... | @@ -21,35 +21,39 @@ For those who don't want to read the rest of this page: |
... | @@ -21,35 +21,39 @@ For those who don't want to read the rest of this page: |
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found here:
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found here:
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[here](https://www.ohwr.org/project/spec/wikis/Fan_Design)
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[here](https://www.ohwr.org/project/spec/wikis/Fan_Design)
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---
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## Detailed temperature measurements on different platforms
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## Detailed temperature measurements on different platforms
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*Note:** All temperatures in degrees Celsius. All thermal tests made
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*Note:** All temperatures in degrees Celsius. All thermal tests made with PCB version EDA-02267-V5-0.
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with PCB version EDA-02267-V5-0.
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### Test environment
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### Test environment
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\- VME: Wiener and Elma crates, with up to 7 SVECs (14 Fine Delays)
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- VME: Wiener and Elma crates, with up to 7 SVECs (14 Fine Delays)
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installed in subsequent slots. Whenever possible, different
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installed in subsequent slots. Whenever possible, different
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combinations
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combinations
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of VME slots and fan speeds were used. All crates used a MEN A20
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of VME slots and fan speeds were used. All crates used a MEN A20
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controller. Ambient temp 26-28.
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controller. Ambient temp 26-28.
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\- PCI Express: Kontron industrial PC, with 5 SPECs and 5 Fine Delays.
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- PCI Express: Kontron industrial PC, with 5 SPECs and 5 Fine Delays.
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Ambient temp 19-20.
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Ambient temp 19-20.
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\- Temperatures were logged over time to make sure they have settled up
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- Temperatures were logged over time to make sure they have settled up
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before taking measurements. The first stable sample (with less than 1
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before taking measurements. The first stable sample (with less than 1
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degree temperature change over 1 minute) was used for the statistics.
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degree temperature change over 1 minute) was used for the statistics.
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\- Unused slots were covered to ensure maximum airflow through the
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- Unused slots were covered to ensure maximum airflow through the
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FMCs.
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FMCs.
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\- PXI Express: National Instruments crates with the SPEXI and a Fine
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- PXI Express: National Instruments crates with the SPEXI and a Fine
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Delay: 4-slot (PXIe-1071) at ambient temp 25C and 8-slot (PXIe-1062Q) at
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Delay: 4-slot (PXIe-1071) at ambient temp 25C and 8-slot (PXIe-1062Q) at
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ambient temp 29C with one Fine Delay in different slots.
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ambient temp 29C with one Fine Delay in different slots.
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### Data (cards without heatsinks):
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---
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## Data (cards without heatsinks):
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*Wiener 21-slot VME64x crate, slots 4-10:**
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#### Table 1: Wiener 21-slot VME64x crate, slots 4-10:
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|**Fans**|**Slot/FMC**|4/1|4/2|5/1|5/2|6/1|6/2|7/1|7/2|8/1|8/2|9/1|9/2|10/1|10/2|
