Speeding up my Early 2008 iMac

Hi ..

Not enough free storage space can slow your Mac down.

Click the Apple  top left in your screen. From the drop down menu click About This Mac > More Info > Storage. Make sure there's at least 15% free disk space.

Freeing space on your Mac OS X startup disk

Repair permissions.

Launch Disk Utility located in your Applications > Utilities folder.

Select the startup disk on the left then select the First Aid tab.

Click: Repair Disk Permissions

This can take awhile so don't be alarmed.

Restart your Mac after Disk Utility is finished.

Reindex Spotlight > Spotlight: How to re-index folders or volumes

Check to see if the startup disk needs repairing.

Launch Disk Utility located in HD > Applications > Utillities

Select the startup disk on the left then select the First Aid tab.

Click: Verify Disk (not Verify Disk Permissions)

If Disk Utility reports errors, restart your Mac while holding down the Command + R keys. From there you should be able to access the built in utilities in OS X Recoveryto repair the startup disk.

Make sure to back up all important data first before using OS X Recovery.

Anti virus software, as well as third party Mac cleaning utilities such as MacKeeper and CleanMyMac can also slow your Mac down.

v10.9.2 is outdated. Keep OS X software up to date for security.

Click the Apple  top left in your screen.

From the drop down menu click: Software Update

See:

How to eliminate slow Mac problems,
Mac Maintenance Quick Assist,
Mac OS X speed FAQ,
Speeding up Macs,
How to Speed up Macs,
Macintosh OS X Routine Maintenance,
Mac troubleshooting: What to do when your computer is too slow,
Essential Mac Maintenance: Get set up,
Essential Mac Maintenance: Rev up your routines,
Maintaining OS X,
Five Mac maintenance myths, and
Myths of required versus not required maintenance for Mac OS X for information.

27" i7 iMac (Mid 2011) refurb, OS X Mavericks (10.9.4), ML & SL, G4 450 MP w/Leopard, 9.2.2

You can install a maximum total of 6 GBs of RAM (Replace one of the 2 GB RAM sticks with a 4 GB RAM stick).

Correct, compatible and reliable Mac RAM can only be purchased from online Mac RAM sources Crucial memory or OWC (macsales.com).

OWC (macsales.com) is the only source of the 4 GB RAM modules as Crucial Memory tends to only stick to Apple's originally written RAM spec at that time.

OWC thoroughly tests RAM and both 2007 and 2008 model year iMacs can take a total of 6 GBs of RAM.

http://eshop.macsales.com/item/Other%20World%20Computing/6400DDR2S4GB/

If you are a DIY sort of guy, since your iMac is long out of warranty, look to the iFixit website to find repair and assembly manuals as well as teardown and reassemble videos for your year and model iMac.

You could replace the internal hard drive with a faster internal SSD (Solid State Flash Drive) and use an externally connected FireWire 800 hard drive for data storage and backup.

OWC (macsales.com) is a good source for everything Apple and they have both SSDs and hard drives that work very well with Macs.

http://eshop.macsales.com/shop/firewire/1394/USB/EliteAL/eSATA_FW800_FW400_USB

http://eshop.macsales.com/shop/SSD/OWC

http://eshop.macsales.com/shop/internal_storage/SSD/Mercury_Electra_3G_Solid_Sta te

Good Luck!

Max out the RAM. Crucial.com or MacSales.com will provide reliable RAM and accurate information on how much is really Max as well as instructions on installing.

Replace the hard disk with an SSD. Or keep the hard disk and replace the DVD using a MacSales.com Data Doubler kit, along with their toolkit for opening an iMac.

The SSD will be the biggest win for the iMac, but maxing RAM helps too.

no way mine as 128 of video card thats super turtle,can i update to 512?