IBM Deskstar 5 HD spins down too fast

This ought to be fairly simple, but it's stumped me.  
I recently purchased a 6.4gig IBM Deskstar 5 hard drive for use under Linux, but it spins down after about 15 seconds of disuse.  This causes intolerable pauses while I'm working as the drive spins up to look for another command, and then promptly spins down again.  The IBM storage page claims that the spindown speed is adjustable "via standard ATA commands", but I can't find anything that will let me change the spindown rate.  I need it to be *at least* two minutes for it to be workable.  I had a similar problem with a Quantum Bigfoot that I returned (it had a spindown of almost exactly 60 seconds, and a very long spin-up time); the IBM has replaced it, and the problem has gotten worse.  Am I just having rotten luck with hard drives, or is there something simple I'm missing?  I don't have this problem with either my Quantum Fireball 3.2gig or my Connor 1.2 (neither of them spins down at all, as far as I can tell)
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ResonanceAsked:
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jhanceCommented:
Two possibilities:

1) Check the POWER MANAGEMENT settings in your motherboard BIOS CMOS.  You should either disable or set the spindown for HDD to a longer time.

2) See the documentation for the drive itself.  Many of them have a jumper setting to diable the spin down operation.
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magigrafCommented:
Resonance...

What's your BIOS manufacturer, I will give you the steps then.

Regards
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jrhelgesonCommented:
Is it IDE- Or SCSI?
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ResonanceAuthor Commented:
Sorry.  Basic info:  IDE Drive (secondary master), AMI BIOS on a Tyan Tahoe II motherboard.  BIOS settings checked; spindown occurs at the same time no matter what the time specified in the BIOS says, or in fact whether you disable it completely.  *REALLY* strange that it is only affecting the new hard drives I picked up, except that they are of course much newer models than the Connor 1.2 that used to be in that slot.  I didn't see any options in the BIOS distinguishing between the two.  

Sorry it's taking me so long to respond.  I'm in the middle of preparing for a cross-country move and it's taking up a lot of my time (the reason why I finally posted a question here :)

Anyways, I'm starting to wonder if maybe I really *haven't* done anything wrong, and there is a fault with the motherboard that is only affecting newer drives, and only on the secondary master position.  If I can get some time free I'll swap the drive out with the primary master and let you know what happened.
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alexoCommented:
Try disabling power mgmt altogether.  Does it help?

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JBURGHARDTCommented:
did you to connect your hard disk to different power cable
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ResonanceAuthor Commented:
Alexo: Tried that.  No change

Jburghardt:  Tried that incidentally to the other things I was doing, no change.  If the power cable were bad, however, I'd think that it wouldn't function at all...

I'm going to be off the net for at least a week or two (I'm in the process of moving), but if someone comes up with something brilliant, I'll assign points when I get back :)
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alexoCommented:
Maybe older drives just ignore the spindown command?

There are utilities that allow setting normally hidden BIOS options.  Try them.

* http://www.frankeser.net/drivers/rabbs/utility/ut-syste/AMISE270.ARJ

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abrasionCommented:
i didnt bother reading the other peoples things

but are u SURE its spining down and stopping or is it spinning down and then re-starting on its own

i suggest disconnecting some devices .. booting the thing with a boot disk and just LEAVING it .. if the cdrom / other hdd's are NOT plugged in and it dosent do it

it MAY just be low in power ...you would be surprised :)
try another power plug

and try running it on the secondary / primary ide ON THEIR OWN

since u r using linux i have no idea on pwm mgt i would assume it has none .... i know win 95 turns the spindown ON automatically (b version) but linux ..... nope .... dont think so .. just my 2 cents

try it


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ResonanceAuthor Commented:
1) Try reading the other responses and my responses to them.  It helps avoid wasting time.

2) Yes I'm sure.

3) It's not a power issue.  I tried yanking other devices, and I'm on a 300 watt supply anyway.

4) It was the only device on the secondary IDE when I was testing it.  The primary drive was still connected, but that was because it was the drive I was using to boot.  

5) Linux has power management if you enable it.  I hadn't.

6) Even Win95 doesn't spin down 15 seconds after the last access.  

7) If you aren't going to read the previous commentary, please don't lock the question with an answer.  

=======

Alexo: Thanks for the utility tip.  I'll test it out as soon as my computer arrives (I just moved, and my belongings haven't caught up to me yet...  I'm on a university machine right now).

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JBURGHARDTCommented:
try to install your drive as primary slave this does not help then jumpers setings are incorrect
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jrhelgesonCommented:
I'm pretty sure that you are experiencing the problem that caused a recall on your motherboard from tyan.
Try flashing the bios, if it doesn't work.  I think that's your problem.

Joel
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ResonanceAuthor Commented:
Jrhelgeson:  That was the correct solution.  System works fine now.  Resubmit comment as an answer for points.

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jrhelgesonCommented:
I'm pretty sure that you are experiencing the problem that caused a recall on your motherboard from tyan.
Try flashing the bios, if it doesn't work. I think that's your problem.

Sorry it took so long to re-post my answer, got busy elsewhere.
Glad I could help!

Joel
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