Jump to content

Odd issue - SE/30 crashes while booting System 7.5.3


Recommended Posts

Hi All,

I'm a retrocollector of many different systems, and one of my beasties is a Mac SE/30.

It's being a little problematic right now and I was hoping someone could help me with my issue.

First, some background on the system. When I got it, it had leaked caps, but thankfully the battery was fine. I've successfully cleaned and recapped the board.

I've swapped out the ROM for the ROMinator II Atom, and upgraded the RAM to 20MB. I've replaced the internal HDD with a SCSI2SD.

I have a Floppy Emu as well, so I'm pretty well set to get data into the Mac as well.

 

I noticed something recently that I find a little odd.

 

System 6 goes on fine. System 7.1 goes on fine. System 7.5.3 locks up the system, regardless of whether it's booting from hard disk or floppy disk.

 

My current line of reasoning is that System 7.5.3 is hitting some part of the hardware that earlier versions didn't, and thus it's revealing an underlying hardware issue, possibly related to the recap.

 

Anyone got any ideas of what I should be looking at?

 

Cheers!

 

Chesh

Link to post
Share on other sites
On 4/30/2021 at 2:50 AM, cheesestraws said:

 

If you're using 7.5 with a ROMinator, you need to patch the system file.  Details here: https://www.bigmessowires.com/mac-se30-with-upgraded-rom/

Woo!

 

Thanks for that! I'll give that a try shortly. Clearly my "Google Fu" was weak yesterday.

 

Again, thank you so much!

 

Cheers!

 

Chesh.

Link to post
Share on other sites
  • 68kMLA Supporter

You're very welcome!

 

In general, unless you want the ROM booting, the ROMinator II is a bit overused on the SE/30, in my opinion at least; it can cause trouble with some cards and accelerators, and it doesn't win you very much over just loading MODE32.  And, as you've found out, it does odd things with 7.5.  So if you have weird issues in future, especially compatibility with things that "ought" to work, the rominator might be a good thing to poke first. :-)

Link to post
Share on other sites
  • 68kMLA Supporter
Posted (edited)

On the other hand, if you are a maximizer like me and absolutely must have 128MB of RAM in your SE/30, the ROMinator II is awesome because it less you skip the very slowwwww memory test at boot time. I recall it has issues with some 040 accelerators but don’t really remember — and anyway, LOTS of vintage things don’t play nicely with an 040. I’ve never had any issues with a 50MHz Diimo 030. 

Edited by Crutch
Link to post
Share on other sites
  • 2 weeks later...

I did find it super useful for setting up my initial drive formats. 

It's also nice to have the ROM booting for when I screw up things :-)

 

The whole system is working a treat now, BTW. I even added an external SCSI CD Rom to the mix. If only I had some meaningful software on CD ROM :-D

 

Chesh

Link to post
Share on other sites
33 minutes ago, cheesestraws said:

Woo, glad to hear it's all working for you now :-D

 

(parenthetically, was it you I saw posting on stardot too?  If so, welcome to the Acorn club also!)

Yep! Is me! 

 

I'm about to fire up the desolder gun and see if I can get that puppy working at last. I have sockets. I have spare RAM. I have grit and determination.

 

Cheers!

 

Chesh

Link to post
Share on other sites
  • 2 weeks later...
On 5/1/2021 at 10:48 AM, Crutch said:

On the other hand, if you are a maximizer like me and absolutely must have 128MB of RAM in your SE/30, the ROMinator II is awesome because it less you skip the very slowwwww memory test at boot time.

Since the Mac Plus ROM, you can hold down the mouse button at boot time to skip the RAM test.

 

The RAM test occurs during the period when the screen is gray, and before the arrow pointer appears. Hold down the mouse button when you power on, and you can release it once the arrow appears (in case you have inserted a floppy disk that you want to boot from).

 

I verified this on an SE/30 earlier today.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...