I have already told you about the misadventures of my 12″ PowerBook hard drive in this entry. In it I told you that I had bought a new hard disk to replace the previous one, a Hitachi Travelstar 80 Gb , 8Mb cache memory and 7200 RPM . Apparently it is not recommended to install a 7200 RPM hard disk because of the heat it gives off, and also because the consumption is higher than a 5400 hard disk. This reduces the time of use when feeding our laptop with the battery. The advantage of such a disk is that the performance is much better than with the original hard disk, as we will see later on.
Changing the hard disk of a PowerBook is, apart from being heavy, a bit messy because of the variety of screws used and we don’t recommend it. If, despite our advice, you want to roll up your sleeve and do it yourself, we recommend that you read on. We are going to give you some very valuable advice to make the operation as bearable as possible.
Let’s get to work. For the surgery to be successful, we need a few things. First, to have time. The process can take about an hour and a half. Obviously, we need to take it easy, no rush, no stress. Second, to have a well-lit and sufficiently large work table. Third, a good set of screwdrivers is essential. No “all in a pack” screwdriver set. Why? Well, I found out that Superman is working overtime tightening the screws on Mac laptops . If the screwdrivers aren’t any good, we’ll eat the heads of the screws and have quite a few problems. Fourth, have a tablecloth or a mat to put under the laptop while we are handling it. This way we will avoid scratching it or worse. Fifth, a roll of tape.
At this point, we download as a pdf and send to the printer the iFixit guide on how to change a hard disk. It is essential to print it on paper as we will see below. While it is printing, we go to the kitchen and make ourselves a lime tree to calm our nerves.
Once printed, we read it carefully. On the first page it tells us that we need a screwdriver
Apart from cursing in Hebrew a few times over the issue of screws being too tight (again, patience and good screwdrivers) the process is simple. After mounting everything again, we insert the system disk and reinstall the operating system. The laptop heats up a bit more in the hard disk part, but the performance is much better. The application load really flies. I have not been able to take measurements of the previous hard disk for comparison, among other things because I do not trust the veracity of the measurements when the disk is “half broken”. What I have done is run some tests with the new hard drive using the Xbench utility, and then compare those results with the ones on your website.
You can see the results here:
If we compare them with the results on the Xbench page of the original 40 GB 4200 RPM hard drive, we see that the performance is quite better. In fact, the score obtained is more than double (34.08 versus 15.4):
We hope to have given you a few tips with this entry.