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Alrighty, gang, I installed a 150 ohm resistor and placed 1 MB (4 x 256kb SIMMs), and have 4 MB installed on the accelerator, tried booting and… I got another Sad Mac code. I thought it could be the resistor, so after I removed the accelerator and it booted with 1 MB of RAM. I’ve attached a...

Just a quick update from me: I've switched back over to System 6.0.8 and noticed a bigger speed boost with the accelerator! I also bought some 150Ω resistors that will be arriving today. I'm going to get these added back onto the Logic Board and try booting with 1 MB to see what happens. At...

Tinkering with a HyperCharger 020 Accelerator

Oddly enough, these folks were also responsible for Ms. Pac-Man. I've been using my SE to mostly make a HyperCard game, so this is a silly, but interesting coincidence. It would be crazy if they replied! :)

I wanted to show something I found – I got the SE back together, and tinkered a bit with some different drivers. I came across one called the Dove Marathon Racer v2.3 that I decided to try out, and I noticed something odd. I don't know if this driver is actually doing anything, or is tricking...

I saw this older thread as well after looking for the Connectix Virtual utility and figured I would add it here as well (for possible reference): https://68kmla.org/bb/index.php?threads/levco-supermac-prodigy-se-accelerator-and-utility.32375/page-2

Found some :) https://www.amazon.com/Projects-10EP512150R-150-Resistors-Pack/dp/B0185FK5SI/ref=sr_1_3?crid=18O0K7UG5P0D9&keywords=150+Ohm+resistors.&qid=1681310767&sprefix=150+ohm+resistors.%2Caps%2C95&sr=8-3

I have not - could I "borrow" some from my broken SE/30?

OK – I just installed 1 MB (4 x known working sticks) and tried booting it up with 4 MB on the accelerator, and… I get the same Sad Mac error (attached). I just want to reiterate that I will not be touching the jumpers, but I watched a video and saw something interesting - it looks like Adrian...

Will do! I'm going to use another set of 1 MB SIMMs. Also, I figured it would be wise for me to include this (I forgot to yesterday). This is what happened when booting with my previous set of 1 MB (4 256 KB SIMMs) on the logic board and 4 MB on the accelerator. I though that one of the SIMMs...

I will be leaving the jumpers 100% alone.

I'm content with the speed as is. :) One thing that @Phipli brought up had to do with the ROM – he had a hunch that trying different drivers could possibly help getting this card's ROM into the RAM, and possibly have it run a bit faster. I noticed on my card, that the card wasn't able to load...

At work at the moment, but I'll hold off on doing anything with the jumpers – I'll check out those reviews as soon as I can. :)

I’ve got good photos of those jumper positions, so I’m wondering if I should maybe try a few combinations at this point - there’s a chance I could get some of the ram to show up, lol

Each 1MB SIMM has 8 chips. ;)

That’s a lot of possible combinations, lol! 😅 I’ll probably need to go that route in order to get it sorted out! Overall, the SE runs well!

There’s no crystal on this one that I’m aware of, but here are the set of jumpers - @Phipli noticed that my jumper config was identical to one he found on the forums a while back. I’ve attached mine close-up, as well as another one with the same config (this might be how it arrived in the...

I think something might be up with this one, lol - I grabbed this file last night and was able to get the v2 driver, but there was an “endless” .hqx file that never gave me a v1 driver. I tried this one out to be safe (the v2 driver) but nothing changed. I might try extracting these in Mac OS...

I have not - could you pass those exact two for me please? :) I’m going to try either one, but I want to make sure I can control which one is which, lol

I agree too - I cleaned the SIMMs but no changes - I’m going to leave well enough alone unless we find anything else. :)