I recently upgraded my DX58SO to 12GB RAM from 6GB. Once installed, it took upwards of 30+ seconds to POST and then another 20+ to boot Windows 7.
It wasn't until I upped my IOH Core and QPI/Uncore voltage that things seemed to return to normal (quick POST, fast Windows 7 boot time).
Can anyone confirm that my voltage and timing settings are appropriate for my system? Everything appears to be in order and the system seems stable, but I wanted to be certain I wasn't setting something incorrectly.