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Looks like a custom rom, for sure. Probably just the name field changed, but I'd be interested in doing a diff between that and the stock rom.

The GLU was reverse engineered - the .jed can be downloaded and burned to any old GAL16V8 :) https://github.com/kr239/Macintosh-SE-Reloaded/tree/master/GLU Also, the functions can be replicated with discrete logic - i even made a mockup with VQFN parts that fits in the same footprint i wanted...

I sure do - here are all 4 pages, but page 1 is the one with the IWM/SWIM and GLU logic. Remember, the GLU is responsible for the switching between the two drives.

@z970 I loved my 9700 PRO - had that through my 1st year of Uni in 2004, and then i swapped it out, eventually, for a 6600 GT AGP, then a 7600GT PCIe card. However, my absolute favourite card, that just blew away all expectations, was my STB Velocity 4400 - the Riva TNT 16MB - it had a tiny...

Ooof. That's a lot of damage, it might take a lot to patch that, especially the via damage by UJ3 - you might find it easier to migrate the parts to a new Bolle SE/30 board. The part that fell off is a 200ohm Resistor network, iirc used for pullups. The rom simm socket is, to my eye, too...

@Zane Kaminski will sell you compatible ram, from Garrett's Workshop. Also, I've had 1mb module PCB's from github, that I assembled, that worked just fine.

I love oddities like this! Cool floppy drive design for space saving...are both available to one cpu, or are they split one for the Z80, one for the 8088?

Hmm, i had thought about this, but there may be some extra considerations. There is a 'light mode' that you can switch to, that may make things easier for you, but additional themes might entail some tweaking. @Branchus is the guru for these sorts of things!

Thanks for these, Colin!

Did you have any luck?

No attachments here?

https://macintoshgarden.org/apps/apple-legacy-software-recovery-cd Bootable on any Mac with a 68030 or higher CPU, and 32-bit clean ROM. Contains System 7.x installers. Most of the CD's content is in Disk Copy 6.1x compressed NDIF format, requiring System Software v7.0.1 or newer (and Disk...

https://macintoshgarden.org/apps/system-6-collection Requires a Macintosh 512Ke or higher. Does not support 32-bit addressing, only 24-bit addressing, therefore limited to 8MB maximum RAM. For details on RAM and disk space requirements, please see this resource...

This is pulled together from Gamba's mac pages, and reformatted for easier readability.

Oooh, this does look pretty cool - have to wonder what the supplies of the VDP are, i know Z80's are available new, at least.

Hmm - can you take some pictures of the battery pack itself? You could take a punt on: http://www.power-supplier.co.uk/notebook-batteries/Latitude-X300.htm or https://www.good-batteries.co.uk/product.php/DELL+Latitude_X300_Series+battery

You're welcome - glad what i said helped!

Yep, you have a short to ground. With the logic board disconnected, will the chassis power on?

Can you take a photo of the screen when you try? Clicking is usually PSU shorting and failing - might be a short to ground somewhere else.