Dead motherboard?

[abarcan7]

Okay so I recently built my system and it's been working fine for 2-3 weeks or so. This morning when I go to restart, it would not. the power supply is powering everything okay, as far as I can tell, but the power led for the motherboard isn't on, even though the fans are still running (those that are hooked to the motherboard) I have a gigabyte z77x-up4th.
Any help is appreciated.

 

[zdbc13]

With the computer off and unplugged, make sure all your connections are seated properly. ie. wiggle the power connectors, sata connectors, and fan connectors. Then try it again. Please supply your complete specs (especially power supply) for us to help you better.

 

[ulysses35]

first thoughts would be a problem with the PSU - which is usually the piece that a lot of people skimp on buying a reputable branded one

 

[abarcan7]

My build is:
PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($169.99 @ Microcenter)
CPU Cooler: Cooler Master Hyper 212 Plus 76.8 CFM Sleeve Bearing CPU Cooler ($24.98 @ Amazon)
Motherboard: Gigabyte GA-Z77X-UP4 TH ATX LGA1155 Motherboard ($180.48 @ NCIX US)
Memory: G.Skill Ares Series 16GB (2 x 8GB) DDR3-1600 Memory ($79.98 @ Outlet PC)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($89.99 @ NCIX US)
Storage: OCZ Agility 3 256GB 2.5" Solid State Disk ($219.99 @ Newegg)
Video Card: MSI GeForce GTX 660 Ti 2GB Video Card ($287.99 @ Microcenter)
Sound Card: Creative Labs Recon3D Fatal1ty Professional 24-bit 96 KHz Sound Card ($129.99 @ Dell Small Business)
Power Supply: Corsair Professional 750W 80 PLUS Silver Certified ATX12V / EPS12V Power Supply ($143.99 @ Best Buy)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($22.98 @ Newegg)
Monitor: Asus PB278Q 27.0" Monitor ($678.00 @ Amazon)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($89.98 @ Outlet PC)
Total: $2418.33
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-01-12 17:07 EST-0500)

Though it kinda fixed itself. Tried it again and got a boot error this time (that's all it said and gave me options to go to bios or reboot with default bios settings), and it's working so far. Uhm I'll update if something else goes bonkers. Thanks for your time though. Much appreciate it.

 

[abarcan7]

Best answer selected by abarcan7.