Notices and statements in this documentThe caution and danger statements in this document are also in the multilingualSafety Information document, which is on the Documentation CD. Each statement isnumbered for reference to the corresponding statement in your language in theSafety 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 youavoid inconvenient or problem situations.v Attention: These notices indicate potential damage to programs, devices, or data.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 model, some features might not be available, or somespecifications might not apply.Racks are marked in vertical increments of 4.45 cm (1.75 inches). Each increment isreferred to as a unit, or “U.” A 1-U-high device is 1.75 inches tall.Note:1. Power consumption and heat output vary depending on the number and typeof optional features that are installed and the power-management optionalfeatures that are in use.2. 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 the averagevalues stated because of room reflections and other nearby noise sources. Thedeclared sound-power levels indicate an upper limit, below which a largenumber of computers will operate.6 System x3650 M3 Types 4255, 7945, and 7949: Installation and User’s Guide
