Recent content by Fizzbinn

Jealous! Looks like it's in great shape! I've been wanting to add one of these to my collection.

😀 I think you need the 4MB VRAM upgrade for the PowerMacintosh G3 built-in video to do millions of colors at 1024x768

It's a cool monitor! I always wondered if the color scheme was considered for Blue and White G3... Some info about the stand not staying up/potential fix: https://68kmla.org/bb/threads/never-thought-id-see-the-day-studio-display-15-inch-flat-panel-rev-a.44864/

I love the Umax SuperMac c500 as well! I have two, a 180 and a 200, although the 180’s power supply is dead. 🙁 Is it possibly the most compact old world Mac …with two PCI slots? When I was in college in the late 90s we used a c500 as the NAT router for our college newspaper office to get all...

Something like this should work: https://www.ebay.com/itm/396921024428 https://www.ebay.com/itm/236458336933 I did some tests a while back and 100Mbps "Fast" Ethernet does make a difference. These tests were from/to my Raspberry Pi 4 "retro home server" running MacIPRpi (1Gbps Ethernet) with...

Not silly, I would think it should/could have worked, I can’t say for sure where/what the limiting factor is. System 7.1.x (which the PB 150 shipped with) is supposed to support up to 2GB partitions. I know I tried a 4GB industrial card that didn’t work. There is also the possibility that these...

I have larger CF (still industrial) cards in my PB 1400 (8 GB) and Quadra 630 (4GB), formatted with Drive Setup. The PowerBook 150 is an odd duck in its IDE implementation, natively it cannot use any version of “Drive Setup” instead requiring the use of its bespoke “Internal HD Format” utility...

Ditto. I have a Transcend Industrial 1GB Compact Flash card in my PowerBook 150. Definitely had problems with other “regular” cards, larger cards I tried first, either wouldn’t be seen by Internal HD Format tool, would fail format, or would fail when trying to install OS.

This is the stock MC88920? Replacing with MC88916 like this would be need go hit higher speeds? https://www.ebay.com/itm/135168460410 https://68kmla.org/bb/index.php?threads/upgrade-mc88920-to-mc88916-for-lc475-p475-q605-advanced-soldering.48616/

I've had the same experience. I've wondered if it has something to do with the tolerances of the RAM and/or VRAM I'm using.

Thanks. I bought a custom ROM SIMM years ago or my IIsi which I had forgotten the particulars of, it is is a GG Labs SIMM! Its really not doing much in my IIsi other than making is possible to boot from ROM for fun (or if the HD dies, needs troubleshooting...) so I think I will move it over to...

From: https://68kmla.org/bb/index.php?threads/different-rom-se-30.50996/post-574603 In anticipation of receiving a socketed Booster v2 from you (thanks!) I'm trying to make sure I understand how best to make use of the ROM booster feature. Hardware wise there is a jumper for enabling ROM...

Pinout on page 352: MC68040UM PDF µ MOTOROL - NXP Semiconductors

Do you have a PRAM battery installed? I'm pretty sure the LC475 is unique in that form factor in needing a working PRAM battery for video to work. I think folks have some luck with quickly turning the power supply switch on, off, and on again to sort of jump start it without a battery.

You also might want to take a look at this thread for another option: https://68kmla.org/bb/index.php?threads/replacement-power-supply-in-quadra-605.41793/