Freezes at Asus Splash .Recomended Fix Worked a Day

ss_56

Distinguished
Jan 29, 2011
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ASUS M4A89GTD PRO AMD motherboard . Phenom II X4 955 Black Edition Deneb 3.2GHz CPU . PNY Optima16GB DDR3 Memory .Ultra U12-40873 LSX 650-Watt Power Supply . Seagate Barracuda
7200.11 ST31500341AS 1.5TB HD

Hi; i'm in a quandry. This pc is five years old; suddenly on restart, i couldn't get past the splash screen and with my wireless keyboard, couldn't get to bios or boot screen. Had my pc buddy take it home.He took out the memory and it booted up with one stick.He also changed out the HD, thinking that might be part of the problem. i took it home; it hanged again. I plugged in a wired keyboard, restarted and hit del at the splash. I get into the Bios...yay... and saw that it was set to boot from my external hd. i set the boot correctly and i've been using the pc all day, restarted several times without a hitch till just now...stuck again at the splash. Plugged the wired keyboard back in but now del and f8 are unresponsive. Why am i having this issue?

Please help