New computer; powers on, no display

[kiyarose]

Built a new computer. Went to install Windows 7. It powered on fine, got into BIOS, switched to boot into optical drive. It started loading windows and then stopped. Now there's no signal to the TV and no lights on the keyboard. Everything else powers on, but doesn't boot. Lights, fans, everything. No display. What could be the cause?
I read the little guide. Everything seems to be plugged in properly - and since it worked before, something seems like it could have shorted or given out but I don't know what.

PNY ANARCHY 8GB KIT (2X4GB) DDR3 1600MHZ

Gigabyte GA-970A-DS3P AM3+ ATX MB

Thermaltake Socket AM2, AM2+, AM3 CPU Cooler Fan

AMD FX-8300 Processor - 8-core, 3.3GHz, Soket AM3+

Seagate 1TB Serial ATA HD 7200/64MB/SATA-6G

Corsair CX430 Modular 430-watt Power Supply

Zotac GeForce GTX 750 TI

The optical drive is one we just unplugged from a previous computer. Dell. Uses SATA connectors.

 

[thehutti]

At first I would try to clear CMOS by removing the BIOS-Battery or by closing a CLR_CMOS Jumper on your board if it has one (Just pulling the Battery is easier in most cases). If that doesn't help, try bridging the power-on pins in the 24PIN ATX-Plug of your PSU and see if the PSU powers up (You find lot of tutorials to do it with a paperclip in different Watercooling tutorials, because they use it to power the Pumps seperately without the mainboard). If your PSU is ok (You can check it with a 12V case fan or with a multimeter on the 5V or 12V lines agains one of the GND lines if you want, but a spinning PSU-Fan is a good sign too). Next Step is to check the RAM-Modules. Start with just one RAM module and if there is no reaction change it for the other module. Start everything without the GPU, the PC will complain with beeping, but if you just want to get a any reaction from your pc, beeps are just as good.