Hard Drive Mechanism - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > Monitors, Printers and Peripherals
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 02-20-2005, 03:39 PM   #1 (permalink)
Newb Techie
 
Join Date: Feb 2005
Posts: 34
Default Hard Drive Mechanism

Atlas IV SCSI Drive;pc board is removed and the 4 motor drive pins are accesible.My question is,are the 4 pins oriented the same as the external power plug?(+5-COM-COM-+12)If so,can I test the motor by applying +12-COM?
__________________

asdco is offline  
Old 02-20-2005, 04:22 PM   #2 (permalink)
Master Techie
 
Join Date: Sep 2004
Location: Potsdam NY, USA
Posts: 2,003
Send a message via AIM to AND_YOU_ARE Send a message via Yahoo to AND_YOU_ARE
Default

Why do you need to test the motor? The red wire is the 12v, yellow is 5v and the black one is the return for each voltage.
__________________

__________________
Member of the right wing conspiracy theory.

X-Fire: andyouare1
AIM: plantagenet51

Ars Technica

Silent PC Review

Xtreme Systems
AND_YOU_ARE is offline  
Old 02-20-2005, 05:15 PM   #3 (permalink)
Newb Techie
 
Join Date: Feb 2005
Posts: 34
Default

The drive quit running so I decided it was time to see exactly how it runs theres no color coding on the pins on the bottom of the motor,thats why I need to know if the voltages are oriented from left to right as the external power lead.
asdco is offline  
Old 02-20-2005, 07:05 PM   #4 (permalink)
Monster Techie
 
Join Date: Jul 2004
Posts: 1,349
Default

if the HD wasnt damaged in any way, and its not 50 yrs old or something, id doubt that it would be the motor thats the bad part. theres prolly a bad circute on the bourd.
jolancer is offline  
Old 02-20-2005, 07:33 PM   #5 (permalink)
Lord Techie
 
Join Date: Jan 2005
Posts: 8,013
Send a message via AIM to DJ-CHRIS
Default

I had hard drive mechnically fail. This means it wont even spin up.
DJ-CHRIS is offline  
Old 02-20-2005, 07:38 PM   #6 (permalink)
Master Techie
 
Join Date: Sep 2004
Location: Potsdam NY, USA
Posts: 2,003
Send a message via AIM to AND_YOU_ARE Send a message via Yahoo to AND_YOU_ARE
Default

Quote:
Originally posted by asdco
The drive quit running so I decided it was time to see exactly how it runs theres no color coding on the pins on the bottom of the motor,thats why I need to know if the voltages are oriented from left to right as the external power lead.
Connect the molex power connector to see which one is which, from left to right, all i know is that red is 12v, yellow is 5v.
__________________
Member of the right wing conspiracy theory.

X-Fire: andyouare1
AIM: plantagenet51

Ars Technica

Silent PC Review

Xtreme Systems
AND_YOU_ARE is offline  
Old 02-20-2005, 08:09 PM   #7 (permalink)
Techie Beyond Description
 
Nubius's Avatar
 
Join Date: Aug 2004
Posts: 11,600
Default

When the molex is plugged in right side up it's

1. Red
2. Black
3. Black
4. Yellow


if it's upside down then obviously it'd be opposite of that going left to right.
Nubius is offline  
Old 02-20-2005, 09:21 PM   #8 (permalink)
Newb Techie
 
Join Date: Feb 2005
Posts: 34
Default

Maybe its salvageable?Heres what happened;I purchased it as used and it was shipped to me.I hooked it and every time I tried to boot it would shut my pc down(even after shutting off power management).Thinking something got damaged in shipment,I gently tapped on the sides of the case and Voila,it spun up!I loaded windows on it then went to bed.Next day,the damn drive shuts the pc down again!This time when I boot, the pc starts but no scsi drive recognition.Both green and yellow LED's stay lit on the drive.Was it a coincedense that it started after a tap?I,ve had the top off and the the disc spins freely and the arm goes to start position when power is applied to it.
asdco is offline  
Old 02-20-2005, 10:18 PM   #9 (permalink)
Lord Techie
 
Join Date: Jan 2005
Posts: 8,013
Send a message via AIM to DJ-CHRIS
Default

oh my, by having your top off and having it in a non-clean room, you ruined your hard drive most likely
DJ-CHRIS is offline  
Old 02-20-2005, 10:50 PM   #10 (permalink)
Newb Techie
 
Join Date: Feb 2005
Posts: 34
Default

well,I took the time to make a plastic box and was lucky enough to find some lab gloves which I attached to holes cut in the side.So far no dust.
I see you use open source,linux?I've been leaning that way myself but havent switched yet heheh.
__________________

asdco is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:52 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.