USB power issue? Getting a warning :(I've been getting this message: "The maximum amount of power that can be supplied to the usb devices has been reached....
回答“My Macpro won't boot up after the chime”I miss read your post. The indicator for your issue is the multiple chimes and not loading. Which means you have failing RAM or RAM board. If you have few RAM installed in it, put one at a time and boot. IF it boots, you found working RAM. When it doesn't boot with any of the RAM installed, you may have dead RAM or you have dead RAM board. Good luck
回答“My Macpro won't boot up after the chime”do you have OS Lion installed? try holding down the option key after the macpro boots up and your screen turn on before the apple logo pops up. if you succeed, you'll get an option of choosing your Mac HD or Recovery HD. IF you can get to that, it's OS corruption so you can go through the Utilities in Recovery side of your HD. IF you can't get to where you get the option to choose which HD to boot from, it's probably your HD hardware. Then you may have to install OS on other HD then try to transfer files from the old one if you're lucky enough to get access to it. good luck
回答“Why do callers hear an echo during phone calls?”something you can try. 1) make sure the carrier have the hardware you're using is registered to you and not your old phone. 2) use a headset w/ mic and make a call to see if there's an echo. -if this is yes, it could be your carrier tower OR your hardware - if no, then it's your hardware. 3) use a speaker phone and see if there's an echo. -if this is yes, it could be your carrier tower OR your hardware - if no, then it's your hardware. if the problem still keep up, or been fixed, let us know! ^_^