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I just got done installing a ROMSHIMM in both of SE/30s and again these make all the difference. The creative people in the Retro computing community never cease to amaze me. Just one more thing that makes this hobby so much fun and rewarding!

There is shipping to the US right now, but only expedited shipping is available.

There is now finally a solution for ROM SIMMs such as the ROM-inator II that are too thin to fit snugly in a ROM SIMM socket. A ROMSHIMM from Jurassic Computing on Tindie. I got one of these and it works great in my IIfx with a ROM-inator II. It should work in a SE/30 too...

Can you have another set of SIMMDoublers in Bank B for a total of 32MB? I do have the IIx ROM upgrade, so I believe that will work. If so and another set of SIMMDoublers comes along, I may try that.

I just picked up 4 MicroMac SIMMDoubler modules and was finally able to update my Macintosh II to 20MB (4x4MB Bank A) (4x1MB Bank B). I have 8x4MB PAL SIMMs, but I could not get them to work in my Macintosh II. I just think they do not make good contact in the SIMM sockets. They tested fine a...

It turns out is actually a Mac II adapter and not the IIx, so I am going to move forward with installing it in my Mac II with a Daystar PowerCache 50MHz accelerator.

I just sent you a PM about a Daystar IIx adapter I have.

I am putting this post in this section as that will become apparent in just a bit. I am fortunate enough to have both a 33MHz & 40MHz Daystar Turbo 040 accelerator. These are the later models with the 128K cache already onboard. They both have the v4.11 ROM. I have the 40MHz 040 in a IIci. I...

Now that you mention it, I did run into the same thing with my Diimo 030 50MHz on my SE/30 as well. That makes sense now.

The interesting thing is the FPU scores in Norton SI 3.5. The Interware Booster is quite a bit faster. I am not quite sure what would cause this, but I ran it twice to be sure the score was correct.

Next up the Diimo 030 50MHz. The pictures from left to right are the accelerator front, back, Norton SI 3.5 CPU, Norton SI 3.5 FPU, SpeedOMeter 3.23 and SpeedOMeter 4.02.

Last year I picked up an Interware Booster 50MHz accelerator for my Macintosh LC III. I have now gotten a Diimo 030 50MHz accelerator clone designed by max1zzz. I thought it would be interesting to see how well these benchmark against each other. First up the Interware Booster 50MHz. The...

Let me just chime in and I have the exact same artifact behavior in monochrome mode with my Rev A 8.24 GC. As I run mosty 256 colors, I have just learned to live with it.

I don't know if I am going to try this or not. It's working fine with the original ROM SIMM. I leaning towards just leaving it the way it is.

It seemed pretty secure when I checked that. I just think the thinner PCB is most likely the issue. I may try thickening the metal contacts with some solder.

I have tried just about everything I can think of the get a Romin-ator II to fit securely in my Macintosh IIfx. I have tried everything from rubber bands to shims to no avail. The Romin-ator II eventually comes loose and I have to push it back into place again. I finally gave up and went back to...

FYI, if you are trying to run Norton System Info 3.5.3 on a Mac SE it will crash trying display the results. Simply move or rename the Benchmark Results folder and rerun Norton System Info. You can then start moving results back into you see the problem again. There is a limit on the Mac SE as...

I am not planning on anymore upgrades to the SE at this time. I have a BlueSCSI v2 with a PicoW which can emulate a DynaPort SCSI network adapter for my networking needs.

I would say the RAM and VRAM upgrades are a no-brainer. The VGA mod is of course up to you. I have a Color Classic case that I run a Color Classic, LC 550 (Color Classic II upgrade ) and LC 575 (Mystic upgrade) motherboards in, so I decided against the VGA mode for full compatibility. My daily...

I looked through my parts inventory and found a 40MHz MC68882 math coprocessor. I swapped it out for the 16MHz MC68881 on the accelerator and ran through SpeedOMeter 3.23 under System 7.0.1 (The daily driver OS I run on this Macintosh SE). Here are the results, nothing earth shaking, but the...