My intel iMac is displaying vertical lines (20-30) on the screen. The Genius Bar guys saud that it was the graphics card. My question is whether this is totally separate from the motherboard? I plan to buy a used iMac with a dead motherboard and take the graphics card out and put it in mine.
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Technician (only for users in the US for now) and get all the help you need. Goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Linear defects of this sort can be caused by a faulty display cable, a faulty LCD panel, or a faulty connector between the two. Much less likely is a problem with your graphic processor, since the line is static in appearance and position. Unless your Mac guy has lots of spare parts hanging around, I would suggest you replace the cable first, as it is the least expensive fix. If that doesn't do the job, then the display panel must be replaced.
Try a reboot. If it remains, shut down and leave off for about an hour. If it comes back you probably have a problem with your video card. You can have it replaced (it will be pricey though), or consider getting a new computer. I had a similar issue with an Intel iMac 24-inch out of warranty and had the card replaced but your machine is much older.
Attach an external monitor (you may need to buy an adapter to try this) and turn on Display Mirroring in the Display preferences. If the same symptom shows on the external monitor, then you've got a video card problem. If not, I'd say you're screen has some kind of damage of failure. Sorry, but either one is likely going to require a trip to the Apple Hospital. At least with the display problem, you could use the external monitor until repaired.
Your graphics card is bad. The reason you don't see it on your bios screen is because it is not displaying in the high resolution high color graphics. Once your card starts displaying high resolution high color, then you get the lines. You need to replace your graphics card.