I have a Dimension 4600 someone gave me. Replaced the OS with Linux and it runs fine, but the 150 gig disk has bad sectors and is a bit small. Can I replace it with a 3.5 Seagate Barracuda 1TB drive? I think it will fit; what I'm asking is can the motherboard and power supply handle it?
Yes. However I find the SATA ports on the 4600 to be flaky. I use IDE to SATA Bridge and use ATAPI instead of SATA DRIVES. Thats just personal preference based on bad experience.