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Two se30's, Same symptoms, both Toasted?

pudding

Member
Hello all, I am pleased to be a new member of your forum, actually a re-born 68K member (was a member years back, got lost, and now here I am again). and I hope that I can get a hand with a problem.

I had 2 SE30's which I upgraded and got running w/ 80megs each and 10 baseT prior to storing them a few years back (4 or 5). Now when I crank them up I get horizontal lines on both of them!

I pulled the memory back to 32 megs and removed the Comm Card on one of them and reset the via progam switch and I got a clear screen but no drive.

I booted disc tools Floppy and Got the screen up and it is stable but then when I go to re-format the drive it fails to write and fails to mount after re-format.

I have tried 3 hard drives, two I know had Sys7.1 on them and neither was recognised and neither could be succesfully re-formatted and mounted.

I have removed the battery to re-set pram, I have tried different 'tool kit' floppys, I have tried external hard drives with physical terminators, and I still can not get a hard drive to mount.

I will try all new memory sticks next but I could sure use a fresh idea or two.

Thanks for any thoughts.

 

equill

Well-known member
A few first lines of rescue:

If the Macs have been stored without an umbilical cord to the mains voltage supply, replace the half-AA 3.6V lithium PRAM batteries. Removing dead batteries removes an impediment, but provides nothing to maintain PRAM settings.

Remove and clean the contacts of the RAM cards with a pencil eraser, blow out their slots, and reseat the cards carefully. System RAM is also used for video in the AIO Compact monochrome Macs. If you use only one bank of RAM there must be four cards in bank A. There are few early Macs that can use 8MB cards.

Make sure, while you are inside the Mac, to check that all cable connections are intact and well-seated. That includes the video card on the back of the CRT, and connections to the analogue board. Inspect the logic board for signs of leaking electrolytic capacitors, shown by stains, corrosion and/or goo on the board.

Make sure that the HDDs have not been jumpered, unless you are prepared to live with a SCSI ID other than 0. If their data cables have cut-outs in them for old, old drives, replace the cables. Do the drives spin up when powered?

Reset ('zap') PRAM at the next startup: command-option-p-r held down immediately after switch-on, and released after three more chimes. If there is a working and bootable hard drive present at SCSI 0, that should find it.

Your Disk Tools floppy, in case you have to update/replace the HDDs' drivers, or reformat HDDs, will also help you to check the function of the FDD, and give you an alternative startup volume, as you are aware. If only the FDD works, System 6.0.8 can be downloaded for 1.4MB and 800kB floppies.

If you wish, post back with your progress.

de

 
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