Power Mac 5400/200 No Keyboard

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Power Mac 5400/200 No Keyboard

My school recently received a Power Mac 5400/200 without any keyboard our power cable. Being the computer nerd, I brought in a keyboard and one of my desktop power cables. I plugged it in and realized I had the wrong keyboard type, but flipped the switch anyway. I heard the screen flick on, but that was it. After doing some research, I learned that the power button is on the Apple ADB keyboard. Is there any way to bypass that and turn the system on without the keyboard?

PowerMac, Mac OS 8.6 or Earlier

Posted on Feb 14, 2018 8:40 AM

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Answer 1

Jan Hedlund

Level 7

24,235 points

Feb 14, 2018 2:23 PM in response to Portaldominates

To begin with, take a look at pp. 11-12 in the manual:

https://manuals.info.apple.com/en_US/0307926APM5400UM.pdf

As you have discovered, this computer is intended for use with an ADB keyboard with a power key.

According to posts by a dtravis7 at http://www.mac-forums.com/other-hardware-and-peripherals/70348-powermac-5400-won t-power.html, a power key on the keyboard (or a remote control) is required with a 5400.

You should not have a problem locating an appropriate ADB keyboard (and, if necessary, ADB cable and mouse) via an online auction site.

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Answer 2

JimmyCMPIT

Level 7

29,306 points

Feb 14, 2018 8:50 AM in response to Portaldominates

it could be the CRT is shot. Do you hear any thing working when you flip the switch on the PSU?

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Answer 3

Feb 14, 2018 8:52 AM in response to JimmyCMPIT

Yes, there is a loud humming then it goes quiet.

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Answer 4

JimmyCMPIT

Level 7

29,306 points

Feb 14, 2018 9:01 AM in response to Portaldominates

IMHO if your device hums, then goes quiet I would suggest you cut your losses with this computer. It's old and if it's in a school with younger students you could have an incident on your hands.

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Power Mac 5400/200 No Keyboard

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