Recent content by croissantking

It’s been highlighted that the 5260 is limited to 640x480 - a limitation of the analog board not the logic board.

Can you shed any light on the resolutions available? Are you limited to 640x480?

I've seen this with one of my 840AV boards, but I think it was a main RAM issue rather than VRAM - swapping modules/trying different slots made it go away. I don't recall if it was in Millions specifically.

Isn’t it Lupus - like the disease

Did you hack 9.2.2 onto it @frontein1 ?

You wouldn’t swap it out though, you’d piggy back two extra chips (with a flying wire for the chip select signal). The same technique is needed for the PowerMac 6500 boards to take them to 4MB. I might try this on a Rev. A iMac board that I’m not very precious about.

At the point it death chimes, the SE/30 exposes the Serial Test Manager over the modem port. If you hook up to another machine by serial cable and run a terminal emulator, the response code should tell you which 8-bit lane of the 32-bit memory bus is faulty, that way you can see which SIMM slot...

It was just during testing, it's all now buttoned up in a 540c chassis.

Appreciate the kudos! Tagging @jmacz @Callan @frontein1, as this mod may be of interest. Thanks also go to @terrier, who helped me work out which were the unused RAS lines.

Not at all, my pleasure. 48MB RAM mod writeup is now posted here: https://68kmla.org/bb/threads/48mb-in-a-powerbook-500-series-an-illustrated-guide.51585/

A few months ago, I worked out how to run 48MB in a PowerBook 500 Series. Inspiration was taken from Toyoki's 64MB mod for PPC upgraded 500-Series notebooks. The concept is similar – tap into unused RAS lines on the memory controller to bump maximum RAM above 36MB. You will need: A 32MB RAM...

@CC_333 OP has stolen your avatar!

https://68kmla.org/bb/members/zigzagjoe.25791/#profile-post-1326

Why not stick one on an accelerator and try for yourself?

Try moving the system to another .hda. Try disabling the other hda’s. Have reset PRAM?