2 New SE/30 Logic board with Issues

[MegaImg]

Update, the board with SCSI issue, It can see the drive or BlueSCSI v2 volume, mount it, formated, partition it, install os but it will not boot from the HD or BlueSCSI. Now if I turn off and back on qucik, the machine boot from HD or blueSCSI.



Regarding the Horizontal bar, I dont get any sound.

IT was the RTC IC - OMG! So the SCSI issue is resolved. Now to the Horizontal Bar logic board.

No sound...Socket are new, for the ROM and SIMM. Swap ROM with another working system, same behavior.

 

[croissantking]

IT was the RTC IC - OMG! So the SCSI issue is resolved. Now to the Horizontal Bar logic board.

That’s great! But I don’t understand because you said you’d already checked this?

 

[MegaImg]

That’s great! But I don’t understand because you said you’d already checked this?

Yes! the machine will work, aparently the replacement RTC base on

Swap The Clock Chip On The Mac SE/30 With An ATTiny85

As [Phil Greenland] explains in the first part of his excellent write-up, the lithium battery used to keep the real-time clock (RTC) going on the Macintosh SE/30 has a nasty habit of exploding and …

hackaday.com

has some timing issues. I put a original back, and everything work.