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Setting up the Server in a Restricted Access Location • Access can only be gained by service persons or by users who have been instructed about the reasons for the restrictions applied to the location and about any precautions that shall be taken. • Access is through the use of a tool or lock and key, or other means of security, and is controlled by the authority responsible for the location.
Important Safety Instructions Pay close attention to the following safety instructions before performing any of the operation. Basic safety precautions should be followed to protect yourself from harm and the product from damage: • Operation of the product should be carried out by suitably trained, qualified, and certified personnel only to avoid risk of injury from electrical shock or energy hazard.
Contact Information If you need to contact ASRockRack or want to know more about ASRockRack, you’re welcome to visit ASRockRack’s website at www.ASRockRack.com; or you may contact your dealer for further information. ASRockRack Incorporation 6F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District, Taipei City 112, Taiwan (R.O.C.)
Contents Chapter 1 Introduction Package Contents Chapter 2 Chassis Overview System Components System Front View System Rear View Front Control Panel Buttons and LEDs PSU Panel Button and LEDs HDD Tray Panel LEDs Chapter 3 Hardware Installation and Maintenance Chassis Cover Hard Drives System Fan Power Supply...
2U12L6SW Chapter 1 Introduction Thank you for purchasing 2U12L6SW, a reliable barebone system produced under ASRockRack’s consistently stringent quality control. It delivers excellent performance with robust design conforming to ASRockRack’s commitment to quality and endurance. Because the hardware specifications might be updated, the content of this documentation will be subject to change without notice.
Chapter 2 Chassis Overview This chapter provides diagrams showing the location of important components of the server chassis. 2.1 System Components Middle Top Cover Rear Top Cover Front Top Cover Max. PWM Fan (4 pcs) 12 x 3.5” Hot-Swap HD D Carriers Front Controls and Indicators...
2.3 System Rear View Description Power Supply Units 4 x 2.5" Hot-Swap HDD Carriers 3 x Low Profile PCI Express Slots 2 x 2.5" Hot-Swap HDD Carriers I/O Shield (depends on the specification of the motherboard)
2U12L6SW 2.4 Front Control Panel Buttons and LEDs Description Power Button and LED LAN1 Activity LED LAN3 Activity LED* NMI (Nonmaskable Interrupt) Button* ID Button and LED LAN2 Activity LED LAN4 Activity LED* System Status LED* Reset Button *Please be noted that the functions are supported depending on the type of the motherboard. Power Button Press the power switch button to toggle the system power on and standby/sleep modes.
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Status LED Definitions Power LED Status Description Blue Power on Blinking Blue Standby(Sleep) mode Power off LAN1, LAN2,LAN3, LAN4 LEDs Status Description Yellow Link between system and network or no access Blinking Yellow Network access ID LED Status Description Blue System identification is active.
2U12L6SW 2.5 PSU Panel Button and LEDs Description Buzzer Mute Button Power Supply Status LED AC LED DC LED Fail/Warning LED Buzzer Mute Button Press the red Buzzer Mute button to stop the buzzer from making a sound and reset the buzzer alarm.
AC and DC LEDs Status Description Green Power supply DC output ON and OK Fail/Warning LED Status Description Amber Power supply failure Flashing Amber Power supply warning (1Hz) 2.6 HDD Tray Panel LEDs Description HDD Power LED HDD Activity LED Status LED Definitions HDD Power LED Status...
2U12L6SW Chapter 3 Hardware Installation and Maintenance This chapter helps you assemble the chassis and install components. 3.1 Chassis Cover Removing the Chassis Cover 1. Before removing the top cover, power off the server and unplug the power cord. 2. The system must be operated with the chassis top cover installed to ensure proper cooling. 1.
Installing the Chassis Cover 1. Lower the rear top cover on the chassis, making sure the side latches align with the cutouts. Slide the rear top cover toward the front until the cover locks into place. 2. Secure the rear top cover with the two screws. 3.
2U12L6SW 3.2 Hard Drives The 2U12L6SW chassis supports hot-swappable hard drives. Removing HDD Carriers from the Chassis 1. Press the locking lever latch on the HDD carrier to unlock the retention lever. 2. Rotate the lever out and away from the module bay and pull the hard drive out of the HDD carrier.
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Installing a 3.5-inch Hard Drive to the HDD Carrier 1. Place the HDD into the HDD carrier with the printed circuit board side facing down. Carefully align the mounting holes in the hard drive and the HDD carrier. 2. Secure the hard drive using the four screws. 3.
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2U12L6SW Installing a 2.5-inch Hard Drive to the HDD Carrier 1. Place the HDD into the HDD carrier with the printed circuit board side facing down. Carefully align the mounting holes in the hard drive and the HDD carrier. 2. Secure the hard drive using the four screws. 3.
