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Kontron IP Network Server NSC2U
December 2009 Product Guide, rev. 1.423
Features—NSC2U Server
2.10.4 Hard Disk Drive and Power Supply Cooling
Airflow to cool the hard disk drives is provided by the fans that are integrated into the
PSUs. The airflow is adequate even with a single PSU installed as long as a filler panel is
installed in the other PSU slot.
2.10.5 Fan Speed Control
The server board contains Pulse Width Modulation (PWM) circuits, which control the
12 Vdc fan voltage to provide quiet operation when system ambient temperature is low
and there are no fan failures. There is one PWM circuit for each cooling domain,
resulting in one PWM being connected to each of the two 80×38 mm fans and the other
PWM connected to the two dual-rotor 56×40 mm fans. Based on the ambient
temperature, monitored by the front panel sensor, the fan speeds (PWM duty cycle) are
set per Table 4.
2.10.6 Cooling Summary
The four-fan cooling subsystem of the NSC2U Server is sized to provide cooling for:
• up to two server board processors
• up to 32 Gbytes of FB DIMM memory
• up to six SAS hard drives
• up to five PCI add-in cards consuming a maximum of 25W for each full-height
PCI-X/PCIe add-in cards and 10W for each low-profile PCIe add-in card
The cooling subsystem is designed to meet acoustic and thermal requirements at the
lower fan speed settings. At the higher fan speed settings, thermal requirements are
met for the maximum ambient temperatures, but acoustic requirements are not met.
Table 4. Fan Speed Settings
Temperature (°C)
CPU1 Fan
PWM DC (%)
CPU2 Fan
PWM DC (%)
PCI Fans
PWM DC (%)
0 - 28 46 46 46
29 47 47 47
30 48 48 48
31 53 53 53
32 58 58 58
33 63 63 63
34 68 68 68
35 73 73 73
36 78 78 78
37 84 84 84
38 89 89 89
39 95 95 95
40 100 100 100
- Product Guide 1
- Rev. 1.4 1
- Legal Lines and Disclaimers 2
- Contents 3
- NSC2U Server—Contents 4
- Revision History 7
- NSC2U Server—Revision History 8
- 1 Introduction 9
- 1.3 Product Accessories 10
- Introduction—NSC2U Server 11
- 2Features 12
- 2.1 Server Components 14
- 2.2 NSC2U Server Back Panel 15
- 2.3 NSC2U Server Front Panel 15
- TS000112 17
- 2.5.1 SFP Board Features 18
- Features—NSC2U Server 19
- 2.9 Power Supply 21
- 2.10 System Cooling 21
- 2.10.3 PCI Cooling Area 22
- 2.10.5 Fan Speed Control 23
- 2.10.6 Cooling Summary 23
- 2.11 Hardware Requirements 24
- 3.1 Before You Begin 25
- TS000543 26
- TS000272 27
- TS000544 28
- TS000274 29
- TS000219 30
- AF000810 30
- TS000275 31
- AC PS DC PS 32
- 3.4.1.1 Configuration Jumpers 33
- 3.4.1.2 BIOS Select Jumper 33
- 3.4.2.1 Memory RASUM Features 36
- 3.4.2.2 Supported Memory 36
- TS000300 40
- 3.4.3 Installing DIMMs 41
- Branch 0 42
- Branch 1 42
- 3.4.5.2 Removing a Processor 44
- AF000768 45
- AF000770 46
- AF000771 46
- AF000772 47
- 4.1 Before You Begin 50
- 4.2.1 Riser Card Options 52
- TS000545 53
- TS000280 54
- Full-height Add-in Cards 55
- TS000546 56
- 4.4 Installing Intel 57
- Remote Management Modules 57
- GCM3 ModuleRMM Module 58
- TS000320 59
- TS000319 60
- TS000550 61
- TS000551 62
- TS000552 63
- TS000328 64
- TS000327 64
- TS000329 65
- TS000511 66
- TS000512 67
- TS000513 68
- TS000514 69
- TS000515 70
- TS000516 71
- TS000517 72
- TS000518 73
- TS000519 74
- Figure 59 75
- TS000521 76
- TS000522 77
- TS000523 78
- TS000524 79
- TS000525 80
- TS000526 80
- TS000527 81
- TS000528 82
- TS000529 83
- TS000530 84
- 4.6.4 Re-assemble the System 85
- TS000532 86
- TS000533 87
- TS000534 88
- TS000535 89
- TS000536 90
- TS000502 91
- TS000503 92
- TS000284 93
- TS000301 94
- TS000302 94
- TS000303 95
- TS000554 96
- TS000555 97
- 5.1 Before You Begin 98
- TS000556 99
- 5.2.1 Removing the CPU Fans 100
- 5.2.2 Replacing the CPU Fans 101
- NSC2U Server—5 102
- TS000560 103
- TS000562 105
- TS000564 107
- TS000565 108
- TS000566 109
- Backplane Board 110
- TS000313 111
- Assembly 112
- TS000316 113
- TS000568 115
- TS000569 116
- TS000570 118
- TS000537 119
- TS000308 121
- 6 Server Utilities 122
- 6.2 Upgrading the BIOS 123
- 6.2.1.2 Obtaining the Upgrade 124
- 6.3 Clearing the CMOS 124
- 6.4 Clearing the Password 125
- 7 Troubleshooting 126
- NSC2U Server—7 128
- 7.5 LED Information 131
- 7.6 BIOS Error Messages 132
- 7.6.1 BIOS POST Beep Codes 133
- 8 Warranty 135
- NSC2U Server—8 136
- A.1 Emissions Disclaimer 137
- A.2 Intended Uses 137
- NSC2U Server—A 138
- A.3 Safety Cautions 139
- Wichtige Sicherheitshinweise 140
- Consignes de sécurité 142
- Information en 144
- B.2.1 FCC (USA) 148
- B.2.4 VCCI (Japan) 149
- B.2.5 BSMI (Taiwan) 149
- NSC2U Server—B 150
- Appendix C: Getting Help 151
- NSC2U Server—C 152
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