smrieck511
Well-known member
After cleaning, removing the (thankfully unexploded) battery, logic board recap (tantalum polymer), reflowing the solder on the analog board, keyboard and mouse clean, retrobrite...
Today, I booted with the Rominator II and 128mb of RAM.
So far so good but I have a few things left to figure out.
1. I have an occassional seemingly random screen jitter. I do have that burned pin on the CRT connector which I believe is caused by faulty analog board caps...I hope, because I plan to recap that board and the power supply as well. I'm also replacing the connector (parts in the mail). I understand this could be caused by a failing flyback transformer. I looked and listened in the dark and it is not making any sound or arcing when powered on.
2. When I got it, it booted to the question mark. I assumed the inabilty to boot issue was a failed Quantum 40S. After taking that hard drive apart, I confirmed the black goo issue that tends to make these drives fail. So I have no reason to believe there is any problem with the SCSI bus on the board and some evidence to the contrary. Currently I have nothing connected to the SCSI connector on the logic board. When I launched SCSI Probe, It said "Bus Not Terminated" which I assume is a good thing because that sounds like it recognizes the bus but obviously sees it as not terminated since there is nothing connected. Again, I have no reason to doubt the board but that sounds like its doing what it should do with nothing connected, right?
3. Why when booting from the ROM disk, the System Software appears to be using most of the installed RAM? (see pic) Is this normal?
Thanks as always for any assistance/knowledge!
Today, I booted with the Rominator II and 128mb of RAM.
So far so good but I have a few things left to figure out.
1. I have an occassional seemingly random screen jitter. I do have that burned pin on the CRT connector which I believe is caused by faulty analog board caps...I hope, because I plan to recap that board and the power supply as well. I'm also replacing the connector (parts in the mail). I understand this could be caused by a failing flyback transformer. I looked and listened in the dark and it is not making any sound or arcing when powered on.
2. When I got it, it booted to the question mark. I assumed the inabilty to boot issue was a failed Quantum 40S. After taking that hard drive apart, I confirmed the black goo issue that tends to make these drives fail. So I have no reason to believe there is any problem with the SCSI bus on the board and some evidence to the contrary. Currently I have nothing connected to the SCSI connector on the logic board. When I launched SCSI Probe, It said "Bus Not Terminated" which I assume is a good thing because that sounds like it recognizes the bus but obviously sees it as not terminated since there is nothing connected. Again, I have no reason to doubt the board but that sounds like its doing what it should do with nothing connected, right?
3. Why when booting from the ROM disk, the System Software appears to be using most of the installed RAM? (see pic) Is this normal?
Thanks as always for any assistance/knowledge!
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