Re: Power supply with 2 sata and 2 molex connectors???
Yes you can and no it does not matter which you use.
I would say though, if you don't want it to blow up, what are the full specs of the system that you are building, and which "450W" PSU are you using?
Primary::: Asus M4A79XTD EVO | AMD Phenom II x3 720BE @ 3.4GHz | 2 x 2GB Corsair 1600MHz | XFX HD5770 + eVGA GTX260 Physx | 500GB Samsung F3 + 520GB Storage | Corsair Obsidian 700D | Win 7 Ultimate x64
Secondary::: Asus P5N32-E SLI Plus | Intel Q6600 | 2 x 1GB Corsair 800MHz | Gigabyte 9800GT | 180GB Caviar Blue + 250GB Storage | Win 7 Ultimate x64