The PC Power & Cooling Silencer 750 Crossfire Edition unit looks impressive and is the ideal power supply for anyone looking at using one or even two of the new Radeon HD 2900XT graphics cards. Our first sample of the Silencer 750 Crossfire Edition power supply was received about 4 weeks ago now. The first sample was actually not a production version of the Silencer 750 Crossfire Edition and featured a flaky paint job. Before completing the review we requested a final production version to take a look at. The internals were all the same as stated by PC Power & Cooling but the paint job was much improved and is now far more scratch resistant.