Helllp!!! Operating system not found + CDBOOT: memory overflow error

I’m trying to enter into my old notebook (compaq presario amd k6) and it keeps giving me error:

1st error —-> Operating system not found ….
I then put de winxp cdrom into it, to make a brand new instalation of windows but then the s.o.b.tells me that:

CDBOOT: memory overflow error

It’s driving me crazy

Please… please HELLLLLLLLLLLLP!