No chime, black screen, fans all running?

Question

Power Mac G4 MDD

This Power Mac G4 has Mirrored Drive Doors.

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R Michael Olexo @rmichaelolexo

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发帖于: 2010年10月15日

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No chime, black screen, fans all running?

I push the startup button on the computer, I hear a motor click or something, and then get no chime, no image, then after about 10 seconds all fans come on. The screen is an older 23" HD Cinema display. There is no paperclip hole in the optical drive to startup from OSX disk. I believe I lost the image when I reseated the Graphics card.

I've replaced:

(2) Hard Drives.

Battery

Logicboard

DP CPU

I've reseated or unplugged and plugged back in:

Computer speaker

RAM in all 4 slots

Graphics Card

Battery

I've reset the:

PRAM

Battery

Logic Board

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score 1 · Answer 1 · 2010-10-15T09:32:42-07:00

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mayer @mayer

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MacHale Enterprises

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发帖于: 2010年10月15日

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This is about the eighth question on this same machine. Try starting up holding the mouse button down to eject the disk drive.

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Yes I know. It takes a while between ordering parts to try solution. I'm still considering upgrade, but want to get the computer working first. I have followed, pretty much everything suggested except starting up from OSX disk, which I can't do unless tray is open. Depressed mouse, pushed start up, tray did not open.

由 R Michael Olexo 完成的 2010年10月15日

Took out optical drive, put OSX disk in tray, nothing. Hooked up firewire cable to Powerbook G4, not recognized as remote hard drive.

由 R Michael Olexo 完成的 2010年10月15日

Good beginning +

由 rj713 完成的 2010年10月15日

I've never seen a full sized disk drive without an eject hole. What is the brand and model number?

由 mayer 完成的 2010年10月15日

I don't know the model, when I took optical drive cage out, there was an eject hole I could use, the way it was built with the hole pretty low on unit, the hole was covered by the frame of the (2) mirror doors. It is not the original optical drive, but has been working fine for several years.

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frank99 @frank9958864 声誉积分: 863 7 6 2 · Answer 2 · 2010-10-15T11:11:37-07:00

frank99 @frank9958864

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boot with only one chip of ram and try using different ram.

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I don't know the model, when I took optical drive cage out, there was an eject hole

I could use, the way it was built with the hole pretty low on unit, the hole was covered by the frame of the (2) mirror doors. It is not the original optical drive, but has been working fine for several years.

由 R Michael Olexo 完成的 2010年10月15日

Took (3) RAM chips out, left (1) in, no change. Will locate a different RAM chip and see if that works.Will have to order, so will take a few days. Mr. Mayer also suggested this previously.

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