Hey guys my device is hp compaq 6200 pro microtower pc serial no. : SGH125P585 n product no. : XL504AV I have inbuilt intel hd graphics n no installed a external one n plannin to upgrade gpu I have 320 watts of psu n plannin to upgrade to 550 watts I have a pci x16(2.0) pci slot but dont know whether it is low profile or full height ??? my pci bracket is 4.2" long so it must be a full height na!!!!!! I wana know how much long graphics card my device can support!!!! I wanna use a mid -range msi nvidia gtx 750 2 gb oc ddr5 http://www.msi.com/product/vga/N750-2GD5OC.html#hero-specification or leadtek gtx 750 2 gb oc ddr5 http://www.leadtek.com/eng/product/1/697/intro.aspx will both d graphics card support my device?????