iMac startup but nothing on the display...
Hello,
I’ve got an iMac 21,5” from Early 2013.
When I press the power button, I can hear the fan spinning and I hear the startup chime, but it doesn’t show anything on the screen.
I’ve tested it and the display panel is good, this isn’t something that’s wrong with the software and it can’t be the GPU because I’ve replaced the CPU (it only has integrated graphics) and it still doesn’t display anything… It’s not the RAM, the disk drive, the display nor the power supply.
The fan doesn’t speed up to the max and the only LED’s on the Logic Board that are on are the lower two LED’s.
I’m kind of getting lost with this iMac… I hope someone is able to help or has some advise…
Bu iyi bir soru mu?
3 Yorum
What was the condition of the system when you started? What this working before you opened it up and all you've done is replace the CPU?
If that is correct what is the CPU you put in?
Remember not all of the Intel CPU's have the intergraded graphics engine and you are limited on which CPU's you can put in.
Dan tarafından
@danj The iMac is second hand and this is what it does since the point I've got it. The CPU I've tried was a i7 3770.
Max tarafından
Btw, the iMac doesn't even display anything on a external monitor over Mini DisplayPort, but as I said, it's not the CPU/ GPU (also because it does post), so maybe it's something from GPU to display connector? I really don't know...
Max tarafından