Turn on power supply without logic board connected?

Question 1

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Turn on power supply without logic board connected?

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2389 crwdns2933315:00crwdne2933315:0

Superdirk

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Mha 18, 2020

asked Mha 18, 2020 crwdns2933505:0crwdne2933505:0 Superdirk

Question 2

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repurpose a psu for a project

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2389 crwdns2933315:00crwdne2933315:0

Russ Farren

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Mha 4, 2020

asked Mha 4, 2020 crwdns2933505:0crwdne2933505:0 Russ Farren

Question 3

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My screen is flickering :(! Help!

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

Dan 479.6crwdns2936485:0crwdne2936485:0

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Maw 26, 2020

answered Maw 26, 2020 crwdns2933505:0crwdne2933505:0 Dan

Question 4

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Is this a sign my GPU is failing?

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

Sandeep Ghael

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Maw 7, 2020

commented Maw 7, 2020 crwdns2933505:0crwdne2933505:0 Sandeep Ghael

Question 5

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No boot after replacing GPU

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2389 crwdns2933315:00crwdne2933315:0

Pieter Vanackere

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Maw 3, 2020

asked Maw 3, 2020 crwdns2933505:0crwdne2933505:0 Pieter Vanackere

Question 6

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SSD drive in optical caddy?

crwdns2934195:0crwdne2934195:0 iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

OscarPetré 53

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Kho 19, 2020

answer accepted Kho 19, 2020 crwdns2933505:0crwdne2933505:0 OscarPetré

Question 7

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Is it worth Upgrading? Need Help.

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

Dan 479.6crwdns2936485:0crwdne2936485:0

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Kho 15, 2020

answered Kho 15, 2020 crwdns2933505:0crwdne2933505:0 Dan

Question 8

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Do I have a bad Logic Board?

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

mayer 685.3crwdns2936485:0crwdne2936485:0

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Nhl 29, 2020

answer edited Nhl 29, 2020 crwdns2933505:0crwdne2933505:0 mayer

Question 9

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Internal display acts as "second monitor".

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

Dan 479.6crwdns2936485:0crwdne2936485:0

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Mud 31, 2020

answer edited Mud 31, 2020 crwdns2933505:0crwdne2933505:0 Dan

Question 10

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iMac Shuts Down after First Chime & Apple Logo appears

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

brittcheshire

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Mud 17, 2020

commented Mud 17, 2020 crwdns2933505:0crwdne2933505:0 brittcheshire

Question 11

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iMac mid 2010 21.5" boots with chime but no display

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

John Reilly

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Mud 13, 2020

commented Mud 13, 2020 crwdns2933505:0crwdne2933505:0 John Reilly

Question 12

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Just installed new SSD Kit (IF174-031-3), won't boot MacOS.

crwdns2934195:0crwdne2934195:0 iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

Dan 479.6crwdns2936485:0crwdne2936485:0

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Mud 12, 2020

commented Mud 12, 2020 crwdns2933505:0crwdne2933505:0 Dan

Question 13

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Blank Boot Screen but the Mac still login successfully.

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

Dan 479.6crwdns2936485:0crwdne2936485:0

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Mud 8, 2020

commented Mud 8, 2020 crwdns2933505:0crwdne2933505:0 Dan

Question 14

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High Sierra clean install on new SSD - crashes to question mark

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

Gary Whitehead 11

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Mud 18, 2020

commented Mud 18, 2020 crwdns2933505:0crwdne2933505:0 Gary Whitehead

Question 15

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iMac black screen, and start booting after 30 minutes

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2389 crwdns2933315:00crwdne2933315:0

Dan 479.6crwdns2936485:0crwdne2936485:0

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Mud 5, 2020

commented Mud 5, 2020 crwdns2933505:0crwdne2933505:0 Dan

Question 16

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SSD installation, can't install Mac OS High Sierra

crwdns2934195:0crwdne2934195:0 iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

alberto 11

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Mud 8, 2020

commented Mud 8, 2020 crwdns2933505:0crwdne2933505:0 alberto

Question 17

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Noisy, but not fan related noise

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2389 crwdns2933315:00crwdne2933315:0

Jonas A. 237

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Mud 5, 2020

commented Mud 5, 2020 crwdns2933505:0crwdne2933505:0 Jonas A.

Question 18

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it powers on gets through start up etc but after say 2-3 mins it shuts

iMac Intel 21.5" EMC 2389 crwdns2933315:02crwdne2933315:0

Rich

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Dzi 12, 2020

commented Dzi 12, 2020 crwdns2933505:0crwdne2933505:0 Rich

Question 19

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Upgrading graphic card to GTX 765m?

iMac Intel 21.5" EMC 2389 crwdns2933313:01crwdne2933313:0

Charles Hansen

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Dzi 15, 2020

answer edited Dzi 15, 2020 crwdns2933505:0crwdne2933505:0 Charles Hansen

Question 20

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CPU Fan Full Speed After Disassembly

crwdns2934195:0crwdne2934195:0 iMac Intel 21.5" EMC 2389 crwdns2933315:02crwdne2933315:0

Dan 479.6crwdns2936485:0crwdne2936485:0

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Dzi 20, 2020

commented Dzi 20, 2020 crwdns2933505:0crwdne2933505:0 Dan

crwdns2944620:0iMac Intel 21.5" EMC 2389crwdne2944620:0

iMac Intel 21.5" EMC 2389 crwdns2944634:0crwdne2944634:0