BigBadBiologist

@BigBadBiologist@bitbang.social
426 Followers
197 Following
2.1K Posts
Big Bad Biologist. Doggo daddo. Alliteration Aficionado. (I'm a retro computing enthusiast that livestreams a lot of my restoration work, normally at noon eastern on Saturdays)
My Youtube channelhttps://www.youtube.com/@BigBadBench
Rudy's Retro Intel sent me one of his SE30 Peeker boards which is really fortunate, because I now have three Mac SE/30 machines to work on! Let's build it, triage two of the SE/30s, and recap one of them Saturday (12th) at noon eastern. #vintagemac https://youtube.com/live/FWj7kNQ3pk4?feature=share
Rudy's Retro Intel sent me one of his SE30 Peeker boards which is really fortunate, because I now have three Mac SE/30 machines to work on! Let's build it, triage two of the SE/30s, and recap one of them Saturday (12th) at noon eastern. #vintagemac https://youtube.com/live/FWj7kNQ3pk4?feature=share

I’m going LIVE with Trina of Trina’s Technobabble in 5 mins!

https://www.youtube.com/live/7xd-Thdbvws?si=rKewRXO2w4fQH3Eq

Does the Power Mac G4 Work?

YouTube
Too much stuff! Final tally:
1x Color Classic
2x SE/30s (one looks to have a video card)
1x Classic II
1x Classic
6x SE (3 of which are FDHD/Superdrive)
Imagewriter II in box
7x Apple Kbds
5x Apple Kbd IIs
5x Apple Extended Kbds
1x Plus Kbd
1x 128/512 num pad
Lots of other mice
1x ext floppy
#VintageMac
It boots Windows 10 32bit! It will not boot 64 bit.
I finally got a chance to modify some heatsinks and try to power up this prototype VIA VT8607B motherboard with L4700 quad core CPU that @shyra gave me. Did I blow it up? https://youtube.com/shorts/caOuUq3rx9k
Before you continue to YouTube

New #BlueSCSI release https://github.com/BlueSCSI/BlueSCSI-v2/releases/tag/v2025.07.07

Highlights:
* USB<>SCSI Bridge
* USB Thumb Drive Mode
* SD Bootloader
* 200MHz default
* Auto Buttons on all HW
* FAST20 speed
* Interactive console

I'll highlight a few of them in this post:

USB<>SCSI Bridge

If you were holding on to those rare and expensive USB<>SCSI bridges for your retirement fund, sorry! Now your BlueSCSI can do it with a one line config.

First person to boot Windows off a Quantum Fireball SCSI drive over this gets a prize!

https://github.com/BlueSCSI/BlueSCSI-v2/wiki/USB-Bridge

USB Thumb Drive Mode

It's sometimes annoying to pull out the SD card when you want to edit a config file or copy a small file over - now BlueSCSI acts like a USB thumb drive when connected to a computer and will present the SD card or even the Images to the modern PC.

https://github.com/BlueSCSI/BlueSCSI-v2/wiki/USB-Thumb-Drive-Mode

SD card bootloader

Ya, we let this one go too long, had a bug and wanted to re-do the entire thing but we ended up just adding it back. Update by placing a bin on the sd card.

https://github.com/BlueSCSI/BlueSCSI-v2/wiki/Updating-Firmware#sd-card-methodFirmware#sd-card-method

200MHz default

The Pi Foundation said 200MHz is good and so many project already OverClock way beyond that, we thought we'd catch up now too. Can clock up to 250MHz now too for FAST20 support - up to 18MB/Sec

https://github.com/BlueSCSI/BlueSCSI-v2/wiki/Ultra-SCSI-Fast20-OverClock

Auto Buttons on all HW

Ever wanted a button to eject your CD or removable media? Well now you can add it to every hardware rev and no configuration is required!

https://github.com/BlueSCSI/BlueSCSI-v2/wiki/Buttons

Lastly this one is mostly for developers (for now) but an interactive console - just type 'h' when connected via a USB Serial program

There's lots more - checkout the release notes! /🧵

#SCSI #retrocomputing #vintagemac

Release v2025.07.07 · BlueSCSI/BlueSCSI-v2

NOTE: Docs and release notes are currently being updated. Please be patient while everything is updated. NOTE: Build updated to fix accidental under clock on Pico2/2W Please use 2025-07-07_e5990048...

GitHub
I have a number of old Macs that need repairs, so let’s see if I can fix at least one of them tonight. And since some of us are recovering from a holiday weekend, I’m going to start earlier than usual. I’ll be live this evening starting at 6PM EDT! https://www.youtube.com/live/fAHXbckMRig?si=sExGIT7WyAfvGIbs
Old Macs Repair Stream: Because My Number of Broken Macs is Growing, Too! (Computerized Start™ Live)

YouTube

I’ve been testing the Apple Scanner with my Quadra 605 err.. Classic/040 and noticed it wouldn’t work with Soft 475 Overclock enabled. Turns out I need to also move a resistor on the motherboard to divide the SCSI clock by two. Afterwards, the scanner worked perfectly at 33 and 40MHz!

Soft 475 Overclock info: https://stuffandnonsense.elephantandchicken.co.uk/?p=2519

#RetroComputing #VintageApple #VintageMac

Hey all, do I know any calcium imaging people here?

We have a problem with our Inscopix miniscopes (NVista 2.0):
We have 2 broken miniscopes and Inscopix does not provide service for this old model anymore.

We cannot afford to purchase a completely new system, so we're hoping to find someone who can do repairs. Ideally this would be a company in Europe/EU, but US might work too.

Do you know anyone? #neuroscience