BIKeINSTEIN said:Totally not worth it.
An 'E5300+Gigabyte G31' combo will cost you 5.5K approx and will insult/embarass/molest/... the opty185+whatever mobo you have for roughly half the max power required by the latter.
If you OC the E5300 to even 3Ghz (most take it higher with good cooler,psu,mobo), it will murder/keel the latter.![]()
If you still want a used X2 4200+, please do check this>
http://www.techenclave.com/members-market/socket-939-chips-x2-single-core-138673.html