The (often seen with the suffix "Er") refers to an older generation of Intel motherboards, typically associated with the LGA 1155 socket and Intel 2nd Generation (Sandy Bridge) processors like the Intel Core i7-2600 . Post Summary: Troubleshooting and Specifications
The string 21 B6 E1 E2 Er resembles:
for dedicated graphics cards and additional PCIe x1 or legacy PCI slots. I/O Connectivity : Integrated Gigabit Ethernet (10/100/1000 Mbps) and a mix of USB 2.0 and sometimes USB 3.0 ports. Video Output VGA and DVI-D Intel Desktop Board 21 B6 E1 E2 Er
"It’s trying to hand off to the BIOS," Elias said. "But something is interrupting the handshaking. 21 B6 is the memory controller initialization. It starts, then crashes." The (often seen with the suffix "Er") refers