I have a 2009 Mac Pro flashed to 5,1. I upgraded my single W3250 with a X5690 off of ebay. The issue that came up is this: on powering on it chimes, shows the apple logo loading screen, goes up about halfway the progress bar and then restarts. I already reseated CPU and RAM (tried both a set of 24 GB @1333 and the original 6 GB 1066 ecc), reset the NVRAM (multiple times), tried with both the original Radeon HD4870 and my Radeon rx560, tried recovery mode and booting from a Catalina installer, then downgraded to Mojave and tried with that installer; i also tried removing the hdd, ssd, and expansion cards, leaving in only the absolute necessary fot it to boot at least in recovery mode. It shouldn't be a compatibility problem, right? The machine worked perfectly before. It could really be a faulty processor at this point, but it seems weird to me judging by the symptoms.
Hi, I’m trying to do the same thing but after I put everything back up and turn it on, the mac chimes, then shows the apple logo and the loading bar, which only goes up halfway before restarting, in a loop. Did you have by chance similar symptoms?
Zodra ze een reputatiescore hebben bent je in staat om een grafiek te zien van het verloop hiervan.
Hier is een voorbeeld van hoe de grafiek eruitziet:
Nog geen reputatiescore gekregen.