Just built my first new PC and I'm having trouble with getting the video card to work.
The spec is the following:
Intel i5 3450
Sapphire Radeon 7870 2gb
Kingston Value Ram
Thermaltake 550w PSU
I'm using my HDTV as a monitor
Everything seems to be working fine. All the fans are spinning, including the 7870's fans. Both the PCIE 6pin connectors are firmly secured. The card itself is firmly seated, as it has to be otherwise it wouldn't screw itself in the back of the case.
Connecting to the onboard graphics via HDMI works fine, however when I try booting the system with the HDMI cable in the 7870, I don't get any signal, it doesnt even show BIOs. Nothing whatsoever.
I've updated my BIOs, installed all the drivers on the motherboard from the CD that came with it.
In the device manager, under display adapters, it says 'Standard VGA graphics adapter'. I have no idea if this is refering to the onboard graphics card or the 7870.
I've tried downloading the latest ATI drivers (12.8) and I've made sure they were for the 64bit of Windows 7 which I am running. It installs, but nothing seems to happen after. When it finishes, it says in the install box that warnings have occured, then links me to Internet Explorer but doesn't specify any warnings, it just details what's been installed.
Currently, the version of Windows 7 I'm running doesn't have a product key as I have yet to purchase a copy of Windows, but I will be doing so in a couple of days. I've got all the latest updates for Windows.
I've also tried going into the BIOs, disabling the onboard graphics and making sure it runs the display off PEG (PCIE). That didn't work so I had to reset the BIOs.
I've literally ran out of ideas and I'm stumped as to what to do.
Thanks in advance for any help :)