Posts: 1
Member Since: ‎10-22-2012
Message 1 of 3 (2,081 Views)
Accepted Solution

No Signal after installing new graphics card

Hello and thanks in advance for your help!  


We have a 2yr old HP p6540y.  It has an ATI integrated Video Card. When we recently turned it on, we got a 'no signal' message on the monitor and then it would go to sleep.  We have tried several things to fix...listed below, in order, and are still getting the same message.  Please advise!


1) No Signal: DVI, VGA, HDMI.  So we unplugged and restarted, no change.


2) Checked monitor and DVI & VGA cords with another computer: They all work.


3) Installed new Graphics Card: NVIDIA GEForce GT 610.  Still got same 'no signal' message. 


4) We plugged/unplugged all other cards/cords/anything we could and cleaned out.  Then, finally, the monitor turned on! But not for long....


5) After restarting computer after installation of graphics card driver, we got the 'no signal' message again.  We once again, pulled out other cards/plugs and again the monitor/computer came to life.


6) We unistalled the integrated ATI graphic card.  When we go to Display, Advanced Options, it lists our new NVIDIA as graphic/display card.


7) We turned computer off overnight and this morning when we turned on, we once agin got the 'no signal' message.  We unplugged/plugged computer in several times.  Also tried the trick with pulling out cards/plugs and we got nothing.  No Signal.  After doing this several times (about 10), it finally worked again.  


8) We changed sleep settings to: Screensaver=Never; Sleep Mode=Never.  


9)  We restarted again to once again get no signal message.


So...what do we need to do?


Thanks so much!

Posts: 48,100
Member Since: ‎07-13-2010
Message 2 of 3 (2,075 Views)

Re: No Signal after installing new graphics card



Try clearing the CMOS;


Unplug the PC and push the power button to drain any residual power to the motherboard.


Clearing the CMOS settings
CAUTION: Do not change any jumper setting while the computer is on. Damage to the motherboard can result.
This motherboard has a jumper to clear the Real Time Clock (RTC) RAM in CMOS.
In the default (normal) position the jumper is on pins 1-2.
  1. Temporarily set the jumper to pins 2-3.
  2. Wait 5-10 seconds and then return the jumper to pins 1-2.
  3. On the next startup, enter BIOS setup to reset any custom BIOS settings.
Posts: 11,411
Member Since: ‎11-21-2008
Message 3 of 3 (2,069 Views)

Re: No Signal after installing new graphics card

Triusa, welcome to the forum.


I suspect that your problem is caused by the power supply unit (PSU).  Here is a guide to help you troubleshoot the problem:


Also, the existing PSU is 250W.  The GT 610 requires a minimum of 300W. 


Please click "Accept as Solution" if your problem is solved.

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