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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Consumer Hardware & Components > can I unplug ADC with power on ?

can I unplug ADC with power on ?
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Dec 2, 2002, 09:53 PM
 
I am using a 17" LCD to plug into my new powerbook via a DVI/ADC
adapter. This leaves my Tower displayless but I can connect to it when I need to via VNC. I have a problem with this setup as when I reboot the Tower it needs the display plugged in when it starts up or VNC doesn't seem to work. Its OK if I pull it out after it had booted. But I noticed on Dr Bott''s site that I am not supposed to unplug ADC while the power is on or I may fry the motherboard on the Tower . Is that correct ? Is there away around the VNC problem ?

Thanks - Michael
     
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Dec 4, 2002, 02:27 PM
 
You can't safely hot-plug ADC (or DVI, which is part of what ADC is). The workaround I would suggest is to use a gHEAD on the VGA port (or on DVI if needed, with adapter).

tooki
     
mmurray  (op)
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Dec 4, 2002, 02:40 PM
 
Originally posted by tooki:
You can't safely hot-plug ADC (or DVI, which is part of what ADC is). The workaround I would suggest is to use a gHEAD on the VGA port (or on DVI if needed, with adapter).

tooki
Thanks for replying tooki - that makes sense to me. But I also found an
AppleCare document 42685 which says to run a Quicksilver
2002 headless you should boot up with the monitor in and then unplug it!
That seems to suggest that you can hot-plug ADC - or am I missing something?

BTW I tried booting with an old mac VGA/mac-monitor adapter - the ones that come with powerbooks - on the VGA port on video card. That didn't seem to be sufficient to make it think it had a monitor on board. I will try and chase up the gHead.

Thanks - Michael
     
Eug
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Dec 4, 2002, 02:58 PM
 
Originally posted by tooki:
You can't safely hot-plug ADC (or DVI, which is part of what ADC is). The workaround I would suggest is to use a gHEAD on the VGA port (or on DVI if needed, with adapter).

tooki
Really? DVI on a PowerBook too? I ask because people seem to do this all the time with no probs.
     
CMG
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Dec 4, 2002, 07:55 PM
 
For DVI, it all depends on your system really. The TiBook is designed to recognize DVI monitor after the system has started up. There is no electrical danger with hot-plugging DVI connector.

With ADC... let's put it this way, I have seen non-monitor ADC device gone up in blue smoke when hot-plugging and un-plugging ADC with the power on.
     
Eug
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Dec 4, 2002, 08:58 PM
 
Originally posted by CMG:
For DVI, it all depends on your system really. The TiBook is designed to recognize DVI monitor after the system has started up. There is no electrical danger with hot-plugging DVI connector.

With ADC... let's put it this way, I have seen non-monitor ADC device gone up in blue smoke when hot-plugging and un-plugging ADC with the power on.
What device?
     
CMG
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Dec 9, 2002, 05:45 PM
 
Originally posted by Eug:

What device?
You will see it in a couple month. I hope
     
   
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