How do I fix a super slow macbook?

Question

I'm running a black macbook 4.1. Intel Core 2 Duo @ 2.4 Ghz, 2GB ram, 250GB HD, bus speed is 800 Mhz. It's about 3 years old in excellent shape externally. I treat this thing like a baby.

It used to run awesome but now it's super slow at everything. I get the spinning pizza of death constantly. It takes a long time to boot up or load any program even Safari and iTunes. iPhoto is terribly slow. The internet doesn't work properly and it reminds me of a buggy PC.

I've formatted it and re-installed OSX 10.6 (with all updates) and I've done the disk repairs process. As an iOS developer this is driving me crazy, luckily I have an iMac to work on in the day which is fast. I'm ready to format it again but that didn't work last time. After the last format I copied back files from an external drive so maybe the offending files were hidden in there somewhere.

Here are the Hard Drive and RAM specs. It is upgrade-able to 4GB of RAM.

Hard Drive: The Fujitsu Mobile MHY2250BH is a 250GB, standard hard disk drive. Its burst transfer rate is 150 MBps. This is a 5400 rpm drive and comes with an 8MB buffer.

RAM: 2 Sticks of 1GB DDR2 SDRAM, Speed: 667 Mhz

Answer 1

Despite reformatting the disk and reloading the OS you may still have a disk problem that is causing the Macbook to slow down. I have experienced slow downs like this before and the drive checked out okay using Apple's disk utility. However after replacing the HD with a new one the Mac's behaviour returned to normal. HD replacement on the Macbook you describe is very easy, only a few minutes work.

Hope this helps

Answer 2

I'm going to suggest that you replace the existing hard drive with a new, larger capacity drive. You've already maxed out the ram on this model I believe, or I would recommend maxing that out as well. You would like to select a new 2.5in SATA drive that has a large cache (32mb-64mb), low latency, and seek time, probably 7200rpm instead of 5400rpm. Most drives on newegg.com seem to show these stats, so it shouldn't be too hard to narrow down.

The Larger drive would be better to avoid fragmentation, and hopefully also have faster seek time and better buffering than the factory hard disk which may also improve performance.

Also, be sure you have all system updates applied. The initial release of snow leopard didn't support the Intel GMA X3100 graphics with the 64-bit kernel and had to use the 32-bit kernel, but this was addressed in some more recent system updates and the 64-bit kernel is now supported in 10.6.2 (according to wikipedia entry http://en.wikipedia.org/wiki/Intel_GMA#Mac_OS_X on the Intel GMA)

Answer 3

You could install more RAM. I'm not sure how much this specific laptop will take, but I'm sure Google will tell you if you put the model in. I'm not sure how much this will help, but another option would be to upgrade the GPU (I know it is a laptop.).

Answer 4

I totally agree about replacing the HD. Depending on model of Macbook it can be very easy to replace the drive (see: http://manuals.info.apple.com/en/macbook_13inch_harddrive_diy.pdf) As stated by other users, this can be the source of slowdown. Sometime Disk Utility will tell you nothing is wrong with a disk, you replace the drive and it works perfectly, so clearly there can be bad sectors or head read issues that impede performance but don’t show up on the radar.

I’m also curious if your Macbook runs perfectly after you did a install and prior to importing back your data.

Rather than restoring from Time Machine, you could either a) create a Temp dummy account and use Migration Assistant to import your account back in. b) if you want to be super cautious, reinstall your apps, and bring your data back in piece by piece. Be careful about account names and passwords so you don’t have Privilege issues.

Answer 5

The first step is understanding why it is so slow. What is it doing when it slows down? Is it swapping? Is it having I/O errors on the HD? Check Activity Monitor for RAM usage and Console for any significant messages. And what do you mean by "the internet doesn't work properly"? If you're a developer, you should know that "it doesn't work properly" doesn't cut it as a problem description.

That said, assuming it's not a HD problem, the best upgrade you can do on that machine is increasing the RAM to 4 GB.

Answer 6

I think you haven't maxed out the ram, I got the same laptop as yours. The suggestions above are completely great. According to my record your macbook can take up to 6 GB or RAM (Apple mentioned 4 GB, but other people successfully installed 6). Check out "mactracker".

BTW, if you can move your iPhoto library to your iMac completely (and maybe cut your music collection in half), try to buy an SSD. A little bit pricey, but if you can get an 80GB one (and if it's enough for you), this is a real speed boost. Will lengthen the life of your laptop for another 3 years.

Answer 7

HDD may be cluttered.

Remove unneded programms. If fails getting speed Reinstall it. It will be same effect as on ned HDD. i dont know why should HDD have problem if its on desktop and not been in 10 earthquaces. If fails install free Ubuntu and forget about mac and paying for programms and mac viruses- any viruses. download it from ubuntu.com

Answer 8

HDD is no problem. Open the Disc Utility program, which is located in the "Utilities" folder of your "Applications" directory. Highlight your hard drive from the list and have the program repair the permissions. This is an easy way to correct some common computer errors which could be slowing your hard drive down. If you use iMovie with Mac OS X 10.3 Panther, and FileVault is enabled, performance issues can occur if your project is located in your encrypted home folder (including the desktop) Another option is to back up your important files, erase the hard disk, then reinstall Mac OS X and your backed up files.