Well...first off, any of the APU's with
- A three digit number (i.e. 760K, 670K, 740, etc) means the an APU with the GPU portion of the chip disabled.
- "K" means it has a unlocked multiplier.
From the above reasons, the FX-670K that you have does not have a functioning GPU.
From the news around the web, HP is the only ones who has possesion to the FX-670K's. Even so, it can be used on "regular" motherboards.
It was kind of why the original HP computer that you bought came with a lower-end descrete graphics card...Radeon R7-240.
The HP computer that you bought should have been a "HP Pavilion 500" series, such as:
Phenom II X6 1090T @ 4.1GHz FX-8350 @ 4.8GHz // ASUS Crosshair V Formula 990FX // Sapphire Radeon HD Dual-X 7970 @ 1150/1500 // Thermaltake Frio w/ push-pull (using Antec Formula 7 Nano-Diamond + Cooler Master JetFlo fans) // 8GB (2 X 4GB) G.Skill RipJawsX 2133MHz // Corsair TX850 850W // Corsair Force GT 120GB SSD (OS) // Kingston V200+ 120GB SSD // WD Caviar Black 1TB // Windows 7 Ult x64