Hi, here is the information for the dx7500 model.<br>The bios link is <a href="http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&amp;cc=us&amp;prodTypeId=12454&amp;prodSeriesId=3804427&amp;prodNameId=3804428&amp;swEnvOID=1093&amp;swLang=13&amp;mode=2&amp;taskId=135&amp;swItem=vc-73923-1">here</a>.<br>
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