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ASUS AMD Radeon HD7770 DirectCU - red LED, no display

  • Radeon
  • Graphics
Last response: in Graphics & Displays
December 27, 2012 1:25:05 PM

I chose this card because it seemed like the right one for the price and perfomance. I've found a review where the same motherboard and video card were used together, so it must have worked for someone.

When I turn the system on, the HD7770 gives me an ominous red LED2. The fan comes on, but I get no display. Otherwise, the system boots without errors. I'm using the on-board video in the meantime. I've tired forcing the BIOS to use the PCIe video, but it defaults back to Auto regardless. Also in the system are the following: ASUS P8Z77-V LE motherboard, Intel SSD on 6Gbps SATA, LG BluRay burner, TP-LINK WN781ND PCIe wireless, Corsair CX500 PSU 500W, 16Gb G-Skill RAM.

I've tried removing the Wifi card, and there were no changes. Any other ideas?

More about : asus amd radeon hd7770 directcu red led display

December 27, 2012 1:57:09 PM

Make and model of your HD7770 would have been helpful. What's the meaning of the LED2? Probably additional power cord not connected?
December 27, 2012 2:05:30 PM

The make and model are in the subject line. There is no additional power connector, only Crossfire. If I knew the meaning of LED2, I wouldn't be here asking about it ;) 
December 28, 2012 8:58:48 PM

Problem solved! turns out I did not see the power connecter underneath the fan/heatsink cover, when i was expecting it to be at the top of the card.