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I tried running Norton Utilities System Info 3.5 on my Mac SE. Unfortunately, it get a Bad F-Line Instruction error when it tries to display the results.

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...

Thanks for posting the v1.7 Control Panel. That is really what this vintage computing community is all about, helping one another and preserving computing history!

It's for plugging in an additional expansion card like a video card. I think you could get one specifically for this accelerator from SuperMac. The manual does not go into any detail on it.

I posted a thread about the SuperMac SpeedCard along with the results here: https://tinkerdifferent.com/threads/macintsh-se-supermac-speedcard-accelerator.4257/

Here are the results from SpeedOMeter 3.23 on System 7.1.

Here are the results from SpeedOMeter 3.23 on System 7.0.1.

Here are the results from SpeedOMeter 3.23 on System 6.0.8.

I just picked up a Macintosh SE SuperMac SpeedCard accelerator. This accelerator has a MC68000 clocked at 15.67MHz along with a MC68881 math coprocessor at the same clock speed. Finally it has 16K SRAM cache. I have been interested in getting one of these for quite some time to see just what...

I do have a PGA 68882 in couple of things. I may give it a try someday, but based on past experience, the increase would not be that great. I have tried both a 68881 and 68882 in the FPU card on Macintosh LC. The speed difference was 5-10% at most, depending on the benchmark. When I post some...

I will try and get full results this weekend and posted with pictures using SpeedOMeter 3.23.

I got the SuperMac SpeedCard installed and benchmarked using SpeedOMeter 3.23. I am having issues taking pictures of my screen so I just summarize the results. CPU: 233% increase (2.33 Index) Graphics: 75% increase (1.75 index) SCSI: No real difference (I was getting 1.5 and now around 1.6...

I got the SuperMac SpeedCard today. I will be running it through it's paces this weekend. Stay tuned...

I should be getting the SuperMac SpeedCard in a few days. I will try and get benchmarks posted soon.

I see there hasn't been any movement on the project since last November. I really hope this will eventually become a product for sale. In the meantime I am picking up a SuperMac SpeedCard for my Macintosh SE. I would not mind owning both.

This is a really cool motherboard, but is extremely finicky when it comes to hardware and software compatibility. I think I finally have this 99% solved and just wanted to share what I have found out. Intermittent parity errors: I first thought this was a memory issue, but all the ram chips...

I thought I would share my opinion if it is worth getting or not. jrIDE compatibility: It does indeed work right along side a jrIDE. I have included a screenshot from the memory timings using the Quarterdeck Manifest utility. As you can see, the fast 512K is coming from the MCL86jr. The first...

I saw the recent video about the Tandy CM-1 monitor on Adrian Black's YouTube channel. Finding out this monitor was made by Mitsubishi and was used on the PC-9801 computers, I tried the RGBtoHDMI profile for the PC-98 400 lines, but the text output blinks and the graphics mode is distorted. I am...

The Tandy 2000 uses an 80186 CPU running at 8Mhz. I was just curious how a Tandy 1000 SL with an 8Mhz NEC V30 would compare performance wise. I have managed to get a couple of working Tandy 2000s with the help of a friend. I ran a couple different benchmarks on both systems to see how they both...

@Zane Kaminski Thank you so much for the update. It is very much appreciated and I am so glad to see this moving forward!