Supermicro SC-830W User manual
SC-830W CHASSIS
SC-820W CHASSIS
USER’S MANUAL
Revision 1.1
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Chapter 1
SC830W/SC820W CHASSIS
I. Chassis Specifications
Dimensions: 380 x 505 x 570 mm ( W x H x D)
A. Drive bay: 5.25” x 9, 3.5” x 2
B. 9 expansion slots
C. lockable side door and front door
D. Power Supply:
SC830W --Dual Redundant 300W ATX 2.03 compliant
SC820W-- Single Redundant Cooling 400W ATX 2.03 compliant
E. Maximum board size : 18” x 13”
F. Cooling system: Two sections of cooling. One cooling system for each chamber of the chassis.
1) On the Hard Disk Drive side—two of 12-cm exhaust fans.
2) On the Main board side – There are two cartridges on the front. Inside each cartridge, there are two
cooling fans. Each fan is 9-cm with 3-pin connector.
3) Two Fan deflectors and two fan door-blocks are also included. These deflectors are designed to
optimize airflow, and the fan-door blocks to prevent hot air from being drawn back.
H. Parts included: Mounting kits, drive bay rails (11 pairs), rubber stands, cables and wires tie wraps.
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2. Installation Procedures
To Open the Side Doors:
Please locate 4 holes and a lock on the motherboard sides of chassis. Unscrew the four screws on the side door,
and the door will be unlocked. Move the doors slightly upward to open the door. Both side doors are unlocked
by default. However, if you lock one side door by using the key provided, both doors will be locked.
To Install the Motherboard:
A. Check if the I/O port fits your chassis I/O plate or not. (They are several kinds of I/O shield standards. The
default I/O for this chassis is Venus with punch out plug for the sound port.)
B. Check the mounting holes on the motherboard to see if they align with the mounting stands on the chassis. If
not, add or remove the mounting stands to match the mounting holes on the board with the holes on the chassis.
C. Remove the unnecessary mounting stands under the motherboard to avoid shorting the circuitry on the
motherboard.
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To Attach the Black Rubber Standoffs to the Inside Motherboard Tray to
Function as Shock Absorbers.
To prevent the motherboard from being damaged by impact, please peel off the double-sided tape of the rubber
standoffs and attach the black rubber standoffs on the motherboard tray at the locations under the CPU and PCI
slots. This is especially important for the Xeon systems.
To Open the Front Panel:
Locate three locking tabs at the edge of the panel (The drive bay doors can be detached if needed.) Slide the
locking tabs upward and the door will swing open. To detach the front panel, you need to open the panel to a
wide angle (--the angle should be greater than 90 degrees) and move it slightly upward to slide the panel out of
its position.
To Install the Device in the Bay:
All the drive bays need to have a pair of rails mounted to the device. Slide in the device until you hear the click,
and the device is in the locked position.
To remove the bay:squeeze the metal bars and pull the device out.
Unlock by moving
up the locking tab
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To Install IDE , Floppy and SCSI Cables:
A. The chassis has eight cable access holes to enhance cable organization and to optimize airflow in the
chassis.
B. Locate eight cable holes inside the chassis. Route the cables through the closest cable access holes to the
best organize the cables and to increase airflow in the chassis.
To Install the Cooling Device:
All fan cartridges, fan deflectors and fan door blocks are designed to optimize ventilation inside the chassis. If
a cooling fan is not installed into the cooling fan slot, you need to install the door block in the slot to prevent
drawing hot air back into the motherboard side of the chassis.
For best ventilation, please keep both side-doors closed at all time.
Fan Door block Dual Fan with cartridge
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To Adjust Airflow Directions
Two deflectors are designed to improve air circulation in the chassis. Loosen and tighten the screws on the
deflectors to redirect the airflow in the chassis. If needed, the deflectors also can be removed.
LED Connections
LED Indicators on the Front Panel
LED Definitions:
1. LED1: POWER (Power on Indicator)
2. LED2: NIC (Networking adapter card activity indicator)
3. LED3: HDD (Hard disk operating indicator)
4. LED4: PWR FAULT (Power supply failed indicator)
5. LED5: FAN FAIL
6. LED6: OVERHEAT
7. LED7: DEV 1
8. LED8: DEV 2
9. LED9: DEV 3
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Switches:
1. POWER: Power Switch
2. ALARM: ACPI Sleep Switch
3. RESET: Reset Switch
Front Panel LED PCB Pin Assignments
JP4 header
1 Power LED (Green) + 2 X
3 X Key 4 Fan Fail LED (Red) +
5 Power LED (Black) 6 Fan Fail LED Ground (black)
7 Hard drive LED (Yellow) + 8 Power Fail LED(Red) +
9 Hard drive LED (Black) 10 Power Fail LED Ground (black)
11 Power Switch (Green) + 12 NIC Activity LED (Yellow) +
13 Power Switch Ground (Black) 14 NIC Activity LED Ground (Black)
15 Reset Switch (White) 16 X
17 Reset Switch Ground (Black) 18 X
19 ACPI Switch (White) 20 X
21 ACPI Switch Ground (Black) 22 X
23 X 24 X
25 Overheat LED (Red) + 26 Overheat LED Ground (black)
27 X 28 Speaker (Red)
29 X 30 X
31 X 32 X
33 X 34 Speaker Ground (black)
Pin 1 GND
Pin 1 GND
Pin 1 GND
JP5 : Device 1 LED
JP6 : Device 2 LED { Device 1,2,3 LED for system device LED }
JP7 : Device 3 LED
LEDs and Power and Reset wiring connections:
1. PWR LED : Pin 1 and Pin5 for System Power LED.
2. HDD : Pin 7and Pin 9 for IDE hard drive activity.
3. PW S : Pin 11 and Pin 13 for System Power On-Off switch .
4. Reset : Pin 15 and Pin 17 for system reset switch.
5. Switch : Pin 19 and Pin 21 for ACPI switch. ( momentary switch)
6. Fan Fail : Pin 4 and Pin 6 for system fan fail LED indication.
7. Power Fail : Pin 8 and Pin 10 for Power fault LED indication.*
8. NIC LED : Pin 12 and Pin 14 for system Network Activity LED indication.
9. O.H. : Pin 25 and Pin 26 for system Overheat LED indication.
10. Speaker : Pin 28 and Pin 34 for system Speaker.
* Power fail LED: It can be connected to power supply Power LED (Green/Black). Please check the ATX
Wiring harness diagram.
