We came home from a month-long RV trip and found the circuit breaker was tripped for my office. The UPS was out of power and my Mid-2011 27" iMac, which had been left plugged in but turned off would only boot up with hundreds of brightly colored vertical lines on the screen. After trying a number of reboots, resets and pram resets I gave up and bought a new 23" M1 iMac. It was time.
So, I moved the iMac into a spare bedroom to deal with later. Now, it's about a month later and I decided to deal with the old iMac. Even if I decide to sell it or trash it I need to wipe the hard drive. So, I'd like to boot it up.
Today, I plugged it in and booted it up. Now, instead of hundreds of brightly colored vertical lines the screen is black - sort of - with some faint light lines, just a few nothing major. But I still have no way to complete booting and figure out how to wipe the HD.
The question is... can I get a Thunderbolt 2 to HDMI cable and plug into another monitor and use that to boot and log in? Since I don't know if the problem is the video card... or the LCD panel I don't know what will work and what wont.
Here's a photo of the ports on the back of the iMac. I was going to post a photo of the brightly colored vertical lines on the screen but since they have somehow disappeared I can't do that.
.
So, I moved the iMac into a spare bedroom to deal with later. Now, it's about a month later and I decided to deal with the old iMac. Even if I decide to sell it or trash it I need to wipe the hard drive. So, I'd like to boot it up.
Today, I plugged it in and booted it up. Now, instead of hundreds of brightly colored vertical lines the screen is black - sort of - with some faint light lines, just a few nothing major. But I still have no way to complete booting and figure out how to wipe the HD.
The question is... can I get a Thunderbolt 2 to HDMI cable and plug into another monitor and use that to boot and log in? Since I don't know if the problem is the video card... or the LCD panel I don't know what will work and what wont.
Here's a photo of the ports on the back of the iMac. I was going to post a photo of the brightly colored vertical lines on the screen but since they have somehow disappeared I can't do that.
.
