BlueSCSI on Macintosh Portable

JDW

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Have these issues with the BlueSCSI and the Portable ever been fixed?

It’s a complex question to answer because this thread is 11 pages long. But I have done the work for everyone by summarizing this thread page by page.

THREAD SUMMARY TO DATE​

Page 1:​

@Sideburn started this thread with a question about how to eliminate a wake from sleep DELAY with his BlueSCSI and 5120 Portable (with Hybrid).

Page 2:​

Sideburn mentions 3 things:
  1. His BlueSCSI is set to HD0, which is what it should be for the Mac Portable.

  2. It was mentioned by @alxlab that you should: Never use a version of Apple HD SC Setup newer than 7.3.1 (which comes with System 7.0.1) or your Portable will crash while waking from sleep mode. But it’s not clear if Sideburn ever checked that driver version on his BlueSCSI.

  3. Sideburn found that constantly powering his BlueSCSI eliminated the Wake from Sleep DELAY.

Page 3:​

Talks about ways to source power for the BlueSCSI, and also mentions a new problem: after wake from sleep, the machine is slower until you Restart. @Androda chimed in to add that the problems cited should not be related to the Hybrid board.

Page 4:​

Talks about Lead Acid batteries and the discovery that having more than 4MB on an add-on RAM card triggers a severe performance slowdown.

Page 5:​

Presents deep analysis of the problem, concluding by saying there is nothing wrong with the RAM card itself — it’s the AMOUNT of RAM triggering the slowdown.

Page 6:​

Reiterates the problem by saying the slowdown is worse after wake from sleep (with more than 4MB on a RAM card).

Page 7:​

@SuperSVGA mentions a problem area that @Androda confirmed, but the thread ended there in July 2023 until I chimed in months later in Feb. 2024, asking about the Pico W (wireless) on my BlurSCSI v2 on my 5126 backlit Portable. Androda replied saying: “BlueSCSI Desktop PCB designs since 2023.09a have the correct pull resistors set and should not cause issues with waking from sleep.” But my BSv2 was older than that and lacked those resistors.

Page 8:​

Shows how to add the needed 2 resistors on older edition BlueSCSI v2 boards like mine. I also tested and confirmed the performance slowdown (26%!) exists due to having more than 4MB on a RAM card (in my case, from MacEffects). SuperSVGA then chimed in with the exact technical reason for the slowdown caused by having too much RAM. I then post a new discovery that the Portable freezes on Wake from Sleep due to WIFI access.

Page 9:​

A back-and-forth talk about what the problem could be.

Page 10:​

I confirmed earlier findings about keeping the BlueSCSI constantly powered, in that constantly powering the BlueSCSI resolves the Wake from sleep issue I discovered, triggered by WIFI use. I then asked if the Apple HD Setup “driver version” issue had been investigated, and the answer was No. The Portable supposedly needs driver version 7.3.1 or older, not 7.3.5 like most of us BlueSCSI owners tend to use. That’s an unanswered question to this very day. Anyway, Page 10 also talks about where to tap power to keep the BlueSCSI constantly powered, but I ultimately decided not to do that on my Portable because I think it presents the danger of an electrical short. My solution? Not great. After using my Portable and WIFI, I must shutdown instead of putting the machine to Sleep.

Page 11:​

Where we are now.


NEW INFO: someone is working on a new RAM Card that potentially could eliminate the performance slowdown while allowing you to use more than 4MB of RAM on a RAM card. I won't say anything more about who it is or what is happening, because the person working on it may decide not to release the product or have issues. But I do know something is being worked on, which is great because there aren't any RAM cards (newly developed) being sold right now, from what I understand.
 

eric

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Ordering it by page is confusing IMO, so just a summary:
  • BlueSCSI wake from sleep: Fixed since 2023.09a+ or a bodge for older ones.
  • BlueSCSI WiFi after sleep: No one has provided any logs of what the BlueSCSI is doing when this happens, or if the issue happens on a real daynaport device.
  • Slow down: unrelated to BlueSCSI - RAM card issue.
  • Driver version: someone with a portable should just test - should take 10 minutes.
 
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