for sale 3900x and Crosshair VII Impact you can have them separate for $350 each or the pair for $650 US shipping only paypal friends and family CPU and board come with original box and accessories board is covered in liquid electrical tape and ready for cold CPU has no CB or CBB at 1400 fclk
results can be found here
https://hwbot.org/submission/4448509_shadyreaper_cinebench___r15_ryzen_9_3900x_4286_cb