Asrock K8Upgrade-NF3 s754 0.8v & Cool 'n' Quiet
and all Asrock K8Upgrade-*** s754 i think , see manual

ok, thanks for answer, will i be able to undervolt a sempron 2500+ s754 if i have the right motherboard? Will i be able to boot?

ok, but is there a difference in power consumption between Sempron 2200+ (1500 Mhz) socket A and Sempron 2500+ (1400 Mhz) socket 754? how much?

whats the best to have the lowest temperature:
Sempron 2200+ (1500 Mhz) socket A
Sempron 2500+ (1400 Mhz) socket 754
2500+ Mobile Barton (1830Mhz) socket A

Hi all, I want to know if a sempron can be undervolt on a undervoltable motherboards socket A, I intend to buy a sempron 2200+ (socket A)