Sometimes won't power on, only has black screen & power light
Hi! I've got a 15" aluminum Pro that is not behaving. Typically when powered on, the optical makes its startup noise, the screen stays black, and the sleep light glows. The chime noise does NOT sound. Occasionally when I try various things such as reseating/chang
My first thought is that this machine may have the Nvidia GPU issue, because it is within the range of machines that could potentially have the issue, and that issue is becoming more prevalent in general. However, I've dealt with many of those machines, and they usually do chime and act as if they are working, aside from the black screen, whereas this one goes into the odd mode I've described above, with no chime. There is no external video when it's in this mode, but external video works fine when the machine is working.
Does anyone have any ideas, and does anyone have an opinion as to whether or not this could still be the Nvidia issue? My next step is to replace the DC-in board, but if it seems likely to be the Nvidia issue I'll take it to the Apple store instead (because it's within the 4 year window, and they would replace the board if it qualifies).
this is the best way to go there in apple store for checking if this model has Nvidia 8600M GT graphics then they will replace it within the 4 years of purchase of this laptop.
MacBook Pro 15-inch and 17-inch models with NVIDIA GeForce 8600M GT graphics processors
MacBook Pro (17-Inch, 2.4GHz)
MacBook Pro (15-Inch, 2.4/2.2GHz)
MacBook Pro (Early 2008)
These computers were manufactured between approximately May 2007 and September 2008.