P4C800-E help plz

[Haze]

i recently upgraded my pc and my flat m8 had all my old bits off me, all hes done is just transfer them to a new case, everything else is the same

but now when it boots it come up with an error saying

CMOS settings wrong
CMOS date/time not set
Chassis Intruded
Fatal error... system halted

:S

i carnt get into the bios because that comes up before it even gets there

ive been lookin for a hard bios reset on the motherboard but carn find any thing

any sugestions please

 

[Haze]

thanks

ive tried that but but no joy still,, any other ideas ?

 

[Haze]

yeah tried the battery