I have a Dell Optiplex GX280 which has a 250 Watt PSU.
It currently has 512 MB RAM, built-in graphics chip and a 40 GB HDD.
I am thinking of upgrading the RAM to 4 GB, the HDD to 250 GB, and adding a GPU to the PCI Express x16 slot which has the bus type 1.0a and it's a half height slot, not to sure what that means.
I understand which RAM and HDD I need to get, but I am not confident enough to get a GPU yet.
Will I need one of these low profile cards?
Plus, those cards don't say if they are for the 120 pin PCI Express interface, or if they are for the 240 pin interface. Am I correct to say that a full length PCI Express interface is 240 pin and a half height version is 120 pin?
Also, if I do go through this upgrade, do I have enough wattage to power all this?