hey maybe someone here can help me with my boot problem

Q6600
ip35 pro
4gig crucial ballastix tracer
ocz gamexstream 700w
(3870)

3870's is being shipped atm so it's in parenthesis

so after putting together everything, my computer is not booting completely
when i turn my computer on, it boots up and makes a sound like it's reading hdd but after a few seconds, it instantly reboots and same thing happens over and over again

according to POST, it's displaying 8.7. and apparently it means
Check the CPU Voltage

did i install something wrong? i mean why should i check the cpu voltage when i have yet to touch anything??
another thing is that untill my 3870 arrives, i have no means of display so i can't check up my CMOS setting

what should i do?
thanks