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High-End SHB Express System Host Board Featuring Two, Dual-Core Intel Xeon Processors
Dual-Core Intel¢ç Xeon¢ç Processor LV 2.0GHz and the Intel¢ç E7520 chipset
Four processor execution cores per ELK-SHB6515
Advanced power management enables superior processor performance per watt and a passive heat sink cooling solution
Compatible with the SHB Express¢â (PICMG¢ç 1.3) specification
Supports dual channel DDR2-400 memory, 8GB maximum
Dual Gigabit Ethernet, dual Serial ATA/150 and dual USB 2.0 ports
Supports PCI Express, PCI-X and PCI option cards
ASAN ST 's ELK-SHB6515 series system host board (SHB) features two, dual-core processors that together provide four execution cores per ELK-SHB6515. The ELK-SHB6515's two Dual-Core Intel¢ç Xeon¢ç Processor LV 2.0GHz CPUs deliver superior processing capability and system performance using about half as much power as compared to previous generations of low voltage Intel Xeon processors. These 32-bit dual-core processors support 36-bit memory addressing and Demand Based Switching. The ELK-SHB6515 is a server-class PICMG¢ç 1.3 SHB that supports one x4 and two x8 PCI Express links to a PICMG 1.3 backplane. An additional x4 PCIe link to a backplane is available using Trenton's IOB31 expansion module. These links support PCI Express, PCI and PCI-X option cards on a PICMG 1.3 server-class backplane.
Processor Dual-Core Intel¢ç Xeon¢ç Processor LV 1.66GHz to 2.0GHz*
Processor Package: Micro-FCPGA (478-pin)
*higher speeds as available
PCI Express¢â Configuration and Bus Speed PCI Express: Two x8 links, one x4 link
Edge Connector A & B: Five reference clocks
PCI Express - (on-board only): One x4 link
PCI-X (on-board only): 64-bit/66MHz
PCI (on-board only): 32-bit/33MHz
Hub Link 1.5: 266MB/s
System or FSB: 667MHz
Chipset ELK-SHB6515 series uses the Intel¢ç E7520 chipset featuring Symmetric Multiprocessing Protocol for two processors operating on the 667Mz system bus and a dual channel DDR2-400 memory interface. Three x8 PCI Express interfaces are supported by the SLT's chipset. See the PCI Express Interfaces section for details on how the ELK-SHB6515 implements PCI Express. The Intel¢ç E6300ESB I/O Controller Hub supports theELK-SHB6515's dual Serial ATA/150 ports, four USB 2.0 interfaces, dual Ultra ATA/100 interfaces and the video and Ethernet controllers. The I/O Controller Hub's LPC interface is routed to the board's controlled impedance connector and supports an optional I/O expansion board (IOB30) for legacy I/O and serial port communications. The optional IOB31 expansion board supports legacy I/O via header connectors and provides an additional x4 PCI Express link to a PICMG 1.3 backplane. Communications between the Intel¢ç E7520 Memory Controller Hub and the I/O Controller Hub occurs over a 266MB/s Hub Interface.
BIOS (Flash) TheELK-SHB6515 uses AMIBIOS8¢ç. The flash BIOS resides in the 82802AC Firmware Hub (FWH). AMIBIOS8 contains features such as:
- Support for flash devices for BIOS upgrading via floppy interface
- Integrated support for USB mass storage devices such as USB CD-ROM, CD-RW, etc.
- Boot from network, USB mass storage devices, IDE or ATAPI
- Serial port console redirection to support headless operation (requires optional IOB30)
- SATA/ATA/ATAPI support includes 48-bit LBA addressing to support SATA/ATA/IDE hard drive capacities over 137GB
Dual Ethernet Interfaces - 10/100/1000Base-T The ELK-SHB6515's Gigabit Ethernet Controller (Intel¢ç 82546EB) connects to the I/O Controller Hub via a PCI-X 64-bit/66MHz interface to provide high-speed 10/100/1000Base-T Ethernet interfaces on LAN ports 1 and 2. RJ-45 connectors, located on the I/O bracket, provide the physical interface to the Ethernet network.
Dual Serial ATA/150 Ports The primary and secondary Serial ATA (SATA) ports on the ELK-SHB6515 boards comply with the SATA 1.0 specification and support two independent SATA storage devices such as hard disks and CD-RW devices. SATA technology provides lower pin counts, reduced signaling voltages, simplified cabling, CRC error detection and hot-plug support. SATA produces higher performance interfacing by providing data transfer rates up to 150MB per second on each port.
