If the HDD (assumed to be your internal hard disk drive and to be the only HDD installed for testing purposes) was connected and powered during your test:
1. all external SCSI devices should have been disconnected
2. the ROM (C-ROM drive) should have been plugged in to the middle connector on the cable, located in between the mobo (system/motherboard) and the HDD.
3. We'll assume the HDD is configured properly, terminated and set to SCSI ID 0, if it was booting properly before the test, so:
4. Unhook the ROM's signal and power connections.
5. Boot up to verify that the HDD is still functioning properly.
6. If you are online it probably is, but if you are online using another computer, download SCSI Probe 3.5 or some other i.d. test utility and copy it to a floppy.
7. If you are online using the 650, download, install, and run a utility to verify that the internal drive is set to SCSI i.d. 0 and copy it to a floppy.
8. If you use SCSI Probe, it will also give a rough indication as to whether your SCSI chain is properly terminated.
9. If you have a bootable CD and/or a bootable floppy (the bootable disk tools floppy from the system install set for the system software your 650 is running is something you should ALWAYS have available), get them out and put them with the SCSI utility floppy.
10. Disconnect the signal & power cables from the HDD and connect them to the ROM, use exactly the same cable connector on the signal cable that was connected to the HDD for this procedure. NOT the middle one, use the one farthest from the mobo and use the power connector from the HDD also for this test.
11.If you have a bootable CD, put it in the caddy and the caddy in the drive and attempt to boot from the CD.
12. If it boots from the CD, go to step 20.
13. If the 650 won't boot from the CD, try the bootable floppy
14. If the system boots from floppy, you'll need to do the floppy shuffle (change floppies repeatedly until the mac is convinced that it can run the program on the non-system floppy and it stops telling you it wants the floppy that's not in the drive...blech!).
15. If you can run the utility go: to step 20.
......
20. Run the test on the floppy (I like SCSIProbe 3.5 for this test on a 650 level machine) and it should tell you what the i.d. setting is on the ROM. It's unlikely that it's set to 0 (HDD) or 7 (mobo SCSI controller).
21. If the ROM is set for either of those two that's your problem, but the test probably won't be able to tell you if it's set to 7 because that is a worst case scenario. go to step 30
.....
30. If the ROM is setup for i.d. 1-2-3-4-5 or 6 that's not a problem, unless it conflicts with an external SCSI device that you want to reconnect after testing and installation. go to step 40.
.....
40. Check for a flashing message that says the bus is not terminated. Whether you see it or not, you now need to figure out if your drive is terminated and make sure that it isn't.
41. If your ROM was terminated, that was your problem and more than likely you've located 2 terminators (resistor packs, they look kinda like the profile of a centipede...I'm getting too tired for this... SOMEBODY HELP) When you're absolutely sure you've identifies these packs, you'll probably need to remove them (if they're what I think they are) or find a jumper or switch to disconnect them if they or their equivalent are permanently attached. go to step 50.
50. Re-assemlble setup in the "should have been" configuration outlined above.
51. Try to reboot from and see if the something works somewhere.........
52. go to step 60.
60. Follow the advice in the link somebody probably posted while I was putting this kink in my neck.... I ain't even gonna look......
Good luck, hopefully this info will give you a start.
If the level of this post was too simplistic, I hope you and your dad are not offended and I apologize in advance.
Troubleshooting is a very one-simple-step-at-a-time-in-just-the-right-order kinda thing.
Just remember the only stupid questions are the ones that don't get asked AND the questions from those who refuse to learn even enough about any subject to enable them to ask an INTELLIGIBLE question, never mind an intelligent one.
This reminds me of when my 5 year old "pooter tek" helped me crack cases and installed cards (albeit pc cards) "all by myself".
jt
p.s. Any of the above is fair game, any and all correction, revision or any help available is appreciated in advance, but leave the editorializing and the schmaltzy stuff alone! I'm tired and cranky and you DON'T want to start up with me right about now.
pls help me!
Posted - 12 Jan 2002 : 12:01:06
)
u
(jt)
68k of the Week: kastegir's PowerBook 180.