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모델 A1225 / Mid 2007 and Early 2008 / 2.4, 2.8, 또는 3.06 GHz Core 2 Duo 프로세서

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Mac go's in to boot loop

At first the Mac keeps going in boot loop so I did some troulshooting with a Mac tec support. He said my hard drive was bad. we went in to disk utility and tried to repair, then clean the hard drive nothing worked. So I replaced the hard drive that I bought from you guys. still the same thing. By persistently restarting it I got the formatting done and loaded OS X loaded with a CD-disk.Sometimes it will run a wile like 10 min then it reboots over and over with out a brake in time, just blue then gray then black then gray and black over and over.

I'm thinking power supply Or am I on the wrong track.

If there is any one with the same thing going on i would appreciate some feed back.

I went to what looked like web sight for troubleshooting and did all the steps again nothing.:(

hear is the web sight

https://techtalktone.wordpress.com/2013/...

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Take the frame off and observe the diagnostic LEDs and let us know your findings. Experience tells me this is a GPU issue. It may need reseating or replacing.

iMac Intel 24" EMC 2134 and 2211 Front Bezel Replacement

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Ok yesterday was a little busy.

Today I did as you asked hear id the sequence of the LEDs turned on

All four came by the time the chime sounded

it ran for 20min

123 on 4 off

1 on 234 off

123 on 4off

at the end of the cycle it was

1 on 234 off

12 on 34 off

1234 on

123 on 4 off

1 on 234 off

12 on 34 off

123 on 4 off

1234 on

123 on 4 off

1 on 234 off

123 on 4 off

1234 on

Hope this helps, if it dose not look wright i will do it over

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Is this the part I need to get and do you know were to get it for the best price?

661-4663 Apple Video Card ATI Radeon 2600 HD Pro for iMac 24" Early 2008

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