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|**Fans**|**Slot/FMC**|4/1|4/2|5/1|5/2|6/1|6/2|7/1|7/2|8/1|8/2|9/1|9/2|10/1|10/2|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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... | @@ -57,41 +61,40 @@ ambient temp 29C with one Fine Delay in different slots. |
... | @@ -57,41 +61,40 @@ ambient temp 29C with one Fine Delay in different slots. |
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|Max (3600 rpm)||52.75|57.06|45.31|51.56|39.31|48.31|40.38|48.31|47.38|58.81|49.94|55.00|40.75|46.12|
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|Max (3600 rpm)||52.75|57.06|45.31|51.56|39.31|48.31|40.38|48.31|47.38|58.81|49.94|55.00|40.75|46.12|
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*Wiener 21-slot VME64x crate, slots 9-15:**
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#### Table 2: Wiener 21-slot VME64x crate, slots 9-15:
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| **Fans** | **Slot/FMC** | 9/1 | 9/2 | 10/1 | 10/2 | 11/1 | 11/2 | 12/1 | 12/2 | 13/1 | 13/2 | 14/1 | 14/2 | 15/1 | 15/2 |
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| **Fans** | **Slot/FMC** | 9/1 | 9/2 | 10/1 | 10/2 | 11/1 | 11/2 | 12/1 | 12/2 | 13/1 | 13/2 | 14/1 | 14/2 | 15/1 | 15/2 |
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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| Min (1200 rpm) | **Temp** | 62.00 | 71.12 | 60.19 | 74.31 | 61.25 |73.75 | 51.94 | 65.12 | 48.75 | 60.88 | 51.31 | 62.75 | 52.12 | 64.06 |
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| Min (1200 rpm) | **Temp** | 62.00 | 71.12 | 60.19 | 74.31 | 61.25 |73.75 | 51.94 | 65.12 | 48.75 | 60.88 | 51.31 | 62.75 | 52.12 | 64.06 |
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| Max (3600 rpm) | | 49.44 | 55.00 | 48.81 | 56.50 | 49.88 | 55.00 | 41.44 | 50.88 | 40.69 | 50.12 | 41.31 | 48.12 | 42.75 | 49.00 |
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| Max (3600 rpm) | | 49.44 | 55.00 | 48.81 | 56.50 | 49.88 | 55.00 | 41.44 | 50.88 | 40.69 | 50.12 | 41.31 | 48.12 | 42.75 | 49.00 |
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*Elma 18-slot VME64x crate, default fan configuration:**
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#### Table 3: Elma 18-slot VME64x crate, default fan configuration:
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Slots 4-10:
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Table 3a: Slots 4-10:
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|**Slot/FMC**|4/1|4/2|5/1|5/2|6/1|6/2|7/1|7/2|8/1|8/2|9/1|9/2|10/1|10/2|
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|**Slot/FMC**|4/1|4/2|5/1|5/2|6/1|6/2|7/1|7/2|8/1|8/2|9/1|9/2|10/1|10/2|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|**Temp**|57.44|62.56|49.75|59.06|44.50|53.88|46.00|56.38|62.00|70.94|66.44|73.69|46.69|56.31|
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|**Temp**|57.44|62.56|49.75|59.06|44.50|53.88|46.00|56.38|62.00|70.94|66.44|73.69|46.69|56.31|
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Slots 9-15:
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Table 3b: Slots 9-15:
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|**Slot/FMC**|9/1|9/2|10/1|10/2|11/1|11/2|12/1|12/2|13/1|13/2|14/1|14/2|15/2|
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|**Slot/FMC**|9/1|9/2|10/1|10/2|11/1|11/2|12/1|12/2|13/1|13/2|14/1|14/2|15/2|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|**Temp**|66.00|72.06|66.88|73.56|57.38|65.44|46.94|59.88|45.31|56.31|50.56|60.06|59.31|
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|**Temp**|66.00|72.06|66.88|73.56|57.38|65.44|46.94|59.88|45.31|56.31|50.56|60.06|59.31|
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*Elma 6-slot VME64x crate, default fan configuration:**
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#### Table 4: Elma 6-slot VME64x crate, default fan configuration:
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|**Fans**|**Slot/FMC**|2/1|2/2|3/1|3/2|4/1|4/2|5/1|5/2|6/1|6/2|
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|**Fans**|**Slot/FMC**|2/1|2/2|3/1|3/2|4/1|4/2|5/1|5/2|6/1|6/2|
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|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|
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|Auto|**Temp**|77.69|72.38|77.31|69.75|66.88|60.12|82.06|74.31|90.00|83.19|
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|Auto|**Temp**|77.69|72.38|77.31|69.75|66.88|60.12|82.06|74.31|90.00|83.19|
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|Max (3600 rpm)||67.38|62.81|66.50|62.62|58.25|52.06|70.56|64.06|80.94|73.44|
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|Max (3600 rpm)||67.38|62.81|66.50|62.62|58.25|52.06|70.56|64.06|80.94|73.44|
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Note: slot 6 has a much higher temperature than the other slots. One may
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Note: slot 6 has a much higher temperature than the other slots. One may
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need to recommend to not use slot 6.
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need to recommend to not use slot 6.
