re:trace Bayesian Probe Advisor — Top 5 Probe Recommendations
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Board: CISCO ASA5506-X V05
Timestamp: 2026-05-01T01:11:38Z

Ranked by Expected Information Gain (EIG, bits):

  #1  U1.DDR3_DQ0
       Location : (550, 410) px
       EIG      : 4.8074 bits
       Rationale: EIG=4.807 bits; most likely net: VCC_CORE (3.6%). Probing U1.DDR3_DQ0 will resolve ~4.81 bits of uncertainty.

  #2  U1.DDR3_A0
       Location : (550, 410) px
       EIG      : 4.8074 bits
       Rationale: EIG=4.807 bits; most likely net: VCC_CORE (3.6%). Probing U1.DDR3_A0 will resolve ~4.81 bits of uncertainty.

  #3  U1.PCIE_TX0
       Location : (550, 410) px
       EIG      : 4.8074 bits
       Rationale: EIG=4.807 bits; most likely net: VCC_CORE (3.6%). Probing U1.PCIE_TX0 will resolve ~4.81 bits of uncertainty.

  #4  U1.PCIE_RX0
       Location : (550, 410) px
       EIG      : 4.8074 bits
       Rationale: EIG=4.807 bits; most likely net: VCC_CORE (3.6%). Probing U1.PCIE_RX0 will resolve ~4.81 bits of uncertainty.

  #5  U1.SATA_TX
       Location : (550, 410) px
       EIG      : 4.8074 bits
       Rationale: EIG=4.807 bits; most likely net: VCC_CORE (3.6%). Probing U1.SATA_TX will resolve ~4.81 bits of uncertainty.

Methodology
-----------
The ProbeAdvisor maintains a Dirichlet belief distribution over
possible net labels for each unknown node. Expected Information
Gain (EIG) is approximated as H(prior) minus expected posterior
entropy after observing a measurement — equivalent to mutual
information I(net_label ; measurement).

Pin-name priors boost probability for power (VCC/VDD) and
ground (GND/VSS) nets before any measurements are taken.