Setting up SCSI HDs

[Justin]

the 1st picture is the ST373207LC

the 2nd one is the BF018863B4

i still don't see any jumpers for I am blind Pugh

 

[Justin]

@mods,

please can we separate out the hard drive info to a new thread in the oracle section?


@thread, what size is a mini pc jumper?



thanks, Justin

 

[rkauer]

Odd! There is no configuration jumpers on the pictures, but manual say it must have...:blased:

 

[Justin]

few it is not just me then

 

[merlinkv]

Hi to all

@mjnurney, maybe this doc http://www.bettssoftware.com/docs/scsi-cheat-sheet.pdf can help you a bit?

 

[Justin]

so, Davideo has very kindly sent me a Seagate ST39102LC (thanks m8)

what jumpers do i need to enable?

choices are

.. pin 1 pin 2 to scsi bus

..

.. reserved

.. parity disable

.. write protect

.. motor start enable

.. delay mtr start

.. force single ended


ta

 

[Justin]

anyone?

 

[TheCorfiot]

Hiya mate

Defnitely Enable motor start and Force single ended mode....
Give it a whirl then....

TC

 

[Justin]

aarrrrggghhhhh!!!!!

did that and the bloody trace by the psu connector just let out the magic smoke


soldering iron is heated up as i type thisoh:

---------- Post added at 19:18 ---------- Previous post was at 18:43 ----------

phew ok so it now turns on again and is showing the memory

 

[davideo]

@Juvvie

Bluddy hell mate - you don't half have some ruff luck oh:

Is the HD working for you?

Dave G

 

[Justin]

well it spins up, but still hdinstall finds nothing

i think it is something i am doing/not doing, need to play some more

it could be that i don't have enough (1) of the teeny tiny tinsey jumpers

 

[davideo]

I've just checked I haven't got any of the little blighters icard Only the larger ones.

I'll keep my fingers crossed for you matey

Dave G

 

[johnim]

hi justin are these the smaller ones

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=680

 

[Justin]

hi justin are these the smaller ones

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=680

hiya buddy, are you sure? they seem to be too big according to the sizes?

 

[johnim]

thats why i asked ?

i looked on other bay but only us have micro 1s

http://www.ebay.co.uk/itm/Jumpers-1...uting_CablesConnectors_RL&hash=item43aa76f8f5

smaller 2mm

normal 2.54mm

 

[Justin]

sorry buddy i mis-read your post

 

[johnim]

im confused now

maplin have

http://www.maplin.co.uk/2.54mm-0.1-inch-miniature-pin-jumpers-34146

which are these

 

[Justin]

i just measured the pins and they are 2mm apart, so i think your 1st call was correct

 

[johnim]

 

[davideo]

@Juvvie

Just been googling around and found the manual for the drive. See here http://www.seagate.com/support/disc/manuals/scsi/29240c.pdf

Page 71 states

9.8 Terminator requirements​

Caution:

​

​

These drives do not have onboard internal terminators. The user, systems integrator or host equipment manufacturer must provide a terminator arrangement external to the drive when termination is required. For LW drives, terminator modules can be purchased that plug between the SCSI I/O cable and the drive I/O connector or on the end of a short I/O cable stub extending past the last cable connector. LC drives are designed to be plugged into a backpanel connector without cabling.​

9.9 Terminator power

LW drives

You can configure terminator power from the drive to the SCSI bus or have the host adaptor or other device supply terminator power to the external terminator. See Section 8.1 for illustrations that show how to place jumpers for this configuration.​

LC drives​

These drives cannot furnish terminator power because no conductors in the 80-pin I/O connector are devoted to terminator power.

Another good document on SCSI in general http://www.datapro.net/techinfo/scsi_doc.html

Dave G ​