Konetta käynnistäessä tulee virheilmoitukset cmos checksum error ja missing operating system Onko koneesta emo rikki vai onko patteri lopussa?
http://www.pcguide.com/ts/x/sys/booterrGBER08-c.html Diagnosis: The most common cause of checksum errors in CMOS is a battery that is losing power. Viruses can also affect CMOS settings, and motherboard problems can also affect the stored values. Tuon perusteella veikkaan patteria.