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Current version by: oldturkey03 (vote details) ,

Title:

Can a motherboard fail and still drive an external monitor?

Text:

My nephew's monitor began by showing a big vertical line and sometimes a white screen. Technicians guessed it was the display cable, another the display. The shop opened it up, then claimed it needed a new motherboard because the chip was bad. Now the display won't work at all. It will drive an external monitor. Does this sound like an accurate diagnosis? Why would it still drive an external monitor? Why would it completely fail AFTER they open it. The line was annoying, but at least it worked.

Device:

MacBook Unibody Model A1278

Status:

open

Accepted Answer:

75281

Edit by: ABCellars ,

Title:

Can a motherboard fail and still drive an external monitor?

Text:

My nephew's monitor began by showing a big vertical line and sometimes a white screen. Technicians guessed it was the display cable, another the display. The shop opened it up, then claimed it needed a new motherboard because the chip was bad. Now the display won't work at all. It will drive an external monitor. Does this sound like an accurate diagnosis? Why would it still drive an external monitor? Why would it completely fail AFTER they open it. The line was annoying, but at least it worked.

Device:

MacBook 13.3 (MacBook5.1 - A1278)Unibody Model A1278
MacBook 13.3 (MacBook5.1 - A1278)Unibody Model A1278

Status:

open

Original post by: Matt ,

Title:

Can a motherboard fail and still drive an external monitor?

Text:

My nephew's monitor began by showing a big vertical line and sometimes a white screen. Technicians guessed it was the display cable, another the display. The shop opened it up, then claimed it needed a new motherboard because the chip was bad. Now the display won't work at all. It will drive an external monitor. Does this sound like an accurate diagnosis? Why would it still drive an external monitor? Why would it completely fail AFTER they open it. The line was annoying, but at least it worked.

Device:

MacBook 13.3 (MacBook5.1 - A1278)

Status:

open