I've got a very crazy weird issue that is intermittent and kind of hard to explain so I'll try to word it as best I can. I have never been able to figure this out in all these years.
I have a good ol se30 that I recapped many years ago and fully recapped the analog and power supply the voltages are great. It has 68mb of ram, rominator, scsi2sd, diimo50 card and I have a radius pivot color card.
The problem is after a while the radius monitor will flicker and the color becomes slightly discolored until which point I restart or shut it down the next time it starts back up the screen is completely grayscale, the control panel still shows its set to 256bit color but its displaying in grayscale. This issue happens even without the diimo50 rominator and scsi2sd installed with just the radius card by itself. I also have 2 different radius pivot color cards, I have the se30 version And the iisi card modified to fit in the se30. I have tried Both the original v1.0 rom and v2.6 rom so I'm pretty sure its not an issue with either of the radius cards or any of the other ad-ons interfering. This also happens with any different monitor I use either an original apple CRT monitor or a modern LCD.
The only ways I can get it back to color mode are: switch the slot address on the radius card with the jumper settings Or Remove the radius card and boot without it, then the next time I start up with the radius card installed or with a different slot address its back in color, until later on it happens again. This happens randomly anywhere from 10 minutes of running to an hour or two of running and anywhere in between. Sometimes it will be back in color after the macintosh sits there turned off for a very long time. sometimes it doesn't.
The strangest part is this Only happens when the back of the se30 case is on. When the case is off and opened up it never happens. I don't think there is a heat issue but it might be a factor. The fan has good airflow.
Could it be that the case is creating an EMI Shield that might be containing static interference from the monitor or other power parts that might be getting into either the radius pivot cards or the logic board itself? I do have both shields on the analog board and the logic board. What parts or chips on the logic board might even effect this?
This is such a weird issue I'm really looking for you pros who know every little part and exactly how the macintosh se30 logic board works that might have any clue at all or any info that might help me fix this. It's so random and strange and annoying. I don't have another logic board around to swap and see if that even has anything to do with it or it might just be my crazy bad luck with computers and get rare issues that no one else ever has.
If we can't figure this out no big deal I have been dealing with it for years but any information would be greatly appreciated.
Thanks!
I have a good ol se30 that I recapped many years ago and fully recapped the analog and power supply the voltages are great. It has 68mb of ram, rominator, scsi2sd, diimo50 card and I have a radius pivot color card.
The problem is after a while the radius monitor will flicker and the color becomes slightly discolored until which point I restart or shut it down the next time it starts back up the screen is completely grayscale, the control panel still shows its set to 256bit color but its displaying in grayscale. This issue happens even without the diimo50 rominator and scsi2sd installed with just the radius card by itself. I also have 2 different radius pivot color cards, I have the se30 version And the iisi card modified to fit in the se30. I have tried Both the original v1.0 rom and v2.6 rom so I'm pretty sure its not an issue with either of the radius cards or any of the other ad-ons interfering. This also happens with any different monitor I use either an original apple CRT monitor or a modern LCD.
The only ways I can get it back to color mode are: switch the slot address on the radius card with the jumper settings Or Remove the radius card and boot without it, then the next time I start up with the radius card installed or with a different slot address its back in color, until later on it happens again. This happens randomly anywhere from 10 minutes of running to an hour or two of running and anywhere in between. Sometimes it will be back in color after the macintosh sits there turned off for a very long time. sometimes it doesn't.
The strangest part is this Only happens when the back of the se30 case is on. When the case is off and opened up it never happens. I don't think there is a heat issue but it might be a factor. The fan has good airflow.
Could it be that the case is creating an EMI Shield that might be containing static interference from the monitor or other power parts that might be getting into either the radius pivot cards or the logic board itself? I do have both shields on the analog board and the logic board. What parts or chips on the logic board might even effect this?
This is such a weird issue I'm really looking for you pros who know every little part and exactly how the macintosh se30 logic board works that might have any clue at all or any info that might help me fix this. It's so random and strange and annoying. I don't have another logic board around to swap and see if that even has anything to do with it or it might just be my crazy bad luck with computers and get rare issues that no one else ever has.
If we can't figure this out no big deal I have been dealing with it for years but any information would be greatly appreciated.
Thanks!