2.5 ide hdd cable orientation check \ VOGONS

2.5 ide hdd cable orientation check

Topic actions

First post, by voodoo47

Posted on 2018-08-20, 08:01

voodoo47 Offline

Rank Newbie

Rank: Newbie
Posts: 47
Joined: 2016-03-09, 16:18

the motherboard connector has a proper notch so no chance of messing up at that end, the drive however doesn't, so it would be great if someone could confirm whether I'm doing this right - the drive has no markings indicating where pin1 is, google image search suggests pin1 should be next to those extra four pins that are not used by the cable, but better safe than sorry (almost sure that if connecting this incorrectly, pretty much everything will end up dead). also, does anyone know which pins actually carry power? //ah, should be the ones at the opposite end.

thanks.

3Dfx Help Page

Reply 1 of 6, by stamasd

Posted on 2018-08-20, 11:26

stamasd Offline

Rank l33t

Rank: l33t
Posts: 2030
Joined: 2014-08-31, 19:59
Location: Connecticut

http://old.pinouts.ru/HD/Ata44Internal_pinout.shtml

Yes, pin 1 should be near the master/slave 4-pin block and 5V is carried by pins 41/42 at the other end.

I/O, I/O,
It's off to disk I go,
With a bit and a byte
And a read and a write,
I/O, I/O

Reply 2 of 6, by PARKE

Posted on 2018-08-20, 12:24

PARKE Offline

Rank Oldbie

Rank: Oldbie
Posts: 926
Joined: 2015-07-31, 12:46

Indeed. But I suspect that this is not the right cable for this setup - should be something like this I think:
http://www.cablesonline.com/940pinto44pi.html

Reply 3 of 6, by voodoo47

Posted on 2018-08-20, 12:26

voodoo47 Offline

Rank Newbie

Rank: Newbie
Posts: 47
Joined: 2016-03-09, 16:18

no, they are both 44pin ide connectors, so regular 44pin ide cable is ok. anyway, connected as shown on the attached screenshot and booted the system, and no explosions so far, so looking good.

3Dfx Help Page

Reply 4 of 6, by PARKE

Posted on 2018-08-20, 13:34

PARKE Offline

Rank Oldbie

Rank: Oldbie
Posts: 926
Joined: 2015-07-31, 12:46

Interesting, I have not seen that configuration before. Good that it works.

Reply 5 of 6, by voodoo47

Posted on 2018-08-20, 14:02

voodoo47 Offline

Rank Newbie

Rank: Newbie
Posts: 47
Joined: 2016-03-09, 16:18

it's a Terra TK-3770 thin client - it has two 44pin ide connectors on the board, but they have all the pins (normally, one pin is not present on the connector, and a regular cable is keyed accordingly so you can't connect them improperly), so you have to use a cable that is not keyed in any way, but that also means you CAN connect it the wrong way, and as there is power going through there you are in a serious risk of burning everything should you do that.

3Dfx Help Page

Reply 6 of 6, by PARKE

Posted on 2018-08-20, 15:41

PARKE Offline

Rank Oldbie

Rank: Oldbie
Posts: 926
Joined: 2015-07-31, 12:46

Yes, that seems obvious.
Thanks for the explanation. I did find this link
http://paulski.com/zpages.php?id=1717
but I don't think I will ever need the info personally 😉.

Go to top of page Go to top of page

Back to General Old Hardware