T-bird is Athlon core, Duron was either a spitfire or a morgan, cant remember which spcifically, never dealt with durons. The processor doesnt tell us what your motherboard is. You will need to open the side of your case and look for, more than likely, some bold white print that would say what the motherboard model is, it may even tell you on post, when the computer boots. If it is a pre-built computer, give the manufactoer and model number for easier searching.
Phenom II X 1055T @3.64Ghz 1.425V NB @ 2800Mhz HTT @ 2800Mhz Gigabyte 890FXA-UD5 8GB Crucial Ballistix @ 1866 8-8-8-24-33-1T AMD Radeon HD6950 2GB GDDR5 shaders @1536 OC to 840/1300