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I/O Subsystem

UPC - 735858197397

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Functional Architecture Intel® Server Board X38ML (DIMM A1 and DIMM A2) and Channel B representing the Channel B DIMMs (DIMM B1 and DIMM B2). They are placed in a row and numbered as DIMM A1/DIMM A2/DIMM B1/DIMM B2 with DIMM A1 the closest to the MCH. Memory population rules: ƒ If dual-channel operation is desired, Channel A and Channel B must be populated identically (for example, same capacity) ƒ Use DDR2 667/800 only ƒ The speed used on all the channels is the slowest DIMM in the system ƒ Use ECC or non-ECC DIMMs ƒ User can mix different memory technologies (size and density) ƒ For single-channel mode, either channel may be used and DIMM sockets within the same channel can be populated in any order ƒ For dual-channel interleaved mode, DIMM sockets may be populated in any order as long as the total memory in each channel is the same. ƒ For dual-channel asymmetric mode, DIMM sockets may be populated in any order. 3.5 I/O Subsystem 3.5.1 PCI Express* x16 Riser Slot The server board provides a PCI Express* x16 riser slot that is resourced with a PCI Express* x16 interface from MCH and supports PCI Express* x16 graphics. 3.5.2 SATA Support The server board provides four SATA II ports by the integrated SATA controller of the Intel® ICH9-R. The SATA controller supports data transfer rates of up to 300 MB/sec and provides two modes of operation: a legacy mode using I/O space and an Advanced Host Controller Interface (AHCI) mode using memory space. 3.5.2.1 SATA RAID Intel® Embedded Server RAID Technology, available with the CH9R, supports four Serial ATA ports, providing a cost-effective way to achieve higher transfer rates and reliability. Intel® Embedded Server RAID Technology supports: ƒ RAID level 0 data striping for improved performance ƒ RAID level 1 data mirroring for improved data reliability ƒ RAID level 10 data striping and mirroring for high data transfer rates and data redundancy 16 Revision 1.3 Intel order number E15331-006

