Intel SR1520MLNA Product Specification - Page 23

Intel® Server System SR1520ML Peripheral and Hard Drive Support 4. Peripheral and Hard Drive Support Note: The Intel® Server System SR1520ML is not designed to accommodate any peripheral devices mounted inside the chassis other than those listed in section 4 of this document. Other peripherals may be supported via USB interface but will always be externally mounted. See the Tested Hardware and Operating System (THOL) document for the list of supported peripherals. 4.1 Hard Drives The server system supports two fixed 2.5-inch hard drives, located toward the front of the chassis near the power supply unit. The fixed hard drive bays are designed to support SATA drives only. SATA cables and power cables are routed to each board as shown in figures 10 and 11. 4.2 Intel® Z-U130 Value Solid State Drive Two Intel® Z-U130 Value Solid State Drives are supported as internally mounted devices (one per board). The Intel® Z-U130 Value Solid State Drive is a non-volatile RAM storage device that comes in 1 GB, 2 GB, and 4 GB sizes, with an 8 GB model launching in December 2007. It is targeted at hard drive replacement for diskless compute nodes, or fast-boot / fast application access usage models for HPC products. For more information on this product, see http://www.intel.com/design/flash/nand/z-u130.htm. Two Intel® Z-U130 Value Solid State Drives can be mounted near the memory fans toward the front of the chassis. See figures 10 and 11 for mounting and cabling information. 4.3 System Fan Connectors The server system has two Intel® Server Boards X38ML, each of which drives one CPU/MCH cooling blower fan and one memory cooling fan. Each server board has three 8-pin fan connectors, but uses only two connectors to cool the system. The pin-out for each connector is provided in the following table. Table 12. 8-pin Fan Connector Pin-out (J5K1, J5K2, J5K3) Pin Signal Name 1 Ground 2 Fan Power 3 Fan Tach1 4 PWM1 5 Ground 6 Fan Power 7 Fan Tach2 8 PWM1 Type Power Power Sense Control Power Power Sense Control Description GROUND is the power supply ground Fan Power +12VDC FAN_TACH signal is connected to the SMsC* SCH5027 or SCH5017 to monitor the fan speed. Pulse Width Modulation - Fan speed Control signal GROUND is the power supply ground Fan Power +12VDC FAN_TACH signal is connected to the SMsC* SCH5027 or SCH5017 to monitor the fan speed. It use a different TACH input other than TACH1. Pulse Width Modulation - Fan speed Control signal. It used the same PWM signal as PWM1 Revision 1.0 15