Correct seating for Jumper 290/291 on my Mega STE board

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Correct seating for Jumper 290/291 on my Mega STE board

Postby Mug UK » Wed Dec 22, 2004 8:06 pm

Back in the late of summer, CJ and his mate popped across to install an internal 2-Gig drive ...

Full story here: http://www.atari-forum.com/ftopic4610.html

.... to cut a long story short, went away with my old MegaST and h/drive and left me with my eBay purchase of the MegaSTE and the external SCSI drive.

But, during the attempt to boot up off the h/drive after they'd left, the floppy drive won't read disks properly and nor will the h/drive boot off it's own.

So I finally found a few minutes to open the case and I'm looking at the cable which ends up @ jumper 290 (2 pins) on the board with jumper 291 underneath (3 pins).

Which set of pins should this jumper be connected to out of the 5 available as depicted in my naff ASCII art of the pin layout

x * * (290)
* * * (291)

(x is a blank bit - couldn't get the pic aligned otherwise)

I've currently got it connected to pins 290 going horizontal.

Any ideas as want to get my system up and running again.
My main site: http://www.mug-uk.co.uk - slowly digging up the bits from my past (and re-working a few): Atari ST, Sega 8-bit (game hacks) and NDS (Music ripping guide).

I develop a free Word (for Windows) add-in that's available for Word 2007 upwards. It's a fix-it toolbox that will allow power Word users to fix document errors. You can find it at: http://www.mikestoolbox.co.uk

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Postby PaulB » Wed Dec 22, 2004 9:34 pm

Good job i'd left the screws out of mine :D

Jumper 290 is for the power on LED (red to left, black to right with machine front facing you)
Jumper 291 isn't connected to anything, all 3 pins are empty.

Paul.

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Postby Mug UK » Wed Dec 22, 2004 9:39 pm

OK .. fixed that ... part 2 is correct way around for floppy cable .. 1 is for red on the board, but can't see any numbers on the floppy drive!
My main site: http://www.mug-uk.co.uk - slowly digging up the bits from my past (and re-working a few): Atari ST, Sega 8-bit (game hacks) and NDS (Music ripping guide).

I develop a free Word (for Windows) add-in that's available for Word 2007 upwards. It's a fix-it toolbox that will allow power Word users to fix document errors. You can find it at: http://www.mikestoolbox.co.uk

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Postby PaulB » Wed Dec 22, 2004 9:45 pm

I must have my floppy cable back to front cos the red line on the cable is opposite no 1 on the board. My red line on the cable is closest to the power lead on the floppy drive, so yours would go the other way round.

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Postby Mug UK » Wed Dec 22, 2004 9:56 pm

OK left mine @ #1 on board and made sure it was opposite the power lead on floppy drive.

If any hears of a mushroom cloud above Aigburth, Liverpool then it's my MegaSTE going pop!
My main site: http://www.mug-uk.co.uk - slowly digging up the bits from my past (and re-working a few): Atari ST, Sega 8-bit (game hacks) and NDS (Music ripping guide).

I develop a free Word (for Windows) add-in that's available for Word 2007 upwards. It's a fix-it toolbox that will allow power Word users to fix document errors. You can find it at: http://www.mikestoolbox.co.uk

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Postby Mug UK » Wed Dec 22, 2004 10:01 pm

still alive .. but now it won't accept that I got a floppy drive :(

Floppy light on permenantly and won't read from it ... h/drive not booting either, especially when I know the ICD tools are on there etc.

Just tried putting the floppy-cable as per yours and still same result .. floppy light does not go out at all and no h/drive recognised
My main site: http://www.mug-uk.co.uk - slowly digging up the bits from my past (and re-working a few): Atari ST, Sega 8-bit (game hacks) and NDS (Music ripping guide).

I develop a free Word (for Windows) add-in that's available for Word 2007 upwards. It's a fix-it toolbox that will allow power Word users to fix document errors. You can find it at: http://www.mikestoolbox.co.uk

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Postby PaulB » Thu Dec 23, 2004 3:15 am

If the floppy drive light is on all the time then the cable is the wrong way round. It's ok, won't have done it any damage, i've done it a few times myself in the past. Especially with old pc cables that don't have that little (fits one way) block on the connector and no colour coding.

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Postby Mug UK » Thu Dec 23, 2004 8:36 am

So if I swap it around so that the motherboard end has the red at the opposite end, then this should allow booting off the floppy?

Either that or it's time for a new floppy drive as I really need one for these 2500 disks that need imaging up :)
Last edited by Mug UK on Thu Dec 23, 2004 8:37 am, edited 1 time in total.
My main site: http://www.mug-uk.co.uk - slowly digging up the bits from my past (and re-working a few): Atari ST, Sega 8-bit (game hacks) and NDS (Music ripping guide).

I develop a free Word (for Windows) add-in that's available for Word 2007 upwards. It's a fix-it toolbox that will allow power Word users to fix document errors. You can find it at: http://www.mikestoolbox.co.uk

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Postby Mug UK » Thu Dec 23, 2004 8:37 am

edited post as above appeared twice because I clicked on quote and not edit button .. d'oh! Guess who's not awake this morning!
My main site: http://www.mug-uk.co.uk - slowly digging up the bits from my past (and re-working a few): Atari ST, Sega 8-bit (game hacks) and NDS (Music ripping guide).

I develop a free Word (for Windows) add-in that's available for Word 2007 upwards. It's a fix-it toolbox that will allow power Word users to fix document errors. You can find it at: http://www.mikestoolbox.co.uk

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Postby PaulB » Thu Dec 23, 2004 4:14 pm

Yes mate, just flip one end of the cable around the other way and that should do it. The floppy light always on is a warning that the cable is the wrong way round. If it still stays on after you've changed it, then it must be your drive or drive controller.

Paul.

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Postby Mug UK » Tue Dec 28, 2004 6:48 pm

All sorted thankfully .. drive light stays off when not in use and now the h/drive boots up OK - although I had to format it all over again (thankfully all data from old Mega ST was backed up via Ghostlink) so now all I got to do is transfer it all back ... zzzzzzzzz
My main site: http://www.mug-uk.co.uk - slowly digging up the bits from my past (and re-working a few): Atari ST, Sega 8-bit (game hacks) and NDS (Music ripping guide).

I develop a free Word (for Windows) add-in that's available for Word 2007 upwards. It's a fix-it toolbox that will allow power Word users to fix document errors. You can find it at: http://www.mikestoolbox.co.uk


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