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boot rom

  1. R

    MP 1,1-5,1 Boot Rom issue, NVRAM variable removed after reboot, any solution?

    Hi everyone, I would appreciate a bit of a help here. I've a Mac Pro 5.1, and I've recently updated to High Sierra, the problem I'm facing is that the NVRAM variables are removed after restart of the machine. I'm using GTX 980 ti GPU and it was working fine with El Capitan, it should work...
  2. AphoticD

    PowerPC Mac Firmware / Boot ROM Updates

    An old version of Mactracker once had links within the app to the latest Apple Boot ROM / Firmware Update, if it was available. This information is no longer listed and I can't seem to find a comprehensive table of all the old updates. To assist anyone looking for these updates, I propose we...
  3. F

    Stuck with an old EFI Firmware (Boot ROM) with no Apple SSD?

    Sorry for a lengthy post. This is an uncommon situation for most people so please read only if the topic particularly interests you. I bought a used MacBook Air 7,2 (MBA1) last summer, which came with no SSD. I thought it was no biggie because it was my plan to install an M.2 NVMe SSD anyway...
  4. mothchip

    iMac 4,1 can't update EFI or SMC firmware

    Hello! I hope this is the right place. I tried to post to the Netkas forums but it's not sending me an activation email for some reason. I have an iMac 4,1 I picked up from a garage sale that I'm trying to install Linux to, but can't. I believe the core issue is that I cannot update the boot...
  5. A

    Macmini5,2 is there a way to downgrade Boot ROM?

    The story. After Security Update 2020-002 High Sierra my Mac mini mid 2011 with AMD HD 6630 immediately restarts on every go to sleep. Moreover, it restarts when idle, so now I need to run CPU-hungry background tasks. It's weird. I tried different OSes, different drives, PRAM and SMC...
  6. roobarb!

    Updating Boot ROM Firmware with Non-Apple SSD

    I've seen it mentioned a few times that firmware updates don't always work when booting from non-Apple storage. Well, I took a moment to check the firmware on my 'MacBook Pro (Retina, 13-inch, Early 2015)', the MacBookPro12,1 A1502 model, which had its Apple SSD die out of warranty and which now...
  7. Rastafabi

    Resolved No graphics output on EFI NVIDIA, only on AMD

    Hello Community! I am experiencing a very strange issue. I did not even find anything similar on the web, though this does not necessarily mean anything ;) I managed to get an Mac Pro in original condition for a very convenient price. Mac Pro 4,1 - ATI 5770 - 16GB Ram... I did flash it to a...