New system with ASUS M4A88TD motherboard won't post

I ordered the parts to put together a new system but I can't get it to post. The motherboard led light comes on, the system powers up, all fans are running, but there is no video display and no beep codes from the motherboard. I first tried using the video from the motherboard (hadn't installed the Radeon 5770 at that point) and there was no video. I installed the video card and tried that, but had the same problem. I have removed the video card, the hard drive, the solid state drive, one of the RAM chips and moved the other RAM chip to a different slot.

It just feels like everything is working except the video is not outputting. This is something like the 10th system I have built for myself over the last 20 years, so I am not new to this, although my last build was about 3 years back. Any advice on how to narrow the problem down?

Motherboard: ASUS M4A88TD-V EVO/USB3 AM3 AMD 880G SATA 6Gb/s USB 3.0 HDMI ATX AMD Motherboard

CPU: AMD Phenom II X2 555 Black Edition Callisto 3.2GHz Socket AM3 80W Dual-Core Desktop Processor - C3 Revision HDZ555WFGMBOX

Memory: Mushkin Enhanced Blackline 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) Desktop Memory Model 996990

SSD: Crucial M4 CT128M4SSD2 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD)

Hard drive: Seagate Barracuda Green ST2000DL003 2TB 5900 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive

Video card: SAPPHIRE 100283-3L Radeon HD 5770 1GB 128-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card

Case: IN WIN BUC Black SECC Steel ATX Mid Tower Computer Case ATX 12V

Power supply: OCZ ModXStream Pro 600W Modular High Performance Power Supply
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More about system asus m4a88td motherboard post
  1. *sigh* I feel like a newb. I just read the trouble shooting guide that outlander referred to in a different post ( ) and realized my mistake. I didn't plug the CPU power in.
  2. im having the same problem also have u found any solution yet i called asus and they couldn't tell me any thing useful
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