help me, explain the problem below

[Flash_zulfi]

merey system on kartay waqt kabhi kabhi screen per aa jata hay
CMOS Battery Low
Press F1 to run setup

ya

if u want to boot press y, Press N to shut Down


matlab on kartay he setup per jata hay ya doosra option aata hay

[Sahel]

aoa
yar ap ki CMOS battery ya tu khtm hogai hy khrab hy ap wo nikal ker mother board sy change ker lay wo ksi bhi watch wali shop ya computer wali shop sy asani sy mil jay gi 30-50 pak rupee tak ki

[Saqib Lodhi]

CMOS Battery Low means Mainboard ka cell khatam ho gaya hay.... us ko change kerlo yes it is about 30 rupees......