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Help: 7870 Tahiti Le and no monitor signal

Last response: in Graphics & Displays
February 11, 2013 3:42:58 AM


I've recently purchased a 7870 tahiti Le to upgrade from an old HD3870 video card.

However, when I connected the card (using the two 6-pin power connectors), there is no output and the monitor receives no signal. The fans are spinning and there are no beeps from the motherboard. I tried using HDMI and DVI to no avail. Additionally, If I remove one of the 6 pin connectors and leave one in, then I can hear the PC booting up and Windows starting. However, the monitor still does not receive a signal. I tried this with each of the 6-pin connectors to see if power was flowing through (I don't have a multimeter to test volts/amps) and it is the same.

If I put my old card back in (Radeon HD3870), then it works fine.

My question is: Is this an issue with my power supply?

Motherboard: Intel DP45SG
CPU: Quad Q9300
PSU: Seasonic S12 500W (the old one, few years old - I believe it was this one: )

a b U Graphics card
a b C Monitor
February 11, 2013 5:04:42 AM

It's possible that you may have a faulty card. Can you try it in another PC?
February 11, 2013 2:16:00 PM

I will try it in another PC tonight