OCZ Gold 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Voltage Desktop Memory Model OCZ3G1600LV6GK - Retail Intel Core i7 920 Nehalem 2.66GHz LGA 1366 130W Quad-Core Processor Model BX80601920 - Retail ASUS P6T LGA 1366 Intel X58 ATX Intel Motherboard - Retail CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 ... - Retail Western Digital Caviar Green WD5000AADS 500GB SATA 3.0Gb/s 3.5" Hard Drive - OEM XFX HD-487A-ZHFC Radeon HD 4870 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail Old IDE DVD drive
And I'm getting nothing. System sounds like it powers on, fans are going, nothing on the monitor. Only 3 of the red leds on the back of the Radeon are on (from the outside edge of the card: on, off, on, on). XFX's website has no help, and with the new baby, I'm too tired to figure this out tonight.
Is the video card DOA or am I missing something else?
Verify that power is connected to all components. Some newer video cards have multiple power connectors going to the card itself, so double check that first. Also verify that the motherboard has power connected to both the 24-pin and 4/8 pin connectors.
If all else fails, start from scratch. Disconnect everything from your motherboard and PSU except for the CPU, one stick of RAM, and your video card. Try all the monitor connections on the video card, too.
(And just for fun, make sure your monitor is set to the input you're actually using!)
Sounds like bad RAM to me. Start with what PrincessNybo suggested. Yanking everything from a mal-functioning computer has always been my way to start troubleshooting.
Bad RAM will usually result in some kind of beep code, at least in my experience. I'd say you're right in suspecting the video card, and if you have another one lying around (even in another system) it might be worth it to swap them to see how things work with a known good card.
