GTS 250 not working

[yellowputty]

Hello all,

Installed GTS 250 earlier, had problems connecting it to a monitor via DVI/VGA. Finally got it to output using HDMI. Now I've moved it to another house (same computer), and it's not working at all. TV says no signal, and the HDD light on the front is always on. I have reason to believe there is enough power, and the power cable is in. I've tried both the ports at the back, but still nothing.

Any ideas?

Thanks in advance.

 

[yellowputty]

I just took a 1GB stick out (I have 3GB in total), and now it works. This is weird, as I did get it to work previously with the full 3GB. What is going on?

 

[yellowputty]

I've just moved my computer again (disconnecting the HDMI cable) and now it's not working again. I'm so confused.

 

[Scougar]

Bad connection somewhere.