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  1. Jcpelaez

    MP 1,1-5,1 SSD MacOS Installer (Already Formated)

    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...
    • Jcpelaez
    • Thread
    • boot mac macos installer ssd
    • Replies: 2
    • Forum: Mac Pro
  2. Arthur82

    Windows 10 Install fail /BootCamp/ iMac 5k 27 2017 / Fusion Drive

    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...
    • Arthur82
    • Thread
    • boot bootcamp camp drive fusion fusiondrive imac install windows windows 10
    • Replies: 2
    • Forum: iMac
  3. A

    MacBook Pro 2016 w/Touchbar issue! Stumped

    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...
  4. O

    Boot with external HD Seagate USB3 only by cold startup

    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...
    • OSX_rulez
    • Thread
    • boot seagate external drive
    • Replies: 8
    • Forum: iMac
  5. volumegarage

    MAJOR MELTDOWN - Installed Catalina and can no longer reboot - memory issues

    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...
  6. bobitavu

    cpu upgrade fail single x5675 mac pro 2009 updated 5.1

    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...
    • bobitavu
    • Thread
    • 2009 4.1 5.1 boot cpu fail issue update upgrade x5675
    • Replies: 7
    • Forum: Mac Pro
  7. Mettwurst

    Looking for solution for problem with eGPU and external bootcamp SSD.

    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...
  8. iglaoftheninth

    External SSD issue: EFI partition missing after reformatting, now can't be read altogether

    (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...
  9. Opry99er

    Making a SCSI drive bootable

    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...
    • Opry99er
    • Thread
    • 68000 bless boot format hard drive plus scsi system 6 system folder
    • Replies: 6
    • Forum: Apple Collectors
  10. axrst

    MP5,1 won't boot back to Mojave after BootCamp win10

    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...
    • axrst
    • Thread
    • boot boot camp mojave windows
    • Replies: 6
    • Forum: Mac Pro
  11. D

    Update 10.11.4 to 10.11.6 on MP 1,1

    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...
    • danielaaron94
    • Thread
    • boot el capitan macpro 1.1 piker unsupported update
    • Replies: 3
    • Forum: Mac Pro
  12. M

    2018 Mac mini boot looping (on secure boot)

    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...
  13. G

    MBP 13' Retina 2016 Mojave 10.14 Troubleshooting

    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...
  14. W

    4,1 with Apple 512GB SSD on Sintech slow pre-boot

    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...
  15. S

    iMac (Retina 5K, 27-inch, 2017) black screen problem

    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...
    • shreedx
    • Thread
    • black boot bootcamp imac screen
    • Replies: 9
    • Forum: iMac
  16. P

    Split Fusion Drive, now not booting, can't find solution!

    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...
    • provhatr
    • Thread
    • boot boot error fusion fusion drive hdd hdd failure recovery split ssd ssd failure
    • Replies: 5
    • Forum: MacBook Pro
  17. traffens

    Problems installing new HDD

    I have a mid 2012 macbook pro that had a corrupted hard drive. I'm trying to install a new hard drive. I got a 500GB 5400RPM drive. I erased it and formatted it as journaled using my current 2013 MBP. After plugging it into the 2012mbp, I try to install Mojave using an external booter. I begin...
    • traffens
    • Thread
    • boot disk harddrive disk utility hdd techsupport
    • Replies: 3
    • Forum: MacBook Pro
  18. error2507

    PowerMac G5 not turning on

    Hey! So I recently got a PowerMac G5 and when I first booted it, just the fans where spinning but nothing else. I thought I could solve that problem later and decided to clean the Mac up, since there was dust everywhere. After I did that, I wanted to turn it on again. But nothing happened. When...
    • error2507
    • Thread
    • boot broken no boot power mac powermac powermac g5 problem won't boot
    • Replies: 20
    • Forum: PowerPC Macs
  19. F23

    Help - Booting w External SSD

    Hi, My 2011 iMac's hard drive has gotten so slow it's basically unusable. I have a 512 GB WD MyPassport SSD and have successfully used it to boot up the iMac and am running on it now. The external SSD uses a USB C port, but it came with a USB A adapter as well. This is where I have an issue...
    • F23
    • Thread
    • adapter boot hard drive imac ssd thunderbolt usb
    • Replies: 4
    • Forum: iMac
  20. L

    Slow Boot Even w/ Thunderbolt 3/NVMe APFS Drives?

    It's a pretty common issue to have slow boot times now with external ssds connected with USB 3 or USB-C, but does this problem still exist with TB3 NVMe external drives (such as a Samsung X5)?
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