No problem! Nice to know he's still got that going on the side.
Got them Friday (decided to get both 66.666 and the 71.7948, just to see). and the rest of everything should be here Monday. Also got a solder sucker, so hopefully that plus heat gun makes easy work of the through hole connections.
I'll also have those last two values of capacitor that I missed in my initial inspection of the power supply (but rectified in the parts list), then a working Q700.
Short of finding a TechStep, is there a program that would test the sundry aspects of the system that might be disabled/impaired by an OC over 33 MHz? That wouldn't be identified with a MacBench test or even the Apple Personal Diagnostics? I suppose the only thing relevant to me would be floppy drive control (I'm guessing it effects floppyEmu just as it would a physical drive), ans I don't recall if it does, but perhaps Ethernet.
The Portable was designed to run on battery, not without one and not only using the external psu.
So the main goal of the psu is to keep the battery charged, the original psu (1,5) is more than enough to keep that goal.
Using the 2 A is not an issue if everything else is in good condition (Logic board)
the 3 A is to be avoided, the risk is heavy to blow something.
Gotcha, so, I imagine it would be annoying if you were using this thing with -RWs to make rolling backups or whatever, but for day-to-day burns, probably not that big of a deal.
"Good enough" CD-Rs are extraordinarily cheap in the US at least. (I've got that 100-stack of Memorex discs, which I bought pretty much because I forgot I still had the remains of the other 50-ish stacks, and that was probably $20 or so when I got it -- and it seems like they're a bit closer to $15 now.) so most of the economic reason to use -RWs is gone, though operationally I know they're more convenient. (see also: coryw fighting with blu-ray media.)
*EDIT: So it depends on what your workflow is, basically.
I don't have any other early CD-RW drives. Have you seen this behavior in others? Like if someone looked for a Que! burner or something in SCSI is this something they'd experience, or a pecularity of this specific Sony device?
If I only had one Anyways I found the problem (I had accidental dropped solder on a memory chip, it is visible on the logic board picture above) and the computer now boots to a flashing disk screen. The HD is marked as bad, and it didn't do much than whining when attempted to start it up.
Regarding the PSU there is a long thread from 2011 to 2013 discussing about it. I know the thread is old and more knowledge has been gathered, should one use 2/3A PSU or no?
The problem with the older drives is with the -RWs, not the -Rs. I don't know what changed but basically, if the drive's logo only says "Compact Disc Recordable Rewritable" and not "Compact Disc Recordable Rewritable Hi-Speed" it won't work with -RW discs rated for Hi-Speed operation, even to record a 10x disc at 4x. The -Rs should be pretty much universal: burn a 52x at 4x with no problems (assuming you've got quality media).
I know it's kind of hard to see on a Mac since their drives generally don't have the logo printed on them so you'd have to look up the model number to see what they support. Basically if the drive's -RW section is 4x or less, it's not Hi-Speed and won't burn the Hi-Speed-rated -RW discs at any speed. Should still read them though.