V10 and messiah2 v1.33b

Hi all I have installed a messiah2 1.33b in a V10 and its working great as far as booting is concerned. I do have one problem though. While playing games I get this really loud high pitch whistle noise from the speakers for about 10 seconds every now and then, its not very offten but very anoying. Nothing else can be heard from the game while its doing this, the game play is not effected. I have attached a picture of the install. I'm thinking the mod or my wiring is sending out a frequncy that the mobo is picking up. Any help with this would be great. Thanks