Here are the main voltage measuring points for the DFI X38/X48 UT/LT series motherboards. If you are looking for the measuring points for the DFI UT X48-T3RS, click here.
Warning: Use these at your own risk - I take no responsibility for any damage that you may cause by poking around with a DMM!
Key.
1 - CPU Vcore
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2 - VDIMM
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3 - NBcore
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4 - SBCore
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5 - CPU GTL Ref
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6 - NB GTL
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7 - CPU VTT
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