Hardware User's Guide

Intel® SAS Controller RS25GB008 Hardware User’s Guide 15
The supply voltages are 3.3 V ± 9 percent from PCI edge connector only. The maximum
power for the +3.3 V rail is 18 W. The +3.3 V rail is used by the 3.3 V logic circuitry and
also used to generate the other required voltage rails of +1.0 V and +1.8 V.
Thermal and Atmospheric Characteristics
The thermal and atmospheric characteristics are:
• Relative humidity range: 5% to 90% non-condensing
• Maximum dew point temperature: 32°C
• Airflow must be at least 200 linear feet per minute (SFPM) to avoid operating above
the maximum ambient temperature.
The storage and transit environment conditions are:
• Temperature range from -45°C to 105°C (dry bulb)
• Relative humidity range: 5% to 90% non-condensing
• MTBF (electrical components) number: 2,000,000 hours at 40°C
Safety Characteristics
The Intel
®
SAS Controller RS25GB008 meets or exceeds the requirements of UL
flammability rating V0. Each bare board is marked with the supplier name or trademark,
type, and UL flammability rating.
Operating Certifications
The SAS controller in this document is qualified to get Microsoft Windows* Winqual
certification (WHQL) at product launch.
Supported Device Technology
The various device technologies supported by the Intel
®
SAS controller RS25GB008
integrates 2 external high-performance SFF- 8088 x4 Mini SAS connectors described in
the subsections that follow.
Support for Hard Disk Drive Devices
The Intel
®
SAS Controller RS25GB008 integrates eight internal high-performance
SAS/SATA II ports that support SAS and enterprise-class SATA hard drives. Each port
supports both SAS and SATA devices using the SAS Serial SCSI Protocol (SSP), Serial