Asus P8Z68-Pro/Gen 3 startup problem

[Slade2254]

Whilst upgrading my system, I connected a hard drive (SATA 3G/s) without thinking to shutdown the system. There was an immediate power cut. Now when I try to startup I have a quick flash from the fan leds, the buttons and leds on the motherboard light up and that is all. Upgrades to system= psu 600w>750w, added HDD.
Any advice would be much appreciated.

 

[Calvin7]

Damage caused by power surges, from improper installation, improper connection is not covered under warranty. It may be cheaper to replace the motherboard rather than sending it in for repairs.

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