When I power on it. The console shows
U-Boot 1.1.6 (May 19 2010 - 05:03:13)
Board: EX4200-24F 3.6EPLD: Version 6.1 (0x85)DRAM: Initializing DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80DMA Error: status = 80(1024 MB)
and it does not run anything. What's the matter with it?