When U press DEL key(or F2) BIOS windows appears & you can note down version from there
Or you may use external applications that can tell u about its version
or
You can use BIOS Agent to check your BIOS version, among other things. One source of download is -
*www.majorgeeks.com/The_BIOS_Agent_d5038.html
It's also available through softpedia - www.softpedia.com/get/System/System-Info/BIOS-Agent.shtml
The simplified version number is also often given near the top of the POST screen when you turn on your computer, e.g. 1.04
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