EES is Gigabyte's Energy Saver. Enable USB Keyboard and USB Mouse from BIOS if you use them. Otherwise Turn on Energy Saver if you ever have turned them off from BIOS and Windows(Whichever applies in your case)
@OP:
Reset the BIOS to default, and commit it. Also any OC/system monitoring software(s) that was bundled/slip streamed with the driver packages and/or motherboards discs -- uninstall them.
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MSI P45 Platinum(BIOS v1.7B)|Q9550[E0]@3.85Ghz@1.320V[453x8.5]MCH@1.184V|ICH@1.55V|DDR_V_Ref_A_B@1.05V|NH-D14|Corsair TWIN2X4096-8500C5(5-5-5-15)@1089Mhz@2.14V
2xHD4890[Xfire]@1000/900[MEM/GPU]|Corsair 650TX|Seagate180GB+80GB+WD1TB|SONY-DVD-R|CM690|2x120mm Scythe Ultra Kaze|DELL S2409W|APC 1100VA|Scythe Kaze Server
Windows 7 Ultimate RTM - 64BIT|Catalyst 10.5 (8.14.10.0753) forced with RadeonPRO|PS3 160GB|Sony 40EX520|AC Ryan POHD Mini|APC 800VA|APC 800VA|D425KT|CM100 Elite|2TB WD|Acer D255