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*Elma 2-slot VME64x crate**
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#### Table 5: Elma 2-slot VME64x crate
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|**Fans**|**Slot/FMC**|2/1|2/2|
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|**Fans**|**Slot/FMC**|2/1|2/2|
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|----|----|----|----|
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|----|----|----|----|
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... | @@ -99,21 +102,21 @@ need to recommend to not use slot 6. |
... | @@ -99,21 +102,21 @@ need to recommend to not use slot 6. |
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|Max (3600 rpm)||63.50|67.50|
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|Max (3600 rpm)||63.50|67.50|
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*Kontron KISS 6U industrial PC**
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#### Table 6: Kontron KISS 6U industrial PC
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|**Slot**|1|2|3|7|8|
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|**Slot**|1|2|3|7|8|
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|----|----|----|----|----|----|
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|----|----|----|----|----|----|
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|**Temp**|89.25|92.56|98.75|88.56|79.50|
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|**Temp**|89.25|92.56|98.75|88.56|79.50|
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*National Instruments 4-slot PXIe crate PXIe-1071**
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#### Table 7: National Instruments 4-slot PXIe crate PXIe-1071
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| **Fans** | **Slot/FMC** | 2 | 3 | 4 |
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| **Fans** | **Slot/FMC** | 2 | 3 | 4 |
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|----|----|----|----|----|
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|----|----|----|----|----|
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| Auto | **Temp** | 57.2 | 55.5 | 55.2 |
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| Auto | **Temp** | 57.2 | 55.5 | 55.2 |
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| Max | | 48.7 | 47.9 | 46.82 |
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| Max | | 48.7 | 47.9 | 46.82 |
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*National Instruments 8-slot PXIe crate PXIe-1062Q**
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#### Table 8: National Instruments 8-slot PXIe crate PXIe-1062Q
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| **Fans** | **Slot/FMC** | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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| **Fans** | **Slot/FMC** | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|
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... | @@ -123,15 +126,16 @@ need to recommend to not use slot 6. |
... | @@ -123,15 +126,16 @@ need to recommend to not use slot 6. |
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Note: slot 2, 6, 7 and 8 cannot be tested, because they do not accept
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Note: slot 2, 6, 7 and 8 cannot be tested, because they do not accept
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PXIe cards, only PXI. The SPEXI only exists in PXI Express.
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PXIe cards, only PXI. The SPEXI only exists in PXI Express.
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### Data (with heatsinks)
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---
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## Data (with heatsinks)
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All FMCs were fitted with a [custom CNC-machined
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All FMCs were fitted with a [custom CNC-machined heatsink](Heatsink-Design)
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heatsink](Heatsink-Design)
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NOTE that the heatsink is not recommended to mitigate the temperature
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NOTE that the heatsink is not recommended to mitigate the temperature
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issues. Its design is provided just for information purposes
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issues. Its design is provided just for information purposes
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*Wiener 21-slot VME64x crate, slots 4-9:**
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#### Table 9: Wiener 21-slot VME64x crate, slots 4-9:
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|**Fans**|**Slot/FMC**|4/1|4/2|5/1|5/2|6/1|6/2|7/1|7/2|8/1|8/2|9/1|9/2|
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|**Fans**|**Slot/FMC**|4/1|4/2|5/1|5/2|6/1|6/2|7/1|7/2|8/1|8/2|9/1|9/2|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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... | @@ -139,7 +143,7 @@ issues. Its design is provided just for information purposes |
... | @@ -139,7 +143,7 @@ issues. Its design is provided just for information purposes |
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|Max (3600 rpm)||41.19|52.38|39.25|49.69|36.12|45.00|39.69|48.81|42.56|52.50|47.42|46.62|
