533MHZ DDR2 stuck at 192.2mhz?

Jun 14, 2002
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i've recently updated my mb bios and now my memory is running @ 192.2mhz as show in CPU-Z. I currently have 1.0GBx2 dual channel on my mb, my motherboard is asrock 775DUAL-VSTA and Intel E6300 processor.

How do I fix?