iMac keeps rebooting over & over. Won't fully boot & has lines on LCD

Question

iMac Intel 24" EMC 2134 and 2211

Procesador Core 2 Duo modelo A1225 / mediados de 2007 y principios de 2008 / 2.4, 2.8 o 3.06 GHz

Rep: 13

1

Opciones

iMac keeps rebooting over and over. It won't fully boot and has vertical lines on LCD screen

Sound chirps... Apple logo comes up with loading bar... gets about 1/2 way then reboots. Does this over and over again.

24" iMac 3.06 GHz, 2x2GB (4GB) & NVIDIA GPU (Model A1225)

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mayer @mayer Rep: 685.4mil MacHale Enterprises 3.4mil 1.1mil 2.6mil · Answer 1 · 2017-08-28T17:08:52-07:00

Respuesta Más Útil

Rep: 685.4mil

3.4mil

1.1mil

2.6mil

Opciones

Check the diagnostic LEDs to the left of the RAM slots. Sounds like a failing GPU, which can be replaced or reflowed.

This guide, though slightly different will instruct you on how to replace it: iMac Intel 24" EMC 2267 Graphics Card Replacement

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2 comentarios:

Try starting in Safe Mode by holding down the Shift key on start up.

tried that . nothing . will open it up tomorrow and check LEDs