My Dell Precision M6700 laptop has quit. It won't boot or post. I want to check for a corrupt CMOS using a taken apart. I haven't removed the CPU heat sink yet, but I suspect the BIOS chips are the U52 and U53 positions on the motherboard because they are the two closest chips to the CMOS battery. I just wanted to confirm. The chips on my board are cFeon Q64-104HIP Q28K11a4 1301EDA, and cFeon Q32B-104HIP AJS785D4 1303LMA, respectively, if I read them correctly.