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PowerMac 9600/monitor problem - 2007/12/31 12:25Happy New Year to all! I have a really nice condition 9600/350 I picked up on eBay that seems fine except for one thing. Whenever I wake it or restart it the monitor does not re-iluminate. The machine sounds like it's running but I have no screen so I can't communicate with it. My only option is to shut the machine off. From a cold boot everything works fine. Tried installing a new OS (8.6)-no help. The monitor is an IBM small screen CRT that works OK on other machines. Could it be a bad video card? Thank you for any suggestions.
Carl
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krowmagnum
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Re:PowerMac 9600/monitor problem - 2007/12/31 23:26Your video card is probably ok.
First thing I would do is reset PRAM (hold down command/option/P/R on restart) and it's probably due to replace the PRAM battery on the logicboard. Let the PRAM reset go through a few restarts and that may clear up the problem. If not, let us know what happened, if amything.
And what kind of video card is in the 9600 ?
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triplec
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Re:PowerMac 9600/monitor problem - 2008/01/01 19:59I did replace the PRAM battery a while back. It was subsequently shut down and unplugged. When I started up again date and time are OK. I took your advice and reset the PRAM several times using the keyboard command and using TechTool Pro 3, all to no avail. One correction: it does wake from sleep fine; it is only when I restart that the monitor does not come back. The video card is: IX-Micro Twin Turbo 128 (ASP says: IMS,tt128mb8A). I also have an 8600/300 that I tried with the same monitor etc. and it restarts with no problems.
Thank you krowmagnum, Carl
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krowmagnum
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Re:PowerMac 9600/monitor problem - 2008/01/01 23:04Is it just on a restart that you loose video ? Not on a cold boot ?
Have you tried the card in the 8600 ? (I still think the video card is ok)
If you haven't had the card out I would also try to reseat the video card to make sure it's not loose from shipping.
You can find the Twin Turbo drivers here if you do not have them loaded:
You could also try the card is a different PCI slot. Sometimes in similar boards they work better in the top slot and sometimes work better in the bottom slot.
I have some PCI video cards listed on my eBay auctions usually so if you are looking for a replacement I have several to choose from (ATI & iXmicro) and my eBay ID is macs2much.
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triplec
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Re:PowerMac 9600/monitor problem - 2008/01/03 07:11It is only on a restart when I have the problem and whether I am restarting from the hard drive or from the Mac OS 8.5 CD, makes no difference. As per your advice krowmagnum I tried reseating the video card in the same slot and in another slot-no help. And when I tried the video card in the 8600 everything worked fine so I guess you're right about the problem not being the video card. Any other ideas? Power supply? The power switch itself? Bad RAM? I already tried a different monitor-no go.
Thanks again, Carl
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krowmagnum
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Re:PowerMac 9600/monitor problem - 2008/01/03 10:33My guess is there is a problem with either the RAM or the hard drive. More likely the RAM.
Since you put a new OS install on the hard drive any problems with the drive would possibly have been identified so I would use GaugePro Or TechTool Pro to check the RAM thoroughly. Or you could pull one stick of RAM at a time until the restart problem goes away. hopefully ;-)
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