While this is similar to your other question, it would be very nice to understand the full context of what you're doing; e.g. why are you looking to query BIOS settings, and what does that have to do with the uptime of already-running systems?
If you're looking at automating the BIOS configuration of multiple HP ProLiant servers, there are also tools for that. The main tool you'll need is
hprcu from the SmartStart Scripting Toolkit.
This utility can capture or import an XML file containing BIOS configurations. The output file is very readable, so the parameter you're looking for would appear like:
<feature feature_id="158" selected_option_id="1" sys_default_option_id="1" feature_type="option">
<feature_name>Intel(R) Virtualization Technology</feature_name>
Usage: Hprcu [OPTION]
-?, -h Display this usage message
-s, Save the current configuration to a file
-l Load configuration settings from a file
-f Configuration input/output file, defaults to standard out
-t Outputs the feature help and warning text. Only valid with the Save option.
-r Save/Load raw data features(IPL, PCI Devices, Controller Order, etc). Must be applied to identical systems.