Question Corsair Ddr3 xms3 1600mhz PC won't display turns on fans spin black screen

Feb 27, 2019
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Motherboard Asus P5G41 CM LX
Ram Corsair XMS3 DDR3 1600 8gb (2x4gb)
Cpu Xeon e5450
Boots with Xms2 ddr2 800mhz 4gb (2x2gb)
Black screen with the ddr3. It has 2 ddr3 slots max 4gb per dimm 8gb total 1333mhz O.C /1066/ should downclock my 1600 to 1333 & 2 ddr2 slots 4gb per dimm max 8gb total . Reset cmos left out for a while didn't change tried manual ram timings changing bios settings black screen with the ddr3 . Ddr2 works fine. Any suggestions how to use this ddr3 kit or do I need another kit of ram ?
 

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