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From: tamboer@cs.vu.nl (Tamboer Erik)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Hard Disk Drive Select LED Always ON.
Message-ID: <9856@star.cs.vu.nl>
Date: 6 May 91 14:58:50 GMT
References: <7503@munnari.oz.au>
Sender: news@cs.vu.nl
Lines: 27

aris@mundoe.maths.mu.OZ.AU (Aris Theocharides) writes:

>I have a problem setting up an AT computer with an NEC D5126H hard disk drive.
>The hard disk controller is a DTC 5280 (MFM).  The trouble is that the disk 
>light is always ON.

I have a Sirex AT with two hard disks installed. Each drive has a light
on it, and there is another light (LED, I know) on the computer's front
panel. The light on the front panel only lights up when there is data being
transferred from/to any hard disk. The lights on the drives themselves seem
to indicate which drive was accessed last. If drive C: was accessed last, the
light on drive C: is on *and stays on* until drive D: is accessed. Then it
goes off and the light on D: goes on.
Perhaps you are looking at one of those..? I can imagine that if you have
only one hard disk drive, its light stays on all the time. In my computer,
the light on the front panel (which is off if no data is being transferred)
is connected directly to the controller board, not to the disk drive.

>Thanks in advance,
>		  Aris.

Bye!
Erik
--
|  Erik Tamboer       o  |  "You know, there are many people in the  |
|  tamboer@cs.vu.nl  <\  |  country today who,  through no fault of  |
|  .    .   .  . .. />   |  their own, are sane."  - Arthur Belling  |