help

have just fitted my first magic2 chip in a v7,now the problem it will boot ps2,ps1,audio& dvd movies but no backups of any kind,have loaded backups as instructed & nothing happens.when you press reset the disc spinsthen just has the screen goes from browser to actually loading game the disc stops spinning, have checked all my points & they seem sound have checked continuity with meter & all is ok there are no bridged points have checked these with meter also. it just seems asthou there is no chip in there,bought chip from playstationchips.co.uk does any one know of these or heard of any problems hope somebody can help

thanks in advance for any help offered