check the code on the CPU.
if it is AX2100DMT3C, then it's a Palomino
if it is AXDA2100DLT3C, then it's a T-Bred A
if it is AXDA2100DUT3C, then it's a T-Bred B
or use WCPUID and see the CPUID,
if it is 660, then it is Palomino
if it is 680, then it is T-Bred A
if it is 681, then it is T-Bred B