![]() After hitting power, and pressing "d", the optical drive spins up, and I can hear that the system disk is being read, and then everything quiets down, and there I am sitting in front of a blank screen. As best as I can tell, everything loads up normally, except that I can't see it. Everything else seems to work just fine.until I tried booting (while pressing the "d" key) from my system disc, to run Apple Hardware Test. Ever since I installed the 5770 however, the screen remains blank until JUST before OS X has fully loaded (sometime AFTER the grey Apple logo would ordinarily appear on-screen, but before Finder opens up).Īt first, I didn't think much about it. After a moment or two of darkness, the grey screen & Apple logo appear, followed eventually by Finder. As everyone knows, after pressing the Mac's power button, a chime is heard. I first noticed a change in the boot process after installing the 5770 graphics card. ![]() In preparation to diagnose my fan issue, I went ahead and "flashed" the PRAM, and reset the System Management Controller (SMC) for good measure. It has 6 GB of RAM - plenty for my purposes - and I run system maintenance routines weekly to correct permissions, etc. The Mac Pro is fully updated, running OS X Snow Leopard, 10.6.7. ![]() recommended the ATI Radeon HD 5770 as the best/only replacement option available for the Mac Pro 1,1), I've been having graphics card issues which prevent me from running (or more accurately, viewing) pre-boot processes, such as Apple Hardware Test. ![]() Unfortunately, ever since I replaced my old graphics card with a new one (The nVidia GeForce GT 8800 for Mac, which had worked great for years, "burnt out", and Apple Corp. ![]() After posting at, I was encouraged to run Apple Hardware Test to test for any hardware faults. Hi, Ive been experiencing some fan spin-up issues on my Mac Pro 1,1 (late 2006 1st gen. ![]()
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January 2023
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