DFI boards absolutely needing a 24pin PSU is a myth that quite commonly circulates dfi-street...while I agree that it would be ideal to use the proper ATX2.0 compliant PSUs, as long as your 20 pin PSU isn't a POS it will work fine
FUGGER has used and benchmarked with 20 pin units on DFI boards and Nubius uses one of the supposedly "bad" thermaltake PSUs with a 20 pin connection and has for a few months under fairly strenuous overclocking conditions with no problems
People at DFI street also claim you have to use all four connections including the FDD molex connection in order for your board to be "stable"...quite simply put there are many overexagerated myths floating around that lead people to believe their boards will catch fire unless they use exact specifications
FUGGER has used and benchmarked with 20 pin units on DFI boards and Nubius uses one of the supposedly "bad" thermaltake PSUs with a 20 pin connection and has for a few months under fairly strenuous overclocking conditions with no problems
People at DFI street also claim you have to use all four connections including the FDD molex connection in order for your board to be "stable"...quite simply put there are many overexagerated myths floating around that lead people to believe their boards will catch fire unless they use exact specifications