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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: neofree on April 29, 2006, 04:25:02 AM

Title: Amiga 3000 wont detect SCSI hard drives
Post by: neofree on April 29, 2006, 04:25:02 AM
I have two different SCSI hard drives, both I was told worked fine, but neither I can get working in my Amiga 3000.

The first drive is 1GB.  If I put it in alone, it does not spin up.  But if I put it in, and put an external SCSI CD-ROM drive plugged in the back of the 3000, then it spins up, but still is never detected.

The second drive is 9GB.  If I put it in by itself it spins up, or with the SCSI drive, it spins up, either way..  But also not detected by the HDToolBox on an Install 3.1 floppy disk.

I am using the built in controller of the Amiga 3000, on a Rev 9.03 motherboard with 3.1 ROMs.  I do not have any way of making new disks, as I sold off all other Amiga equipment.

Here is more detail about the drives, I am wondering if it is a jumper problem on the drives.  I did make sure to try different SCSI ID's already.

The 1GB drive is a Toshiba Model MK537FB and has the following jumpers:

ID0
ID1
ID2
LED
TPWR
IDXO
IDXI
PE
START
?T?N  (The ? marks are covered up by holes on the board)
TEST

The following jumpers are closed (have a jumper installed):
ID0, TPWR, IDXI, PE, START, ?T?N

This is a 50pin drive that I was told to be working in a Amiga 1200.



The other drive is a "9.1GB 7200 RPM Wide Ultra 2 SCSI" drive, Compaq P/N: 120852-001.  Also says MODEL MAE3091LP, and says FUJISTU LIMITED at the bottom.  It has a 68pin connector on it and I used a 68pin-50pin adaptor to connect it to the Amiga's 50pin SCSI cable.

It has the following jumpers:

ID0
ID1
ID2
ID3
WRITE PROT
START CMD
SINGLE/WIDE
DIFFSENS
SP SYNC
IDD RESET
LED
TERM PWR EN

The following jumpers are closed (have jumper installedd):
ID0, TERM PWR EN


I have of course tried a different SCSI cable.  I also have an LVD terminator, but when it's installed the Amiga does not boot and the HDD light is lit on both the drive and the Amiga's HDD light.


Any ideas?

Thanks,

Neofree
Title: Re: Amiga 3000 wont detect SCSI hard drives
Post by: tonyvdb on April 29, 2006, 05:16:08 AM
Hi neofree,

I dont see you mention that you have an active terminator on the SCSI cable. You must have one located after the last drive in order for the SCSI controler to "see" the drives. Also make sure that you have the drive selected for device 0 Meaning no jumper
Title: Re: Amiga 3000 wont detect SCSI hard drives
Post by: Amiduffer on April 29, 2006, 05:22:08 AM
When I got my A3000, and a bag of 1 gig HD's later, the only way I got them to work was, one at a time, adjust the jumpers until it worked.  :-D It's frustrating, but you hit the right combination, sometimes. :-)
Title: Re: Amiga 3000 wont detect SCSI hard drives
Post by: neofree on April 29, 2006, 05:24:45 AM
Sorry on the 1200 with GVP 68030/40mhz/SCSI I put a external SCSI drive on and used a terminator and the computer would not even boot.  So I took it off and it worked perfectly after that.  

I have an LVD terminator.. But the 3000 also will not boot when it is installed.

Thanks,

Neofree
Title: Re: Amiga 3000 wont detect SCSI hard drives
Post by: neofree on April 29, 2006, 08:18:40 PM
Ordered a SCSI-1 terminator, will see how it works out soon..

Thanks,

Neofree
Title: Re: Amiga 3000 wont detect SCSI hard drives
Post by: neofree on May 03, 2006, 03:53:42 PM
The SCSI-1 terminator did it! The 1GB drive is now working, good enough for me.  It even boots up OS3.9 that was already installed on that drive. :)

Just one more minor issue to fix (see new thread) and this guy is going on eBay (will post here when it's listed). This is a pretty nice 3000 now that it's working fully! :)

Thanks,

Neofree