There were no beeps without memory, or without memory and CPU. However, if I reseted CMOS, next boot was successful (but only until clean shutdown from OS or power loss). Changed chassis to SC5650UP - system boots without problems. Was there something "special" in power supply, or in case itself? HiPro PSU specs in SC5650UP are not impressive - for example, +5Vsb 2.5A instead of recommended "at least 3A".
Corsair VX450 specs are: +3.3V 20A, +5V 20A, +12V 33A, -12V 0.8A, +5Vsb 2.5A, ATX12V v2.2
In my case problem was solved by getting certified chassis, but it would be interesting to know, what caused it.