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SE/30 Welcome to Macintosh


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Hi all,

 

I have an interesting problem with an SE/30 I have just acquired.  It looks like the logic board has been recapped,  so assume good.  When I boot it, it gives me the disk and question mark symbol so doesn't seem to boot from HDD,  when I put either a single system 7 disk or an install disk 1 in the FDD it gives me a happy Mac Face followed by the banner Welcome to Macintosh and then a bit of FDD movement and then nothing else.  it doesn't go through to the desktop or ask for anything else and sits in suspended animation with the Welcome to Macintosh banner and a mouse pointer that can be over around the screen.

 

Is this likely to be a logic board recapping issue ? I also notice it doesn't give a bong on startup which also tells me there is some part of the logic board not passing startup check.

 

I have reseated all the RAM and ROM.

 

Any thoughts ?

 

Andrew.

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Hi Andrew,

 

My SE/30 doesn't give a bong on startup but it works nice.

if there was a problem you will have the sad mac icon with some hexadecimal numbers beneath, so i don't believe that there is a problem there.

 

My thinking is that there is a problem with the disk. Either with the disk as media or with what is written on it some error in copy. 

Have you try with another floppy? Also i suggest to you to try with the Network Disk Access image. You can find it here: https://macgui.com/downloads/?file_id=20094

 

Hope that helps.

 

Best

Dimitris

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If you are getting to Welcome to Macintosh, the POST (power-on self-test) is indeed passing -- if you are not hearing a bong but the system appears to be booting, something is wrong with your speaker, connections thereto, or possibly something is amiss near the sound chip?  It's also possible your Mac "thinks" there is something plugged into the headphone jack (again due to something amiss on that part of the motherboard) so is muting the speaker.  You could check this by actually plugging in headphones and see if you hear anything.

 

I think you said this happened with two floppies, so it's likely not a disk issue.  Do you have another disk drive you can try?  An external drive perhaps? 

Edited by Crutch
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Good questions and thanks. I have just received this Mac so never had it working as such so not sure if the ROM has been upgraded,  is there any way of physically telling given I can't get past Welcome to Macintosh ?

 

With the PRAM reset option of “command option p r” is that done during the boot sequence or once the OS is loaded and I have a desktop ?

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8 hours ago, Cinan said:

Good questions and thanks. I have just received this Mac so never had it working as such so not sure if the ROM has been upgraded,  is there any way of physically telling given I can't get past Welcome to Macintosh ?

 

With the PRAM reset option of “command option p r” is that done during the boot sequence or once the OS is loaded and I have a desktop ?

Sure, could you send us a picture of the ROM?

 

You do Command+Option+P+R after you flip the computer on. It'll basically go into a reboot loop until you let go. Just let it reboot a couple of times and let go.

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I can open them the pictures on my laptop ok but not from a different device so trying to work that in the background.

 

I tried the PRAM rest as per above but with no effect.

 

I tried starting with a 7.01 disk and received the same problem.

 

I then tried using a 6.08 disk and it read the disk, paused, read the disk again (with the Welcome to Macintosh banner) and then popped up an Icon in the bottom left of the screen with arrows in the Icon and EN7SC on the bottom of the icon,  the icon then went away,  it cleared the Banner and went to the normal desktop with the white banner across the top and then just stopped.  The whole banner in the top doesn't have any menu options it is just a plain white banner  So it seems to get further along with 6.08 but then just stops like it has run out of interest.  I made a video of the last try with 6.08 to post here, so once I work out the posting issue I will send it up to you all so hopefully someone can provide guidance.

 

Thanks

Andrew

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You reset your PRAM by holding down the “command option p r” keys on the keyboard and then switch it on. Might need a second person. You can do it after you switch it on but you have to be really really fast doing it. 
 

Have you tried booting while holding the shift key on the keyboard ?  This boots without loading a lot of system resources (extensions). 
 

Where did you get the boot disks from?  How did you make them if you downloaded them yourself ?

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No difference unfortunately,  I used "Command Option P R" and it rebooted 4 times after the Welcome's banner was displayed.  Also tried the Shift key and this displayed "extensions off" on the Welcome banner but no change in outcome.

