Figure 7. R/T/U/Cyhx Temperature Measurement Locations - Seagate Elite 9 Product Manual

22
To confirm that required cooling for the Elite electronics and HDA is provided,
place the drive in its final mechanical configuration, perform random write/
read operations; and after the temperatures stabilize, measure the case
temperature of the components listed below.
Maximum allowable operating temperatures are listed in the last column.
Operation above these values may adversely affect the drive's ability to
meet functional specifications.
Air-flow cooling
Card Component
R/T/U/CYHX Transmitter
R/T/U/CYHX Writer
R/T/U/CYHX VIC2
R/T/U/CYHX VOLT MON
R/T/U/CYHX DRAM
The air-flow pattern with which the temperature guidelines above were
generated is shown in Figure 6. Local average air velocity was 200 lfpm and
inlet air temperature to the drive was 30°C (86°F).
The maximum allowable HDA case temperature is 55°C.
J4A
U3
U1
J06
J15
U12
J4B
J17

Figure 7. R/T/U/CYHX temperature measurement locations

Elite 9 Product Manual, Rev. C
Reference case temperature (°C)
U5
U35
U20
U56
U3
J18
U2
U14
U5
U20
U4
U33
U10 U13
J12
MTBF
500k hours
45
46
44
43
41
U56
J23
U23 U28
U28
U34
U58
U35
J30