Server User Manual

Thedataretentiontimeforthebatterycardassemblyisasfollows:
BBUnameDataretentiontime
ThinkServer8708ELPSASRAIDAdapterBattery(iBBU05)
•72hoursfor256Mbytes,usingve32Mx16double
dataratetwodynamicrandomaccessmemory
modules(DDR2DRAMs)(lowpower)
•72hoursfor256Mbytes,usingthree64Mx16DDR2
DRAMs(lowpower)
ThinkServer8708EM2SASRAIDControllerBattery
(iBBU06)
72hoursfor256Mbytes,usingthree64Mx16DDR2
DRAMs(lowpower)
ThinkServerRAID700AdapterBattery(iBBU08)
72hoursfor512Mbytes,usingve64Mx16DDR2
DRAMs(lowpower)
Thedataretentiontimevariesaccordingtothefollowing:
•Capacityofthebatterypackandthebatteryload
•Ambienttemperature
•Ageofthebattery
•Numbersofdischargecyclesthebatteryhasbeenthrough
•DRAM(dynamicrandomaccessmemory)size
106ThinkServerUserGuide