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mGuillaume

macrumors newbie
Original poster
Apr 11, 2020
4
0
Hello,

This A1176 Mac Mini is running Boot Camp with Windows Xp on one side and Mac Os X Snow Leopard on the other.
I can hear the chime at startup. Hooked up to a VGA monitor, the screen stays black for about 45 seconds. Then I can only see a flashing horizontal line every 3 or 4 seconds, on different positions each time. If I press the Power button, the Mini goes to sleep. After hitting a keyboard key, the Mini wakes up and I can see my Snow Leopard desktop.

I've tried several startup key combinations, using two different USB keyboards, hooked on the first USB port next to the monitor port, but if they ever did something, I can't tell because of the black screen.

If I boot on Windows Xp, nothing shows up either until the Xp logo and loading bar screen, then it's all good.

I hadn't used this machine in several years. I kinda remember issues with the CD drive, which I wouldn't mind disconnecting from the motherboard.
Also, at startup, I sometimes hear loud clear noises, which, as a French native speaker, I would describe as a "tak.... tak... tak... " sound, repeated a few times only before they stop.

As advised on this post over at Apple Discussions, I tried and reset SMC and NVRAM. I can't reach the Apple Hardware Test for lack of display.

Please tell me if I can give any more information to help you help me solve this!

Thanks a lot. :)
 
Last edited:
Solved by removing the (defective?) DVI to VGA adaptor and using a DVI cable instead of a VGA one.
 
Mmh, using either this DVI to VGA adaptor:
dvi-to-vga.jpg


Or this one:
dvi-to-vga-and-dvi.jpg

The problem occurs.

Could it be a software issue?
 
I ran the Apple Hardware Test (version 3A102), brief and extended ones, and no problem showed up. What could I do next?
 
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