36 SBC347A 3U VPX Single Board Computer
Publication No. 500-9300527837-000 Rev. A.0
5.1.2 8 Series Chipset (PCH)
The following features of the PCH are implemented on the SBC347A:
• Optional PCIe Gen2 x4 port
• Optional PCIe Gen2 x2 port
• SATA host controller supporting three ports at 6 Gbits/second (Gen3) (two
routed off card)
• LPC interface
• SPI interface for Boot Flash
• Advanced Programmable Interrupt Controller (APIC)
• Four USB 2.0 ports
• RTC - Mot MC146818B compatible
• Enhanced Power Management
• Serial Management Bus (SMBus) 2.0 (I
2
C)
• Integrated Clock controller
5.2 Memory
5.2.1 SDRAM
The SBC347A provides up to four banks of DDR3 SDRAM with ECC. Up to two
banks are connected to each of the memory channels within the Core i7 processor.
The following table shows supported RAM configurations:
The RAM operates at an interface speed of 1600 megatransfers/second.
NOTE
The actual RAM configuration fitted to the SBC347A may change as different RAM density devices
become available. Check with the factory for latest memory capability.
5.2.2 Boot Flash
The SBC347A has a total of three 16 MByte SPI Flash devices fitted: for
Management Engine (ME), BIOS, and built-in-test (BIT) code storage.
One device acts as the main ME/BIOS ROM device, and the processor boots from
this device by default. The second device acts as a recovery ROM and the
processor boots from this device when the P3 link jumper is fitted.
The third device holds BIT code, and is visible when the SBC347A is booting from
either Main or Recovery Flash devices.
Table 5-2 Supported RAM Configurations
Total
RAM
(GBytes)
Total
Number
of Devices
Device Density
(Gbit)
Number of
Ranks
per Controller
16
18
8 (dual-die devices) 2