mac os told that i have warranty until, but i can't make warranty repair without this cheque. here another problem arised - seller didn't send some 'cheque with serial number' for me. i've contacted support - they told me go to apple store for warranty repair. but most annoying thing is this random reboots. various mac os x applications was crashed many times. without any error messages - it just reboots while i'm working - so i'm losing my opened files. in first 30 days of my mac experience it was randomly rebooted near 20 times. it's quite comfortable to work on mac, but many troubles waited for me. i've decided to make pram reset, which helped, and yosemite started to work on my mac. after turning computer on, i see only cursor on black screen. after upgrade process is finished, mac didn't want to boot. it came with old mac os preinstalled (i cannot remember version), so i decided to upgrade it for recent yosemite. I was bough my used mac at december, 2014. MCE Technologies 2TB SSD for Mac Pro (Late 2013): PCIe-Based 4 Lane (x4) NVMe SSD Flash Storage Upgrade - Requires macOS 10.13.x (High Sierra) or Later 3.5 (8) OWC 2.0TB Aura Pro X2 Complete SSD Upgrade Solution with Tools & OWC Envoy Pro Enclosure Compatible with MacBook Air (Mid 2013-2017) and MacBook Pro (Retina, Late 2013 - Mid 2015) 4. Verified purchase: Yes | Condition: Pre-owned However, in seeking a Desktop upgrade that essentially matches current system perf ormance yet is still fully upgradeable - this 2013 Mac Pro is both a reasonable price and performance competitor! Read full review I admit, my computer usage doesn't require a Mac Pro. I then installed the new 1TB drive I had purchased, restored from Time Machine, and it has been smooth sailing ever since! Fortunately a drive RESET using Parted Magic solved the problem and the drive upgraded to Mojave on the next attempt.

When I looked at the drive using terminal - it showed nearly 20 different disk designations! Erasing did not resolve multiple disk issue. The Apple SSD simply would not take the upgrade, although it went through the entire process twice without upgrading. I had difficulty upgrading internal drive from High Sierra to Mojave. Item was actually in what I would describe as excellent physical condition upon receipt. 2013 Mac Pro - an excellent Desktop System

Mac pro late 2013 ssd