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No POST, nothing showing on monitor

P

pudicus

Junior Member
The computer turns on, but nothing else happens. Fans and mobo LEDs run fine, but nothing is displayed on the monitor and there is no beep. I've double checked the F_Panel connections and resetted the CMOS, checked vga/RAM seatings and power connections.

Gigabyte GA-P55-USB3
I7-860
Corsair XMS3 2x2GB PC10666
eVGA 9800GT
OCZ OCZ700GXSSLI 700Watts
VelociRaptor 74GB
 
It could be a lot of things...
Was it running fine before?
If so what led up to this?
Is it a new build that has never POSTed before?
Is there a system speaker? Check to make sure.
It could be beeping with no speaker.

Common problems for these symptoms ( esp with no speaker ):
Incompatible CPU installed in the MB.
Defective Video Card.
Blown or bulging capacitors on the motherboard.
Motherboard is 1/2 dead only allowing the Fans etc to power up but nothing else.
 
On my old computer, my HDD died (clicking of death) and I replaced it. Then the computer refused to start-I would push the power button, the power supply (fan) would run for half a second and then shut off.

The hardware is all compatible and there is indeed a speaker connection, so there should be one. I tried removing the RAM/video card/HDD and just left the motherboard only with the CPU and heatsink/fan. Same exact outcome.

I think this narrows it down to either of the two being the problem-if this is a legitimate way of troubleshooting. I bought those two brand new, though so I'm not sure if they could be.
 
Not to thread-jack, but I am having a similar issue.

Elitegroup A780GM-A. Been running fine for a few months (6?) since bought new and installed, but yesterday the monitor just showed "no signal'.

I tried using the on-board video (removed the second card installed), switched out the monitor to a known-good unit, disconnected USB peripherals, and repeatedly hard-booted.

The box powers up, fans all spin, no beeps no POST ... no video output at all. Good point above about a speaker; I'll check but it seems like mobos beep without speakers these days don't they?
 
azkiwi said:
Not to thread-jack, but I am having a similar issue.

Elitegroup A780GM-A. Been running fine for a few months (6?) since bought new and installed, but yesterday the monitor just showed "no signal'.

I tried using the on-board video (removed the second card installed), switched out the monitor to a known-good unit, disconnected USB peripherals, and repeatedly hard-booted.

The box powers up, fans all spin, no beeps no POST ... no video output at all. Good point above about a speaker; I'll check but it seems like mobos beep without speakers these days don't they?
Click to expand...

Mostly, yes they do come with their own speaker and way of beeping. I would just double check especially on an ECS/Elitegroup board. Those are just about the cheapest boards you can buy and not exactly the top notch.
 
Plugged a spkr in - still no beeps. I know ECS is well, ECS but this box was just for my kids, and mostly surfing, so not exactly subject to demanding use. Unless anyone has a bright idea how to troubleshoot without a display, I guess I'll contact ECS support and duke it out with warranty.
 
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