computer crashes then will not reboot
IMAC 27” 2429 EMC computer was working as normal screen froze and screen went to solid color with vertical lines and froze. powered off and tried to reboot apple logo came on and would go into constant reboot process. tried to reinstall os which works for a couple minutes and then does again. any idea how to fix this or if it is a software /hardware issue and which component to look at first?
crwdns2934109:0crwdne2934109:0
crwdns2889612:0crwdne2889612:0
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Restart the system and hold the D key to enter into the onboard diagnostics. Did you get any errors?
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0
Hi Dan, I have tried to go into diagnostics and it doesn't go keeps timing out and goes into another reboot. even held the d key though three consecutive reboots nothing
crwdns2934271:0crwdnd2934271:0 Richard crwdne2934271:0
I cant get it to go into recovery mode either! my keyboard is USB directly into computer
crwdns2934271:0crwdnd2934271:0 Richard crwdne2934271:0
@ramunger - Are you using a USB keyboard or Bluetooth? Try the USB keyboard.
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0