Dell OptiPlex 960 Technology Guide - Page 38

DELL™ OPTIPLEX™ 960 TECHNICAL GUIDE OptiPlex 960 MT Component CPU Memory HDD (#, capacity) RMSD Graphics Adapter Typical Configuration E8400 2 GB DDR2 800 MHz 160 GB 3.5" 7200 RPM SATA2 DVD +/- RW Intel G45 Integrated Adapter High-end Configuration Q9450 4 GB DDR2 800 MHz 2 250 GB 3.5" 7200 RPM SATA2 DVD +/- RW AMD HD3470 The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 960 MT is as follows: (all values LWAd expressed in bels; 1 bel=10 decibels, re 10-12 Watts) Operating Mode Idle HDD Operating ODD Operating 90% CPU Typical Configuration Declared Sound Power (LWAd) 3.8 3.8 5.2 3.8 High-end Configuration Declared Sound Power (LWAd) 4.0 4.0 5.1 4.1 The Declared A-weighted Sound Pressure Level in decibels (re 2x10-5 Pa), at Operator, Bystander, and Desk Side Positions are measured in accordance with ISO 7779 7.6.1, 7.6.2, and C.15.2 and declared in accordance with ISO 9296 for this product is as follows1: Operating Mode Typical Configuration Declared Sound Pressure (LpA) High-end Configuration Declared Sound Pressure (LpA) Operator Position (LpA) Bystander Position (LpA) DeskSide Position (LpA) Operator tion (LpA) Posi- Bystander sition (LpA) Po- DeskSide Position (LpA) Idle 29 24 21 31 26 23 HDD Operating 29 24 22 31 27 23 ODD Operating 40 36 39 43 37 37 90% CPU 29 24 21 32 27 25 1All tests are conducted according to ISO 7779 and declared according to ISO 9296 except 90% CPU. For this mode, the system CPU was stressed at 90% utilization with no other peripheral device actively seeking. This test mode is not specified in ISO 7779, but was measured using the same microphone distances and measurement techniques defined for the other reported operating modes. 4Declared Sound Power rounded to nearest tenth of a bel per ISO 9296 section 4.4.2 38