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iMac Intel 21.5" EMC 2389 Mid 2010 Repair Forum

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iMac Intel 21.5" EMC 2389 Mid 2010 questions

clear

3 Answers

Why is my iMac's screen showing weird coloured squares?

iMac Intel 21.5" EMC 2389 Mid 2010 3 Answers

Theo Grefalda 921

Commented

Sep 25, 2026

commented Sep 25, 2026 by Theo Grefalda

1 Answer

LED #4 Off With Replacement Display, Need Advice on Cable/Connector

iMac Intel 21.5" EMC 2389 Mid 2010 1 Answer

DanJ 502.8k

Commented

Sep 3, 2026

commented Sep 3, 2026 by DanJ

4 Answers

iMac Black Screen, Startup Chime Audible But No Display

accepted iMac Intel 21.5" EMC 2389 Mid 2010 4 Answers

mike haines

Commented

Dec 16, 2025

commented Dec 16, 2025 by mike haines

6 Answers

Best CPU AND GPU Upgrade for my iMac

accepted iMac Intel 21.5" EMC 2389 Mid 2010 6 Answers

contact

Answered

Oct 29, 2025

answered Oct 29, 2025 by contact

2 Answers

How can I test the Power Supply (voltage values)?

accepted iMac Intel 21.5" EMC 2389 Mid 2010 2 Answers

testtst

Answered

Oct 3, 2025

answered Oct 3, 2025 by testtst

7 Answers

Can I upgrade My CPU to Intel i7?

accepted iMac Intel 21.5" EMC 2389 Mid 2010 7 Answers

ionlyhaveoldmacs

Commented

Aug 31, 2025

commented Aug 31, 2025 by ionlyhaveoldmacs

0 Answers

During boot mac shows halfway on loading then does not progress

unanswered iMac Intel 21.5" EMC 2389 Mid 2010 0 Answers

mike 31.4k

Commented

Aug 16, 2025

commented Aug 16, 2025 by mike

5 Answers

Upgrading CPU from i3 3.06 Ghz to i5/i7-S version 82W

accepted iMac Intel 21.5" EMC 2389 Mid 2010 5 Answers

Rashmi Kandhil

Answered

Jul 7, 2025

answered Jul 7, 2025 by Rashmi Kandhil

4 Answers

Can I upgrade my CPU and GPU?

accepted iMac Intel 21.5" EMC 2389 Mid 2010 4 Answers

Jeguar 13

Answered

May 8, 2025

answered May 8, 2025 by Jeguar

1 Answer

Best CPU to upgrade to having a NVIDIA GPU

accepted iMac Intel 21.5" EMC 2389 Mid 2010 1 Answer

fuso 11

Accepted an answer

Dec 8, 2024

answer accepted Dec 8, 2024 by fuso

2 Answers

How to Delete ALL users from a macOS system to prepare it for sale

iMac Intel 21.5" EMC 2389 Mid 2010 2 Answers

Infografix

Answer edited

Oct 19, 2024

answer edited Oct 19, 2024 by Infografix

1 Answer

2010 iMac LCD temp sensor cable

iMac Intel 21.5" EMC 2389 Mid 2010 1 Answer

DanJ 502.8k

Answer edited

Oct 1, 2024

answer edited Oct 1, 2024 by DanJ

1 Answer

Housing/ stand compatible with 2009 iMac?

iMac Intel 21.5" EMC 2389 Mid 2010 1 Answer

DanJ 502.8k

Answer edited

Sep 23, 2024

answer edited Sep 23, 2024 by DanJ

18 Answers

replace the hard drive, how do I connect Hard Drive thermal sensor?

accepted iMac Intel 21.5" EMC 2389 Mid 2010 18 Answers

Matias

Commented

Jul 19, 2024

commented Jul 19, 2024 by Matias

1 Answer

SSD Won’t boot once installed only externally… HELP

iMac Intel 21.5" EMC 2389 Mid 2010 1 Answer

DanJ 502.8k

Answered

May 10, 2024

answered May 10, 2024 by DanJ

10 Answers

How to use iMac only with external monitor

accepted iMac Intel 21.5" EMC 2389 Mid 2010 10 Answers

SenileOtaku 13

Answer edited

Jun 24, 2024

answer edited Jun 24, 2024 by SenileOtaku

7 Answers

iMac pre 2012 Mojave Support

accepted iMac Intel 21.5" EMC 2389 Mid 2010 7 Answers

Denys Zaitsev

Commented

Feb 9, 2024

commented Feb 9, 2024 by Denys Zaitsev

2 Answers

iMac 21 will not boot after CPU change

iMac Intel 21.5" EMC 2389 Mid 2010 2 Answers

MacTechGuy

Answer edited

Jan 17, 2024

answer edited Jan 17, 2024 by MacTechGuy

1 Answer

Front Glass Screen Replacement

iMac Intel 21.5" EMC 2389 Mid 2010 1 Answer

DanJ 502.8k

Commented

Oct 12, 2023

commented Oct 12, 2023 by DanJ

3 Answers

Diagnostic Led1 On, when pressing PowerButton then Led1 OFF

accepted iMac Intel 21.5" EMC 2389 Mid 2010 3 Answers

Massimo Oriano 67

Answered

Aug 23, 2023

answered Aug 23, 2023 by Massimo Oriano