TodownloadtheserverfirmwareupdatepackagefromtheWorldWideWeb,goto
http://www.lenovo.com/support.
Theflashmemoryoftheserverconsistsofaprimarybankandabackupbank.Youmustmaintainabootable
UEFIfirmwareimageinthebackupbank.Iftheserverfirmwareintheprimarybankbecomescorrupted,you
caneithermanuallybootthebackupbankwiththeUEFIbootbackupjumper(J13),orinthecaseofimage
corruption,thiswilloccurautomaticallywiththeAutomatedBootRecoveryfunction.
In-bandmanualrecoverymethod
Usethisinformationtorecovertheserverfirmwareandrestoretheserveroperationtotheprimarybank.
Torecovertheserverfirmwareandrestoretheserveroperationtotheprimarybank,completethefollowing
steps:
Step1.Readthesafetyinformationthatbeginson“Safety”onpagevand“Installationguidelines”on
page116.
Step2.Turnofftheserver,anddisconnectallpowercordsandexternalcables.
Step3.Removethecover(see“Removingthecover”onpage119).
Step4.LocatetheUEFIbootbackupjumper(J13)onthesystemboard.
UEFI boot backup
jumper (J13)
System TPM physical
presence switch (SW11)
Clear CMOS jumper (J11)
NMI button
1
2
SW3 switch
block
On
Off
48 3
7
26 1
5
3
2
1
1
2
3
On
Off
Figure33.UEFIbootbackupjumper(J13)location
Step5.MovetheUEFIbootbackupjumper(J13)frompins1and2topins2and3toenabletheUEFI
recoverymode.
Step6.Reinstalltheservercover;then,reconnectallpowercords.
Step7.Restarttheserver.Thesystembeginsthepower-onself-test(POST).
Step8.Boottheservertoanoperatingsystemthatissupportedbythefirmwareupdatepackagethat
youdownloaded.
92LenovoSystemx3550M5InstallationandServiceGuide