Recent content by MBongo

Black’s not so bad. Here’s one of the last B&Ws that I resurrected, that I like to refer to as a G3 “B&B”. [As in...“Black & Blue”.];)

Here’s a few tidbits that might be of some relevance, or even possibly welcome help. If you do not have the original OS installer, and IF you are planning on wiping and clean-installing the OS — you might install from an original restoration installer for the B&W first, as opposed to just using...

In no particular order, here… All wires from PSU to mobo not scraped, shorted, exposed - especially around hinge area? All cards removed except video card, its contacts all cleaned? One stick of RAM tested in any other slot than J20? All PSU connections to the mobo clean and good? NO network...

Yes, I have carefully used a soft bristle toothbrush with both DeoxIT - D100L and then also 91% isopropyl alcohol. (One or the other and sometimes both.)

Pins might look normal to the naked eye — but no harm in carefully cleaning them anyway… as oxidation, corrosion, etc. can and does take place in these now 23 year old machines. Another oddity is that CPU daughtercards warp… and applying slight, yet brief downward pressure (by hand) to the...

BIG CONGRATS! Well done.

Yes. Could be the RAM. Think that all of mine are running with PC2700. And they’re all 1.25 GHz & 1.42 GHz dual CPUs. But I’d suggest that you’d re-seat everything and zap the PRAM (if it will allow that). And I’ve forgotten the actual miniscule value of R676 but it isn’t quite zero (but very...

Author seems to have difficulty posting here, so here are mirrored links covering this topic: https://system7today.com/forums/index.php?topic=4125 (images linked) https://macintoshgarden.org/forum/system-7-natively-boots-the-mac-mini-g4 (images)...

Thanks @obsolete. I’ve had very good results when only replacing the first five caps noted in your list (all Teapo caps here in an AcBel QS PSU) even before obtaining an ESR meter afterwards to actually test them. Of the five caps pictured below, only C13 appears to not have domed like the other...

Snip / de-solder / remove… R676 from the backside of the 867’s motherboard to accomplish 167 MHz bus speed. R676 already absent from other MDD mobos (below). Then possible to replace original CPU with a stock 1.25 GHz or even a 1.42 GHz processor transplant.

Umm ???

Might try https://macintoshgarden.org/apps/machspeed-control-combo too.

I’ve never had any problems swapping QS CPUs. I’ve four working Quicksilvers and I don’t think any of them have their original CPU daughter cards (and all of them are now B mobos too.) The last one acquired was a 733 MHz which I upgraded to a 933 MHz… IIRC. The rest are… also a 933 MHz, a 1 GHz...

If it is in great shape and boots / works well - I’d say it’s very price dependent. A good to great price for one you can actually see - versus one that needs to be shipped? Well, it’s the old “bird in hand, worth two in the bush” adage. And a 2002 Quicksilver should have a “B” motherboard…...

Image courtesy of GorfTheChosen (here) and from MacOS9Lives.com http://macos9lives.com/smforum/index.php?topic=5341.msg39076#msg39076 Hopefully his image is from PSU similar to yours. (There are various QS PSUs.)