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1. #Create bootable usb for mac pro 1,1 mac os x#
2. #Create bootable usb for mac pro 1,1 upgrade#
3. #Create bootable usb for mac pro 1,1 download#

I'd still like to up my memory but since I've tried twice now, both times supposedly with "Apple Approved" and for my model, I'm a bit leery. All the troubleshooting I did trying to fix it has paid off. Following a suggestion I tried removing them and it's as though I've got a new computer and have no issues. "About this Mac/System Report/Memory" recognized them so I assumed they were fine. Unable to fix the situation, I replaced the memory with 6 new 2 GB modules. Also surprising was the fluctuation of memory recognized - even with two (a pair) of 4 GB modules returning between 1 GB and and 8 GB. This will make sure the Mac is powered off. Step 2: Shut down the Mac and wait for 1-2 minutes. Step 1: Insert the macOS bootable USB drive on a USB port of Mac computer. A pair could return an error led pending the slot yet be fine in the same place on the other card, or if their order was reversed. If the target Mac computer already had a macOS or OS X on it, then installing macOS from USB is straightforward and this is called the normal way. Troubleshooting, I tried moving memory, by pair, switching order, and between cards. Using DMG Editor to create macOS bootable USB is an easy task because.

#Create bootable usb for mac pro 1,1 download#

Initially four of the six DIMM risers with memory installed were showing as being empty. dmg File Mac Wireshark Download Mac Windows. After removing the recently installed memory I've been restarting without issue.

This makes the second time I've bought and installed bad RAM. The total time should be about 5-10 min depending on your USB Flash drive speed. It's as though when restarting, the process isn't completing the power down or something drags and interferes with the powering back up. Apple Hardware Test returns no errors / have reset SMC / unable to zap PRAM.Įverything I can find online relates to fixing booting and start up issues, which all check out fine, including sleep. Removing the optical drives only quiet the issue as there are no drives to click, only Diagnostic LEDs 2 & 3 to flash. Strangely, getting stuck by way of the System reset switch results in a brief flash from Diagnostic LED 7 immediately after the flash from LEDs 2 & 3 which doesn't happen when simply restarting. Pressing the System reset switch doesn't yield a restart, rather inducing the problem and getting stuck.

I followed the instructions and rebooted.

#Create bootable usb for mac pro 1,1 upgrade#

1) Upgrade the firmware to Mac Pro 2,1 (add support for newer CPUs) There is a useful forum here: which has a utility to do this. 7) Boot and enjoy So these steps in detail with reasons and processes.

#Create bootable usb for mac pro 1,1 mac os x#

list.

When restarting, as the mac powers down, there's a click from the optical drive resetting as the power cycles and it's here where it gets stuck - right before powering back up. MacPro Original A1186 Dual-Core Intel Xeonĭiagnostic LEDs reflect no issue and the Mac is working fine until needing to restart rather than shutting down.