CryoFlux Loop Architecture Study

flux

Rev C is revised in place with the trap-ID and mass reconciliation, fluid-specific failure tables, blackout budgets, and matching nitrogen/argon pressure cases. I’m now checking those deliverables and the archival preservation; the modeled tables do not establish physical trap elimination, safe relief capacity, or a qualified common coupling.
Thought for 3 mins 37 sec
Thought for 24 sec
Awaiting 1 task
"Rev C Documentation Review" completed.

flux

Verification found one connection-model error: detached pockets in the recovery circuit were routed to the fixed receiver instead of retaining their own recipient. I’m correcting those graph rows and refreshing the linked calculations and audit records; the mass reconciliation and budget calculations passed their checks.
Thought for 12 mins 54 sec
Thought for 17 sec
Thought for 7 sec
Awaiting 1 task
"Loop Architecture Study Planning" completed.

flux

Revised Rev C in place in Loop Architecture Study in project files, with the four task tables, complete modeled ID/mass reconciliation, blackout budgets, nitrogen/argon cases, and linked calculations and audits; verification found and corrected one detached-recovery routing error.
Corrected Rev B/A were left untouched, with the archived-tail readback limitation disclosed; R-CL10 remains unchanged, D-interface scope remains a Founder question, and no design or release changes were made.
Physical safety and common-interface qualification remain blocked—next priorities are actual valve/cavity drawings and inventories, the approved receiver/pressure basis, and measured parked heat leaks.
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ERC Findings Classification
Review timestamp: 2026-09-20 15:36:20 UTC
Fresh ERC audit window: 2026-09-20 15:35:12–15:36:20 UTC
Governing basis: ColdNative_Platform_ICD_RevA_Sep20_2026.txt and the current architecture record
Total fresh open ERC findings: 1,162
Executive summary
The fresh electrical review contains 1,071 floating-pin errors, 90 single-pin-net errors, and 1 unspecified-pin-type warning. Classification separates 1,158 expected interface-stub artifacts, 2 intentional/justified internal open items, 2 real electrical findings requiring correction, and 0 uncertain items.
The overwhelming majority are release-blocking interface-completion artifacts caused by the intentionally unmapped COM-HPC connector pair and provisional OAM connector. They are expected in the present architecture state, but they are not evidence that the schematic is release-ready.
Summary by ERC type

Table

ERC finding typeErrorWarningTotal
Floating/unconnected pin1,07101,071
Single-pin net90090
Pin-type warning/error — unspecified pin type011
Driver conflict000
Power-pin conflict000
No-connect violation000
Pin-to-pin conflict000
Shorted components000
Undriven net000
Unconnected wire endpoint000
Unannotated component000
Similar-label/power or different-unit checks000
Total1,16111,162
Summary by subsystem

Table

SubsystemFloating pinsSingle-pin netsPin-type warningsTotal
Interfaces — COM-HPC J1/J12372680440
Interfaces — OAM J269950704
Power Entry and Protection0112
N+1 48 V to 12 V0101
Always-On Power0000
Management and Sequencing0000
Management Communications0404
Admission Interlocks011011
Telemetry and Sensors0000
Other0000
Total1,0719011,162
Connector floating-pin reconciliation

Table

ConnectorSubsystemFloating-pin countClassification
J1Interfaces — COM-HPC J1/J12232Expected stub artifact — authoritative full carrier mapping/use decisions are incomplete
J12Interfaces — COM-HPC J1/J12140Expected stub artifact — unresolved/unused COM-HPC and PCIe interface positions remain deliberately unsuppressed
J2Interfaces — OAM J2699Expected stub artifact — provisional non-authoritative OAM connector remains unmapped
Total1,071
Artifact/defect classification cross-table

Table

Artifact versus defectFloating pinSingle-pin netPin-type warningTotal
Expected stub artifact1,0718701,158
Intentional/justified internal open item0202
Real electrical finding requiring schematic correction0112
Uncertain — owner ruling or authoritative mapping required0000
Total1,0719011,162
Expected stub artifacts

