... | @@ -185,24 +185,27 @@ Slots 9-15: |
... | @@ -185,24 +185,27 @@ Slots 9-15: |
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</tbody>
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</tbody>
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</table>
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</table>
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*Conclusions**
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### Conclusions
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\- Cards in the middle slots (8-10) are the worst (25 degC difference
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\- Cards in the middle slots (8-10) are the worst (25 degC difference
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over slots 7 and 12). Uneven air flow in the crate?
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over slots 7 and 12). Uneven air flow in the crate?
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\- FMC1 is approximately 8-10 degrees cooler than FMC2 - FMC1 is closer
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\- FMC1 is approximately 8-10 degrees cooler than FMC2. FMC1 is closer
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to the fans and obstructs the air flow to FMC2.
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to the fans and obstructs air flow to FMC2.
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\- Large temperature spans in VME crates suggest uneven air flow between
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\- Large temperature spans in VME crates suggest uneven air flow between
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different slots.
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different slots.
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\- Keeping the fans speed at a maximum (Wiener) results with reasonable
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\- Keeping the fans speed at a maximum (Wiener) results with reasonable
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cooling
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cooling (worst temperature: 59).
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\- On Elma 6U and Kontron PC platforms, the temperatures are
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\- On Elma 6U and Kontron PC platforms, the temperatures are
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unacceptable and exceed the components rating (-40 ... +85). Heatsink in
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unacceptable and exceed the components rating (-40 ... +85). Heatsink is
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needed.
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needed.
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## Thermal camera measurements
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## Thermal imaging
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tbc
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h2. Thermal camera measurements
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... | | ... | |