Hi, guys, I am having an issue with my system and could use some help. Here is my issue when I have all 4 sticks of ram in the system will not boot, no beeps just power up fans but no montior signal. So then I took all 4 sticks of ram off theMB I get beeps then I put 1 stick in slot number 1 I get a beep boots to bios mind you I have not install a HD CD drives I try all 4 sticks of ram in slot 1 and all 4 boots up. when I put 2 sticks of ram in slots 1 and 2 the system boots up. I then put 3 sticks of ram and I get no boots I try each stick in slot 3 I try each stick slots 4 no boot. I also try slots 1 and 3 for dual boot and no boot. I switch PSU that I know is working and had all 4 slots fill with ram and no boots. I also notice that when I do boot having ram in slot 1 and 2 and I power the system up the PSU starts then turn off for a sec then starts and I get boot up. I think the MB is bad anyone thinks I am right or what else should i do?

ASUS Z87-K LGA 1150 Intel Z87 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS
CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ8GX3M2A1600C9
Intel Core i5-4670K Haswell Quad-Core 3.4 GHz LGA 1150 84W BX80646I54670K Desktop Processor Intel HD Graphics

Seasonic FOCUS Plus Series SSR-750PX 750W 80+ Platinum ATX12V & EPS12V Full Modular 120mm FDB Fan 10 Years Warranty Compact 140 mm Size Power Supply