Using CentOS 5.3 64-bit, we initially had audio quality issues with supermicro motherboard but found they came with disk write caching disabled. Enabling disk write caching significantly improved audio quality. Regards, Robert From: Aloysius Lloyd [mailto:lloyd.aloysius@gmail.com] Sent: Thursday, December 30, 2010 10:15 AM To: FreeSWITCH Users Help Subject: Re: [Freeswitch-users] CentOS 5.5 - FreeSWITCH - Audio Quality issues Norman, I use iWeb ( www.iweb.ca<http://www.iweb.ca> ) dedicated server . Motherboard - Supermicro . Thanks Lloyd On Thu, Dec 30, 2010 at 1:09 PM, Norman Tomlins <norm@voicenetwork.ca<mailto:norm@voicenetwork.ca>> wrote: Lloyd, What motherboard was it that gave you the issues? Norman Tomlins Voice Network Inc On Thu, Dec 30, 2010 at 12:57 PM, Aloysius Lloyd <lloyd.aloysius@gmail.com<mailto:lloyd.aloysius@gmail.com>> wrote: Finally solved the problem. There is a hardware (Motherboard) issue on the server. Replace the server with the new one and use 64bit ... voice quality problems goes away. Thank you for the help. Thanks and regards, Lloyd