your stuff before you downgrade other than burning DVDs. What a great way to spend the weekend before thanksgiving break.

thansk for the idea, but i was having similar problems in Tiger. I had actually hoped Leopard would help it out...

 

[admiraldennis]

my computer's is only 2 1/2 years old, it shouldn't be breaking.

that's the funniest thing i've heard all day

 

[ero87]

that's the funniest thing i've heard all day

why is that? Should I be expecting my computer to break after 2.5 years? I wouldn't think so.

 

[forrestmc4]

that's the funniest thing i've heard all day

I don't know what this guy is talking about. While it wouldn't shock me to have a 2.5 year old HD fail, having a logic board integrated part like a freaking USB port fail does.

In other news: I am out of ideas. Maybe ask some of your school's IT people??

 

[ero87]

I don't know what this guy is talking about. While it wouldn't shock me to have a 2.5 year old HD fail, having a logic board integrated part like a freaking USB port fail does.

In other news: I am out of ideas. Maybe ask some of your school's IT people??

I appreciate your help, and everyone's help. I'm just going to live with it, I've tried all I can... not a huge deal, i'm still loving Leopard