Can't boot SE from external BlueSCSI V2 sad Mac and flashing "?" Mark results

[9646gt]

Finally buttoned up the SE. It will boot from a floor tools disk of 6.0.8 that came with it just fine. So at least I have that to verify it's working.

I added the MacPack from archive.org to the SD card as well as the Legacy Recovery CD, couldn't remember if an SE can even boot from a CD (?), and fired it up but it just gives me the floppy disk with flashing "?" mark.

I tried the SD card from my LCIII which I figure won't work anyway since it has 7.6.1 installed and I get a sad Mac with the 0000000f 00000002 displayed and distorted speaker sound instead of the sad chime sound.

Any ideas? The boot floppy doesn't see any of the drive images of I boot off it with the SD card I made for the Mac SE installed. Finder shows 2,560k of total memory. Does that sound right? Could I have bad memory or something causing issues? I don't know how much memory should be showing but all four slots are full and I do not know the history of the machine. I just acquired it, did a recap, and replaced the CRT.

Also, I seem to recall the jumper for the RAM in the logic board was set to be covering ONLY pin 1. What should it be set to since I can't seem to identify just by looking at the RAM how much is installed and there isn't much in the way of identifying the sticks.

 

[Phipli]

I added the MacPack from archive.org to the SD card as well as the Legacy Recovery CD, couldn't remember if an SE can even boot from a CD (?), and fired it up but it just gives me the floppy disk with flashing "?" mark.

Have you correctly renamed the images? Do they have drivers on them to boot? What OS version is on the images? How much RAM do you have installed?


Perhaps just try the attached for now to confirm the setup works, although 7.5.3 is a bit too new for an SE really. You really would be best running 7.0.1 or 6.0.8.

Also, I seem to recall the jumper for the RAM in the logic board was set to be covering ONLY pin 1. What should it be set to since I can't seem to identify just by looking at the RAM how much is installed and there isn't much in the way of identifying the sticks.

The label is basically backwards on the board, if you set it incorrectly, it will report incorrectly. But you want to fit it on the left looking from the RAM if you have 2 or 4 MB.

I tried the SD card from my LCIII which I figure won't work anyway since it has 7.6.1 installed and I get a sad Mac with the 0000000f 00000002 displayed and distorted speaker sound instead of the sad chime sound.

7.6.1 will not boot an SE.

Have you spoken to the manufacturer? As this is a product that is new and in current production it is the best place to get support. They recommend contacting them through Discord I believe.

Edit :

BlueSCSI Support -

• Open Retro SCSI Discord
• TinkerDifferent Forum
• GitHub Discussions

 

[mikes-macs]

The Mac SE shipped from the factory with 1 MB installed in the form of four 256 KB SIMMs. It can be upgraded to 2 MB, 2.5 MB, and 4 MB configurations using 150ns or faster 1 MB 30-pin SIMMs.

A Mac SE can boot from a CD but Mac OS 7.6.1 will not work on it. Mac OS 7.1 would be a good start.

Memory Upgrades: Mac SE | Low End Mac

 

[9646gt]

Thank you for the replies everyone. I will try booting from a CD and just a bog standard 6.0.8 image. I knew it wouldn't boot from the 7.6 but figured it was worth a try jsut to make sure it was seeing something at least.

Also, I understand the jumper setting now. It says to remove the jumper, which it is basically by being placed on Pin 1 only. However, how do I know if the 2.5MB configuration is right? How can I physically check this RAM to see if I should have it set to 4MB? I don't want to waste money ordering 4MB somewhere if I already have it haha. And I assume just placing that jumper on 4MB will only cause issues and complicate things if I try to use that to make my determination haha.

 

[Phipli]

However, how do I know if the 2.5MB configuration is right? How can I physically check this RAM to see if I should have it set to 4MB? I don't want to waste money ordering 4MB somewhere if I already have it haha. And I assume just placing that jumper on 4MB will only cause issues and complicate things if I try to use that to make my determination haha.

Take a photo of the RAM SIMMs so that the labels on the chips are readable. They might not be all the same, so make sure you can see all four (you could get away with just one of 1or2 and 3or4, but best to make sure they're not mixed up).

 

[desertrout]

Thank you for the replies everyone. I will try booting from a CD and just a bog standard 6.0.8 image. I knew it wouldn't boot from the 7.6 but figured it was worth a try jsut to make sure it was seeing something at least.

Also, I understand the jumper setting now. It says to remove the jumper, which it is basically by being placed on Pin 1 only. However, how do I know if the 2.5MB configuration is right? How can I physically check this RAM to see if I should have it set to 4MB? I don't want to waste money ordering 4MB somewhere if I already have it haha. And I assume just placing that jumper on 4MB will only cause issues and complicate things if I try to use that to make my determination haha.

