ASRock Z77 Extreme4-M unable to start with dual channel
I have i5-2500K on ASRock Z77 Extreme4-M motherboard with Dominator GT CMT16GX3M4X2133C9. When i try to start with Dominator GT CMT16GX3M4X2133C9 in dual channel (slot : DDR3_A1, DDR3_A2, DDR3_B1, DDR3_B2), the motherboard send a black screen. The only way to start is put Dominator GT CMT16GX3M4X2133C9 in single channel (slot : DDR3_A1, DDR3_A2). If I try Dominator GT CMT16GX3M4X2133C9 in dual channel (slot : DDR3_A1, DDR3_B1) same error, send a black screen. Did the motherboard physical dual channel problem (need motherboard RMA) ?
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I try with old KVR1333D3S8N9K3/6G for LGA-1366 triple channel, in dual channel configuration (slot : DDR3_A1, DDR3_B1) same error, send a black screen. If I try KVR1333D3S8N9K3/6G in single channel (slot : DDR3_A1, DDR3_A2), the motherboard start and display normal ouput.
Sounds like a motherboard problem since two different rams are giving the same error. Try to go to Default Settings in BIOS, as a last resort option. If that doesn't help, I think you will need to RMA that motherboard.
Thank for support. After reloading Default Settings in BIOS, the error is still here. Same as you, think I need to RMA.