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Necropost, I too have one of these, but it had a 68LC040 on it. I took the time to remove it, installed a full 68040, and it took just fine, FPU works and everything. I thought about adding a socket to the board, but there is absolutely no room in there. It's neat to see one with a full 68040...

I never figured out why it does this. Yes, the Sonnet card was a Tempo. I eventually settled on a dual USB card, just to get USB support. I can't give up this card, I recently found the appropriate software for it, so the Mac joystick passthrough works so I can play Mechwarrior 3 with my Gravis...

It's not a DOS card, but the Orange Micro cards work well enough if you use Doom95 or zDoom. They don't do sound in DOS, but windows works swimmingly.

I have a 25Mhz accellerator for an LCII and it's bad, I also have a Quadra 605 overclocked from 25Mhz to 33Mhz. I also have a 33Mhz 030, and I've tried Doom on all of these. I also know that programs have an issue running at 512 x 384, so I need this FVGA program to kinda fake a 640x480 mode...

Tried it, runs great, no issues observed. The credit card-style keys and the physical key door blocks took me a second. I only had enough time to blitz through 3 levels, good work!

I clicked the Kickstarter link, but there's no mention of funding, is all I mean. I've only heard about some of the things people went through to get physical releases of new-old games. Sounds crazy, but extremely novel.

I do wonder how well a 40Mhz 68040 on a 40Mhz bus runs Doom.

Absolutely going to check this out this evening. Testing on an LCII with an 040 accelerator card, so that'll be a unique test environment. I can't wait to make terrible maps for a terrible map pack. I thought Kickstarter was just a money thing, weird.

Does it have any additional elements, beyond what Chips Challenge has? more key keys, other monsters, etc? How do you differentiate key doors in black and white? I second the notion, I can't wait to try it.

This looks like Chips Challenge. Make a tile-based level editor for this and it will be an everlasting staple for every classic Mac user ever.

Now that you put it this way, I completely agree.

I also have a re-capped LCII, SCSI2SD inside and BlueSCSI plugged into the back. It would act up, I had to flip the power on and off and wait for it to even chime. I replaced the internal battery, and it hasn't given me trouble since. I didn't think the LCII had this kind of battery issue, but...

Any 603-G3 machines I have run 8.6, anything G4 runs 9.2.2. I completely agree, 9.1 on my 225Mhz 603ev runs pretty bad, even with the 400MHz G3 accelerator it does not run quite right. 9.0 crashed a lot and I gave up on it pretty quickly. 8.6 can do anything I need it to do, I may need to...

Extremely interested in where this goes. Other FPS game son Mac that run better would be Duke Nukem 3D and Marathon. Granted, with Duke Nukem 3D, by "run better" I mean "Runs great for what it's doing, which is more than Doom". I know Marathon isn't as complex as Doom, but the midway point...

Follow-up necro-post. I did the thing, and it works. I didn't do a CPU socket or anything fancy. There was a plastic spacer under the CPU to keep it away from the logic board, I removed that in favor of some layers of kapton tape, which allowed the CPU to sit lower on the boar,d allowing a...

I've tried a lot of the MacOS versions, but I skipped a lot of them, after some testing. 68030 16/33Mhz: 7.5. 8.1 was possible with my 68LC40 accelerator, but it ran miserably on 10MB of RAM. 68040 33Mhz: 7.5, 8.1 was notably slower. 603ev 180/225Mhz: dual boot 7.6 and 8.6. 9.1 ran slower, DooM...

Cant you modify the logic board to overclock the 68040 to 33Mhz? I did this to my Quadra 605 and its a welcomed boost for things like Duke Nukem 3D.

Something similar, aftermarket GPU coolers are absolutely a thing. The Radeon X1900 G5 edition has an aftermarket GPU, which strangely looks like it should not be as good, yet is. The density of the copper fins actually restricts air flow, and the single PCIe bay size makes it an absolute heat...

Is this possible? If the bus is 16Mhz, would there be an issue with a 33Mhz processor on a 16Mhz bus? I haven't done the proc swap yet, but swapping the crystal sounds very interesting. I wonder how hard I could push this.

Excellent! Just what I wanted to hear. Totally gonna do this.