If the system is still functional, you can find the actual model name and specifications without opening the case using the tool: Intel desktop board - Linus Tech Tips
Most users assume the series is Windows 10 dead. False. With the right exclusive drivers, the G41 variant works: intel desktop board 21 b6 e1 e2 specification exclusive
The Intel Desktop Board D21-B6-E1/E2! That's a very specific and interesting request. If the system is still functional, you can
The DG41RQ with 21 B6 E1 E2 marking has a hidden limitation: it will not boot with 2Rx8 (double rank x8) DDR3 modules beyond 2GB per stick. Use 1Rx8 or low-density 2GB sticks only. If the system is still functional
LGA 1155 (for 2nd/3rd Gen Core i3/i5/i7) or LGA 1150. Memory: DDR3 SDRAM slots.