Okay. For the heck of it, I re-buzzed these two traces, and lo-and-behold... the SCSI DMA line was not connected to the GLUE chip. One wire-wrap-wire soldered into place, and Bammo... it booted from the SCSI drive! HUZZAH!
Now, it seems to have power glitches, so I suppose I need to recap the analog/power board too. heh. Thanks to all of you again for helping me track this down, and to get reacquainted with an old friend! -s On Saturday, November 9, 2013 9:50:07 AM UTC-5, Notgoing Totellyou wrote: > > check continuity between these 2 traces > if you don't get any, then run patch wires as seen here. > and then your scsi will probably work. > > http://68kmla.org/forums/download/file.php?id=5438&mode=view > http://68kmla.org/forums/download/file.php?id=5439&mode=view > http://68kmla.org/forums/download/file.php?id=5440&mode=view > > SE/30 has issues with leaking cap goo, causing via and trace rot. > so i would check lines going too the scsi chip before you assume its the > scsi I/C is bad. > > SE30 > Schematics.zip<http://maccaps.com/MacCAPS.COM/Schematics_Bonus_Info_files/SE30%20Schematics.zip> > > > > Charles > MacCaps.com > > > > On Nov 9, 2013, at 8:10 AM, J.S. Garrison wrote: > > That's why I mentioned going with either another, newer Mac that takes a > SCSI drive, or the Pentium II or III PC with the advantage of being able to > use the bootable CD of MHDD and the Adaptec SCSI (50 pin) Card. I have also > used an external SCSI CD ROM case, plugging in the hard drive in place of > the CD ROM. > > Once you've acertained that the physical parts are not damaged, (SCSI > cable, motherboard socket pins, hard drive pins, seeing that terminators > (hard drive, not external drive case/internal motherboard) are present, > what you're left with is the software problem with the hard drive's > formatting. > > I don't trust, so I don't depend on, Apple's Drive Setup. I do trust > Silverlining for it's seldom-fail drive prep ability. Lido 7.5.6 too. MHDD > in a PC too because it, with the right Adaptec card, will positively find > and prep a drive, unless it's controller card > is fried or the jumpers are wrongly set or missing. > > Most hard drive makers, or third party collectors/repair people will have > settings info online. Google is your friend there. > > Yes, I'm advocating the purchase of a second, newer Mac or the P2/P3 PC > and Adaptec Card. Mac Collecting can be a > costly hobby. But without the right tools you get more dead ends and > frustration than you need to in diagnosing a problem > that keeps your Mac from, in your case, seeing the hard drive. > > And maybe there IS a problem with the SCSI chip on the motherboard. But > when I did a lot of refurbising, this was never the case. > > Jeff > > > ------------------------------ > *From:* Scott Lawrence <yor...@gmail.com <javascript:>> > *To:* vintag...@googlegroups.com <javascript:> > *Cc:* J.S. Garrison <garri...@yahoo.com <javascript:>> > *Sent:* Friday, November 8, 2013 8:21 PM > *Subject:* Re: SE30 SCSI Repair Questions > > Well, like I said, I know the drive, scsi cable, power supply are all > good, since I have my SE board in that case right now, running System 7.1 > off of a 340 meg hard disk. (Which I installed using that SE/30 before it > failed.) > > I'd love to try out those formatting tools, but I can't get the machine to > see any device on the SCSI chain. HDSC setup and the hacked version of > HDSC setup both claim that the scsi chain is not terminated. > > It's not that the drive isn't formatted, it's got a working install of OS > 7.1. It's just not visible with the SE/30 board. > > -s > > On Friday, November 8, 2013 10:08:36 PM UTC-5, The Old Geek wrote: > > ccee > The method I used is, with a known-working internal and external floppy > drive, is boot a system 6.0.8. disk find and use the Micromat system 6 > removable and internal disk utility. > > Another, easier to find utility is the usually fail-proof La > CieSilverlining which I will use in a bootable System 7.5 environment. If > that drive is mountable, the La Cie utility will "indoctrinate" it to a > mounted condition. > > Many folks don't like Silverlining because of the problems it manifested > in System 7. But it, along with Lido 7.5.6, which wants system 7.1 to OS8.x > to work, almost always, for me anyway, made a rogue hard disk appear on the > desktop. > > I want to be absolutely sure that the hard drive isn't bad so I look at > the SCSI cable, motherboard connector and drive connector conditions (i.e > bent or missing pins), and potentially missing terminators on the hard > drive's controller board. I look at drive-controller jumpers and use Google > to see if these are set correctly (from the maufacturer's site or other > trusted sites). > > To foolproof my testing, I will connect the drive to an Adaptec SCSI Card > in a Pentium II or III PC and run MHDD, which is a bootable Linux-based CD > that checks sectors for condition, and can repair damaged sectors > software-wise, AND format the drive with MHDD. > > This opens the door for the La CieSilverlining to take charge and make a > working drive Mac-accessible, IF it's not toast. > > Jeff > > > > ------------------------------ > *From:* Scott Lawrence <yor...@gmail.com> > *To:* vintag...@googlegroups.com > *Sent:* Friday, November 8, 2013 4:27 PM > *Subject:* Re: SE30 SCSI Repair Questions > > Yes. The drive is running. It does it's startup seek, same as if it were > unplugged or when it was plugged into the SE motherboard. It takes it a few > moments then it shows the ? Mac icon. > > > -- > -- > ----- > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/ vintagemacs.shtml > <http://lowendmac.com/lists/vintagemacs.shtml>and our netiquette guide is > at http://www.lowendmac.com/ > lists/netiquette.shtml<http://www.lowendmac.com/lists/netiquette.shtml> > To post to this group, send email to vintag...@googlegroups.com > To leave this group, send email to vintage-macs+unsub...@ googlegroups.com > For more options, visit this group at http://groups.google.com/ > group/vintage-macs <http://groups.google.com/group/vintage-macs> > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs+unsub...@ googlegroups.com. > For more options, visit https://groups.google.com/ > groups/opt_out<https://groups.google.com/groups/opt_out> > . > > > > -- > -- > ----- > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintag...@googlegroups.com<javascript:> > To leave this group, send email to > vintage-macs...@googlegroups.com<javascript:> > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs...@googlegroups.com <javascript:>. > For more options, visit https://groups.google.com/groups/opt_out. > > > > -- > -- > ----- > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintag...@googlegroups.com<javascript:> > To leave this group, send email to > vintage-macs...@googlegroups.com<javascript:> > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs...@googlegroups.com <javascript:>. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- -- ----- You received this message because you are a member of the Vintage Macs group. 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