MTBF Data

MTBF Estimates for R1304RPOSHBN
Subassembly
(Server in 40C ambient air)
MTBF FIT
(hours) (flrs/10^9 hrs)
S1200V3RPO board 377,841 2,647
Power Supply - 350W NR 582,873 1,716
Cooling Fan (1-fixed fans) 490,000 2,041
Cooling Fan (2-fixed fans) 77,680 12,873
Front Panel board 8,272,282 121
HS Backplane(4x3.5") 935,180 1,069
Totals without motherboard =
56,100 17,820
Totals with motherboard =
48,800 20,467
Notes:
New Fan G63402-xxx is a new Fan, two sources: NMB and Nidec
NMB MTTF@40C:155,359 L10@40C=88,726
Nidec MTTF@40C:204,866 L10@40C=108,357
Here for system MTBF is using NMB for worst case
Server Model
R1304RPOSHBN