Tweaknews.net posted a review on the iStarUSA TC-750PD2 750 Watt Computer Power Supply
If the iStar TC-750PD2 were our lumberjacks' buffet, there would definitely be some grumbling. While power is plentiful, it comes at the cost of a very noisy PSU. Another hard knock against the unit is the claimed 20/24 pin compatibility, which does not exist. You get your mashed potatoes, but gravy costs extra..iStarUSA TC-750PD2 750 Watt Computer Power Supply Review