need help with my Mac Quadra 660av

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ken147's picture
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need help with my Mac Quadra 660av

I hve a Quadra 660av that whenever I plug in a monitor into it the screen remains blank, I know that this monitor work because I pluged it into my PowerPC just to doubble check. any help?

eeun's picture
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Check the Mac's internal batt

Check the Mac's internal battery. Some of the old Macs wouldn't boot up without a working PRAM battery.

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Check the vid card . . .

Hey,

If you mean that the 660AV works and just can't produce video to the monitor, it's probably a mismatch on what the 660 is putting out and what the monitor is expecting. What Power Mac do you use the monitor on?

William
www.williamahearn.com

ken147's picture
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PRAM battery

Where could I be able to buy a computer batery?

ken147's picture
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Re: Check the vid card . . .

Hey,

If you mean that the 660AV works and just can't produce video to the monitor, it's probably a mismatch on what the 660 is putting out and what the monitor is expecting. What Power Mac do you use the monitor on?

William
www.williamahearn.com

I tried it on my Power Mac 8100/80 and it worlked fine

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Re: PRAM battery

Where could I be able to buy a computer batery?

Radio Shack had them, last I heard.

You can also cheat, and adapt two AA batteries to do the same job if you don't mind tinkering.

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Does the 660AV . . .

Hey,

Does the 660AV chime when you start it? Does it work with other monitors?

William
www.williamahearn.com

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Quadra Startup

I tired to get it to work with other monitors but it only works with the Apple 14" monitor that I am currently trying to get to work with it, as for does it chime yes it does.

I am going to try zapping the PRAM to see if that makes it work.

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If it chimes . . .

Hey,

You don't need a battery. What's happening is that the refresh rate or resolution of the monitor is beyond what is currently set for the 660AV. Be advised that the old quad nay not have the juice to power that monitor. There are vid cards for the 660Av but an angle adapter may also be needed.

William
www.williamahearn.com

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I FIXED IT!!!

i was searching on the web and they said that you should try to zap the PRAM, and it worked!! thanks for both of your help.

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