HP ProLiant BL45p Server series - Manual (Page 23)

Operations 23
4. Remove the server blade from the server blade enclosure.
WARNING: To reduce the risk of personal injury from hot
surfaces, allow the drives and the internal system components to
cool before touching them.
CAUTION: To prevent damage to electrical components,
properly ground the server blade before beginning any installation
procedure. Improper grounding can cause ESD.