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Started by blokeybloke | | 8 answers
Please help - no vga monitor signal, yet graphics card appears in device manager
Any help would be great.

I can't get a signal on my vga monitor.
I've added a HD 7850 to my desktop along with a 500w psu to run it.
The pc has a8-5500 apu with hd 7560d onboard.

I've plugged the monitor into the correct dvi slot with an adapter. The new card appears in device manager, working properly. (I've updated the drivers for it.)

I get the 3 beeps when I try to start it. The monitor only works in the old vga socket.

Again, any help would be much appreciated.
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June 13, 2014 11:07:22 AM

Duly noted. Thanks for your help.

Best solution chosen by blokeybloke

a c 118 U Graphics card
a b C Monitor
June 13, 2014 11:04:51 AM

Although brand new, it is a low quality power supply. You risk breaking all your pc hardware connected to that or even start a fire. Ditch it immediately. You should never cheap out on power supply. It is singly the most important part in your PC since it is supplying power from the wall.
Here an analogy, why get a cheap battery in a car that easily fails then a better quality battery.

Arianet 450W power supply aren't good for gaming pcs either. They for office pcs that doens't use discrete graphic card really.
June 13, 2014 11:02:02 AM

Ouch. It's brand new. I bought it to run this card.
I've an older 450W. Am I pushing my luck by trying it out?
(says Arianet on the side of the unit)
a c 118 U Graphics card
a b C Monitor
June 13, 2014 10:59:29 AM

Replace your power supply. It doesn't actually supply 500W or even at least 375W.
Get a decent brand like Antec, Corsair( AX or HX), Seasonic or XFX.
550W is enough for your build.
June 13, 2014 10:42:12 AM

Sumvision power x3 500W psu
R7850 double dissipation
Ta.
a c 118 U Graphics card
a b C Monitor
June 13, 2014 10:38:28 AM

What 500W psu do you have?
What 7850 do you have?
June 13, 2014 10:21:32 AM

Hi,
Thanks for your reply.
I have tried this. When I plug the monitor into the graphics card socket (using a dvi/vga connector) I get no signal and 3 beeps.
The device manager shows the new card as working properly, so I really don't understand where the fault is.
a c 118 U Graphics card
a b C Monitor
June 13, 2014 10:12:42 AM

If you use any of the motherboard outputs for a monitor, the display outputs on the HD7850 is disabled. Unplug any cables to the motherboard display outputs and just use the outputs on the graphic card.

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