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 Post subject: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 5th, 2018, 13:48 
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Joined: April 10th, 2007, 9:53
Posts: 335
I have a WD 3200AAKS that reads fine on all heads from about 18% into the drive and beyond. That first 18% though is a nightmare. The drive will read a sector, cycle the power, and then read the next sector...then the next sector it cycles the power and reads the sector after that. I've tried every DDI setting I can think of. I don't believe it's an issue with the drive physically. I have 3 of my PC3K machines tied up right now so I can't check it yet, but I'm wondering if it's a system area issue with one of the modules. Anyone else seen this? Like I said, it's just that first 18% of the drive that it hits areas where it hangs and cycles the power over and over. Beyond that point, it reads just fine at normal speeds.


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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 5th, 2018, 14:04 
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Joined: April 4th, 2008, 6:24
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Location: UK
Pinclite? Just had a case in like this, it came in from a dealer and suspect it had been seriously messed with, there were 'issues' with quite a few A-S critical mods, after lots of time re-building from copy1, 2 and making good, HDD came ready absolutely no issues and cloned >90MB per sec, save for <100 unread UNC sectors, from memory, in my case mods 4Xh, 31h, 03h, 04h seemed to have 'issues'.

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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 8th, 2018, 15:19 
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Joined: April 10th, 2007, 9:53
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I've done all that was suggested and this drive is just crazy. It works fine and then it hits those areas in that first 18% and no matter what you do, it constantly power cycles almost every sector.


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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 8th, 2018, 15:27 
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Joined: November 29th, 2006, 10:08
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Location: UK
Spildit wrote:
Try to replace the PCB as well just in case ...



I was just about to suggest that, have seen quite a few Tornado drives that wouldn’t read the first ~33% and turned out the PCB was at fault.

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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 8th, 2018, 15:45 
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Joined: October 21st, 2007, 8:48
Posts: 1631
IMO, most likely FW problem than PCB failure.


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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 8th, 2018, 15:54 
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Joined: October 21st, 2007, 8:48
Posts: 1631
Drive is PINCLITE.


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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 9th, 2018, 9:34 
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Joined: April 10th, 2007, 9:53
Posts: 335
Thanks for all the feedback folks. Going to try and swap PCB's at some point today and will update. Now that I think of it, I had an issue almost like this years ago and it was the PCB.


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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 9th, 2018, 14:36 
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Joined: April 10th, 2007, 9:53
Posts: 335
Well, the PCB was the culprit. It's imaging perfectly now. What a crazy job. I just never thought initially, since everything seemed to be good to go past that 18% mark, that there could be an issue with the PCB. It just threw me for a loop at how perfect everything operated past that point. Definitely logging this resolution away.


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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 9th, 2018, 15:02 
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Joined: October 21st, 2007, 8:48
Posts: 1631
Glad it worked for you. :good:


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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 9th, 2018, 15:49 
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Joined: November 29th, 2006, 10:08
Posts: 7843
Location: UK
Nice :-)

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 Post subject: Re: WD 3200AAKS Constantly Power Cycles In Certain Areas
PostPosted: May 9th, 2018, 17:23 
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Joined: April 10th, 2007, 9:53
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Thanks! And thanks for all the input and suggestions.


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