GA-Z77X-D3H - ALL 4 HDDS SUDDENLY DISEAPPEAR

[Chriszeib]

Its been two months now that i m facing this annoying issue.
I have 1 primary SSD (win7 64) and 4 HDDs (1 of 3TB, 2 of 2TB, and 1 1,5TB) attached to a GA-Z77X-D3H) for photo, music, games, etc.
When  i open my pc everything seems to be Ok. All the hhds are present. While im listening to music, surfing or playing skyrim, a windows
notification sounds, and all 3 hdds disappear, except the ssd and the 3tb (a seagate). The message on my screen saying that windows detected
a hard disk problem and need to back up NOW. When i restart pc, Hdds are present, but not everyone. Sometimes the 1.5TB is missing or the two 2TB are missing. I ve changed cables, sata positions, to no avail. They keep disappearing. Please HELP! 

[cjapeterborough]

This is usually a symptom of an underated or failing power supply.

Swapping out the power supply for a decent 700W plus would be my first choice........

[cjapeterborough]

Oh and to check what PSU rating you need there are plenty of on line tools ....for example

http://support.asus.com/powersupply.aspx

[Chriszeib]

Thanks for the reply, cjapeterborough.
My PSU is 1000w, and i believe there's no problem with it. I have a spare 750w PSU and i ll give it a go.
Thanks again.

[ivan777]

I had same problem on MSI MoBo and I fixed that with disable rapid storage,rapid start... in BIOS

[Chriszeib]

I have already disable the Intel Rapid Technology, but to no avail.
Thanks for the reply