:(I have an old tower P4 and was updateing it with software when I left the room for 20 minutes and when I returned it had stopped !!
It starts,fans run usb's work ,dvd drives work but NO Beep to post and nothing on monitor..
checked ram,videocard,motherboard connectors,sata cables and flashed the bios and replaced bios battery..... still nothing and no signs of life ....no sound from HDD but still no beep or bios screen ,in fact no screen ...IDEAS PLEASE TECHIES !!thanks in anticipation..
1) Remove new memory that you added recently ( It might cause the problem as it might not be compatible with your computer )
2) Make sure the memory sticks is placed in properly. Remove and plug in the memory stick again.
3) Change memory stick location. Swap the sides.
4) Test out using a spare memory.
Any more question or need more details just ask. Me and flagstar and other posters will help you out. Good luck
Just done lots off testing..... with ram...without ram ....either slot..both slots...none and different ram... zilch
all hdd/dvd/etc disconnected .... not a peep.... no beep sounds in any configuration.
but MB lights are on and chip fan is spinning as is cooler fan on back and power supply..
next please (skip nearby with wheelbarrow) thanks to Jingda & Flagstar:@