I would have given 4.5 stars prefer ...

... There with me a little start-up problems were! Since I could not but resolve this, I have now but 5 star donated.
Zuerstmal to the elementary things:
The installation went very easy in my Asus U30SD. Everything fits, since everything is standardized on 2,5zoll!
The speed of the disk is (after removing the initial problems) over top!

According to the program "AS SSD Benchmark" read seq. 410 MB / s read, write 194 MB / s.
Windows of the performance index (that is the maximum) increased from 5.6 (Hitachi 320GB 5400 U / min) to 7.9.
Although it is possible to argue about the accuracy and Relevant awareness of win-capacity index, you can certainly draw comparisons between two components!

The initial problems:
1) I had first of all, my HDD 1: 1 mirroring and copy it to the SSD, so I will not re-install everything etc. must. However, this has proved to be not so recommended, as this important part of Windows settings are not created and adopted for SSD's. This Windows has recognized the SSD is not reasonable. While storing and work was possible, but AS SSD I've always displayed an error and the performance index has the plate "not compatible" abgezeigt testing as.

Nungut, Windows CD clean, format disk and reinstall Windows completely fresh.

2) No sooner said than done. When you install Windows now has automatically applied the correct settings for the SSD's, so that the Device Manager, the performance index and AS SSD could work properly with the plate. However, a common mistake is predominantly displayed when I tried to boot the laptop the next day: he has not booted !!!
Laptop, again, from the BIOS -> me a lot a that a command of "IDE" to "AHCI" had to be changed. However, this was the case. F10 for Save & Exit and he drove normally high. I clicked me in the Crucial Forum and figured out how to fix the problem:

I do not know if this only works on laptops from Asus, but there is in the BIOS a command called "FancyStart", which must be made from inactive to active. No sooner said than done: WORKS !!! The laptop will boot normally, as you want it up and running quickly and without problems !!
I have about 3 days for installation and diagnostics required therefore prefer the "4.5 stars".

On the whole, I am satisfied; I press the "on" switch and 22 seconds not later I'm already on my homepage of Firefox =) but I have to mention the fact that I have a one month gerademal young laptop. Already a i5er the newer generation and 8GB Ram. You may enter these components also have a rash on the boot time. Nothing is more, despite common knowledge that HDD's now are too slow for computer systems, so that I can issue a strong buy recommendation for SSD's in general, and especially for this here. Due to the good controller of the SSD such extreme values ​​are reached, other producers create the not so good.

My drive is now installed about a week, the laptop runs about 6 hours a day and I have not experienced any freezes, as was the case for example with the C300.