my think pad is Pentium III and it only shows blank screen with blinking curser.after few seconds it shows the message pxe-e61:media test faliur, check cable repeatedly
Your laptop is trying to boot off a network, no network is being found, so it's telling you to check the network cable. If it's not a networked computer, check the boot order in the BIOS, also check to see if the hard drive is being recognized - it may have died.