Section	Page
1. Introduction	13
1.1 Server Board Use Disclaimer	13
2. Server Board Overview	14
2.1 Server Board Feature Set	14
2.2 Server Board Layout	16
3. Functional Architecture	19
3.1 Processor Subsystem	20
3.2 Intel® X38 Chipset	20
3.2.2.1 Direct Media Interface (DMI)	21
3.2.2.2 PCI Express* Interfaces	21
3.2.2.3 Serial ATA II Interface	22
3.2.2.4 Low Pin Count Interface (LPC)	22
3.2.2.5 Compatibility Modules	22
3.2.2.6 Universal Serial Bus (USB) Controller	22
3.2.2.7 Real Time Clock (RTC)	23
3.2.2.8 GPIO	23
3.2.2.9 Enhanced Power Management	23
3.2.2.10 System Management Interface	23
3.2.2.11 Serial Peripheral Interface (SPI)	23
3.2.2.12 Manageability	24
3.3 Integrated Baseboard Management Controller	24
3.4 Memory Subsystem	27
3.5 I/O Subsystem	28
3.5.2.1 SATA RAID	28
3.5.2.2 Intel® RAID Technology Option ROM	29
3.5.6.1 Serial Ports	30
3.5.6.2 Keyboard and Mouse Support	31
3.5.6.3 Wake-up Control	31
3.6 Replacing the Back-Up Battery	31
4. System BIOS	33
4.1 BIOS Identification String	33
4.2 Logo/Diagnostic Screen	33
4.3 BIOS Setup Utility	34
4.3.1.1 Setup Page Layout	34
4.3.1.2 Entering BIOS Setup	35
4.3.1.3 Keyboard Commands	35
4.3.1.4 Menu Selection Bar	36
4.3.2.1 Main Screen	37
4.3.2.2 Advanced Screen	39
4.3.2.2.1 Processor Configuration Screen	40
4.3.2.2.2 Memory Configuration Screen	42
4.3.2.2.3 SATA Controller Configuration Screen	44
4.3.2.2.4 Serial Ports Screen	45
4.3.2.2.5 USB Configuration Screen	46
4.3.2.2.6 PCI Screen	48
4.3.2.3 Security Screen	49
4.3.2.4 Server Management Screen	51
4.3.2.4.1 Console Redirection Screen	52
4.3.2.4.2 System Information Screen	54
4.3.2.5 Boot Options Screen	55
4.3.2.5.1 Hard Disk Order Screen	56
4.3.2.5.2 CDROM Order Screen	56
4.3.2.5.3 Floppy Order Screen	57
4.3.2.5.4 Network Device Order Screen	58
4.3.2.5.5 BEV Device Order Screen	58
4.3.2.6 Boot Manager	59
4.3.2.7 Error Manager Screen	60
4.3.2.8 Exit Screen	60
4.4 Loading BIOS Defaults	62
4.5 Multiple Boot Blocks	62
4.6 Recovery Mode	63
4.7 OEM Logo	63
5. Platform Management	65
5.1 Platform Management Features	65
5.2 Power System	66
5.2.5.1 Power Button Signal	68
5.2.5.2 Chipset Sleep S4/S5	69
5.2.5.3 Power-On Enable	69
5.2.5.4 Power-down Disable	69
5.3 Advanced Configuration and Power Interface (ACPI)	70
5.4 System Reset Control	71
5.5 BMC Reset Control	72
5.6 System Initialization	72
5.6.2.1 Watchdog Timer Timeout Reason Bits	73
5.7 Integrated Front Panel User Interface	74
5.7.3.1 Chassis Intrusion	75
5.7.3.2 Power Button	75
5.7.3.3 Reset Button	75
5.8 Private Management I2C Buses	76
5.9 Watchdog Timer	76
5.10 BMC Internal Timestamp Clock	76
5.11 System Event Log (SEL)	77
5.12 Sensor Data Record (SDR) Repository	77
5.13 Field Replaceable Unit (FRU) Inventory Device	78
5.14 Sensor Rearm Behavior	79
5.15 Processor Sensors	80
5.15.1.1 ThermTrip Monitoring	80
5.15.1.2 IERR Monitoring	81
5.15.2.1 PECI Interface	81
5.16 Standard Fan Management	81
5.17 Power Unit Management	83
5.18 BMC Self Test	84
5.19 Messaging Interfaces	84
5.19.6.1 LPC/KCS Interface	85
5.19.6.2 Receive Message Queue	86
5.19.6.3 SMS/SMM Status Register	86
5.19.6.4 Server Management Software (SMS) Interface	86
5.19.6.5 SMM Interface	87
5.19.8.1 Serial-over-LAN (SOL 2.0)	88
5.20 Event Filtering and Alerting	88
5.21 Sensor Support	89
5.22 BIOS-BMC interactions	95
5.23 Platform Management Features Implemented by BIOS	95
5.23.2.1 Serial Configuration Settings	96
5.23.2.2 Keystroke Mappings	96
5.23.2.2.1 Standalone <Esc> Key for Headless Operation	96
5.23.2.3 Limitations	97
5.23.2.4 Interface to Server Management	97
5.23.3.1 Channel Access Modes	97
5.23.3.2 Interaction with BIOS Console Redirection	97
5.23.3.3 SOL, EMP and Console Redirection Use Case Model	98
5.23.4.1 PXE BIOS Support	100
5.23.6.1 Password Clear Jumper	101
6. Error Reporting and Handling	102
6.1 Fault Resilient Booting	102
6.2 Error Handling and Logging	103
6.2.2.1 PCI Bus Error	103
6.2.2.2 PCI Express* Errors	103
6.2.2.3 Processor Bus Error	104
6.2.2.4 Memory Bus Error	104
6.2.2.5 Operating System Watchdog Failure	104
6.2.2.6 Boot Event	104
6.2.3.1 Memory Error Events	105
6.2.3.2 Examples of Event Data Field Contents for Memory Errors	106
6.2.3.3 PCI Error Events	106
6.2.3.4 Examples of Event Data Field Contents for PCI Errors	107
6.2.3.5 FRB-2 Error Events	107
6.2.4.1 No Real-Time Clock (RTC) Access	108
6.3 Error Messages and Error Codes	109
7. Connectors and Jumper Blocks	116
7.1 Power Connectors	116
7.2 PCI Express* x16 Connector	116
7.3 SMBus Connector	118
7.4 Front Panel Connector	118
7.5 I/O Connectors	119
7.6 Fan Headers	122
7.7 Chassis Intrusion Header	122
7.8 Jumper Blocks	123
8. Design and Environmental Specifications	124
8.1 Server Board Design Specification	124
8.2 Product Regulatory Compliance	124
8.3 Electromagnetic Compatibility Notices	127
Glossary	128

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Functional Architecture

Intel® Server Board X38ML

Revision 1.3

Intel order number E15331-006

(DIMM A1 and DIMM A2) and Channel B representing the Channel B DIMMs (DIMM B1 and

DIMM B2). They are placed in a row and numbered as DIMM A1/DIMM A2/DIMM B1/DIMM B2

with DIMM A1 the closest to the MCH.

Memory population rules:

If dual-channel operation is desired, Channel A and Channel B must be populated

identically (for example, same capacity)

Use DDR2 667/800 only

The speed used on all the channels is the slowest DIMM in the system

Use ECC or non-ECC DIMMs

User can mix different memory technologies (size and density)

For single-channel mode, either channel may be used and DIMM sockets within the

same channel can be populated in any order

For dual-channel interleaved mode, DIMM sockets may be populated in any order as

long as the total memory in each channel is the same.

For dual-channel asymmetric mode, DIMM sockets may be populated in any order.

3.5

I/O Subsystem

3.5.1

PCI Express* x16 Riser Slot

The server board provides a PCI Express* x16 riser slot that is resourced with a PCI Express*

x16 interface from MCH and supports PCI Express* x16 graphics.

3.5.2

SATA Support

The server board provides four SATA II ports by the integrated SATA controller of the Intel

ICH9-R. The SATA controller supports data transfer rates of up to 300 MB/sec and provides two

modes of operation: a legacy mode using I/O space and an Advanced Host Controller Interface

(AHCI) mode using memory space.

3.5.2.1

SATA RAID

Intel

Embedded Server RAID Technology, available with the CH9R, supports four Serial ATA

ports, providing a cost-effective way to achieve higher transfer rates and reliability. Intel

Embedded Server RAID Technology supports:

RAID level 0 data striping for improved performance

RAID level 1 data mirroring for improved data reliability

RAID level 10 data striping and mirroring for high data transfer rates and data

redundancy