Supermicro P4SGA+ User Manual Page 87
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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SUPER P4SGA/P4SGL/P4SGR/P4SGE User’s Manual
B-2
POST (hex) Description
0Fh Reserved
10h Auto detect flash type to load appropriate flash R/W codes into the
run time area in F000 for ESCD & DMI support.
11h Reserved
12h Use walking 1’s algorithm to check out interface in CMOS
circuitry. Also set real-time clock power status, and then check for
override.
13h Reserved
14h Program chipset default values into chipset. Chipset default
values are MODBINable by OEM customers.
15h Reserved
16h Initial Early_Init_Onboard_Generator switch.
17h Reserved
18h Detect CPU information including brand, SMI type (Cyrix or
Intel) and CPU level (586 or 686).
19h Reserved
1Ah Reserved
1Bh Initial interrupts vector table. If no special specified, all H/W
interrupts are directed to SPURIOUS_INT_HDLR & S/W
interrupts to SPURIOUS_soft_HDLR.
1Ch Reserved
1Dh Initial EARLY_PM_INIT switch.
1Eh Reserved
1Fh Load keyboard matrix (notebook platform)
20h Reserved
21h HPM initialization (notebook platform)
22h Reserved
23h 1. Check validity of RTC value:
e.g. a value of 5Ah is an invalid value for RTC minute.
2. Load CMOS settings into BIOS stack. If CMOS checksum fails, use default
value instead.
3. Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take into
consideration of the ESCD’s legacy information.
4. Onboard clock generator initialization. Disable respective clock resource to
empty PCI & DIMM slots.
5. Early PCI initialization:
-Enumerate PCI bus number
-Assign memory & I/O resource
-Search for a valid VGA device & VGA BIOS, and put it
into C000:0.
24h Reserved
25h Reserved
26h Reserved
27h Initialize INT 09 buffer
28h Reserved
29h
Program CPU internal MTRR (P6 & PII) for 0-640K memory address.
Initialize the APIC for Pentium class CPU.
Program early chipset according to CMOS setup. Example: onboard IDE
controller.
Measure CPU speed.
Invoke video BIOS.
2Ah Reserved
2Bh Reserved
2Ch Reserved
- SUPER 1
- Please Note: For the 2
- About This Manual 3
- Manual Organization 3
- Table of Contents 4
- Chapter 3: Troubleshooting 5
- Chapter 4: AwardBIOS 6
- Appendices: 6
- Chapter 1 7
- Introduction 7
- Contacting Supermicro 8
- Chapter 1: Introduction 9
- SUPER P4SGA/P4SGL 10
- SUPER P4SGR/P4SGE 11
- SUPER P4SGA 12
- P4SGA/P4SGL Quick Reference 13
- SUPER P4SGR 14
- P4SGR/P4SGE Quick Reference 15
- DDR SDRAM 16
- PCI Slots 16
- Pentium 4 Processor 16
- (PGA 478) 16
- Motherboard Features 17
- 1-2 Chipset Overview 19
- 1-3 PC Health Monitoring 20
- Wake-On-Ring Header 22
- Wake-On-LAN (WOL) 22
- 1-5 Power Supply 23
- 1-6 Super I/O 24
- Chapter 2 25
- Installation 25
- Processor 28
- 2-4 Installing DDR Memory 29
- Front Control Panel 31
- 2-6 Connecting Cables 32
- Reset Connector 33
- PW_ON Connector 33
- CD Header (P4SGA/SGL) 35
- Overheat LED (JOH1) 35
- Chassis Intrusion 35
- Fan Headers 35
- Wake-On-Ring 37
- Connector 38
- USB Wake-Up 39
- Watch Dog Enable/Disable 39
- Front Side Bus Speed 39
- Keyboard Wake-Up 40
- Speech Output Select 40
- (P4SGA/P4SGL) 40
- Parallel Port Connector 43
- Game Port Connector 43
- IDE Connectors 45
- 2-9 Installing Software 46
- SuperO Doctor II 47
- Voice BIOS Editor 48
- Chapter 3 49
- Troubleshooting 49
- Memory Errors 50
- Chapter 4 55
- AwardBIOS 55
- 4-2 Running Setup 56
- 4-3 Main BIOS Setup 56
- Main BIOS Setup Menu 57
- Drive A/Drive B 59
- 4-4 Advanced BIOS Setup 60
- DRAM Timing Selectable 63
- USB 2.0 Controller 67
- IDE HDD Block Mode 67
- Onboard LAN 1/2 Boot ROM 67
- Onboard FDC Controller 67
- 4-4.4 Hardware Monitors 70
- CPU L1 & L2 Cache 71
- CPU Clock Ratio 71
- CPU Clock 71
- Spread Spectrum 71
- 4-5 PCI/PnP Configurations 72
- Resources Controlled By 73
- PCI/VGA Palette Snoop 73
- Assign IRQ for VGA 73
- IDE DMA Transfer Access 73
- 4-6 Power 74
- 4-7 Boot 77
- Boot Other Device 78
- Virus Warning 78
- Boot Up Floppy Seek 78
- 4-8 Security 79
- 4-9 Exit 80
- Discard Changes 81
- Appendix A 82
- AwardBIOS POST Messages 82
- Debuggig LED Encoding 86
- Appendix C 92
- AwardBIOS Error Beep Codes 92
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