At 15:11 -0800 1/31/03, Dennis McLaughlin wrote:
>Is it possible to run a PowerMac 8500 without a
>keyboard/mouse or monitor plugged in? I just received
>one but I must purchase a Mac-to-VGA adapter and an
>ADB keyboard. When I fire it up, the hard drive starts
>up, the cdrom will eject when the button is pressed,
>etc. but there's no 'Apple' chime and no drive
>activity (like when the OS is loading).
>
>I'll buy a video adapter for it tomorrow but until
>then, I want to know if it simply won't start without
>these.
>
I saved the following from a list about 5 years ago.
>Much has been asked/said yesterday and in the past regarding the curious
>thing of running a headless Mac Server and not being able to connect via
>TB2.... Actually this is the same thing everyone would see even if you
>were not using TB2. Try taking your PowerMac and rebooting without the
>Monitor ON. When the drive stops churning, turn the monitor on -- You'll
>find you have no video.....
>
>Why ?
>
>The Mac's circuitry attempts to capture the "Monitor's" characterisitics
>and initialize the system parameters associated with the monitor. Not all
>Macs have this circuitry. The older systems set the parameters to the
>Apple RGB Montior (14" I believe) if a monitor was not detected at startup.
>There is a Control Panel out there ("Video Sync" I believe) which can
>perform this same function on some older Macs -- make sure yours is
>supported. The Software is NOT Supported, but is located at:
>
>ftp://ftp.info.apple.com/Apple.Support.Area/Apple.Software.Updates/US/Macintosh/
>Unsupported/
>
>If you are a little reluctant to do electrical things on your own or you
>are related to Tim the "ToolMan" Taylor (Home Imrpovement) you can go out
>and buy the Video Adapters mentioned, OR if you like to do things on your
>own...or you are in fact Tim Taylor...
>
> 1) Purchase Video Cable Plugs ~$4 / $5 (Plug casing and jumper wires)
> 2) Place a jumper and resistor (2K to 10K ohm/12V) in-line
> between Pins 4 and 11.
> 3) Run a ground wire from your jumper to the metal casing.
> 4) Screw the Plug Casing together.....
> 5) Plug into the Video Port.
>
>You now have your own "Monitor Plug". Make as many as you need for each
>Mac....
>
>
>-Shawn Geddis
> President - Pearl Solutions, Inc.
> Networking Consultants / Web Presence
> 703.449.0471
> mailto:[EMAIL PROTECTED]
> http://www.uinteract.com/
--
Roger
Lovettsville, VA
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