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CHAPTER 2: POWER SUPPLY
1. Installation: Hot-Swap procedures
Please refer to the following procedures should either one of your power supply units is found
defective.
A) Locate the defective power supply by examining the individual LED on the module, or the LED on the
system front panel.
B) Unscrew the defective power supply unit.
C) Remove the defective power supply unit.
D) Replace a bad unit with a new GOOD power supply unit by inserting a new power supply into the power
supply system.
E.) Check the DC OK LED-- the power supply status indicator. There are two DC OK LED Indicators, one
indicator for each power supply unit. If a power supply unit functions correctly, its indicator should light
up. If the indicator does not light up, then you need to fix the power supply unit.
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2. Power Supply Features
lHot-Swappable capability
lInternal ORing diode for Redundancy Operation
lDual AC input for Redundancy safety
lPower fault alarm system
lFan rail with noise decreasing function
lStandard PC connection/wiring interface
lMeet the up-to-date ATX specification
lEasy operating and maintain
lMTBF (Demonstrated) greater than 100,000 hours
3. Power Supply Specifications
3.1 Input Voltage
Parameter Min Nor Max Units
Voltage 90 VAC 115 VAC 132 VAC Vrms
Voltage 180 VAC 230 VAC 264 VAC Vrms
Frequency 47 63 Hz
3.2 DC Output Characteristics
3.21 Output Regulation To be met under all combinations of loading.
Output
Voltage V1
+5V V2
+3.3V V3
+12V V4
-5V V5 -
12V Standby
5V
Max. Load
Min. Load 30A
3A 15A
0A 12A
1A 0.5A
0A 0.5A
0A 1A
0A
Max. Power Total 150W 144W 2.5W 6W 5W
Load Reg. % +/-5% +5/-3% +/-5% +/-10% +/-10% +/-5%
Line Reg. % +/-1% +/-1% +/-1% +/-1% +/-1% +/-1%
3.2.2 Ripple & Noise
Ripple & Noise +5V +3.3V +12V -5V -12V Standby
5VSB
Ripple % +/-1% +/-1% +/-1% +/-1% +/-1% +/-1%
Noise % +/-1% +/-1% +/-1% +/-2% +/-2% +/-1%
3.3 Remote Sensing
The +3.3V and +5V outputs shall have provisions for remote sensing to
compensate for 100mv of cable, connector & PCB trace drops. The default
+3.3V sensor shall be connected to pin 11 of Connector P1. The +5V sensor shall be
connected to pin 20 of Connector P1. The power supply shall draw no more
than 10mA through the remote sensor line to keep the DC offset voltage to a
minimum.
3.4 Remote ON/OFF(PS-ON)
PS-ON is an active low signal that turns on all of the main power rails,
including +3.3V,+ 5V,-5V,+12V & -12V power rails. When this signal is
held up by the PC board or is left open circuited, outputs of the power rails
should not deliver current and should be held at a zero potential with respect
to ground. Power should only be delivered to the rails if PS-ON signal is
held at ground potential. This signal should be held at +5VDC by a pull-up
resistor which is built in internally.
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Power On P1-PIN #14 PS-ON Power Switch P1-PIN #14 PS-ON
ON LON IN
OFF HON IN
OFF X ON OUT
OFF XOFF X
3.5 +5V SB
The +5VSB output is always on (+5V Standby) when AC power is applied
and the power switch is turned on. The +5VSB line is capable of delivering at a
maximum of 1.5A for PC board circuit to operate.
3.6 Efficiency
65% min. at full load test.
3.7 Timing/Housekeeping/Control
3.7.1 PS-OK Signal
3.7.2
Off
PS-ON On
~
95%
10% T5
+5V/+3.3V O/P ~
PS-OK T4
T3
PW-OK Sense Level =95% of nominal T2
Note:
T2:The output voltage shall rise from <10% of nominal to within the regulation
specified in Section 2.2 within 0.1 to 20 ms.(0.1ms £T2 £20ms)
T3 T4 and T5 are as following Table:
Signal Type: +5VDC,TTL compatible
Logic level low <0.4V while sinking 4 mA
Logic level high Between 2.4VDC and 5VDC output while sourcing 200mA
High state output impedance 1KVfrom output to common
PS-OK delay 100ms < T3 < 500 ms
PS-OK rise time T5 £10 ms
Power down warning T4 > 1 ms
3.7.2 PWR_OK(Power Good)
PWR_OK is a “power good” signal. It should be asserted high by the power supply to indicate that the
+5VDC and +3.3VDC outputs are above the undervoltage thresholds listed in Section 3.2 . PWR_OK
should be descended to a low state when either the +5VDC or the +3.3VDC output voltages falls below the
undervoltage threshold, or when the main power has been removed for a time long enough that power
supply operation cannot be guaranteed beyond the hold-up time. The electrical and timing characteristics of
the PWR_OK signal are given in Section 4.7.1.
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