Notices and statements in this documentThe caution and danger statements in this document are also in the multilingualSafety Information document, which is on the IBM Documentation CD. Eachstatement is numbered for reference to the corresponding statement in yourlanguage in the Safety Information document.The following notices and statements are used in this document:v Note: These notices provide important tips, guidance, or advice.v Important: These notices provide information or advice that might help you avoidinconvenient or problem situations.v Attention: These notices indicate potential damage to programs, devices, ordata. An attention notice is placed just before the instruction or situation in whichdamage might occur.v Caution: These statements indicate situations that can be potentially hazardousto you. A caution statement is placed just before the description of a potentiallyhazardous procedure step or situation.v Danger: These statements indicate situations that can be potentially lethal orextremely hazardous to you. A danger statement is placed just before thedescription of a potentially lethal or extremely hazardous procedure step orsituation.Features and specificationsThe following information is a summary of the features and specifications of theserver. Depending on the server model, some features might not be available, orsome specifications might not apply.Notes:1. Racks are marked in vertical increments of 4.45 cm (1.75 inches). Eachincrement is referred to as a unit, or “U.” A 1-U-high device is 4.45 cm (1.75inches) tall.2. Power consumption and heat output vary depending on the number and type ofoptional features that are installed and the power-management optional featuresthat are in use.3. The sound levels were measured in controlled acoustical environmentsaccording to the procedures specified by the American National StandardsInstitute (ANSI) S12.10 and ISO 7779 and are reported in accordance with ISO9296. Actual sound-pressure levels in a given location might exceed theaverage values stated because of room reflections and other nearby noisesources. The declared sound-power levels indicate an upper limit, below whicha large number of computers will operate.Chapter 1. The System x3850 X5 and x3950 X5 server 5
