Are 7200rmp much noiser than the 5400rpm?

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philip · #1 Post by **philip** » Fri Nov 25, 2005 7:04 pm

Just wondering... if not, then why would someone buy the 5400 ones?

In my T43 custom page the difference is $10....

Thanks,

Philip

#2 Post by **jdhurst** » Fri Nov 25, 2005 8:23 pm

Today, it is a big "it depends".
Prior to the 100Gb 7200rpm drives, I would always recommend the 7200rpm drive at anything 60Gb and less. The 5400rpm 80Gb proved fast enough for most uses, and offered more space, so I was happy to recommend that drive as well. I use the 60Gb 7200rpm drive and am getting pricing on a Hitachi 100Gb 7200rpm drive. ... JD Hurst

#3 Post by **daeojkim** » Fri Nov 25, 2005 10:01 pm

The performance of the new 7k100 100GB drive is significantly higher than all of the 5400 rpm drives and the 60GB 7200 rpm drive.

The 60GB 7200rpm drive's performance, although faster than the 5400rpm 100GB drive, is not "that" much faster.

As far as the noise issue, the 60GB 7200rpm was noticeably noisier than seagate 5400.2 100GB drive.

kai920 · #4 Post by **kai920** » Fri Nov 25, 2005 11:58 pm

I have the 7K100 80gb drive, and although I don't have a 5400rpm to compare to, I can tell you that the noise is not an issue for me at all...

It does feel warm to the touch in the "bottom-right" area though, where the finger print reader resides.

seguetester · #5 Post by **seguetester** » Sat Nov 26, 2005 2:42 am

I have a 60GB 7200RPM. The noise is not an issue....but man the heat sure is.

kai920 · #6 Post by **kai920** » Sat Nov 26, 2005 4:01 am

seguetester wrote:I have a 60GB 7200RPM. The noise is not an issue....but man the heat sure is.

You feel the heat your palm or thru the bottom of the computer?

Is yours a 60GB 7K100? (HTS721060G9AT00)

#7 Post by **aamsel** » Sat Nov 26, 2005 1:00 pm

Depending on the particular drive you happen to get, a 7200rpm drive can cause more vibration. I have found vibration to be more of an issue than noise. Basically, you can sometimes feel the drive through the palmrest.

Andrew

christopher_wolf · #8 Post by **christopher_wolf** » Sat Nov 26, 2005 3:54 pm

That would have to be a pretty questionable drive though for it to vibrate enough to bother someone; that would tend to suggest that drive failure is imminent.

#9 Post by **aamsel** » Sat Nov 26, 2005 4:19 pm

I am not talking HUGE vibration, I am simply saying that a 7200rpm can obviously create more vibration than a slower drive.
It is subtle, but it is there.

Andrew

#10 Post by **jdhurst** » Sat Nov 26, 2005 4:28 pm

I have had my T41 on all day. The 7200 rpm is not vibrating significantly, it is very quiet, and it is running at 37 C (same as the CPU as it happens).
... JD Hurst

christopher_wolf · #11 Post by **christopher_wolf** » Sat Nov 26, 2005 4:37 pm

There should be no vibration in a Hard Drive, the heads are flying 12nm above the disk platters, any vibration caused by the spinning of the disks is extremely dangerous and could lead to a head crash; there are some very complicated control systems designed to keep the head, and just about everything, from vibrating at all during movement. Take, for example, the Head moving across a disk. It is light, and very strong, the perfect combination for high resonance frequencies that are generated by movement to take it and slam it into the platter that is only 12nm away repeatedly. I have seen these control systems and the closed loop representations in MATLAB, their sole goal is to eliminate vibration. So you try to minimize how much you touch the head, one "impulse" kick to get it moving...then another "impulse" to stop it where you want it. This is to minimize the vibrations that have significant resonance frequence components from building up and vibrating the head and arm. I have seen these things get designed and I have also played around with models on the computer myself. A 7200rpm HDDshouldn't vibrate and neither should a 5400rpm HDD.

#12 Post by **aamsel** » Sat Nov 26, 2005 4:38 pm

Again, I did not mean to make it sound like the vibration was significant. However, if you are sensitive, you may notice more vibration.

Andrew

Esteban · #13 Post by **Esteban** » Sat Nov 26, 2005 4:39 pm

The hard drive in my IBM T42 2373M3U, a 7200 rpm 60 GB drive, is nearly silent and barely warms the palm rest. It's much quieter than the HD in my prrevious notebook, a 4 year old Dell Inspiron.

christopher_wolf · #14 Post by **christopher_wolf** » Sat Nov 26, 2005 4:44 pm

That is more of a measure of the vibration imparted to the case of the HDD, and therefore to the palmrest, of the Thinkpad, then anything which the disk acutally experiences. If the platters were actually exposed to such vibration levels, big trouble would result. I have had many 5400rpm and 72rpm drives and have felt the vibration; even measured it quantitatively in the Lab for a class. If there is significant variabions in the vibrations between a 5400rpm and 7200rpm drive; that would be a strong indication of something wrong with the drive.

hootpie · #15 Post by **hootpie** » Sat Nov 26, 2005 5:50 pm

I had a T43 with an 80gb 5400rpm drive. I now have a T42 with a 60gb 7200rpm drive. The 7200rpm is only louder if you are somewhere completely quiet, but even then it's not that loud, especially if you use NHC's acoustical management.

Are 7200rmp much noiser than the 5400rpm?

Are 7200rmp much noiser than the 5400rpm?

Mine is nearly silent

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