diff --git a/doc/FAQ b/doc/FAQ
index a015a881..8a95ab80 100644
--- a/doc/FAQ
+++ b/doc/FAQ
@@ -685,6 +685,11 @@ motherboard manufacturers don't think they're worth monitoring (they
 are mostly unused these days). You can just add `ignore inN' lines to
 `/etc/sensors.conf' to hide them.
 
+   Another possibility is that these lines are used to monitor different
+voltages. Only the motherboard manufacturer can tell for sure. Taking a
+look at what voltage values the BIOS displays may provide valuable
+hints though.
+
 4.7 What are VID lines? Why is the VID reading wrong?
 =====================================================
 
diff --git a/doc/lm_sensors-FAQ.html b/doc/lm_sensors-FAQ.html
index 2eedc236..5b4a9dfe 100644
--- a/doc/lm_sensors-FAQ.html
+++ b/doc/lm_sensors-FAQ.html
@@ -1033,6 +1033,11 @@ motherboard manufacturers don't think they're worth monitoring
 (they are mostly unused these days). You can just add
 <span class="command">ignore inN</span> lines to <span class="file">/etc/sensors.conf</span> to hide them.
 
+   <p>Another possibility is that these lines are used to monitor different
+voltages. Only the motherboard manufacturer can tell for sure. Taking
+a look at what voltage values the BIOS displays may provide valuable
+hints though.
+
 <div class="node">
 <p><hr>
 <a name="Section-4_002e7"></a>Next:&nbsp;<a rel="next" accesskey="n" href="#Section-4_002e8">Section 4.8</a>,
diff --git a/doc/lm_sensors-FAQ.texi b/doc/lm_sensors-FAQ.texi
index 30111000..948eb2a1 100644
--- a/doc/lm_sensors-FAQ.texi
+++ b/doc/lm_sensors-FAQ.texi
@@ -700,6 +700,11 @@ motherboard manufacturers don't think they're worth monitoring
 (they are mostly unused these days). You can just add
 @command{ignore inN} lines to @file{/etc/sensors.conf} to hide them.
 
+Another possibility is that these lines are used to monitor different
+voltages. Only the motherboard manufacturer can tell for sure. Taking
+a look at what voltage values the BIOS displays may provide valuable
+hints though.
+
 
 @node Section 4.7, Section 4.8, Section 4.6, Problems
 @section What are VID lines? Why is the VID reading wrong?