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Current version by: Jeff Dickson ,

Text:

As I was troubled by the conflicting information on this page/site, I wanted to testify I did just complete replacing the video card in my A1225 / EMC2267 24" iMac. I bought the Mac new from Apple in 2009 with the ATI Radeon 42504850 HD video card upgrade. After 4 years, the VRAM died...the picture would scramble at the logon screen unless I booted into safe mode. In safe mode, screen covered in blue dots, TechTool Pro confirmed bad VRAM.
As I was troubled by the conflicting information on this page/site, I wanted to testify I did just complete replacing the video card in my A1225 / EMC2267 24" iMac. I bought the Mac new from Apple in 2009 with the ATI Radeon 42504850 HD video card upgrade. After 4 years, the VRAM died...the picture would scramble at the logon screen unless I booted into safe mode. In safe mode, screen covered in blue dots, TechTool Pro confirmed bad VRAM.
 
I purchased a new card from Impact Computers in Florida. I had to fully remove the logic board to get at the video card, but with only three more screws it pulled free from the MXM connector, heat sink and all.
 
I've got pictures of the whole process if anyone's interested.
 
I'm confident one could upgrade the nVidia GT120 or 130 mid-line machines to the ATI card the same way. It may be the baseline machines (9400M graphics) don't have the MXM socket installed on the motherboard and are non-upgradeable.

Status:

open

Edit by: Jeff Dickson ,

Text:

As I was troubled by the conflicting information on this page/site, I wanted to testify I did just complete replacing the video card in my A1225 / EMC2267 2324" iMac. I bought the Mac new from Apple in 2009 with the ATI Radeon 4250 HD video card upgrade. After 4 years, the VRAM died...the picture would scramble at the logon screen unless I booted into safe mode. In safe mode, screen covered in blue dots, TechTool Pro confirmed bad VRAM.
As I was troubled by the conflicting information on this page/site, I wanted to testify I did just complete replacing the video card in my A1225 / EMC2267 2324" iMac. I bought the Mac new from Apple in 2009 with the ATI Radeon 4250 HD video card upgrade. After 4 years, the VRAM died...the picture would scramble at the logon screen unless I booted into safe mode. In safe mode, screen covered in blue dots, TechTool Pro confirmed bad VRAM.
 
I purchased a new card from Impact Computers in Florida. I had to fully remove the logic board to get at the video card, but with only three more screws it pulled free from the MXM connector, heat sink and all.
 
I've got pictures of the whole process if anyone's interested.
 
I'm confident one could upgrade the nVidia GT120 or 130 mid-line machines to the ATI card the same way. It may be the baseline machines (9400M graphics) don't have the MXM socket installed on the motherboard and are non-upgradeable.

Status:

open

Original post by: Jeff Dickson ,

Text:

As I was troubled by the conflicting information on this page/site, I wanted to testify I did just complete replacing the video card in my A1225 / EMC2267 23" iMac. I bought the Mac new from Apple in 2009 with the ATI Radeon 4250 HD video card upgrade. After 4 years, the VRAM died...the picture would scramble at the logon screen unless I booted into safe mode. In safe mode, screen covered in blue dots, TechTool Pro confirmed bad VRAM.

I purchased a new card from Impact Computers in Florida. I had to fully remove the logic board to get at the video card, but with only three more screws it pulled free from the MXM connector, heat sink and all.

I've got pictures of the whole process if anyone's interested.

I'm confident one could upgrade the nVidia GT120 or 130 mid-line machines to the ATI card the same way. It may be the baseline machines (9400M graphics) don't have the MXM socket installed on the motherboard and are non-upgradeable.

Status:

open