Reference Guide

Item
Non-Volatile or
Volatile
Quantity
Reference Designator
Size
PCIE Switch board(Gen4)
EEROM
Non-Volatile
1
U14
128M bit
FRU
Non-Volatile
1
U15
128K bit
3.5” HDD BP
FRU
Non-Volatile
1
U97
2KB
CPLD A
Non-Volatile
1
U83
4K (LE)
CPLD B
Non-Volatile
1
U73
4K (LE)
MB Bridge Board
FRU
Non-Volatile
1
U2
2KB
Power Delivery Board (PDB)
Microcontroller
Non-Volatile
1
U23 (NXP)
Up to 1MB
FRU
Non-Volatile
1
U30
256Kbit
Flash
Non-Volatile
1
U10
16Mbit
FPGA
Non-Volatile
1
U25
1,88Mbit
Rover MB
PCH Internal
CMOS RAM
Non-Volatile
1
U_LBG
256 Bytes
BIOS Password (part
of PCH internal CMOS
RAM)
Non-Volatile
1
U_LBG
16 Bytes (out of 256 Bytes
used for PCH Internal
CMOS RAM)
Primary BIOS SPI
Flash
Non-Volatile
1
U_SPI_BIOS
32 MB
iDRAC SPI Flash
Non-Volatile
1
U_BMC_SPI1
4 MB
BMC eMMC
Non-Volatile
1
U_EMMC
4 GB
CPU Vcore and
Memory regulator
Non-Volatile
2
PU2, PU9
16 KB
Vmem Regulators
Non-Volatile
2
PU15, PU21
16 KB
System CPLD RAM
Volatile
1
U_CPLD
92 KB
System CPLD FLASH
Non-Volatile
1
U_CPLD
256 KB
System Memory:
RDIMM and LRDIMM
Volatile
Up to 16 per
CPU
CPU1<2:1>_CH<5:0>_D<1:0>
Up to 64 GB per DIMM
System Memory:
NVDIMMM-N
Non-Volatile
Up to 4 per
CPUs 1 and 2
(12 total in
system)
CPU1<2:1> _CH<5:0>_ D1
128 GB per NVDIMMN