Scroll down to and double-click the "Network adapters" header in the Device Manager list. How to Optimize Bandwidth on a Broadcom NetXtreme Gigabit The Receive Buffers and Transmit Buffers values set buffers sizes to maximum. The Flow Control setting allows the Broadcom Gigabit Ethernet NetXtreme Gigabit adapter to use its hardware controller versus relying on Windows Broadcom Gigabit Ethernet manage data flow. Enabling the Jumbo Frame allows the card to send and receive much larger blocks of data and reduces[…]