[carloss1]

Hi Everyone!

I'm hoping you guys can help me out here. I recently built an HTPC with the following specs:

Motherboard - ASRock N68S3-UCC
Processor - AMD Sempron 140
RAM - G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3
Video Card - HIS Radeon HD 5450 512MB DDR3
TV Tuner - Leadtek WinFast DTV1000S PCI Digital HD TV Tuner card
CD/DVD Drive - Lite-On IHAS124-04 Internal DVD Writer
Hard Drive - Samsung SATA 500GB
PSU - Silverstone ST50F-ES 500W
Case - Silverstone LC16B-MR

I've managed to install windows 7 on it already, and the computer is connected to my TV via HDMI, but my problem is starting the machine up. If i press the power button, the computer powers on, but it doesn't send a signal to my TV and it doesn't boot up. If i hold the power button down to shut it off, then press the power button again to turn it on, a signal is sent to the TV and it boots up with no problem and the computer functions normally.

I was going to upgrade the processor this weekend, but I'd like to sort this problem out first because it can't be healthy shutting it off, then turning it on immediately again just to get it to boot.

Does anyone have any ideas on how to fix this or what the problem is?

Thanks in advance for your help guys.