boot

Hello, I cannot get my MacPro 3.1 to recognise a bootable USB stick. I'm trying to upgrade from 10.11 El Capitan, to a newer version using the unoffical patcher tools. I've tried both Mojave, and High Sierra and niether will work. The USB stick is formatted Mac OS Extended (Journaled), with a...

hi Mac community I want to bring my CMP 5.1 2010 into 2019 so purchased this Items 1. highpoint Bootable Raid Controllercard 2. Samsung Pro 970 Nvme SSd 500GB (2x) 3. Zotec NVIDIA GTX 670 4GB with flashed EFI ROM for Mojave How should I progress to install Mojave on both NVme`s in...

hi all I just bought a 2017 iMac with 1tb fusion and I’m happy with its performance for my needs But I’m getting the chance to buy a Samsung T5 500GB ssd for very cheap Would I be better off 1. Booting the os and everything on the external ssd 2. Leaving the boot drive and applications on...

Hello! I'm having problem with my new 2TB Samsung SSD for media files on my Mac Pro with High Sierra. It seems to be working well according to the disk utility but sometimes I reboot and it doesn't appear (like is not connected) and when I shut down the mac entirely then it appears when I turn...

Hello! I have this issue. I tried some installation in a new SSD I bought then it got corrupted so I formated it. Many times actually, but still booting a macOS Installer partition that takes the screen to a (stop, deny) sign, so it doesn't boot with the apple, then everytime I turn the Mac on I...

Hi, I have a problem installing Windows 10 with BOOTCAMP, first the process was good, lowers the compatibility software, creates the partitions well and restarts to install windows. But when it arrives at the installation it does not detect my hard disk, it goes from accepting the terms of the...

Hey, I purchased a Macbook pro 2016 w/touch bar online and the other day it froze whilst i was using it and then shut down and "your system restarted because of a failure press any button to continue" or something along those lines appeared. Pressed a button, waited for it to load but it got...

Hello all, I'm a new MacRumors user :-) I've read many forums to find an answer to this problem, but even the Apple support couldn't fix it, I hope to find some good suggestions here! Since High Sierra and now up to Mojave 10.14.5, I can't boot an iMac 5K 27" late-2015 using an external HD...

I sure hope someone has experienced a problem like this and can assists. Earlier this week, I downloaded Catalina on to my new iMac. The os worked ok for a couple of days, but my hard drive was full. I think I downloaded the new XCode and haven't been able to boot the machine since. I've worked...

Hi, sorry for the double post, maybe some readers will only get it here Hi everyone, new to this forum. Mac pro 2009 mono cpu (stock mono 2,66) updated to 5.1, high sierra with bootrom MP51.0089.B00 BootROM CPU update fail !! Trying to install a x5675 bought on ebay After cpu change and new...

Hello everybody I'm trying to keep it short as I'm already a week off. I would like that if I start bootcamp on my external SSD, which can keep my eGPU connected and Windows does not crash when booting, because it does not get the power management. Windows I got on it according to this video...

(MacBook Pro 13" late 2013, 8 GB RAM, i5 2.4 GHz) Hi all! I recently got a 1 TB Seagate Backup Plus external SSD and was planning to install Mojave on it. After plugging it in for the first time, I opened Disk Utility to change the partition map from MBR to GUID and then started up the...

Hello fine folks. My Mac Plus has been upgraded to 4MB, the old SCSI drives are now safely recovered and archived, I have a working LocalTalk network set up with my eMac, and all is well in the land. I wanted to accomplish all these things before I went on to my next task: Retiring my two SCSI...

If this has discussed before pardon me, but a search did not gave me something relative (or my English are not so well). OK, I have a MacPro 5,1 with a Saffire Pulse RX580 and Mojave. Recently I updated the boot ROM version to 141.0.0.0.0 but the problem is still there: If I choose to boot...

So after two long weeks of trial and error i FINALLY got El Capitan 10.11.4 up and running on the old mac pro 1,1 WITH a boot screen. Now i am extremely hesitant to install any further updates. Luckily the DMG i acquired was already 10.11.4, however, with automatic updates turned off, i have...

So I got my brand new 2018 mac mini a week ago. Launched little bugger, installed some apps, experienced my first crash and was still able to boot normally. Few days later another crash and after that, my mini keeps crashing on boot up. Apple logo shows up, progress bar loads around 3/4 and...

Hello! I have a MBP 13' Retina 2016 running Mojave. I can boot up to the log in screen and when I log in, it seems to take forever to load. I've let it load overnight, multiple days the load bar just sits on full but never logs in. I tried recovery mode, it will also sit on a full load bar. I...

I dropped in a 512GB SSUBX AHCI blade removed from a 2014 Mac Mini into a Sintech card in my Mac pro as the boot volume. Performance is great, ~1500MB/sec. The problem is AFTER the boot chime, it takes 60 seconds at the gray screen before it starts to boot. GPU is boot screen capable. It acts...

Hello, I was using my iMac as usual today - did some work in Mac OS X, then booted through bootcamp to Windows and played some PUBG. Suddenly, in the middle of the game (few minutes in), the iMac froze. I waited for couple of seconds and since nothing was happening, I decided to turn it off and...

My 2011 Macbook Pro running El Capitan was running fine until recently when it suddenly decided to stop booting after getting a new charger which I assume was sketchy (refurbished apple from ebay). I believe that my fusion drive has split back into the original hdd and ssd and now I can't boot...