Computer Hardware User Manual
Table6.Systemboardjumpers(continued)
JumpernumberJumpernameJumpersetting
Notes:
1.Ifnojumperispresent,theserverrespondsasifthepinsaresetto1and2.
2.ChangingthepositionoftheUEFIbootrecoveryjumperfrompins1and2topins2and3beforetheserveris
turnedonalterswhichashROMpageisloaded.Donotchangethejumperpinpositionaftertheserveris
turnedon.Thiscancauseanunpredictableproblem.
Important:
1.Beforeyouchangeanyswitchsettingsormoveanyjumpers,turnofftheserver;then,disconnectall
powercordsandexternalcables.Reviewtheinformationin“Guidelinesfortrainedservicetechnicians”
onpage115,“Handlingstatic-sensitivedevices”onpage117,and“Turningofftheserver”onpage113.
2.Anysystem-boardswitchorjumperblocksthatarenotshownintheillustrationsinthisdocument
arereserved.
System-boardLEDs
Thefollowingillustrationshowsthelight-emittingdiodes(LEDs)onthesystemboard.
Heatsink
Orientation
DIMMs
DIMMs
1
Fan5errorLED
9
PCIExpressslot2errorLED
2
Fan4errorLED
10
PCIExpressslot1errorLED
3
H8HeartbeatLED
11
MicroprocessorerrorLED
4
Fan3errorLED
12
BatteryerrorLED
5
Fan2errorLED
13
StandbypowerLED
6
Fan1errorLED
14
SystemboarderrorLED
112HardwareMaintenanceManual