Hard-drive not spinning up at ATA100. Need new LogicBoard?

Question

Power Mac G4 MDD

This Power Mac G4 has Mirrored Drive Doors.

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Jan Bernert @janbernert

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Veröffentlicht: 3. Aug 2010

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Hard-drive not spinning up at ATA100. Need new LogicBoard?

Hello everyone,

I've got a MDD (DP 867 / 133MHz FSB) with a harddisk not spinning up when connected to the ATA-100 port. At the ATA-66 it spins up , but no target disk function / no boot up. When placed into an external hard-drive bay it works fine.

LogicBoard issue ?

If so ..

May it be possible to fit a FW800 LogicBoard (1474a) into a MDD with an installed LogicBoard "820 - 1380-A" ? Cutting out that port being compulsory . Are there compatible LogicBoards to fit in (eg. 820-1453a)?

Regards Jan.

Beantwortet! Antwort anzeigen Ich habe das gleiche Problem

Ist dies eine gute Frage?

Ja Nein

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2 Kommentare

Supplemental.

The system does seem to not respond to ANY inputs from keyboard, caps lock not working, fans speed up, heat-sink get warm after some time.

4. Aug 2010 von Jan Bernert

All the mentioned steps would be helpful if only ribbon cable / harddrive or PMU error where present. This is obviously not the case here.

Closed.

Thanks for you contributions, much appreciated .

Jan.

5. Aug 2010 von Jan Bernert

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1 Antwort

Gewählte Lösung

mayer @mayer

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Veröffentlicht: 3. Aug 2010

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Try double checking and exchanging the HD ribbon cables.

War diese Antwort hilfreich?

Ja Nein

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5 Kommentare:

Good to see you back. +

3. Aug 2010 von rj713

Thanks for your reply !

No change at all .. tried all ATA ports - disk spins up on the 33 and 66 ATA channel, and remains silent on the ATA 100. It even starts when cable is unplugged while the computer is running.

3. Aug 2010 von Jan Bernert

Will it start up from the optical drive? Insert disk & hold down "C" key. I have two of the dual 1.42. logic board 630-4643

3. Aug 2010 von mayer

I found some good prices here: http://macbookfreak.com/mdd-motherboard-...

3. Aug 2010 von mayer

I thought about this one >> http://cgi.ebay.com/ws/eBayISAPI.dll?Vie... <<

are all the boards (FW400) compatible to the 820-1308a? Do you've got a spare board for me?

4. Aug 2010 von Jan Bernert

Einen Kommentar hinzufügen

Supplemental.

The system does seem to not respond to ANY inputs from keyboard, caps lock not working, fans speed up, heat-sink get warm after some time. — Jan Bernert
All the mentioned steps would be helpful if only ribbon cable / harddrive or PMU error where present. This is obviously not the case here.

Closed.

Thanks for you contributions, much appreciated .

Jan. — Jan Bernert
Thanks for your reply !

No change at all .. tried all ATA ports - disk spins up on the 33 and 66 ATA channel, and remains silent on the ATA 100. It even starts when cable is unplugged while the computer is running. — Jan Bernert
Will it start up from the optical drive? Insert disk & hold down "C" key. I have two of the dual 1.42. logic board 630-4643 — mayer
I found some good prices here: http://macbookfreak.com/mdd-motherboard-... — mayer
I thought about this one >> http://cgi.ebay.com/ws/eBayISAPI.dll?Vie... <<

are all the boards (FW400) compatible to the 820-1308a? Do you've got a spare board for me? — Jan Bernert

Power Mac G4 MDD

Hard-drive not spinning up at ATA100. Need new LogicBoard?

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