My HP compaq desktop turns on but my monitor says "no signal" Help!!

digiman2372

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My HP compaq desktop turns on but my monitor says "no signal" Help!!

Hello everyone! so I am currently in Europe and I had my desktop computer mailed to me from the USA. When I try to boot it up, nothing is displayed on the monitor besides "no signal". I thought maybe the HDMI cable was loose but it was not.I thought that maybe the graphics card was not seated well but it was seated in all the way. I then tried using a VGA cable to see if I could see anything on the monitor but still no luck. I tried reseating the RAM and all the plugs/connections and no luck still. Then I tried to to reset the motherboard CMOS by taking out the battery and still no luck. I connected my laptop to my monitor so I know the monitor is working.

Now, based on all the troubleshoot videos I have seen, there are three things that can be the problem. I will order them from least likely to most likely, here we go.

1. I still have not tried booting the desktop without the graphics card installed, but somthing tells me that this is not the issue.

2. there is hardware damage due to the mistreatment of my desktop on its trip from the USA to Europe.

3. the desktop is not getting enough power to boot, only enough to turn the fans on, etc.

I say this because I am using a European to American power adapter. the adapter I am using is a "type C" adapter, and
on it, it has written "10A max 250V~"

my desktop is an HP compaq from 2015 and on the power supply it reads "AC input 100-240 V-/4 A,50-60 Hz" then "DC output
shall not exceed 240 W"

and on the actual power cord to the power suppy reads "10A 125V"

I bought a new European powercord but it reads " 10A 250V" can I still use it?

What do you guys think is going on?

*one important thing I should note is that my desktop seems to take a little longer to start up than usual and it is working harder and louder than ususal but no bleeping noises or anything coming form it*
 

My Computer My Computer

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64
Computer type
Laptop
Computer Manufacturer/Model Number
Hp pavillion dv6 laptop(stock)
OS
64
It sounds like you're connecting an external monitor to the laptop. Is that the case? If so, what is the monitor? Is there a button on it to set the connection?
 

My Computer My Computer

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Windows 7 Pro SP1 64 bit8 GB
Computer type
Laptop
Computer Manufacturer/Model Number
Dell M6500 Precision Work Station
OS
Windows 7 Pro SP1 64 bit
Memory
8 GB
Screen Resolution
1920x
Internet Speed
30 Mbps
Antivirus
Norton Security
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so i took the computer to a repair shop and they reinstalled windows and now it works! thank you for your reply!
 

My Computer My Computer

At a glance

64
Computer type
Laptop
Computer Manufacturer/Model Number
Hp pavillion dv6 laptop(stock)
OS
64
I don't know if we would have had to go that far to fix it but, I'm glad your problem is resolved.
 

My Computer My Computer

At a glance

Windows 7 Pro SP1 64 bit8 GB
Computer type
Laptop
Computer Manufacturer/Model Number
Dell M6500 Precision Work Station
OS
Windows 7 Pro SP1 64 bit
Memory
8 GB
Screen Resolution
1920x
Internet Speed
30 Mbps
Antivirus
Norton Security
Browser
IE 11
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