Fake DVI dual link cable?

[bijay135]

Hello everyone. So I am attempting to overclock my monitor which is Philips 227E3LH. I have a Nvidia GTX 750 and a DVI cable.

So I managed to successfully overclock my monitor to 1080P 75Hz and been using it for years without any problems or frame skipping with single link DVI cable. I can overclock using two ways. First without using the pixel clock patcher using LCD reduced timing at 75Hz which results to 164.6Mhz. Second using the pixel clock patcher and LCD native at 75Hz which results to 185.6Mhz.

So I bought a Dual link DVI cable so I can use native timings at 75Hz without without using the patcher. I am certain dual link DVI has 330Mhz pixel clock limit but this cable I got has same results as single link still cant go over 165Mhz. My monitor and graphics both has Dual Link DVI ports. So, although having 24-pins I suspect it is a fake dual link DVI cable.

Is the Pixel Clock patcher needed to get higher than 165Mhz in a Dual Link DVI cable or mine is surely fake.1080P 75hz at 185Mhz without the patcher possible in real dual link DVI cable? Thanks for reading.