qde4

I read this topic https://forums.anandtech.com/threads/what-controls-turbo-core-in-xeons.2496647/page-98 And people on Xeons can mod their bioses to change multipliers to maximum on 4 cores. My problem is that i have QDE4 engineering sample and it is 4770K. But my motherboard Gigabyte B85 D3H...