Recent content by rsolberg

Speaking of active vs passive cooling on these 601s, I vividly remember burning myself on a 6100's CPU heatsink. Not just "ow that's hot!" but enough of a burn on the side of my hand that that it left a mark.

As for the type of ROM ICs used here, they're almost certainly 27 series EPROMs. I think they would be very unlikely to be mask ROMs given limited production numbers, plus the fact the sticker says "PROM" on it. They're also very unlikely to be EEPROMs as those were fairly exotic at the time...

Caveat: this was two years ago, but I found two or three of these mixed in with hundreds of assorted laptop optical drives at the Seattle REPC location. I was hoping for the G3 version to fit my Wallstreet at the time, so I passed them up. They don't have online inventory, so this (potentially...

My early 2021 posts in this thread and others on the topic have been lost, so I'm doing a little mental reconstruction here. I'm using the extension on my PowerBook 1400 in Mac OS 7.6.1 and 8.6 with great success along with a WiFi module from 8devices called the Centipede. It's based around a...

Me too.  As long as the ID and termination power were set appropriately, the drive I tested mounted CDs in Mac OS 7.6.1, 8.1, and 8.6 on a variety of Macs without modifying the Apple drivers or installing third party ones.  It worked on 7.5.5 using the Toast 4 driver and in 7.1 using the CD...

Panasonic didn't have a Mac driver for these things as far as I know.  I played around with a similar model and found that the PC Card SCSI adapter wasn't particularly Mac friendly, so connecting directly to the Mac's SCSI was a must.  I'd try FWB CD-ROM toolkit 3.x or 4.x and see if that does...

Does it make any difference if USB peripherals are connected during boot?  I'm just curious if it's a possible issue with USB extensions rather than the presence of a Cardbus device.

Awesome! Usually I try a keyword search of the web archives.  That didn't work so well, so I went to Belkin.com circa 2002 and worked my way back in time until the download page product category selector worked properly.  I wasn't expecting the downloads to be archived, but in this case they...

https://web.archive.org/web/20000829060246/http://www.belkin.com/support/tech/USBdownload.html Looks like that should do the trick :-)

If you can find quality replacements for everything within budget, then go nuts on it.*  If I recap mine, I will probably do it in stages to try and identify the failed components, starting with the output filter caps.  I may just bite the bullet and pick up an oscilloscope so I can measure...

The capacitors clustered around the output wire harness are the output filter caps and are one of the more likely suspects if the voltages looked okay.  In your photo, a bunch of them look domed up - unless it's just a trick reflection.

That's actually something this thread prompted me to look at today -- which components fail in these supplies.  Based on forum posts, it seems like output filter capacitors are a common point of failure, along with MOSFETs and sometimes diodes/bridge rectifiers.  It seems to me that Apple...

Negative shutdown IDs indicate that hardware issue prompted the shutdown and -122 indicates the PMU identified an issue with the power supply.  Typically it means a bad power supply, but can also be a bad PMU.  My Quicksilver is currently dead due to its power supply completely failing.  I think...

Have you got system back up and running as it was before you pulled the CPU?  If you can boot in OS 9, you could try running something CPU intensive to see if the problem is overheating.  I'd do that before going down the path of removing the heatsink and repasting it.  It's not a bad idea to...