Vibrations on toshiba nb505-n508bl w/ Seagate Momentus HDD

Hi all, I recently installed a new Seagate Momentus (ST9750420AS 750GB 7200 RPM 16MB Cache 2.5" SATA 3.0Gb/s Internal Notebook Hard Drive) on a Toshiba nb505-n508bl. . . . Even with the flimsy aluminum factory HDD "caddy," it still vibrates/buzzes a bit too much for my comfort. The rubber grip fittings on the bottom of the netbook are in good condition, so that's not the issue. And while vibrations are clearly reduced when on a stable, perfectly flat surface, they still occur on occasion. Also, the netbook seems vibration sensitive/susceptible to even the slightest pressure on the keyboard surface above/nearer the HDD (the mouse buttons just to the left of the HDD or the arrow keys that are directly above the HDD). Of course I have also run several HDD scans with the appropriate utilities (both with Windows and Seagate disk scanning utilities), and the drive always scans perfectly clean and error free. So my first questions:
1. Do any hardcore Toshiba netbook users know of a more solid/stable non-toshiba HDD caddy to better secure a higher speed HDD than the flimsy aluminum caddy?
2. Does anyone know if the Toshiba nb505-n508bl simply is not made to handle 7200 RPM (b/c it originally came with only a 5400 RPM HDD)?
Thank you!
Toshiba nb505-n508bl
Windows 7 Home Premium
Intel Atom CPU N455 @ 1.66 GHz RAM 2.00 GB
32 bit OS

Hi, moscatomg1:
I am sorry about your present condition (sympathy, first). However, please be informed that this issue was an initial reason I disliked my Toshiba Notebook computer. It has one additional design "problem" and that is not being able to set the viewing angle of the built-in monitor to my satisfaction (unless it is on a high rigid surface). Nevertheless, the built in Toshiba utility, Disc Monitor, was problematic because if it was enabled it would always be triggered by "slight" vibrations or movements. Moreover, it has a poor heat dissipating system and disturbs me if placed into sleep mode for long periods because of this. I feel it I a fire hazard if placed in the wrong environment. Happily, I really like it otherwise. If not for those deficiencies it would be PERFECT, in my way of thinking.
So, I think your solution is not good, Mos. Aluminum heats up quite readily. Also, you are probably using Styrofoam "cushions" which are flammable unless treated. I am sorry I wasn't of any help and I can't think of what is causing those sounds other than the R/W heads moving across the hard disk surface. This indicates poor construction too.
Good luck!
Bi-ill
Good luck!
Sincerely,
Bill5960

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