Model A1225 / Mid 2007 and Early 2008 / 2.4, 2.8, or 3.06 GHz Core 2 Duo processor

447 Questions View all

Weird Display Issues - Graphics Card?

My iMac doesn't boot up completely it plays the startup sound, it takes me to a screen with lines and the apple logo then it takes me to a blue startup screen, it later takes me to a screen with blue boxes and a mouse cursor.

Block Image

Block Image

Block Image

Answer this question I have this problem too

Is this a good question?

Score 2

Comments:

For anyone who helps it is much appreciated!

by

Add a comment
Deck the Halls
With tools and Fix Kits

1 Answer

Most Helpful Answer

First hook it up to an external monitor. If you get the same thing you will know you have a bad GPU card. This can be replaced or reworked with a hot air work station with high expectations of a successful fix.

Was this answer helpful?

Score 6

Comments:

How would I "rework" the graphics card?

by

Hey @mayer , could you possibly bake it or use a blow dryer at the high heat setting?

by

Bake it? If you have something like a $3000 dental lab porcelain oven that has an exact temperature adjustment and know the melting temperature of the solder, yes. If you don't, definitely not!

With a hot air gun you can see exactly when the solder flows and know when to take the heat off to avoid melting all the solders on the board.

A hair dryer could possibly work if you can choke down the output to about the size of a quarter.

The link about gets you a cheap solution, you can use it and then resell it on eBay and maybe it costs you $10 plus shipping.

by

Hey @mayer I went ahead and used a old toaster oven (since there are toxic chemicals in the chip) and baked it at 385 degrees F for 8 min. and left it to cool for 15 min. I then put it into the iMac, reassembled it and voila it worked! After it siting in my office for about 2-3 years, I had finally brought it back from the dead. It was still on macOS 10.5.8 (aka Leopard), and I had the snow leopard disk so I installed that which gave me access to the Mac App Store to update to El Capitan. I have installed new versions of Pages, Numbers, and Keynote and Office 2016, everything works great!! I was thinking of replacing the current Airport Extreme card to a newer Broadcom chip with Bluetooth 4.0 LE capabilities and newer 802.11 Wi-Fi modes. This chip also enables Continuity, Handoff, Airdrop, etc. I wanted to ask for your opinion on which card I should get and if it's worth the time. Thank you for your time!

by

Show 1 more comment

Add a comment

Add your answer

Elias S will be eternally grateful.
View Statistics:

Past 24 Hours: 2

Past 7 Days: 5

Past 30 Days: 24

All Time: 216