RESUELTO:Half a chime then shuts off - boots after a few tries or unplugigng - iMac Intel 24" EMC 2134 and 2211

Half a chime then shuts off - boots after a few tries or unplugigng

Hi guys,

I'm working on a 24" 2008 iMac that has a weird issue where it takes a few tries to get it to turn on. Once it is on, everything seems to work fine, but it takes a few tries to get there. It'll usually do about half of the chime then immediately shut off.

Could this be a power supply problem? I found a similar issue on these forums and the answer was a GPU replace/reflow.

Thanks!

Contestado! Ver respuesta Yo también tengo este problema

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Publicado: 21 de abr. de 2018

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You'll need to pop the display off so you can see the onboard diagnostic LED's LED de diagnóstico del iMac Intel 24" EMC 2134 y 2211 See what happens after you restart the system a few times. Let us know what you find.

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Thanks Dan, so what happens is trickle voltage is good. When I power on, LED comes on and stays solid, LED 3 flashes for a second then goes away and the computer turns off in the middle of the chime.

I have to then unplug power and replug in to try to boot again. Looks like video card according to LED 3 being video related

22 de abr. de 2018 - de KRepair

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iMac Intel 24" EMC 2134 and 2211

Half a chime then shuts off - boots after a few tries or unplugigng

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