I've got some issues with a new system. It's rebooting constantly.

The system consists of a:

brand new:

Gigabyte GA-B75M-D3V with F9 BIOS (latest)
Intel Core i5-3470 Ivy Bridge
2x 8GB G.SKILL Ripjaws 1600MHz memory (mem-tested x-86)

coming from a stable system:

Creative Soundcard X-FI Titanium
Asus Radeon HD4850
OCZ Vertex 3 120G SSD Sata 3
Hard disk 1TB Sata 2
ASUS Blu-ray Drive 
PSU 400w

Connected peripherals :

Toshiba tv (displayport on dvi of MB or HD4850)
Wired mouse, wireless keyboard (logitech)
Bluetooth usb key Azio

main problem : it's not possible to read the errors from the MB. nothing on the manual neither on internet.

At the beginning, I received a MB with graphic problems and the problem of rebooting. I RMA'd it. The new one doesn't have any graphic problems. but it's still constantly rebooting.

I removed everything except the HD, the sound-card, the blu-ray drive and the wireless keyboard. It's still unexpectdly rebooting.

I'm running a test with just the motherboard and the HD. I will update this text after the test.

I've got some questions :

• Somebody have an idea of a test?

• The PSU could cause that problem? I used it a lot of years with the stable system.

Update 1: BTW, if anyone has the same problem, the manual won't say it but you'll need to reset the bios between two tests (the screwdriver on the two pins) if you suspect a problem of compatibility .