3.3 System Fan Before replacing the system fan, power off the server and unplug the power cord. Replacing the System Fan 1. Unplug the fan connecter and remove the failed fan. 2. Align the mounting holes on the replacement fan corners with the fan mounts on the fan bracket.
2U12L6SW 3.4 Power Supply 1. Before replacing the power supply, power off the server, unplug the power cord, and disconnect all wiring from the power supply. 2. In a redundant system, you do not need to power down the server. Replacing the Power Supply Unit The 2U12L6SW can accommodate two AC or two DC power supplies in the bay at the rear of the chassis.
Removing the Power Supply Unit To remove a failed power supply, identify the failed power supply by checking the power supply LEDs on the PSU. 1. Hold onto the power supply handle while pressing the green locking lever towards the power supply handle.
2U12L6SW 3.5 Backplanes Each barebone system supports one 3.5-inch HDD backplane and two 2.5-inch HDD/SDD backplanes. The Hot-Swap SAS/SATA backplanes serve as the interface between the motherboard and the HDDs/SDDs. Before removing and installing backplanes, power off the server and unplug the power cord. For the specification of backplanes, please refer to the Chapter 4.
Installing the Backplane 1. Hold the backplane only by the edges. 2. Position the backplane in the server system. Align mounting holes of backplane to the standoff on the chassis. 3. Secure the backplane with the four screw.
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2U12L6SW The following diagram shows the location of blackplanes on the server chassis. BP_2x20_S3x4 BP_S2x2_25 BP_S2x1_25...
3.6 Add-on Card Before installing the add-on card, power off the server and unplug the power cord. Installing the Add-on Card in the Chassis 1. Remove the screw securing the cover in place for each low profile add-on slot you want to use.
Jumper Setup The illustration shows how jumpers are setup. When the jumper cap is placed on the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is “Open”. The illustration shows a 3-pin jumper whose pin1 and pin2 are “Short” when a jumper cap is placed on these 2 pins.
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2U12L6SW #7, 8, 9 SMB Connector The SMB (SubMiniature (SMB_1) version B) connector (SMB_2) provides a communication (SMB_3) interface between the backplane and the +3VSB motherboard. Present# #6 Debug Connector The Debug Connector is used (DEBUG1) for the firmware upgrade and factory reset.
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2.5-inch Hard Drive Backplane ( to connect 4 HDDs) BP_S2x2_25/IW Front View CON2 CON4 CON1 CON3 4 x SAS/SATA Hot-swap Connectors Rear View SMB_1 DEBUG 1 SGPIO1 PWR1 MINI_SAS1 BP_S2x2_25/IW Description Power Connector (PWR1) Debug Connector (DEBUG1) Intelligent Platform Management Bus Header (SMB_1) Mini-SAS Connector (MINI_SAS1) SGPIO Connector (SGPIO1 ) Pin Definitions...
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2U12L6SW #2 Debug Connector The Debug Connector is used (DEBUG1) for the firmware upgrade and factory reset. Debug RST# #3 Intelligent Platform This 5-pin connector IPMB_SMBDATA Management Bus Header provides a communication IPMB_SMBCLK +3VSB (SMB_1) interface between the backplane and the motherboard.
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BP_S2x1_25/IW ( to connect 2 SSDs) Front View CON2 CON1 4 x SAS/SATA Hot-swap Connectors Rear View SAS2 SAS1 PWR1 SMB_1 BP_S2x1_25/IW Description Power Connector (PWR1) SAS Connector (SAS2) SAS Connector (SAS1) Intelligent Platform Management Bus Header (SMB_1) SGPIO Connector (SGPIO1 ) Debug Connector (DEBUG1)
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2U12L6SW Pin Definitions #1 Power Connector The 4-pin connectors (PWR1) provide power to the backplane. GND1 GND2 +12V #2, 3 SAS Connectors These two SAS connectors (SAS1, SAS2) support SAS/SATA data SAS_2 SAS_1 cables for internal stor- age devices. The current SAS2/SATA3 interface allows up to 6.0 Gb/s data transfer rate.
Appendix A Rails Installation The rails installation instructions in this manual are example only, your actual rail assembly procedure may differ slightly . Installing the Rails 1. Pull out the inner rail from rail assembly by pulling the front activating release latch forward.
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2U12L6SW 3. Each slide is pre-attached with front and rear adjustable EIA brackets. Loosen the nuts on the both brackets, and decide the proper setback distance to the opening, then tighten the nuts on the front brackets. 4. Extend the rear brackets to where it reaches the rear rack. Do not fully tighten rear bracket mounting screws until final adjustment is made.
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Optional Slide Rail Kit The optional slide rail kit is available for you to order, as listed below. Optional Accessory – Slide Rail Kit Vendor Model name IN WIN 3A68-660CP...