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What HDD Is in the WD 3.5” 1TB My Book Essential? - Page 3

post #21 of 30
Quote:
Originally Posted by the_beast;12632561 
How they label it, and what your interpretation of what their marketing terms mean is irrelevant.

You can quite easily determine the spin speed of a hard drive with a cheapy microphone and any sound card with a microphone input. Record the sound of the drive spinning, then use the frequency analysis plot from your sound recording software - on a 5400rpm drive you will see a peak at 90Hz, but a 7200rpm drive will show a peak at 120Hz. If you Google around you will see several sites have already done this for you.

lachen.gif

You can't be serious right? A microphone next to a hard drive to determine the speed? You know hard drives have gotten quieter over the years right? And even modern 7200rpm drives have different decibel levels.

You really go out of your way to prove your position. I'm just maintaining the position of "I don't know" but you seem adamant that you're right without solid evidence, you've already stated that WD has removed all facts regarding the drive's rotational speed but yet you insist based on lousy personal opinion.
Quote:
Originally Posted by Old Hippie;12632708 
We're doomed to repeat the past if we don't remember it and it's some that think like AZ0 demonstrate this fact.

I'm hoping he/she just missed the memo on the WD drives. smile.gif

So what you're saying is either Newegg or WD is false advertising their drive speed?
No consumer is going to hawk a stupid memo's on a manufacture's website, the world doesn't revolve around enthusiast PC forum.

If you cannot provide proof on WD's website, stop wasting forum space.
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post #22 of 30
Quote:
Originally Posted by AzO View Post


You can't be serious right? A microphone next to a hard drive to determine the speed? You know hard drives have gotten quieter over the years right? And even modern 7200rpm drives have different decibel levels.

You really go out of your way to prove your position. I'm just maintaining the position of "I don't know" but you seem adamant that you're right without solid evidence, you've already stated that WD has removed all facts regarding the drive's rotational speed but yet you insist based on lousy personal opinion.



So what you're saying is either Newegg or WD is false advertising their drive speed?
No consumer is going to hawk a stupid memo's on a manufacture's website, the world doesn't revolve around enthusiast PC forum.

If you cannot provide proof on WD's website, stop wasting forum space.


Actually, you are neither right, nor wrong.

You see, WD no longer says what the rpm speed of their drives is. It varies with each individiual HDD. Here, look at this chart from WD, in the RPM for the various models they only say "Intellispeed".


Second, those two 7200rpm HDD's in the links above are indeed 7200rpm HDD's. But they are older units, and are recertified.

What does this mean ? They were originally sold as WD Caviar. Not blue, not Black, not Green. These brands didn't exist back then (at least not the Green and Blue).

In fact I have the 640GB version in my Media Center, I got the version that was tuned for silence (and it truly is silent - at least the quietest HDD I've ever had), and so has what we now call WD Green class access times.

There is a utility to change that and tune the HDD to work faster, actually.

But this was all before WD came up with the "Green" and "Blue" brands. I'm not sure they already had the Black version by then.

So, they were initially marketed as WD Caviar. And they were 7200 rpm speed. Now that they have the "Green" brand, they recertified those that were tuned for silent operation as Green models, but still working at their original 7200rpm.

So, yes, those are the exceptions. Other than that, Newegg will normally either say they are 5400rpm or just say Intellispeed.
Edited by tpi2007 - 3/6/11 at 5:47pm
 
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post #23 of 30
i need a gif of a crowd watching following a tennis ball to post here...
    
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post #24 of 30
Quote:
Originally Posted by AzO View Post


You can't be serious right? A microphone next to a hard drive to determine the speed? You know hard drives have gotten quieter over the years right? And even modern 7200rpm drives have different decibel levels.

You really go out of your way to prove your position. I'm just maintaining the position of "I don't know" but you seem adamant that you're right without solid evidence, you've already stated that WD has removed all facts regarding the drive's rotational speed but yet you insist based on lousy personal opinion.



So what you're saying is either Newegg or WD is false advertising their drive speed?
No consumer is going to hawk a stupid memo's on a manufacture's website, the world doesn't revolve around enthusiast PC forum.

If you cannot provide proof on WD's website, stop wasting forum space.
Read what I said again. I'm not asking you to measure the sound level, but it's frequency. One of the dominant frequencies given off by any rotating body will be equal to the period of rotation, and is an easy way of telling what the drive spindle speed is. The volume is irrelevant.

I can't provide proof from WD's web site, because it is no longer there (or it is so hidden now it may as well have been removed. However you can find multiple sites where they refer to the document, in which WD explained that 'Intellipower means a fixed spindle speed'.

But hey, if you so obviously can't be bothered to even read what I post, I'm done. If you wish to sit around in blissful ignorance who am I to try and change that.
post #25 of 30
Quote:
Originally Posted by the_beast View Post
Read what I said again. I'm not asking you to measure the sound level, but it's frequency. One of the dominant frequencies given off by any rotating body will be equal to the period of rotation, and is an easy way of telling what the drive spindle speed is. The volume is irrelevant.

I can't provide proof from WD's web site, because it is no longer there (or it is so hidden now it may as well have been removed. However you can find multiple sites where they refer to the document, in which WD explained that 'Intellipower means a fixed spindle speed'.

But hey, if you so obviously can't be bothered to even read what I post, I'm done. If you wish to sit around in blissful ignorance who am I to try and change that.
I am not disputing your claims but find it a rather interesting way of determining rotational speed.

Can I accurately measure hdd rpm with this method? Will frequency be different every 100rpm? Meaning, will I be able to measure a 5400rpm drive vs. a 5900rpm drive?
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post #26 of 30
In the 2Tb ones from black Friday there was WD blacks inside em. I quickly took mine apart carefully and am now using it internally. There's no void if opened seals so I got right on it.
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post #27 of 30
Quote:
Originally Posted by AzO View Post
I am not disputing your claims but find it a rather interesting way of determining rotational speed.

Can I accurately measure hdd rpm with this method? Will frequency be different every 100rpm? Meaning, will I be able to measure a 5400rpm drive vs. a 5900rpm drive?
You should be able to tell the difference between a 5900rpm drive and a 5940rpm drive (although in practice, unless you had these 2 drives next to each other & recorded on the same plot you may not be able to tell the peaks apart accurately enough for that - the measurement error would be too great for any certainty).

The frequency changes continuously with the speed change - if you read SPCR's review of the Green drives (I think it was probably in the review linked in this thread, but I didn't check that so it may not be) they are one of the sites that did this with the Green drives when 'Intellipower' was first mentioned.
post #28 of 30
Quote:
Originally Posted by the_beast View Post
You should be able to tell the difference between a 5900rpm drive and a 5940rpm drive (although in practice, unless you had these 2 drives next to each other & recorded on the same plot you may not be able to tell the peaks apart accurately enough for that - the measurement error would be too great for any certainty).

The frequency changes continuously with the speed change - if you read SPCR's review of the Green drives (I think it was probably in the review linked in this thread, but I didn't check that so it may not be) they are one of the sites that did this with the Green drives when 'Intellipower' was first mentioned.
Interesting, I'll give it a good read. 400 rep!
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post #29 of 30
Thread Starter 
Thats is some interesting answers..
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post #30 of 30
Quote:
So what you're saying is either Newegg or WD is false advertising their drive speed?
No consumer is going to hawk a stupid memo's on a manufacture's website, the world doesn't revolve around enthusiast PC forum.
I see you didn't read my link or are saying you know much more than the Silent PC article.

Cool!
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