I don't understand your request - If you're saying that you have a SATA hard drive from your PC (probably a 3.5" drive), then it won't fit into a 2.5" drive bay on the PS3 - there are adapters to go from 2.5" to 3.5", but it still won't help much if there is no space in the PlayStation to hold it...
If your trying to fit the 2.5" HDD from your PS3 into your PC, and it's SATA, then it should plug straight in if you have SATA ports on your motherboard and SATA power connectors from your power supply - if you don't have these ports, the you can either get an external 2.5" case which will connect via USB, or you can buy an add-on SATA PCI card to enable you PC with SATA ports...