Re: [iopener] My 2.5" cable doesn't work

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From: Greg Underwood (gunderwood@donet.com)
Date: 05/03/00-02:15:12 AM Z


At 12:07 AM 5/2/00 -0400, Guy wrote:
>It's not all that hard. Start with six inches of cable and two ends.
>Clamp one of the ends on the end of the cable.

<...>

>Be sure the Hard Drive is set
>for Master (usually no jumper). You must have the 10/1/99 bios in
>your IO. As the IO boots, press the Tab key. This will show you the
>bios boot text, and you can see it autodetect your HD.

This last paragraph is good... do make sure you have the right BIOS before
you try anything else. However, I think you was hopping for some help
beyond just how to make the cable, since you said this:

>On Mon, 1 May 2000 22:14:10 -0500, "Dustin Cote"
><dustincote@home.com> wrote:
>
>>I've tried everything. I have a working 2.5" hard drive that is bootable in
>>my towerPC, and a modified cable from NWCable... and the IOPENER is getting
>>nothing. I've tried everything. (I have 1,568 IOPENER emails to search
>>through in my mail...)

>>Could someone point out the 1-2-3's on how to hook up a 2.5" hard drive to
>>your IOPENER, including any BIOS settings. I *must* be missing something.

hmm. Well, since it boots ok in your Tower, yeah, the cable does seem to
be the suspect. Here's a rundown of what I did:

remove all HDD from my main system
Plug in 2.5" drive as master, and 1 CD drive as slave.
Config BIOS to boot from the CD, then the HDD.
Inserted win98 CD in drive, and let system boot from it.
FDisk the 2.5" drive:
   created 1 large partition
   set as primary dos partition
format 2.5" drive, using /s to make it bootable.
copied win98 dir from CD to hdd.
eject CD
reboot to make sure HDD will boot the system.
remove HDD and move to IO
connect hdd to IO -

basically, for the toshiba drive I have, the pins are like so:

   ...................... ..
   ............ ......... ..
   ^ ^ ^ ^^
   44 20/key 2 jumpers

The important thing for connecting the cable is to line up pins 1&2 with
pins 1&2 on the IO main board. Assuming you get those lined up, the system
should boot fine.

I did run into a problem with my setup though. With the pins lined up, it
was still not booting right. The BIOS would POST, but when it went to
detect the HDD and SunDisk, it would fail. Going into the BIOS and telling
it to autodetect the IDE devices would also fail (it'd take a long time,
and eventually say it found nothing on either device). This is usually a
symptom of the IDE devices not being properly jumpered for their mode. IE:
both devices are jumpered as master or slave, or one is set to cable
select, and one to master or slave. I found 2 solutions:

1) disable the primary slave autodetect in the BIOS (change it from Auto to
None). This causes the system to boot w/o the SunDisk active.

2) put a jumper on the bottom two jumpers, enabling the Cable Select on the
drive.

Either way it will boot, but the later gives you access to the SunDisk, and
is how I have my system configured now.

If all of that doesn't work, you probably have a bad cable. Got a
volt-meter handy? Or, better yet, a friend with a working IO? If'n you
can't find a handy friend, I'd be willing to test it in my system, if you
mail the cable to me.

-Greg

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