ab9 quad gt post code error

[scotty89]

Hi everyone..

i using abit ab9 guad with e6600 processor
with 4gb kvr ram
nvidia 8500 gc..
cm 500w extreme power psu
and 250gb seagate sata hd..

my problem is..
when i can boot up normally until my window 7..
the post code in the motherboard show is FF..
after i use my desktop about 1 to 2 minute..
the post code change to CC error..
then my desktop become hanging..
the mouse cursor still can move around..but my system is hanging..
cant open any thing..
it keep reboot my system..
the post code will from FF change to CC..
can i noe what is the problem??

tq for help..
sorry for the broken english..

[BUFF]

check positions of clearCMOS jumper & switch & any debris that may be shorting them