I replaced the motherboard on my e machine T5246 with the same board [refurbished], I'm using it now, it works, but the fan keeps going on full blast, I go to steam for games they run fine, it takes 2 hours or more just to download updates, VLC player 720 movies play fine, its just the in between programs or websites, Its like dial up! I checked all of the BIOS settings, no luck, any help? Has this happened to anyone else?