RB500R5

Hi, i have rb 500r5 ,i have miss place my ip and i have try all to reset it to no effect, kindly help me access it.thanks.
i try jumper and reset button but it not giving any ip.or restore to default.

i have the mac address but i can not connect with using winbox.

try this: http://forum.mikrotik.com/t/rb-500r5-series-reset-defualt-setting/29279/1