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Bootblock Recovery Code Checkpoints, Table 4-2.

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Table 4-2. Checkpoint D5 D6 D7 D8 D9 DA DC E1-E8 ECEE Description Bootblock code is copied from ROM to lower system memory and control is given to it. BIOS now executes out of RAM. Copies compressed boot block code to memory in right segments. Copies BIOS from ROM to RAM for faster access. Performs main BIOS checksum and updates recovery status accordingly. Both key sequence and OEM specific method is checked to determine if BIOSrecovery is forced. Main BIOS checksum is tested. If BIOS recovery is necessary,control flows to checkpoint E0. See Bootblock Recovery Code Checkpoints sectionfor more information. Restore CPUID value back into register. The Bootblock-Runtime interface module is moved to system memory and control is given to it. Determine whether to execute serial flash. The Runtime module is uncompressed into memory. CPUID information is stored in memory. Store the Uncompressed pointer for future use in PMM. Copying Main BIOS into memory. Leaves all RAM below 1MB Read-Write including E000 and F000 shadow areas but closing SMRAM. Restore CPUID value back into register. Give control to BIOS POST (ExecutePOSTKernel).See POST Code Checkpoints section of document for more information. System is waking from ACPI S3 state. OEM memory detection/configuration error. This range is reserved for chipset vendors & system manufacturers. The error associated with this value may be different from one platform to the next. Bootblock Recovery Code Checkpoints 0 The Bootblock recovery code gets control when the BIOS determines that a BIOS recovery needs to occur because the user has forced the update or the BIOS checksum is corrupt. The following table describes the type of checkpoints that may occur during the Bootblock recovery portion of the BIOS. NOTE: NOTE: Checkpoints may differ between different platforms based on system configuration. Checkpoints may change due to vendor requirements, system chipset or option ROMs from add-in PCI devices Troubleshooting 4-7