Table

GroupCountSubsystemBasis
J1 floating pins232Interfaces — COM-HPC J1/J12Unmapped, optional, reserved, or unsupported COM-HPC positions are deliberately not suppressed without authoritative mapping/no-connect evidence.
J12 floating pins140Interfaces — COM-HPC J1/J12Same basis; includes unresolved host-interface positions around the second COM-HPC connector.
J2 floating pins699Interfaces — OAM J2J2 is provisional and the authoritative OAM r2.0 ball map is missing; power, grounds, management and high-speed assignments were not invented.
PCIe lane 16–31, REFCLK1 and CLKREQ1 single-pin nets67Interfaces — COM-HPC J1/J12Named host-link stubs ending at the unresolved module/OAM mapping boundary.
COM-HPC module-presence stub1Interfaces — COM-HPC J1/J12COMHPC_MODULE_PRESENT_ENVELOPE-PENDING-SELECTION at U3:PF2.
OAM presence/control/status stubs5Interfaces — OAM J2Power brake, module present, payload enable, reset and power-good nets await the exact OAM ball map.
Backplane/entry raw 48 V stub1Power Entry and Protection48V_BUS_RAW_ENVELOPE-PENDING-SELECTION at F14:LINE awaits the selected blind-mate entry connector.
Redundant CAN interface stubs4Management CommunicationsCAN_A_H/L and CAN_B_H/L await the selected backplane/management connector mapping.
Enclosure/admission interface stubs9Admission InterlocksDry gas, leak, condensation, coolant flow, coolant pressure, two cold-plate presence inputs, backplane hard-kill monitor and sensor-plausibility input.
Total expected stub artifacts1,1581,071 floating + 87 single-pin
Intentional/justified internal open items

Table

Designator/pinNetERC typeSubsystemClassification rationale
U14:IN+ANALOG_FLOOR_A_5C_TRIP_7C_RELEASE_2C_HYST_ENVELOPE-PENDING-SELECTIONSingle-pin netAdmission InterlocksIntentional open requirement: the exact analog temperature sensor and transfer network are not selected; the +5 °C trip, +7 °C release and 2 °C hysteresis intent is recorded without guessed component values.
U22:IN+ANALOG_FLOOR_B_5C_TRIP_7C_RELEASE_2C_HYST_ENVELOPE-PENDING-SELECTIONSingle-pin netAdmission InterlocksSame justified open item for the redundant independent admission channel.
Real electrical findings requiring correction

Table

SeverityDesignator/pinNet or objectERC typeSubsystemRequired correction
ErrorU20:ADDRDCM_B_ADDR_52H_12K1_TO_GNDSingle-pin netN+1 48 V to 12 VAdd the required 12.1 kΩ, 1% resistor to ground for DCM address 0x52 when schematic/footprint changes are authorized. The present net name records the intended fix, but the physical resistor is absent.
WarningD1 pins 1 and 2D1, 5.0SMDJ60A TVS symbolUnspecified pin typePower Entry and ProtectionCorrect or replace the symbol so terminal function/polarity is explicit and re-verify wiring against the datasheet. Independently, the provisional TVS remains unapproved because its clamp coordination conflicts with the OAM 59.5 V ceiling.
Real-defect count: 2. No correction was made during this read-only audit.
Uncertain items
None in the current ERC population. Findings dependent on missing authoritative connector mappings were classified as expected stub artifacts because their provisional status and deliberate non-invention are explicitly documented. This does not waive them for release: authoritative maps and owner/architecture approval are still required to close them.
Counting methodology and exact reconciliation
  1. Ran a fresh review filtered to Electrical Rule Checks and paginated all 1,162 returned findings without sampling: offsets 0, 200, 400, 600, 800 and 1000.
  2. Counted the review-type totals directly from the fresh run: 1,071 floating pins, 90 single-pin nets and 1 unspecified-pin-type warning.
  3. Re-ran focused floating-pin queries by exact connector token to reconcile all floating findings: J1 = 232, J12 = 140, J2 = 699; 232 + 140 + 699 = 1,071.
  4. Re-ran the single-pin-net review alone and enumerated all 90 entries. These reconcile as: 67 PCIe/clock request stubs + 1 COM-HPC presence + 5 OAM control/status + 1 raw-entry stub + 4 CAN stubs + 9 enclosure/admission interface stubs + 2 internal analog-floor open items + 1 DCM address defect = 90.
  5. Added the single D1 pin-type warning: 1,071 + 90 + 1 = 1,162.
  6. Artifact/defect totals independently reconcile: 1,158 expected + 2 intentional + 2 real + 0 uncertain = 1,162.
  7. Subsystem totals independently reconcile: 440 COM-HPC + 704 OAM + 2 Power Entry + 1 N+1 + 4 Management Communications + 11 Admission Interlocks = 1,162.
Scope exclusions and mutation statement
  • PCB DRC, PCB airwires, placement checks, routing checks and all other physical-layout findings are excluded from this ERC report.
  • The pre-existing PCB/layout state and its ICD Article 10 conflict were not inspected as part of the finding count except to state this exclusion.
  • No design mutation was performed: no schematic, PCB, component, net, property, wiring, footprint, placement, routing or rule data was changed.
  • The only project change made by this audit is creation of this reporting file.

  • Executive summary

  • Summary by ERC type

  • Summary by subsystem

  • Connector floating-pin reconciliation

  • Artifact/defect classification cross-table

  • Expected stub artifacts

  • Intentional/justified internal open items

  • Real electrical findings requiring correction

  • Uncertain items

  • Counting methodology and exact reconciliation

  • Scope exclusions and mutation statement