Lenovo System x3250 M4 - PCI Riser-Card Assembly Connectors; Installing a Memory Module

Table3.System-boardLEDs
LEDDescription
StandbypowerLED
WhenthisLEDislit,itindicatesthattheserveris
connectedtoacpower.
DIMMerrorLEDs
AmemoryDIMMhasfailedorisincorrectlyinstalled.
MicroprocessorerrorLED
Microprocessorhasfailed,ismissing,orhasbeen
incorrectlyinstalled.
System-boarderrorLEDSystem-boardCPUVRDand/orpowervoltageregulators
havefailed.
IMM2heartbeatLED
IndicatesthestatusofthebootprocessoftheIMM2.
WhentheserverisconnectedtopowerthisLEDflashes
quicklytoindicatethattheIMM2codeisloading.When
theloadingiscomplete,theLEDstopsflashingbriefly
andthenflashesslowlytoindicatethattheIMM2iffully
operationalandyoucanpressthepower-controlbutton
tostarttheserver.
RTMMheartbeatLED
power-onandpower-offsequencing.
PCIriser-cardassemblyconnectors
ThefollowingillustrationshowsthelocationsofthePCIslotsontheriser-cardassembly.
Slot 2 PCIe Gen2 x8 (8, 4, 1)
Slot 1 PCIe Gen2 x8 (4, 1)
Figure7.ConnectorsonPCIriser-cardassembly
Installingamemorymodule
Usethisinformationtoinstallamemorymodule
Thefollowingnotesdescribethetypesofdualinlinememorymodules(DIMMs)thattheserversupportsand
otherinformationthatyoumustconsiderwhenyouinstallDIMMs(see“System-boardinternalconnectors”
onpage21).
Ifyouarereplacingadrive,makesurethat:
•Theserversupportsindustry-standard,1066,1333and1600MHz,PC3-12800(single-rankordual-rank)
double-data-rate3(DDR3),registeredorunbuffered,synchronousdynamicrandom-accessmemory
Chapter2.Installingoptionaldevices25