#Installing 3.1 Roms
3 messages in this thread
Help,
I have just received my 3.1 update(ROMs, Disks and manuals) for my A3000/25.
I have been installing ROM, RAM, Video cards, Drives, SCSI cards etc. for quite
a while now and looking at the instructions everything seemed very straight
forward. Did I get a surprise when I opened the machine and really looked at
where the ROMs were supposed to go. I have the correct sockets:
______________________
| |
> |
U183 |______________________|
______________________
| |
> |
U182 |______________________|
______________________
| |
> |
U181 |______________________|
______________________
| |
> |
U180 |______________________|
J180 ___ *
1 2 3
J181 ___ *
1 2 3
All this is fine except that the jumpers appear to be set for A2000 ROM
compatibility and in sockets U182 and U183 there are two sets of standoffs
atop which is a daughter board with two chips about the same size as the ROM
chips mounted to the under side of the board. This set up covers the U181
socket. Now there is enough room to take this board off install the 3.1 ROM
chips and then reinstall the daughter board. As the instructions I have did not
cover this I am a little leary of doing anything.
I have to my knowledge never had ROMS in this machine. It uses the
SuperKickStart from Disk even with my current 2.1 operating system. I am
reasonably sure of this since my fast ram is down about 512K from what I have
installed when my machine boots.
My best guess is that I am to move the jumpers for A3000 ROM compatibility and
install the new 3.1 ROMs in the appropriate sockets and I should remove the
daughter board.
I sure hope there is someone out there that has run into this before and can
guide me in the right direction since I would hate to toast $90 worth of ROMs
and not be able to use 3.1
Thanks in advance
Jeff
I posted this in the users forum last night and got no response hope someone
sees it here.
// From Upstate SC
\X/ ….on AutoPilot
Jeff,
I have an early model A3000-25 as well and when I upgraded to OS3.1 I had to
install the ROMs on the ROM Tower and re-install the tower from whence it came.
When you remove the tower you will notice that the two rom sockets are labelled
U180 and U181. Install the OS3.1 ROMs as follows:
3000-1 in Tower ROM socket U180 3000-0 in Tower ROM socket U181
Re-install the tower on the mother board in the same location you removed it
from; U182 and U183.
I did not change the jumpers J180 and J181.
Two weeks ago after installing some more ram I noticed in the A3000 service
manual the info about A2000 and A3000 ROMs and jumpers J180 and J181. I
proceeded to remove the OS3.1 ROMs from the tower and installed them on the
motherboard in sockets U180 and U181; I then connected pins 2-3 of jumpers J180
and J181 as mentioned in the manual. When I restarted the computer, there was
no boot-up. I returned the OS3.1 ROMs to the tower and the jumpers back to 1-2
and everthing is working fine once again.
I hope this helps; I have no explaination why the OS3.1 ROMs won't work on the
motherboard on my machine and my service tech thinks that I should just leave
well enough alone.
Pete,
/ / Flying the A3000 on AutoPilot 1.77
\/\/ from Durham,Ontario.
Thank you Pete,
I will be in your debt. I would have been a long time figuring that out I
will try what you suggest tonight and let you know how it comes out.
Jeff
// From Upstate SC
\X/ ….on AutoPilot