In other threads, I have read recommendations suggesting trading working computer power supplies (MPSUs) and/or CPU fans for non-working motherboards (MBs) or memory cards. In none of those posts did it say what a fair trade would be. In other words, how many working MPSUs should I offer in exchange for non-working MBs (assuming, of course, the motherboard hasn't been degraded). Or, how many working CPU fans for non-working memory cards?

I'm not looking for an exact exchange rate--just a ballpark will suffice (e.g., five power supplies for one motherboard).



Anyone have any horsetrading experience in this area?