Usb; Figure 2.12 System Diagram - Fujitsu PRIMEQUEST 2000 Series General Description Manual

CHAPTER 2 Hardware Configuration
2.5 SB (System board)
The outline of each component making up the SB is shown follows.
- CPU
Up to two Intel ® Xeon ® processors E7 v2 product family can be mounted. Three system buses called
Intel ® QuickPath Interconnect (QPI) are output from each CPU. Large scale configuration (SMP) with
up to 8CPUs can be made, by connecting to other CPUs. A memory controller is also mounted in CPU
and four SMI2 interfaces are output.
- Memory (Buffer (MB)
The MB is a converter chip that is connected to the CPU.
One MB is connected per the SMI2 interface, and converts SMI2 channel to dual system DDR3 channel.
A maximum of three DDR3 DIMMs can be connected to each DDR3.
A maximum of 48 DIMM is supported in one SB. A maximum of 24 DIMMs are supported in one CPU
socket.
- Memory Mezzanine
Memory Mezzanine is a memory expansion board on which two Memory Buffers and 12 DIMM slots are
mounted. Two Memory Mezzanines can be mounted for each SB.
- PCH
PCH is an LSI that controls the I/O of the legacy system and so on. It is connected to the CPU by a DMI
interface. It has a USB controller, APIC, RTC, LPC bus, and SPI bus controller. There are four USB
ports in the front as external connectors and one port as an internal connector. The USB outputs four
ports as external connectors in the front. Keyboard and mouse can be connected in the external
connector.
- BMC
BMC is an SB management LSI. It is connected to the LPC bus. It communicates with the MMB via the
BMC built-in NIC and exchanges information of the PECI bus (interface to the BIOS) and the GPIO
control.
- SPI Flash
SPI Flash is the abbreviation of the Serial Peripheral Interface Flash. It is a flash memory to store the
BIOS code (UEFI).
- TPM
TPM is a Trusted Platform Module (Option). Internally, it is connected to the LPC bus. Internally it has a
dedicated processor, and has a function to save the secret key. The TPM is used in the drive encryption
function of Windows, and the Trusted eXecution Technology (TXT) that safely boots the OS.

2.5.2 USB

The following figure is the USB system diagram.
There are four external ports and two ports for BMC (for video redirection and virtualization media), from the
PCH mounted in the SB.

FIGURE 2.12 system diagram

36 C122-B025-02EN