 It is similar in layout to the XL325 above.The motherboard is equipped with a Socket-370 ZIF CPU socket and uses a VIA PLE133 chipset (comprising the VT8601 North Bridge and VT82C686A South Bridge) with graphics provided via the Trident Cyberblade-i1 controller integrated into the VT8601 circuitry.Although similar in hardware to the XL405A, the XL502A (model number "12XL502A") is an upgraded model, based on its brother.