Replaced HD with SSD and have flickering horizontal lines on start-up

Question 1

1 crwdns2930801:0crwdne2930801:0

iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

masiku 5 agoDzi 10, 2025

commented masiku 5 agoDzi 10, 2025 crwdns2933505:0crwdne2933505:0 Dan

Question 2

1 crwdns2930801:0crwdne2930801:0

Display screen shows only wall paper (Catalina) no menu bar even on ex

crwdns2934195:0crwdne2934195:0 iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

Kul 25, 2025

answer edited Kul 25, 2025 crwdns2933505:0crwdne2933505:0 Dan

Question 3

0 crwdns2873741:0crwdne2873741:0

How do I take the AC inlet port out?

crwdns2934197:0crwdne2934197:0 iMac Intel 27" EMC 2546 crwdns2933315:00crwdne2933315:0

Din0saur

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Yan 23, 2025

asked Yan 23, 2025 crwdns2933505:0crwdne2933505:0 Din0saur

Question 4

0 crwdns2873741:0crwdne2873741:0

No Display but a little light on boot after replacing ssd.

crwdns2934197:0crwdne2934197:0 iMac Intel 27" EMC 2546 crwdns2933315:00crwdne2933315:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Yan 19, 2025

commented Yan 19, 2025 crwdns2933505:0crwdne2933505:0 Dan

Question 5

1 crwdns2930801:0crwdne2930801:0

Are all A1419s physically compatible?

crwdns2934195:0crwdne2934195:0 iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

N'w 16, 2024

answer edited N'w 16, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 6

0 crwdns2873741:0crwdne2873741:0

Reuse the camera and microphone of an A1419 (EMC 2546)

crwdns2934197:0crwdne2934197:0 iMac Intel 27" EMC 2546 crwdns2933315:00crwdne2933315:0

oldturkey03 814.9crwdns2936485:0crwdne2936485:0

crwdns2931735:0crwdne2931735:0

Nhl 21, 2024

crwdns2931431:0crwdne2931431:0 Nhl 21, 2024 crwdns2933505:0crwdne2933505:0 oldturkey03

Question 7

2 crwdns2873741:0crwdne2873741:0

Inconsistent 2 or 4 LED; sometimes Chimes; sometimes even works!

iMac Intel 27" EMC 2546 crwdns2933315:02crwdne2933315:0

Chrisynd

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Nhl 22, 2024

commented Nhl 22, 2024 crwdns2933505:0crwdne2933505:0 Chrisynd

Question 8

0 crwdns2873741:0crwdne2873741:0

Help identify the pinout of the PSU (A1419, EMC 2546)?

crwdns2934197:0crwdne2934197:0 iMac Intel 27" EMC 2546 crwdns2933315:00crwdne2933315:0

Deling Ren 43

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Ndz 24, 2024

edited by author Ndz 24, 2024 crwdns2933505:0crwdne2933505:0 Deling Ren

Question 9

1 crwdns2930801:0crwdne2930801:0

Install OS on 2012 iMac headlessly?

crwdns2934195:0crwdne2934195:0 iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Deling Ren 43

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Ndz 22, 2024

commented Ndz 22, 2024 crwdns2933505:0crwdne2933505:0 Deling Ren

Question 10

1 crwdns2930801:0crwdne2930801:0

Did I damage the display?

iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Mha 2, 2024

answered Mha 2, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 11

1 crwdns2930801:0crwdne2930801:0

Fans on full when switched off

iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Dzi 19, 2024

commented Dzi 19, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 12

2 crwdns2873741:0crwdne2873741:0

How is xeon support?

crwdns2934195:0crwdne2934195:0 iMac Intel 27" EMC 2546 crwdns2933315:02crwdne2933315:0

Ed Chen

crwdns2942989:0crwdne2942989:0

Kho 8, 2024

answer accepted Kho 8, 2024 crwdns2933505:0crwdne2933505:0 Ed Chen

Question 13

2 crwdns2873741:0crwdne2873741:0

What SSD will work in my late 2012 iMac PCIe 7/17 socket

crwdns2934195:0crwdne2934195:0 iMac Intel 27" EMC 2546 crwdns2933315:02crwdne2933315:0

Les Milton 11

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N'w 8, 2023

answer unaccepted N'w 8, 2023 crwdns2933505:0crwdne2933505:0 Les Milton

Question 14

1 crwdns2930801:0crwdne2930801:0

Dead CPU in a 2012 27" iMac?

crwdns2934195:0crwdne2934195:0 iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

Nhl 31, 2023

answer edited Nhl 31, 2023 crwdns2933505:0crwdne2933505:0 Dan

Question 15

1 crwdns2930801:0crwdne2930801:0

Which LCD screen should I look for?

crwdns2934195:0crwdne2934195:0 iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Sheldon Griffin 11

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Nhl 22, 2023

commented Nhl 22, 2023 crwdns2933505:0crwdne2933505:0 Sheldon Griffin

Question 16

1 crwdns2930801:0crwdne2930801:0

I want to add an eSATA port

iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Ndz 2, 2023

answered Ndz 2, 2023 crwdns2933505:0crwdne2933505:0 Dan

Question 17

1 crwdns2930801:0crwdne2930801:0

27inch iMac ssd upgrade problem with disk clone

iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

mayer 688crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

Mha 2, 2023

answer edited Mha 2, 2023 crwdns2933505:0crwdne2933505:0 mayer

Question 18

1 crwdns2930801:0crwdne2930801:0

Why is my mac so slow?

iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Maw 7, 2023

commented Maw 7, 2023 crwdns2933505:0crwdne2933505:0 Dan

Question 19

2 crwdns2873741:0crwdne2873741:0

Chunklist validation failed from open core, any thoughts?

iMac Intel 27" EMC 2546 crwdns2933315:02crwdne2933315:0

ĐïŋéƧh Kïtçhï

crwdns2931741:0crwdne2931741:0

Maw 15, 2023

commented Maw 15, 2023 crwdns2933505:0crwdne2933505:0 ĐïŋéƧh Kïtçhï

Question 20

1 crwdns2930801:0crwdne2930801:0

Unfortunately, I did not pay attention disconnecting the cable!

iMac Intel 27" EMC 2546 crwdns2933313:01crwdne2933313:0

Dan 490.1crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Mud 16, 2023

answered Mud 16, 2023 crwdns2933505:0crwdne2933505:0 Dan

crwdns2944620:0iMac Intel 27" EMC 2546crwdne2944620:0

iMac Intel 27" EMC 2546 crwdns2944634:0crwdne2944634:0