White screen if death HELP
Tried a new hard drive changed the ram reset pram and smc still white screen….Can't boot to my USB pen drive with Mac os x installer to try and do anything either could it be the logic board? It's a 15 inch with dedicated gpu. Thanks guys and gals
Update (09/30/2019)
Here you go start with a chime then apple logo like booting then goes to white no cursor or mouse on screen won't even boot to external drive with os on it
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Are you able to boot up in Target Disk Mode after doing a SMC reset?
Reference:
● How to reset the System Management Controller (SMC) on your Mac
● Mac startup key combinations
par Dan
Starts out with the chime and apple like it's loading then goes to white screen no pointer just white. Tried reset sms pram and boot to external drive with fresh os and USB drive with os installer same thing boot to white. Even changed the ram.
par melissa cannon
@danj yes its gives me the Option with I hold the t key I do have another MacBook same type what can I do I'll have to go buy a firewire cable tho
par melissa cannon
So to be clear you can get to the Target Disk Mode screen which should be showing you the FireWire or Thunderbolt Icons.
We only need to get this far as this is a simple test to isolate out whats happening. If you can get the icons showing up its telling us the dedicated GPU has failed.
par Dan
@danj yes it gives me the logo for what your saying. I have heard if folks disabling the gpu and using the Intel gpu graphics do know how to do this when system is in this state?
par melissa cannon
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