 

I know the disks work as I have used them on other Mac's (Classic, Classic II) for the 7.01 and a SE FDHD for the 6.08. 

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On 10/6/2020 at 8:21 AM, Cinan said:

No difference unfortunately,  I used "Command Option P R" and it rebooted 4 times after the Welcome's banner was displayed.  Also tried the Shift key and this displayed "extensions off" on the Welcome banner but no change in outcome.

 

I know the disks work as I have used them on other Mac's (Classic, Classic II) for the 7.01 and a SE FDHD for the 6.08. 

Ok. How much RAM are you running on this system and have you changed the ROM with a ROM from another machine / the BMOW one ?  

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8 hours ago, MrFahrenheit said:

Ok. How much RAM are you running on this system

Enough to get him to the 6.0.8 desktop.

 

8 hours ago, MrFahrenheit said:

have you changed the ROM with a ROM from another machine / the BMOW one ?  

The image that he uploaded shows that he's using the Apple ROM SIMM.

IMG_7187.jpg

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18 hours ago, Dog Cow said:

Enough to get him to the 6.0.8 desktop.

 

The image that he uploaded shows that he's using the Apple ROM SIMM.

IMG_7187.jpg

It doesn't get me to the full desktop with 6.08 just the white bar at the top with no writing or anything else.

 

Looks to me like it is 8MB,  I have attached an image of the RAM and the order they have been in from SIMM1 at bottom to SIMM 4 on top of photo.

 

IMG_7197.HEIC

IMG_7196.HEIC

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If the SCSI chip was bad, it would not even give you a happy Mac, but would just sit at a gray screen with a mouse pointer that can move. One possibility I could think of is maybe the HD is bad, but bad in a way that is freezing the machine when it tries to read from it during startup. I’d disconnect the HD and see what happens.

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Yes I have had the HDD disconnected and am only trying via the FDD which I have serviced and tried on another machine to ensure it is working correctly.  I am going to try different sequences of the RAM chips over the weekend when I have some time.  I noticed that if I just use 4MB in SIMM1&2 it makes no difference.  How much RAM does it need for System 6.08 to fully load.

 

Next steps will be to undo the recapping of the logic board and re do after a clean under the caps.

 

I have checked the power output on the HDD Molex and it seems to sit stable.

 

Link to other thread - 

 

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When it “freezes” booting System 6.0.8, try pressing the programmers interrupt switch on the side and see if the box comes up that you can type into. 
 

Type:

G

hit enter/return. It should go away. Also, are you able to install MacsBug 6.2 onto your startup disk and boot with that?

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8 hours ago, Cinan said:

Yes I have had the HDD disconnected and am only trying via the FDD which I have serviced and tried on another machine to ensure it is working correctly.  I am going to try different sequences of the RAM chips over the weekend when I have some time.  I noticed that if I just use 4MB in SIMM1&2 it makes no difference.  How much RAM does it need for System 6.08 to fully load.

 

Next steps will be to undo the recapping of the logic board and re do after a clean under the caps.

 

I have checked the power output on the HDD Molex and it seems to sit stable.

 

Link to other thread - 

 

You only need 1MB to boot System 6 but I think you need to install in 4s. 

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8 hours ago, MrFahrenheit said:

When it “freezes” booting System 6.0.8, try pressing the programmers interrupt switch on the side and see if the box comes up that you can type into. 
 

Type:

G

hit enter/return. It should go away. Also, are you able to install MacsBug 6.2 onto your startup disk and boot with that?

I will try,  I don't have the ability to load Macsbug 6.2.  Still working with net disconnected Classic Macs and no other machine with 3.5 FD :-( 

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Thanks for your offer, I am in Melbourne Australia.  I will persist for now and I am going to borrow a FloppyEMU which will allow me to load some apps and connect them.

 

On another note does anyone know where pins 6,7,8 of the IC on UE8 go to,  under closer inspection they are right next to a SMD cap and look a bit dull and crusty.  If someone has a schematic I can check continuity on those to see if there are issues.

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