Machine turned off randomly and will not turn back on

Question 1

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013

1 crwdns2930801:0crwdne2930801:0

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

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Ndz 21, 2024

answered Ndz 21, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 2

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Replaced hdd with ssd now screen not working correct

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Maw 31, 2024

answered Maw 31, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 3

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Two components dropped from logic board, what are they for?

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Tom 319

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Kho 13, 2024

commented Kho 13, 2024 crwdns2933505:0crwdne2933505:0 Tom

Question 4

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What can I upgrade on my iMac?

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Yan 12, 2024

answered Yan 12, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 5

1 crwdns2930801:0crwdne2930801:0

Logic board change from i5 to i7

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Yan 8, 2024

commented Yan 8, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 6

1 crwdns2930801:0crwdne2930801:0

21.5” iMac A1418 the onboard diagnostic LED's not lit

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Sun 23, 2024

commented Sun 23, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 7

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How to confirm it is logic board of PSU issue?

crwdns2934195:0crwdne2934195:0 iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Tom 319

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Sun 28, 2024

answer accepted Sun 28, 2024 crwdns2933505:0crwdne2933505:0 Tom

Question 8

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Can I put a retina display on my iMac?

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

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Huk 20, 2023

answer edited Huk 20, 2023 crwdns2933505:0crwdne2933505:0 Dan

Question 9

1 crwdns2930801:0crwdne2930801:0

EFI lock and SSD upgrade

crwdns2934195:0crwdne2934195:0 iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Sam 367

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Nhl 12, 2023

answer accepted Nhl 12, 2023 crwdns2933505:0crwdne2933505:0 Sam

Question 10

1 crwdns2930801:0crwdne2930801:0

My WiFi is not turning on it has a red dot nex to it please help fix

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Mha 26, 2023

answered Mha 26, 2023 crwdns2933505:0crwdne2933505:0 Dan

Question 11

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Can I replace glass bezel only

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Kho 1, 2023

answered Kho 1, 2023 crwdns2933505:0crwdne2933505:0 Dan

Question 12

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What other model that is compatible to replace the lcd screen?

crwdns2934195:0crwdne2934195:0 iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Auldz Buzz 23

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Mud 9, 2023

commented Mud 9, 2023 crwdns2933505:0crwdne2933505:0 Auldz Buzz

Question 13

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What is the best size for the blade SSD?

crwdns2934195:0crwdne2934195:0 iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Krista Couch 11

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Mud 1, 2023

answer accepted Mud 1, 2023 crwdns2933505:0crwdne2933505:0 Krista Couch

Question 14

1 crwdns2930801:0crwdne2930801:0

Display data cable replacement for a iMac 21.5 inch EMC 2638

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

oldturkey03 821,5crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Yan 3, 2023

answered Yan 3, 2023 crwdns2933505:0crwdne2933505:0 oldturkey03

Question 15

1 crwdns2930801:0crwdne2930801:0

No power, No LED on, No 12v input from PSU

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

s3eker 23

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N'w 27, 2022

edited by author N'w 27, 2022 crwdns2933505:0crwdne2933505:0 s3eker

Question 16

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Can I upgrade the CPU with a i5 2.7GHz?

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Jacob Mehnert 40crwdns2936485:0crwdne2936485:0

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N'w 21, 2022

answered N'w 21, 2022 crwdns2933505:0crwdne2933505:0 Jacob Mehnert

Question 17

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starts normally but you can see very little of the image

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

francis

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Ndz 17, 2022

commented Ndz 17, 2022 crwdns2933505:0crwdne2933505:0 francis

Question 18

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After installing a SSD, I powered up the computer I get a black screen

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

crwdns2931735:0crwdne2931735:0

Mha 11, 2022

crwdns2931431:0crwdne2931431:0 Mha 11, 2022 crwdns2933505:0crwdne2933505:0 Dan

Question 19

1 crwdns2930801:0crwdne2930801:0

upgrade iMac 2013 by 3770s cpu vs 4770s

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933313:01crwdne2933313:0

Dan 491,9crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Maw 21, 2022

commented Maw 21, 2022 crwdns2933505:0crwdne2933505:0 Dan

Question 20

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Have vertical gray area from top to bottom, rest of screen works fine

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2933315:02crwdne2933315:0

Carl Schultz

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Kho 20, 2022

answered Kho 20, 2022 crwdns2933505:0crwdne2933505:0 Carl Schultz

crwdns2944620:0iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013crwdne2944620:0

iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013 crwdns2944634:0crwdne2944634:0