I have a problem in my pc. My pc defination is Os-Windows XP Ram-2GB(DDR3) Processor-2.7 Ghz(dual core) Motherbord -G41 Combo Gigabyte HDD- 260 GB Power-supply- 600v Now problem is my pc not open completely. My pc start normally like a normal pc but my pc bypass Bios then restart again or again. i setup my pc but that problem not solved. what i do now...?