B&B Electronics PC Watchdog Timer Card ATXWDT Especificaciones Pagina 20
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®
SRMK2 Internet Server Technical Product Specification 20
the worst case (lowest efficiency) of the power supply. Under nominal conditions the power
supply should perform above the 70% efficiency level which will lower the BTU rating.
Table 8: Overall BTU Ratings
BTU (Loaded) BTU (Max)
314 BTU 988 BTU
Table 9: Loaded System Configuration
Device Configuration
Manufacturer /
Type
CPU #1 733MHz (133 FSB) Intel Pentium III
CPU #2 733MHz (133 FSB) Intel Pentium III
Memory 256MB Micron 133
HDD #1 SCSI 9.1GB Quantum Atlas V
HDD #2 SCSI 9.1GB Quantum Atlas V
CD Slimline CD Teac CD224EB
Floppy Slimline Floppy Sony MPF 720-3
Table 10: Loaded System Power Draw
Voltage Rail
Current
(Measured)
Power (W)
+3.3V 4.1A 13.53 W
+5V 6.7A 33.5 W
-5V 0.1A 0.5 W
+12V 1.3A 15.6 W
-12V 0.1A 1.2 W
+5VSB 0.1A 0.5 W
Total 64.83 W
2.2.4 System Cooling
Nine 40mm fans provide cooling for the system. Two of the nine fans are dedicated to cooling the
power supply. Six of the fans provide cooling for the processor, memory, and serverboard. One
fan cools the full-length PCI slot (this last fan is 40mm x 17mm and is a bit thinner than the other
40mm x 28mm fans). A two-speed control circuit powers the fans and is located on the SCSI
backplane. The control circuit is driven by a sensor that is located on the front panel to monitor
the incoming air temperature. The fans have a tachometer output that can be sampled through the
ServerWorks
®
ServerSet
™
III LE chipset. The fans can be replaced by removing the top cover,
unplugging the fan connector from the serverboard, lifting the fan out of the fan bracket, and then
inserting the new fan. Additionally, a baffle will be added to help keep the processors and the
memory cool. You should always replace the baffle in the system when you are through working
on the system.
- SRMK2 Internet Server 1
- Revision History 2
- !! NOTE 3
- CAUTION 3
- WARNING 3
- Contents 5
- Conventions and Terminology 10
- 1 Introduction 11
- 2 Chassis Description 13
- 2.1.3 Front View of Chassis 14
- 2.1.4 Rear View of Chassis 15
- 2.2.1 AC Power Supply 15
- 2.2.1.3 AC Power Line 16
- Wire lengths should vary to 18
- 2.2.2 DC Power Supply 19
- 2.2.3 BTU information 19
- 2.2.4 System Cooling 20
- Cable Purpose 21
- Description 21
- Figure 9: Internal cables 22
- 2.3 System Configuration 23
- 3.1 Overview 24
- 3.2 Serverboard Layout 25
- !! NOTE 27
- 3.4 Chipset 28
- 3.5 Memory 30
- 3.6 SCSI Host bus Interface 31
- 3.7 IDE Interface 31
- 3.8 USB 31
- 3.9 I/O Controller 32
- 3.12 Hardware Monitor 34
- 3.14 Speaker 35
- 3.15 Fan Support 36
- 3.16 Baseboard Programming 36
- 3.16.3 SMI and NMI Routing 37
- 3.17.2 Midboard Connectors 41
- Pin Signal Name 42
- 3.20 DC Voltage Regulation 53
- 4 PCI Riser Board 54
- PIRQA INTA 55
- PIRQB INTB 55
- PIRQC INTC 55
- PIRQD INTD 55
- Figure 20: PCI riser board 56
- 5 Front Panel Board 57
- LED Description 58
- 6 SCSI Backplane 59
- 7 BIOS Description 61
- 7.2.1 Configuration Utility 62
- 7.3 System BIOS 63
- 7.3.1.7 Boot Splash Screen 67
- 7.3.2 Performance Features 67
- Name Description Default 67
- 7.3.2.2 Cache State on Boot 68
- 7.3.3 Reliability Features 69
- 7.3.3.4 ECC and SMI Support 70
- 7.3.4 System Services 71
- 7.3.4.1 New Cache Services 72
- 7.3.4.2 Get Version Info 73
- Returns Description 73
- 7.3.4.3 Processor Info 74
- 7.3.5 Boot Options 74
- 7.3.5.1 Quiet Boot 74
- 7.3.5.2 PXE Boot 74
- 7.3.6 OEM Customization 75
- offset 21h is 75
- Bit Definition 78
- 7.3.7 SMBIOS Support 78
- 7.3.8 Soft Power Switch 79
- 7.3.10 ACPI Support 80
- 7.4.1 LAN Alerts 81
- 7.4.2 WatchDog Timer (WDT) 81
- 7.4.3 Paging Support 82
- 9.1 Error Sources and Types 84
- 9.2 Error Handlers 84
- 9.3 ISA Bus Error 85
- 9.3.2 Processor Bus Error 86
- 9.3.3 Memory Bus Error 87
- 9.3.4 System Limit Error 87
- 9.3.5 Processor Failure 87
- Error Message Description 88
- 10 BIOS Setup Program 90
- 10.2 Main Menu 91
- 10.1 Maintenance Menu 91
- 10.3 Advanced Menu 92
- 10.4 Security Menu 93
- 10.5 Boot Menu 93
- 10.6 System Management Menu 94
- 10.7 Exit Menu 96
- 11 Certification 97
- 11.3.1 Japan 98
- 11.3.2 Canada 98
- 11.3.4 Taiwan (BSMI) 99
- 11.4.1 Japan 99
- 11.4.2 Canada 99
- 11.5.1 SRMK2D 100
- 11.5.2 Taiwan (BSMI) 100
- Declarations 101
- 11.7 Environmental Limits 101
- 12.1 Reliability 102
- 12.2 Serviceability 102
- 13 Compatibility Testing 103
- 14.1 Online Support 104
- 14.2 Specifications 104
- Appendix A 107
- CMOS/NVRAM commands 108
- >PutPagerNum 918005991234 111
- Password commands 112
- Help command 112
- Security 113
- Figure 28: Password prompt 114
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