Built pc, Slow as a turtle, locking up at windows boot. Please help!?

[Patrick Chumley]

I've assembled everything to the best of my knowledge, i've got power to everything and all the fans are going. I've successfully installed Windows 8, but very soon after computer started to lag hard and drag on like a turtle. I hit the PSU switch after it being frozen for a few mintues and now I cannot get past the Slanted window loading screen. The balls just jump around over and over.

Please help?

My specs are below.

PCPartPicker part list / Price breakdown by merchant / Benchmarks
Type Item Price
CPU AMD FX-6300 3.5GHz 6-Core Processor $109.99 @ Newegg
Motherboard MSI 970A-G43 ATX AM3+ Motherboard $59.99 @ Newegg
Memory Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory $89.99 @ Newegg
Storage Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive $58.99 @ NCIX US
Video Card Sapphire Radeon HD 7870 GHz Edition 2GB Video Card $159.99 @ Newegg
Case NZXT Tempest 410 Elite (Black) ATX Mid Tower Case $79.99 @ Newegg
Power Supply Corsair CX 500W 80 PLUS Bronze Certified ATX12V Power Supply $34.99 @ Newegg
Optical Drive LG GH24NS95 DVD/CD Writer $19.99 @ Newegg
Total
Prices include shipping, taxes, and discounts when available. $593.92
Generated by PCPartPicker 2013-09-19 00:56 EDT-0400

Edit: Okay, Windows has loaded finally but its taken about 15 minutes from power on. Edit: No stuck at log-in screen, its just loading forever.

 

[Bavvh]

Not an expert by any means, but is that power supply big enough? Can you link your parts picker list? Is the CPU fan spinning? Lagging after its been going for a few minutes sounds like its overheating somewhere.

 

[johnbl]

Does your system boot into BIOS in a reasonable time?
check the sata mode in BIOS.

since you can actually boot into windows but it takes a long time you may have a crappy cable connection from the drive to the motherboard.

If it is correct I would look the disk subsystem starting at the cables, then if I don't find anything I would move the cable to a second port, if that does not find anything, I would check any secondary SATA controller I have on the motherboard. That fails, then try another drive.