Page 100 (in the PDF) of this Service Guide (https://vintageapple.org/macbooks/pdf/APPLE_MACINTOSH_SERVICE_GUIDE_VOL1_1990.pdf) has a SIMM chart, which might help.

FWIW I can't boot my SE (or Portable) from a CD image on a BlueSCSI, or even if there is a CD image on the SD... V1 though. Not mission critical for me so I haven't investigated further. Probably should.

 

[9646gt]

There are pics of the Simms. Probably more than y'all need but yeah lol. I'm assuming by the difference in size that the 2.5mb is probably right. But I'll let y'all be the judge.

 

[9646gt]

Also, I tried booting just a plain HDA image on the SD card with nothing else of a 7.0.1 install I think it was. Got the error again of 0000000f 00000002

 

[Phipli]

Page 100 (in the PDF) of this Service Guide (https://vintageapple.org/macbooks/pdf/APPLE_MACINTOSH_SERVICE_GUIDE_VOL1_1990.pdf) has a SIMM chart, which might help.

That method of identification isn't definitive - it was designed for service staff and official apple parts. Note there are no 3 chip SIMMs which you sometimes find in SEs.

The only reliable way is to read the part numbers, look up what size each chip is and times it by the number of them. You need to be cautious because the chips have two dimensions - you might find a 1MB SIMM with two 4*1MB chips, or eight 1*1MB chips.

FWIW I can't boot my SE (or Portable) from a CD image on a BlueSCSI, or even if there is a CD image on the SD... V1 though. Not mission critical for me so I haven't investigated further. Probably should.

I can make you a CD image that will boot a 68000 Mac if you like I think? It's probably the driver is too new for the 68000 macs. What OS would you like? 7.1?

 

[Phipli]

Also, I tried booting just a plain HDA image on the SD card with nothing else of a 7.0.1 install I think it was. Got the error again of 0000000f 00000002

What do you mean by plain?

The common issue is that you need the hard disk drivers, not just a partition. People keep making disk images without the disk drivers and they won't boot in a Mac.

 

[Phipli]

You have 2.5MB installed.

 

[9646gt]

What do you mean by plain?

The common issue is that you need the hard disk drivers, not just a partition. People keep making disk images without the disk drivers and they won't boot in a Mac.

As in just a basic image with no other images or anything on the SD card. Just the line premade image.

 

[9646gt]

You have 2.5MB installed.

Great thank you. I'll have to source 4MB

 

[9646gt]

What do you mean by plain?

The common issue is that you need the hard disk drivers, not just a partition. People keep making disk images without the disk drivers and they won't boot in a Mac.

You can if you'd like. I dont know where I can find images that are premade that I know for a fact have the proper disk driver on them. Is there a resource?

 

[Phipli]

Great thank you. I'll have to source 4MB

You just need two 1MB SIMMs. You can keep these two as they are 1MB already :

 

[9646gt]

Well I took out all the RAM and used some dexoit to clean the contacts up and make sure they are properly seated. NOW, I turn on the power and nothing at all happens. Highly unlikely it's the PSU I would think since it's a Sony that I freshly recapped. I'll have to find the pin out and test the connector coming from the PSU to be sure I guess.

 

[Phipli]

You can if you'd like. I dont know where I can find images that are premade that I know for a fact have the proper disk driver on them. Is there a resource?

BlueSCSI Images - BlueSCSI v2 Documentation

BlueSCSI v2 Documentation.

bluescsi.com

 

[9646gt]

You just need two 1MB SIMMs. You can keep these two as they are 1MB already :

View attachment 71474

Awesome thank you. Hopefully it's easy to find this stuff gets more and more rare every day

 

[Phipli]

Well I took out all the RAM and used some dexoit to clean the contacts up and make sure they are properly seated. NOW, I turn on the power and nothing at all happens. Highly unlikely it's the PSU I would think since it's a Sony that I freshly recapped. I'll have to find the pin out and test the connector coming from the PSU to be sure I guess.

Just clean them again. It's a common issue. Rub them with something mildly abrasive like paper towel. And spray in the sockets too.

Really common to have RAM issues after reseating them. Sorry. You'll be fine.

 

[Phipli]

Awesome thank you. Hopefully it's easy to find this stuff gets more and more rare every day

Oh, 1MB SIMMs are easy to find. Everyone other than SE and Plus users upgrade from 1MB. Plus they only need 150ns or faster which is dog slow, so you don't have to worry about speed grade.

What continent are you on?