Technical information

Chapter 1 15
System Management Bus (SMBus) Interface
There are one SMBus (I
2
C) on G510 system been used for reading SPDs of DIMMs, accesses the
CNB20HE_SL PCI configuration space, control the FAN and access the hardware monitor data.
RQ Assignments
There are three IO/APIC built in G510.One is ISA IO/APIC and the other two are PCI IO/APIC.
Item Target Device Address Comment
1 CPU1 MEMORY 1010100xb A8
THERMAL SNSR 1001001xb 52
2 CPU2 MEMORY 1010101xb AA
THERMAL SNSR 1001010xb 54
3 CMIC FUNCTION0 1100000xb C0
FUNCTION1
FUNCTION2
4 CIOBX2 1100100xb C8
5 CSB5 80
6 DIMM1 DIMM SPD 1010000xb A0
7 DIMM2 DIMM SPD 1010001xb A2
8 DIMM3 DIMM SPD 1010110xb AC
9 DIMM4 DIMM SPD 1010111xb AE
10
I
2
C Buffer
0011000xb 30
13 BMC
14 ADM 1026 0101100xb 58