iMac starts up with a Black Screen Repair

This time we had a type of repair which is very common on these 2008-2012 model iMacs – iMac starts up with a black screen repair.

It is a case where iMac turns on and we can hear it producing the chime loading sound, but there is no picture on the screen. We can quickly confirm this by pressing the Caps Lock button on the keyboard and getting a response from its green light.

A quick way to confirm of a GPU failure of iMac starting up with a black screen
iMac Graphic card failure caused by lack of regular servicing

When taken apart, we can see the vast amount of dust within this iMac starts up with a black screen repair. This is the main reason for graphic failures on these iMacs we see regularly coming to our workshop.

iMac starts up with a black screen repair

Firstly we need to take apart the iMac and take out the failed graphic card. We can do this repair in two ways – We can either replace the graphic card (that’s most of the repair shops used to do, including Apple) or attempt to repair it. Replacing it will be ideal, however considering these cards, we will have difficulty finding new ones on the market. While used ones will be pretty much at a state close to failing like this one.

Dried thermal compound causing overheating of the Graphic Chip

We can see immediately the thermal compound is completely dry. It should look like fresh toothpaste. However, it is completely dry like cement. It requires diluting and scraping off without damaging the chip.

Once the area is clean, this little board goes into the GPU repair machine, which resolders the chip back. By resoldering it back under intensive directed heat we ensure the solder joints are connected properly.

We have a sophisticated equipment workshop with high accuracy microscope, ultrasonic cleaning bath, reflow machine, and tools for micro soldering to achieve high-quality logic boards repairs. With hundreds of components in stock, we quickly located and replaced the faulty resistors and capacitors in the area.

Resoldering graphic chip on iMac starts up with a black screen repair

The repair process involves Resoldering the chip under intensive directed heat as seen in the video above. We want to ensure that solder joints are all melted and resoldered properly. This will ensure the longevity of the repair and hopefully giving another 3-5 years lifespan to these sturdy and reliable machines.

Resoldered iMac Graphic Chip in BGA repair machine

Please note: This is not educational material. It is rather a showcase of the services we offer.
Therefore, it should be used as general guidance of what to expect of such repairs.
In case you have a similar device and need the repair, always rely on professionals. These are sensitive electronic devices, and small mistakes may cause irreversible electronic damage. Which may require whole part replacement for 2 or 3 times the cost.

Successful iMac starts up with a black screen repair

Testing a successful iMac starts up with a black screen repair

Finally, we can assemble and test the iMac and ensure the repair was completed successfully. This test includes testing every part of the system to ensure its longevity and to avoid issues where a couple of weeks after we repair one thing, another part fails. No one likes those car repairs shops.

Do you need this Repair in Adelaide?

If your Mac or iMac is causing trouble and need iMac Repair Service in Adelaide, give us a call, and we will advise for the best scenario to get your device repaired.

We at IT-Solve, specialise in iMac and electronics repairs. We will do our best to repair your Apple Mac quickly without involving high costs and long waiting times in repair shops. Our average repair takes under a week!

Call us now on 0469317177 or drop us an inquiry via Text us via Whatsapp MessengerWhatsApp or Text us via Facebook MesengerMessenger
Our engineers will respond quickly to your question. | Interstate? Send-IT for a Repair

Repaired, not Replaced!

We are committed to reducing e-waste in Australia. How we do it is by educating our customers in the repairability and longevity of their devices, as well as providing affordable iMac Repairs here in Adelaide.
Although our best intentions and hard work, this is not an easy task. Customers must accept that cost of high-quality electronic repairs, is between a third and half of the price of a new device. However, with the current trend of planned obsolescence in electronic design, we see more and more iMacs having shorter lifespans. To tackle that, while we do our repairs we target common planned obsolescence engineering design mistakes to ensure we extend the life expectancy of the iMacs we repair. Check some of our iMac Repair Cases to get an idea of the process.

That said, if we buy a new one or write it off via insurance, it does not guarantee that the new one will not meet the same fate as the older one pretty soon.
As matter of fact, quite often we see accidents reoccurring within less than 2-year gaps. If we can save 3000$ or even 1000$ today by repairing our faulty iMac is great. That’s an extra half iMac cost ready to be spent on another one when the time comes or our need for performance increases.
When that time comes is up to us to buy a new one or keep pushing the one we have, but delaying it by a year or three is always a good starting point and saves another abandoned iMac polluting our one and only Planet.