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-rw-r--r--release/texts/alpha/HARDWARE.TXT4
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diff --git a/release/texts/alpha/HARDWARE.TXT b/release/texts/alpha/HARDWARE.TXT
index ec443194c06d..41d58c15425b 100644
--- a/release/texts/alpha/HARDWARE.TXT
+++ b/release/texts/alpha/HARDWARE.TXT
@@ -1378,6 +1378,10 @@ RUNECU at the SRM >>> prompt.
EISA VGA adapter is treated as an ISA device. It therefore
works OK as a console.
+A special Extended I/O module for use on the C-bus was planned-for.
+Whether they ever saw daylight is unknown. In any case FreeBSD has never
+been verified with an ExtIO module.
+
Power:
The machines can be equipped with redundant power supplies. Note that
the enclosure is equipped with interlock switches that switch off power