No Network Adapters in Device Manager


Jan 28, 2012

I just put together this computer yesterday:
i5 2500k
ASRock Extreme 4 mobo Crutial 128GB SSD 2x G.SKILL Ripjaws Series 8GB (2 x 4GB)
AMD Radeon 7970

Finished Installing Windows 7 Pro and all the drivers for the mother board and video card.
But I can't connect to the internet. I looked at my device manager and there is no tab for Network adapters. The only thing out of place is a tab for 'Other devices' that when expanded shows two devices listed as 'Universal Serial Bus (USB) Controllers' with a yellow exclamation warning sign. I reinserted the CD which came with my motherboard and notice that under drivers there is nothing listed regarding the Broadcom Network Adapter drivers that you can download off ASRock's website. I downloaded the Broadcom drivers on my old computer and transferred them with a USB to my new computer but don't know what to do with them since there's not network adapter in my device manager.
P.S. I also tried installing a Dynex DX-PCIGB PCI network adapter I had been using on a diff computer but still nothing in my device manager.
Please help, I feel like I'm missing something hugely obvious.