Miałem podobny problem przy cofaniu biosu na GA-EX38-DS4. Najpierw wgrałem najnowszy BIOS F3 i płyta działała. Postanowiłem jednak że cofnę BIOS do F2 i "klops" mimo DualBios. Płyta została naprawiona w serwisie i sprzedałem.
Jednak wczoraj przypadkowo znalazłem taki opis jak reanimować płytę, byłbym ciekawy czy zadziała (bo nie chcę znów kupić płyty w której nie można samemu wgrać BIOSa), chyba że wolisz od razu oddać na serwis. Opis dotyczył wprawdzie płyty GA-X38-DQ6 ale sądzę że z EX38 będzie podobnie.
Opis tego sposobu pochodzi z tej strony.
Initial build yielded no POST. Boot cycle problem. System would spin fans for a few seconds, then apparently reboot, cycling ad nauseum.
Gigabyte tech support (20 minutes on hold, Tuesday, around 5:00PM PST) offers MB not recognizing memory. They advise: Please put-on anti-stat strap, disconnect all external power, turn off power supply, remove all memory sticks, disconnect HDDs and optical drives; leave 8 & 24 pin power connectors, cooling fans, graphics card in; remove CMOS battery; with small screw driver hold down silver clip in center of CMOS battery holder for 10 seconds (THIS APPEARS TO BE TRICK to resolve my no-POST, boot cycle problem); re-install CMOS battery and one stick memory, re-connect power, turn-on power supply, connect keyboard and monitor. (I'd left 1394, USB headers, front panel headers, FDD connected); turn on PC with front panel switch. This yielded successful POST. Save CMOS to BIOS. Made some adjustments. Exit and SAVE. Power down. Reconnect HDDs on 0,1 SATA; reconnect optical drives on SATA 2,3; install second memory stick. Power up. Good POST pressing Del into BIOS. Drives recognized. That's as far as I got tonight. BIOS-F6, Intel Q6600 SLACR, Asus V-60 cooler (P5E MB build failed due to BIOS fubar, CrazyCool heatsink removed per manual), Crucial Ballistix 2x1G BL2KIT 12864AA804 DDR2 6400, Sapphire HD2600XT 512MB, 2xSeagate 320GB HDD, 2xAsus DRW-2014L1T Opticals, Toughpower 700W Modular PS via Tripplite 1500 LCD UPS and HT10DBS surge (tech support asked about my power source.)