Asus Sabertooth z77 / SSD problem

Hi guys,

I just build a new computer and I am having issues. Any help will be greatly appreciate.

1. When booting up. My Crucial SSD (with win 7 64 bit installed would not be recognized). So I have to go into the BIOS system. Under easy mode, the SSD can't not be recognized, but in the Advanced Mode, the SSD is there, after I "saved and reset" in BIOS. Reboot my pc. The SSD read and win7 start, no further issue. However, I have to do that everytime I boot up my pc

2. My mobo is sabertooth z77. It sometimes takes few attempts before the speaker beeps and the mobo boots up(1-3 times).

Not sure what are the issues for the above 2. Please help! Thank you! . My spec is below:

Mobo: Asus sabertooth z77
CPU: Intel Core i5-2500K Sandy Bridge 3.3GHz
SSD: Crucial M4 CT128M4SSD2 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD)
PSU: Coolermaster 600W (my 1000W PSU is RMA'ed, this is the old one, #2 above happen with either the PSU)
VGA: XFX AMD DoubleD 6870 1GB

Thank you!