Hi,
I’ve just replaced the HDD of my iMac (21.5” late 2013) with a SSD (and upgrade Memory up to 16GB).
I installed Mac OS Catalina. Everything was fine : the iMac started and run without any problem so I finished to seal the screen.
But, after a while, when I try to wake the iMac, it does not respond. Screen remains black (no backlight).
I have to force the reboot. Then I usually get everything back, but sometimes, even when I restart it, the screen remains black and I have to restart it 2,3 o4 times before it works properly.
I’ve read a lot of thing and my guess is that it comes from the ssd but I have no idea how to fix it…
Thanks for your help !
=== Update (04/18/2020) ===
After having switched back the ssd with the original HDD, I still have the problem... Could it be from the RAM ?
Or from some damages I could have made somewhere ?
Some pictures of the display connectors
[image|2068664]
[image|2068663]
[image|2068660]
[image|2068666]
[image|2068661]
[image|2068662]
I’ve just replaced the HDD of my iMac (21.5” late 2013) with a SSD (and upgrade Memory up to 16GB).
I installed Mac OS Catalina. Everything was fine : the iMac started and run without any problem so I finished to seal the screen.
But, after a while, when I try to wake the iMac, it does not respond. Screen remains black (no backlight).
I have to force the reboot. Then I usually get everything back, but sometimes, even when I restart it, the screen remains black and I have to restart it 2,3 o4 times before it works properly.
I’ve read a lot of thing and my guess is that it comes from the ssd but I have no idea how to fix it…
Thanks for your help !
=== Update (04/18/2020) ===
+
After having switched back the ssd with the original HDD, I still have the problem... Could it be from the RAM ?
Or from some damages I could have made somewhere ?
I’ve just replaced the HDD of my iMac (21.5” late 2013) with a SSD (and upgrade Memory up to 16GB).
I installed Mac OS Catalina. Everything was fine : the iMac started and run without any problem so I finished to seal the screen.
But, after a while, when I try to wake the iMac, it does not respond. Screen remains black (no backlight).
I have to force the reboot. Then I usually get everything back, but sometimes, even when I restart it, the screen remains black and I have to restart it 2,3 o4 times before it works properly.
I’ve read a lot of thing and my guess is that it comes from the ssd but I have no idea how to fix it…
Thanks for your help !
=== Update (04/18/2020) ===
-
After having switched back the ssd with the original HDD, I still have the problem... Could it be from the RAM ?
Or from some damages I could have made somewhere ?
I’ve just replaced the HDD of my iMac (21.5” late 2013) with a SSD (and upgrade Memory up to 16GB).
I installed Mac OS Catalina. Everything was fine : the iMac started and run without any problem so I finished to seal the screen.
But, after a while, when I try to wake the iMac, it does not respond. Screen remains black (no backlight).
I have to force the reboot. Then I usually get everything back, but sometimes, even when I restart it, the screen remains black and I have to restart it 2,3 o4 times before it works properly.
I’ve read a lot of thing and my guess is that it comes from the ssd but I have no idea how to fix it…
Thanks for your help !
+
+
=== Update (04/18/2020) ===
+
+
After having switched back the ssd with the original HDD, I still have the problem... Could it be from the RAM ?
+
+
Or from some damages I could have made somewhere ?
Hi,
I’ve just replaced the HDD of my iMac (21.5” late 2013) with a SSD (and upgrade Memory up to 16GB).
I installed Mac OS Catalina. Everything was fine : the iMac started and run without any problem so I finished to seal the screen.
But, after a while, when I try to wake the iMac, it does not respond. Screen remains black (no backlight).
I have to force the reboot. Then I usually get everything back, but sometimes, even when I restart it, the screen remains black and I have to restart it 2,3 o4 times before it works properly.
I’ve read a lot of thing and my guess is that it comes from the ssd but I have no idea how to fix it…
Thanks for your help !