Cache Memory
(L2 and L1)
The Dual-Core Intel¢ç Xeon¢ç Processor LV 2.0GHz has a level two (L2) cache memory that is an integrated on-die Advanced Transfer Cache memory and is 8-way set associative with ECC to run at the full processor core frequency. The L2 cache memory size of 2MB is shared by the two processor cores.
DDR2-400 Memory
The four DIMM sockets on the ELK-SHB6515 support a total memory capacity of 8GB and the DDR2 memory interface can operate as either a single-channel or dual-channel interface. The theoretical maximum memory bandwidth for single-channel operation is 3.2GB/s and 6.4GB/s for dual-channel mode. Each of the channels (A and B) terminates in two dual in-line memory module (DIMM) sockets. The System BIOS automatically detects memory type, size and speed. The memory modules used on the ELK-SHB6515 must be PC2-3200 compliant. The ELK-SHB6515 supports a DDR2-400 memory interface speed. Modules with a faster memory speed may be used; however, they will be automatically clocked down to the DDR2-400 memory interface speed by the System BIOS and the SHB's memory interface components.
DDR2-400 Memory DIMM Slot Population
DDR2-400 memory modules are available as either single rank or dual rank DIMMs. A rank refers to the 72-bit unit of devices or DRAM chips that make up the PC2-3200 ECC registered 240-pin DDR2-400 DIMM. Single or dual rank memory modules must be placed in the ELK-SHB6515's DIMM sockets using prescribed population rules to ensure proper memory interface operation and performance. The following table explains the DDR2-400 DIMM population rules:
Ultra XGA Video Interface
The ELK-SHB6515 is equipped with the third generation ATI¢ç RAGE¢â MOBILITY¢â M1 video controller. The M1 enables 2D/3D video acceleration and provides 8MB of integrated video memory. In 2D mode the video controller supports pixel resolutions up to 1600 x 1200, and in 3D mode the maximum resolution provided is 1280 x 1024. The maximum color depth supported at these extremes is 16.7 million colors. Software drivers are available for popular operating systems.
IOB30 Expansion Board (Optional)

These optional boards provide legacy I/O connections via the Super I/O controller (LPC47B272). The I/O controller on an IOB30/31 connects to the ELK-SHB6515's LPC Bus via the board's controlled impedance connector. The following I/O interfaces are supported by the ELK-SHB6515 via either the IOB30 or IOB31:
-Serial Interface: The Super I/O controller supports two full-function serial ports with independently programmable baud rates. The controller has two high-speed, NS16C550 compatible UARTs with Send/Receive 16-byte FIFOs. The IRQ for each serial port has BIOS selectable addressing.
-Floppy Drive Interface: The IOB30/IOB31 supports up to two floppy disk drives in combinations of 360K to 2.88MB.
-Keyboard and PS/2 Mouse Interface: The mini DIN connector located on the I/O bracket provides an external interface for a PS/2 mouse and keyboard. A "Y" adapter plugged into the mini DIN connector allows the PS/2 mouse and keyboard to share the same port. Internal PS/2 mouse and keyboard headers are also available. A self- resetting fuse protects the +5V line of the keyboard and the mouse.
-Parallel interface: The parallel port interface is compatible with IBM PC/XT¢ç, PC/AT¢ç, PS/2TM, Enhanced Parallel Port (EPP1.7, EPP1.9) and Extended Capabilities Port (ECP) modes of operation. Both the EPP and ECP modes are IEEE 1284 compliant. The parallel port has BIOS selectable addressing.
* Operating systems exhibit certain boot-up behaviors in regards to the handling of keyboard controller functions that may necessitate the addition of either the IOB30 or IOB31 to the ELK-SHB6515.
The operating systems that ASAN ST has tested that do not require the IOB30 or IOB31 are:
- Microsoft¢ç Windows¢ç 2000, Microsoft¢ç Windows¢ç XP (using Service Packs 1, 1A or 2), Microsoft¢ç Windows¢ç 2003 Server and Microsoft¢ç Windows¢ç NT 4.0.
The operating systems that ASAN ST has tested that require either the IOB30 or IOB31 in order to provide required PS/2 keyboard functions are:
- RedHat Linux 9., Fedora Linux 9.0, SUSE Linux 9.0, SCO ODT 5.05, Unixware¢ç 7.11, and Sun¢ç Solaris¢â 9.0.

IOB31 Expansion Board (Optional) The IOB31 supports all of the same I/O functions as the IOB30 using cable header connectors. There is no I/O plate on the IOB31. The IOB31 also provides a x4 PCI Express edge connector designed to fit into a PCI Express expansion slot on a PICMG 1.3 backplane. When used on the ELK-SHB6515 system host board, the IOB31 provides an extra x4 PCI Express link to the backplane.
