Macintosh Se 80 pin scsi hd

[Cera]

Hello, I'm new here. tried to register some years ago but something went wrong... btw this time all worked fast and properly 

Well, I need some help with my mac SE. This thing started to fail after 37 years of life

So i thought that buying another 50 pin probably dying and sometimes not cheap 50 pin wasn' t a good idea.

i really liked sata or CF interfaces but now they're really out of my budget... then i read some people adaptin 68 or 80 pin scsi server drives.

it seemed a good way to give a newer hd 2 gig partition to my Se.

So I ebayed for few money this

and this

the adapter has for 4 id jumpers but none works. tried to boot with a floppy with hd setup patched and then with another with a light system 6 folder and lido 7.5: no scsi devices can be detected. 

now i'm not expert in scsi chains and terminations... is there a way to make work this thing ?

I thought lido or patched hd setup could recognize the 9 gig drive but it' not so..

thank U in advance for any info 

 

[Macdrone]

ok not all of those drives are compatible.  There is a thread on requirements somewhere.  ID0 should be set for internal which looks correct.  Beyond that I personally dont know much more.  Im sure others will jump in when they see your post.

 

[Cera]

ok thank U for the moment! I eventually can sell this drive and take another compatible. perhaps i need a 68 pin... it' s important to me to understand if this adapter can work with success on a compact mac. hope someone that used it can tell me something. 

 

[Macdrone]

the type of drive being backwords compatible and something to do with sector sizes may have something to do with it.

 

[Cera]

this is what lido says with id0 jumper

 

[Cera]

EDIT

sorry it wasn't a 9 gig it' a 36 gig, her the specs:

Fujitsu Impresa 36,7 GB Ultra-320 SCSI HDD SCA 80 Pin 10K rpm 8MB MAP3367NC

specs of the adapter:

KDQ28 SCA 80 Pin to 68 Pin 50 Pin Ultra SCSI II/III Adapter Converter SPC-2603
 
and the quantum failed after 27 years not 37  :beige:   :beige:   :beige:
but sometimes in strange positions still boots up, very rare...

 

[poobah]

parity?

 

[techknight]

Its not going to work. 

You need the NP model, you have the NC model. the NP model allows you to run in 8-bit narrow mode which is a requirement. the NC doesnt support that. 

When researching SCSI drives, you need the narrow mode support. Here is the installation manual for your drive:

http://www.fujitsu.com/downloads/COMP/fcpa/hdd/discontinued/map-10k-rpm_jumpers.pdf

 

[Cera]

ok so the interface card will work, it's the drive my problem? can you give some example of brands and models of drive known to work? As i wrote i'm really not expert in scsi drives, in the manual you posted the back of the drive is identical except for the jumpers that mine don't have. Is this the difference between nc and np (apart 8 bit mode)? if i find np should i prefer 68 or 80 pin? the card accepts the 2 standard

from the images in the manual seems to be a 68 pin, i see the power input on the right

 

[Cera]

http://www.ebay.it/itm/36-4GB-Fujitsu-MAX3036NP-80-pin-SCSI-Hard-Drive-Disk-PER-SERVER-15000rpm-/281827240257?hash=item419e366941:g:0DAAAOSwrklVT5GP

this is what i need? i see the schematic of the pins on the right are the same of the manual techknight posted. 

i read 10k is better then 15k and also less noisy.it's true? 

 

[Apache Thunder]

Looks like the adapter you have doesn't have active termination. Even if you get the right drive it might still not work. Not sure how the newer 80pin drives handle termination. I'd imagine you may run into issues with that if your adapter doesn't do that for you.

 

[johnklos]

You need an SCA to 50 pin adapter which has termination built-on. SCA drives never have termination in the drives themselves.

 

[Cera]

ok so i have wrong adapter and wrong hard disk! very well 

thank you very much for your replies 'cause i was going to buy a np but cheaper than that i posted.

ok stop,i'm tired i won't buy anything. i'm going to find a 50 pin bigger than the original that now is really dead

it'll not be simple cause they're not cheap and also aged... hope to have luck. thank you all!

 

[Cera]

Finally i installed for a period a quantum fireball se with 2 gig partition. i wasn' t satisfied cause it was very noisy plus i prefer original machines so i found another 40 meg quantum from another se. Now i'd like to use the the quantum fireball se as external hard drive to use with my lc and se. problem is that i've got no cables or enclosures. possible cheap solutions? find an old enclosure like rodime or what?.. :-/

 

[Bunsen]

Have you considered a SCSI2SD?

 

[Unknown_K]

80 pin SCA and 68 pin LVD drive cane be used with adapters if they work in SE SCSI mode (some 68 pin drives have a jumper to select this while other just work). Once you find the proper drive and adapter you have to worry about termination. As far as I can remember the SE bus is just one bus (external and internal connectors are the same port) so you can just stick an external terminator on the SE and all is good. If not you can use an internal 50 pin SCSI cable with a terminator at the end or a hard to find SCA 50 pin adapter with termination (I have one that take a small plug in part for termination). 68 pin SE native drives have terminator jumpers on them.

 

[Bunsen]

Where "SE" in this case stands for "Single Ended SCSI" also known as SCSI-1

 

[Cera]

Have you considered a SCSI2SD?

It's cool but very expensive