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No video display

K

krwesenb

Junior Member
PC was booting up intermittently. I would turn it on, hear the drives spin, power to the disc drive, etc. but the monitor would not come on. I could shut down the PC and usually it would come back on with the video working. One morning I had to turn it on 5 times before the video would display. After this I ran it for 2 days without incident. Until I shut it down again, now when I turn it on there is no video display and turning off/back on doesn't help.

I have already tried a new power supply, mobo, and video card, what else could it be? I didn't think an issue with RAM or the processor could cause this problem. The monitor is definitely good as I hooked it up to an old computer. I've tried both dvi and vga inputs on the monitor thinking it could be a bad cable, still doesn't work. I'm losing it here, any suggestions?
 
Maybe the motherboard is failing edit: I see you tried a new motherboard already. There might be visible symptoms, such as bulging/leaking capacitors, so you could look it over and see if you notice capacitor leakage/bulging or any other obvious signs of trouble.

First thing I would do, is make a plan for backing up any important data as soon as you can, in case you need to abandon ship. Other than that, yeah, you could try just one memory module at a time (if it has more than one). Also, try the system on a different surge supressor or UPS... I've seen one weird situation where the surge supressor had taken a hit and the computer would not run on that surge supressor anymore 😕
 
\Are you sure the other Mobo you tried works? Bad RAM could cause this from what I've heard though I've never run into such problems.
 
I just had this same issue (no display) at work about an hour ago on a Dell. Orange A & B diagnostic lights pointed to RAM issue. I took one ram stick out and it booted...swapped that one out for the second one and it booted fine....put both sticks back in and its fine....just needed to be reseated for some funky reason. If you have more than one stick of RAM, try them one at a time and then in different slots etc. etc. like mechBgon mentioned. If you finally get it to display, run memtest on each module.
 
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