[G4] Power Supply Problem

[James Pacyga]

I would give a PCI controller a shot.  My symptoms only included the 
ATAPI controller.

On Feb 12, 2005, at 10:02 AM, Joel Threatt wrote:

> 10.3.8  started at 10.3.5, also have ran 9.1 and 9.2.2. Its not so 
> much the optical drive as it seems to be effecting all drives, more so 
> the hard drives at first, now any drive directly connected to the 
> logic board IDE ports.
>
> Joel
> On Feb 12, 2005, at 12:15 PM, James Pacyga wrote:
>
>> What OS are you running?   I upgraded (and sorry, but I am not sure 
>> which version at this point as it was months ago, 10.3.4?) and it 
>> caused my optical drive to go nuts.  I thought I would have to buy a 
>> new controller - but once I upgraded again to the next revision, the 
>> optical drive came back with no issues.
>>
>>
>> On Feb 12, 2005, at 9:10 AM, Joel Threatt wrote:
>>
>>>
>>> On Feb 6, 2005, at 10:17 AM, Joel Threatt wrote:
>>>
>>>> I have a Quick Silver '02  dual 1gig, currently at 867 due to a 
>>>> dead processor. I recently had some issues with the drives not 
>>>> spinning up. My constant on/off/pram resets pretty much finished 
>>>> the logic board as well. First I sent the PS to a Mac repairer for 
>>>> the "free" diagnoses. I was told the PS was fine so then I sent in 
>>>> the logic board and after calling them they said the board was dead 
>>>> and it couldn't be repaired. OK so of course they could replace the 
>>>> board so I did that. A few days later I reassembled my QS and it 
>>>> booted and ran fine, much to my relief. After about 5-6 hrs the 
>>>> drives again spun down. Being careful only to do ONE pram reset I 
>>>> proceeded to change cables, change drives, try one at a time. 
>>>> nothing worked. All those drives spun up fine in my one firewire 
>>>> enclosure. A check of the voltages at the plugs showed 4.75v and 
>>>> 9.6v respectively. I tried this with drives connected and 
>>>> disconnected. Curiously enough my internal CDRW runs fine while my 
>>>> hard drives will not spin at all when connected to the PS. Although 
>>>> they work fine in the Firewire. I own a lot of Macs starting with a 
>>>> Color Classic II and had no problems like this occur. This is my 
>>>> first G4 and all this trouble is driving me back towards a PC.   Oh 
>>>> I also checked the battery and it was at 1.2v so it got replaced 
>>>> first thing. Has this happened to anyone else? I figure I am 
>>>> looking at a new PS. Or could the new board have failed like the 
>>>> original? Your thoughts will be greatly appreciated
>>>>
>>>> Joel
>>>>
>>> The computer works well with the firewire drive but now it has 
>>> started to not read CD's. CDRs, commercial disks, nuttin. Another 
>>> question I have is, would using a third party IDE Controller in 
>>> place of the built in controller function.  This problem seems to be 
>>> centered around the on board IDE controller.   Any thoughts.
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>>>
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>>
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>
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