Battery Built-in lithium battery for data retention of CMOS memory.
Quad USB Interface The ELK-SHB6515 supports four high-speed USB 2.0 ports for data transfers up to 480Mbit/sec. It also supports USB 1.1 devices for data transfers at 12 or 1.5Mbit/sec. Two USB 2.0 interface ports are located on the ELK-SHB6515's I/O bracket. Two additional USB 2.0 headers are available on the SHB. The ELK-SHB6515 supports the optional routing of two of the USB 2.0 interfaces to an SHB Express backplane. Contact ASAN ST if your application requires this feature.
Watchdog timer The programmable watchdog timer is supported directly by the I/O Controller Hub. Two operating modes, free-running and one-shot, are available with this two-stage watchdog timer. Stage one can generate IRQ, SMI or SCI, and stage two generates a programable watchdog timer reset with a total range of 1ms to 10 minutes.
PCI Express
Interfaces
ELK-SHB6515 system host board provides two x8 PCI Express links, one x4 PCI Express link and five PCI Express reference clocks routed to edge connectors A and B. These PCI Express links are used on SHB Express¢â backplanes to support PCI Express option cards and bridge chips that provide PCI/PCI-X option card support. During system initialization the SLT automatically negotiates with the devices connected to the PCI Express links in order to set up communication between these devices. The net result is that the ELK-SHB6515 system host board supports communication to x1, x4, x8, x16 PCI Express boards and PCI Express switch chips as well as PCI/PCI-X cards via PCI Express-to-PCI/PCI-X bridge technology on the backplane.
Standards PCI Express Base Specification 1.0a
SHB Express¢â System Host Board PCI Express specification
PCI Industrial Computer Manufacturers Group (PICMG¢ç) 1.3
Power Requirements Typical Values - 100% Stressed via MS Windows HCT's System Stress
CPU +5V +12V +3.3V
1.66GHz 3.00A 3.20A 3.25A
2.0GHz 3.00A 4.20A 3.25A
-12V @ <100mA
Typical Values - System Idling In Windows XP Desktop
CPU +5V +12V +3.3V
1.66GHz 3.00A 1.70A 3.00A
2.0GHz 3.00A 2.10A 3.00A
-12V @ <100mA
Environments
Operating Temperature :0¡Æ to 55¡ÆC, Storage Temperature : -20¡Æ to 70¡ÆC.
Humidity :5% to 90% non-condensing
The Dual-Core Intel¢ç Xeon¢ç LV 2.0GHz processors used on the ELK-SHB6515 have a Thermal Design Power (TDP) rating of 31Watts. The processor's low TDP rating enables the ELK-SHB6515's passive cooling solution.
Mechanical Passive Cooling The ELK-SHB6515 has a board stack-up height of .76" (1.93cm) with the SHB's passive heat sink cooling solution. Airflow of at least 350LFM must always be present across the SHB's passive heat sink. The ELK-SHB6515's overall dimensions are 13.3" L (33.78cm) x 4.976" H (12.64cm) x .76" W (1.93cm).
ACTIVE COOLING TheELK-SHB6515's optional active cooling solution has a cooling fan mounted on each CPU's passive heat sink resulting in a board stack-up height of 2.3" (5.84cm). Order the ELK-SHB6515 with active cooling when 350LFM or more of airflow is not available for the processors
Note: The PICMG 1.3 board height specification is approximately .176" (4.47mm) taller than the PICMG 1.0 specification. However, relative PICMG 1.3 board height off the backplane is the same due to the shorter edge connectors of a PICMG 1.3 system host board and the shorter PCI Express connectors on a PICMG 1.3 backplane.
Agency Approvals & Industry Compliance
Designed for UL60950, CAN/CSA C22.2 No. 60950-00, EN55022:1998 Class B, EN61000-4-2:1995, EN61000-4-3:1997, EN61000-4-4:1995, EN61000-4-5:1995, EN61000-4-6:1996, EN61000-4-11:1994
MTBF TBD POH (Power-On Hours) at 40 ¡ÆC., per Bellcore.
ELK-SHB6515-106 SHB Express System Host Board with Dual-Core Intel¢ç Xeon¢ç processor LV 2.0GHz
ELK-SHB6515-104 SHB Express System Host Board with Dual-Core Intel¢ç Xeon¢ç processor LV 1.66GHz
All specifications within this document are subject to change without notice.