Guest daveyanthony Posted May 27, 2022 Posted May 27, 2022 I have a 5,1 that was having issues that i still haven’t been able to figure out. I decided to buy a replacement backplane since all of my other components were tested and deemed fine. I installed the backplane last night and now the tower will power on but doesn’t chime or boot. I have tried multiple GPU, and CPU trays, a dual 5690 tray and a single 5690 tray, both from a 5,1. the diagnostic led’s look fine besides the GPUOK light blinking which i’ve read could indicate a cpu error. It... Read more Source: MacRumors
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