Vertical lines and small squares fix?

Question

iMac Intel 27" EMC 2309 & 2374

iMac Intel 27" EMC 2309 (Late 2009, Core 2 Duo 3.06 또는 3.33 GHz) ID iMac10,1, EMC 2374 (Late 2009, Core i5 2.66 GHz 또는 Core i7 2.8 GHz) ID iMac11,1

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Jonny @jonnyfidel

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게시일: 2019년 7월 23일

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Vertical lines and small squares fix?

Hi guys,

my iMac recently froze and when I tried restarting, some vertical lines showed up but the Apple logo still loaded. Once it finished, some squares popped up all over the screen.

PLEASE SEE VIDEO

I would really appreciate some help.

When the little squares show up, the external screen then turns on and is completely white.

So I guess internal display then?

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No, your GPU has failed

Dan 의 2019년 7월 24일

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Dan @danj 평판: 479.8k Self employed contract worker 35 329 971 · Answer 1 · 2019-07-23T17:53:18-07:00

Dan @danj

평판: 479.8k

Self employed contract worker

35

329

971

게시일: 2019년 7월 23일

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What does an external monitor look like? Does it show the same image? If it does the GPU has failed.

If it looks OK then the internal display has failed.

Time for a new GPU card iMac Intel 27" EMC 2374, AMD Radeon HD 4850 Video Card Removal & Repair

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iMac Intel 27" EMC 2309 & 2374

Vertical lines and small squares fix?

Update (07/24/2019)

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Update (07/24/2019)

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