diff --git a/audit/internal/platform/benchmark.go b/audit/internal/platform/benchmark.go
index 630bc83..e4cdaa0 100644
--- a/audit/internal/platform/benchmark.go
+++ b/audit/internal/platform/benchmark.go
@@ -4152,9 +4152,15 @@ func (s *System) RunNvidiaPowerBench(ctx context.Context, baseDir string, opts N
 		c, restore, singleRows := runBenchmarkPowerCalibration(ctx, verboseLog, singleDir, []int{idx}, singleInfo, logFunc, nil, durationSec)
 		appendBenchmarkMetrics(&allPowerRows, singleRows, fmt.Sprintf("single-gpu-%d", idx), &powerCursor, 0)
 		ipmiSingleCancel()
-		if w, ok := <-ipmiSingleDone; ok {
+		sdrSingle := sampleIPMISDRPowerSensors()
+		if sdrSingle.PSUInW > 0 {
+			singleIPMILoadedW[idx] = sdrSingle.PSUInW
+			logFunc(fmt.Sprintf("power calibration: GPU %d single-card IPMI loaded: %.0f W (SDR PSU AC input)", idx, sdrSingle.PSUInW))
+		} else if w, ok := <-ipmiSingleDone; ok {
 			singleIPMILoadedW[idx] = w
-			logFunc(fmt.Sprintf("power calibration: GPU %d single-card IPMI loaded: %.0f W", idx, w))
+			logFunc(fmt.Sprintf("power calibration: GPU %d single-card IPMI loaded: %.0f W (DCMI)", idx, w))
+		} else {
+			<-ipmiSingleDone // drain channel
 		}
 		allRestoreActions = append(allRestoreActions, restore...)
 		if r, ok := c[idx]; ok {