Truls Zhong Konstali

Hi I installed 64GB of RAM into my iMac 4 x 16GB After the upgrade the system fails to boot. I can hear the hard drive,...

Is it still possible to upgrade the RAM myself (without taking apart the Mac)? 27" Mid-2017 iMac? Or have they switched to...

Of course, the RAM slot can be DOA / broken. If you have inserted a RAM stick in slot 4 and 1/2/3 it does not boot, and that stick works in slot 1/2/3 and you have inserted it properly it is perfectly possible. You can also try resetting the SMC by disconnecting power and waiting 15 seconds and then plug it back in, wait another 5 seconds and turn it on. And NVRAM / PRAM by turning off the mac and holding CMD+ALT/OPT+R+P and turn it on and hold until you see the progress bar. Please check Startup Disk, Display, and Date & Time settings as they may have been effected by the reset.

Here is a teardown https://9to5mac.com/2017/12/27/imac-pro-teardown-owc/

Looks like a software conflict. Is it possible to try to restore and reinstall MacOS and restore the files. Start in recover, Hold CMD + R when turning on the mac Click and open Disk utility Select the installed SSD Click erase, make sure the format is set to Mac OS Extended Journaled Click erase, Warning: ALL DATA ON THE SSD WILL BE ERASED. When done, exit disk utility Click Install MacOS Follow the steps, When asked to restore data click Restore from a Time Machine backup or Startup volume Select the old spinning hard drive Click next, etc When done, reboot the mac and test

1. Have not tested anything so I assume both SSDs would work perfectly fine, 2. I would assume the original space in the MacBook is the best so I would place the SSD in the HD bay. 3. Yes. I would partition the SSD and install boot camp there and use the old hard drive as a dedicated storage device,

Since you've probably already voided the warranty I would recommend taking the MacBook apart and soaking the parts (especially logic board) in isopropyl alcohol and remove corrosion. Take a look at this Electronics Water Damage MacBook water damage - The definitive guide Repairing iPhone Liquid Damage Use the iFixit MacBook repair guide (for your computer) to take apart the MacBook. Hope this helps.

Hi all. Apples website has been updated and shows how to replace RAM in iMac mid-2017, and yes it is possible. https://support.apple.com/en-ie/HT201191

Yes there is 2 different coloured whiers Twist the one colour to the corresponding colour other whier. Heat it carefully. Then apply a few drops of solder to get it properly. Cover the whire in electric tape. Do the same for the other. Tape the hole thing together. Hope this helps Truls

I do not know what you had tried so here is some things to try - Hard restart (Hold power butten and home until apple logo appear) - Turn on when connected to power - When it is completely off, connect power - Connect to iTunes and restore it - Open it, disconnect the battery, wait 1 minute, reconnect it and reassemble the phone, plug into power

I an pretty sure it is correct, apple is saying the only difference between the 6 and 6 plus is optical image stabilisation, optical image stabilisation is only available for the 6 plus