Computer won't boot continus tone

[sirjayjayec]

Hello, i have been having a problem with my pc ever since i installed my new heat sink and fan which i replaced as the original was not working properly ever since then the pc would make a continus tone when ever i try to turn it on i have tried everything
parts
cpu: amd 1090t
gpu: gtx 550 ti
ram: 4*4gb 1333mhz mushkin silverline
mobo :ga-990xa-ud3
pcu: corsair 500cx

 

[Wolfshadw]

Did you remember to reconnect the PCI-E power cable to the graphics card?

-Wolf sends

 

[sirjayjayec]

yep :/

 

[Flareside]

Does the tone start as soon as you hit the power button? Or does it seem to wait a moment before sounding? Do you get any graphical displays such as post or Memcheck?

Flare

 

[sirjayjayec]

the tone starts a few seconds after i turn it on but it sort of stutters before becoming a constant tone, there is no visuals also i checked the voltages on the power supply and there all within the acceptable limits.

 

[Flareside]

I recomend reseating your heatsink and fan as well as double check the connection for the fan as the system might not be starting because it does not detect the fan being connected.

Flare

 

[sirjayjayec]

fan connection fine pretty sure it's the mobo at this point