Section	Page
CHAPTER 1	5
Hardware Specifications	5
Chassis Specification 1-7	5
Motherboard Specification 1-10	5
CHAPTER 2	5
System Utilities	5
CHAPTER 3	5
System Disassembly and Assembly	5
CHAPTER 4	6
Troubleshooting	7
CHAPTER 5	7
Jumper and Connector Locations	7
CHAPTER 6	7
FRU List	7
AZ5770/AZ5771 Exploded Diagrams 6-4	7
FRU List 6-7	7
CHAPTER 1	9
Hardware Specifications	9
Chassis Specification 1-8	10
Motherboard Specification 1-11	10
Features	11
Quick Specification	11
Chassis Specification	16
Motherboard Specification	19
System Tour	24
M/B Placement	29
Jumper Setting	30
Block Diagram	32
CHAPTER 2	33
System Utilities	33
CMOS Setup Utility	35
Entering CMOS setup	36
Navigating Through the Setup Utility	36
BIOS Setup Utility	37
AMI UEFI BIOS Flash SOP for DOS	48
Flash Scenarios	48
Flash UEFI BIOS SOP for DOS	48
AMI UEFI BIOS Flash SOP for Windows	53
AMI UEFI BIOS Flash SOP for DOS with ME	56
AMI UEFI BIOS Flash SOP for SHELL	66
DMI Tool Utilities	70
LAN EEPROM Utilities	75
CHAPTER 3	77
System Disassembly and Assembly	77
Disassembly Process 3-6	78
Remove the Stand 3-8	78
Remove the ODD Bezel 3-10	78
Remove the Rear Cabinet 3-12	78
Remove the Motherboard Shielding 3-15	78
Remove the VESA Support Bracket 3-17	78
Remove the HDD Module 3-19	78
Remove the ODD Module 3-22	78
Remove the Speaker 3-25	78
Remove the OSD Board 3-33	78
Remove the VGA Card 3-35	78
Remove the CPU 3-42	78
Remove the Motherboard 3-43	78
Remove the Front Stand Bracket 3-46	78
Remove the WLAN Antenna Cables 3-51	78
Remove the Cushion Tape 3-53	78
Remove the Thermal Pads 3-54	78
Remove the LVDS Cable 3-55	78
Remove the Base Pan 3-56	78
Remove the Camera 3-58	78
Remove the Backlight Cable 3-59	78
Remove the IR Cable 3-60	78
Remove the Front Bezel 3-61	78
Reassembly Procedure 3-62	78
Replace the Backlight Cable 3-65	78
Replace the Camera 3-66	78
Replace the LVDS Cable 3-67	78
Replace the WLAN Antenna Cables 3-68	78
Replace the OSD Board 3-70	78
Replace the CPU Blower 3-71	79
Replace the Thermal Pads 3-72	79
Replace the Cushion Tape 3-73	79
Replace the Base Pan 3-74	79
Replace the Front Stand Bracket 3-76	79
Replace the CPU 3-81	79
Replace the Memory 3-85	79
Replace the Motherboard 3-86	79
Replace the VGA Bracket 3-87	79
Replace the WLAN Card 3-88	79
Replace the VGA Card 3-90	79
Replace the Convert Board 3-92	79
Replace the ODD Module 3-96	79
Replace the HDD Module 3-99	79
Replace the Heatsink 3-103	79
Replace the Speaker 3-105	79
Replace the VESA Support Bracket 3-109	79
Connect and route the cables 3-110	79
Replace the Motherboard Shielding 3-113	79
Replace the Rear Cabinet 3-115	79
Replace the ODD Bezel 3-116	79
Replace the Stand 3-118	79
Machine Disassembly and Replacement	81
Recommended Equipment	81
Replacement Requirements	81
Disassembly Process	82
Disassembly Flowchart	83
Remove the Stand	84
Remove the ODD Bezel	86
Remove the Rear Cabinet	88
Remove the Motherboard Shielding	91
Remove the VESA Support Bracket	93
Remove the HDD Module	95
Remove the ODD Module	98
Remove the Speaker	101
Remove the Heatsink	104
Remove the CPU Blower	106
Remove the Convert Board	107
Remove the OSD Board	109
Remove the VGA Card	111
Remove the VGA Bracket	113
Remove the WLAN Card	115
Remove the Memory	117
Remove the CPU	118
Remove the Motherboard	119
Remove the Front Stand Bracket	122
Remove the WLAN Antenna Cables	127
Remove the Cushion Tape	129
Remove the Thermal Pads	130
Remove the LVDS Cable	131
Remove the Base Pan	132
Remove the Camera	134
Remove the Backlight Cable	135
Remove the IR Cable	136
Remove the Front Bezel	137
Reassembly Procedure	138
Reassembly Flowchart	138
Replace the LCD Module	139
Replace the Backlight Cable	141
Replace the Camera	142
Replace the LVDS Cable	143
Replace the WLAN Antenna Cables	144
Replace the OSD Board	146
Replace the CPU Blower	147
Replace the Thermal Pads	148
Replace the Cushion Tape	149
Replace the Base Pan	150
Replace the Front Stand Bracket	152
Replace the CPU	157
Replace the Memory	161
Replace the Motherboard	162
Replace the VGA Bracket	163
Replace the WLAN Card	164
Replace the VGA Card	166
Replace the Convert Board	168
Replace the ODD Module	172
Replace the HDD Module	175
Replace the Heatsink	179
Replace the Speaker	181
Replace the VESA Support Bracket	185
Connect and route the cables	186
Replace the Motherboard Shielding	189
Replace the Rear Cabinet	191
Replace the ODD Bezel	192
Replace the Stand	194
CHAPTER 4	195
Troubleshooting	195
Introduction	197
Hardware Diagnostic Procedure	197
System Check Procedures	197
Power System Check	197
System External Inspection	197
System Internal Inspection	198
Beep Codes	199
Checkpoints	200
BIOS Recovery	202
Calibration SOP of control board	205
Debug Card information	216
Converter board setup	217
CHAPTER 5	219
Jumper and Connector Locations	219
Jumper Setting	223
Setting Jumper	223
CHAPTER 6	225
FRU List	225
AZS600_Pt Exploded Diagrams 6-4	226
FRU List 6-7	226
AZS600_Pt Exploded Diagrams	228

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