A friend has given me his computer to look at as he is getting no video display, just a message on screen saying 'no input'. I have checked the leads and tried another monitor on his computer but get the similar message 'no connection'. He says the problem stems from when he upgraded the memory chip from 512Mb to 1 GB. Thinking the new chip was faulty, he replaced the old memory but the display was still blank. Could the new memory have damaged the motherboard in some way or could my friend have done so himself by been careless? My friend has asked me if I could replace the motherboard. I have fitted a motherboard in my own computer before but I am reluctant to do so in his before I have ruled out other possibilities, for example could the processor be caput also?
There are no beeps at all when the machine starts. There is only one memory stick in the machine. I have even tried staring the machine with the memory removed. There were still no beeps and no display. I don't believe my friend did take any ESD precauitions. For the drives I presume you mean disconnect the DVD drives and leave the hard disc connected?
If there are no beeps at all with no memory inserted, motherboard or CPU are suspect/broken (though it is worth checking the system speaker on another PC, just in case). Yes, I meant all but one drive.
Thanks for those suggestions. I have already tried resetting the BIOS and refitting the graphics card with no luck. I will try checking the speaker and starting with one drive connected when I get chance to open the case. I have to pop out just now.
Having had chance to check the computer again, I've had no luck. Starting with one drive connected made no difference. Also I 've been unable to find an internal speaker connected at all. I was of the opinion that this should be found in the front panel, but I found no sign of one there. Where elso could a speaker be found ? There is a connector on the motherboard marked speaker but nothing connected there. Any help?