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|Max (3600 rpm)||41.19|52.38|39.25|49.69|36.12|45.00|39.69|48.81|42.56|52.50|47.42|46.62|
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*Wiener 21-slot VME64x crate, slots 10-15:**
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#### Table 10: Wiener 21-slot VME64x crate, slots 10-15:
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|**Fans**|**Slot/FMC**|10/1|10/2|11/1|11/2|12/1|12/2|13/1|13/2|14/1|14/2|15/1|15/2|
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|**Fans**|**Slot/FMC**|10/1|10/2|11/1|11/2|12/1|12/2|13/1|13/2|14/1|14/2|15/1|15/2|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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... | @@ -147,42 +151,44 @@ issues. Its design is provided just for information purposes |
... | @@ -147,42 +151,44 @@ issues. Its design is provided just for information purposes |
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|Max (3600 rpm)||43.06|53.88|39.94|50.56|38.06|47.44|35.62|43.81|40.31|50.12|41.31|45.62|
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|Max (3600 rpm)||43.06|53.88|39.94|50.56|38.06|47.44|35.62|43.81|40.31|50.12|41.31|45.62|
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*Elma 18-slot VME64x crate:**
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#### Table 11: Elma 18-slot VME64x crate:
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Slots 4-9:
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Table 11a: Slots 4-9:
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| **Fans** | **Slot/FMC** | 4/1 | 4/2 | 5/1 | 5/2 | 6/1 | 6/2 | 7/1 | 7/2 | 8/1 | 8/2 | 9/1 | 9/2 |
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| **Fans** | **Slot/FMC** | 4/1 | 4/2 | 5/1 | 5/2 | 6/1 | 6/2 | 7/1 | 7/2 | 8/1 | 8/2 | 9/1 | 9/2 |
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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| Auto | **Temp** | 47.81 | 62.56 | 39.88 | 53.50 | 40.50 | 50.31 | 42.06 | 55.12 | 52.38 | 67.50 | 47.06 | 54.50 |
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| Auto | **Temp** | 47.81 | 62.56 | 39.88 | 53.50 | 40.50 | 50.31 | 42.06 | 55.12 | 52.38 | 67.50 | 47.06 | 54.50 |
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| Max (3600 rpm) | | 43.94 | 55.94 | 36.88 | 47.00 | 36.56 | 43.56 | 38.38 | 49.19 | 48.69 | 59.25 | 41.75 | 47.69 |
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| Max (3600 rpm) | | 43.94 | 55.94 | 36.88 | 47.00 | 36.56 | 43.56 | 38.38 | 49.19 | 48.69 | 59.25 | 41.75 | 47.69 |
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Slots 10-15:
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Table 11b: Slots 10-15:
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| **Fans** | **Slot/FMC** | 10/1 | 10/2 | 11/1 | 11/2 | 12/1 | 12/2 | 13/1 | 13/2 | 14/1 | 14/2 | 15/1 | 15/2 |
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| **Fans** | **Slot/FMC** | 10/1 | 10/2 | 11/1 | 11/2 | 12/1 | 12/2 | 13/1 | 13/2 | 14/1 | 14/2 | 15/1 | 15/2 |
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
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| Auto | **Temp** | 56.56 | 64.75 | 50.81 | 67.62 | 41.69 | 57.38 | 42.38 | 54.00 | 47.88 | 60.19 | 46.38 | 56.25 |
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| Auto | **Temp** | 56.56 | 64.75 | 50.81 | 67.62 | 41.69 | 57.38 | 42.38 | 54.00 | 47.88 | 60.19 | 46.38 | 56.25 |
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| Max (3600 rpm) | | 51.31 | 56.06 | 45.81 | 58.12 | 37.44 | 48.00 | 37.94 | 45.94 | 42.62 | 52.12 | 40.75 | 48.50 |
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| Max (3600 rpm) | | 51.31 | 56.06 | 45.81 | 58.12 | 37.44 | 48.00 | 37.94 | 45.94 | 42.62 | 52.12 | 40.75 | 48.50 |
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*Elma 6-slot VME64x crate**
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#### Table 12: Elma 6-slot VME64x crate
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| **Fans** | **Slot/FMC** | 2/1 | 2/2 | 3/1 | 3/2 | 4/1 | 4/2 | 5/1 | 5/2 | 6/1 | 6/2 |
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| **Fans** | **Slot/FMC** | 2/1 | 2/2 | 3/1 | 3/2 | 4/1 | 4/2 | 5/1 | 5/2 | 6/1 | 6/2 |
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|----|----|----|----|----|----|----|----|----|----|----|----|
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|----|----|----|----|----|----|----|----|----|----|----|----|
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| Auto | **Temp** | 69.06 | 65.12 | 70.69 | 61.75 | 62.25 | 53.44 | 75.25 | 65.62 | 81.88 | 70.50 |
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| Auto | **Temp** | 69.06 | 65.12 | 70.69 | 61.75 | 62.25 | 53.44 | 75.25 | 65.62 | 81.88 | 70.50 |
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| Max (3600 rpm) | | 62.12 | 58.75 | 62.06 | 55.12 | 53.06 | 47.12 | 66.12 | 58.56 | 74.62 | 63.69 |
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| Max (3600 rpm) | | 62.12 | 58.75 | 62.06 | 55.12 | 53.06 | 47.12 | 66.12 | 58.56 | 74.62 | 63.69 |
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*Elma 2-slot VME64x crate**
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#### Table 13: Elma 2-slot VME64x crate
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| **Fans** | **Slot/FMC** | 2/1 | 2/2 |
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| **Fans** | **Slot/FMC** | 2/1 | 2/2 |
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|---|---|---|---|
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|---|---|---|---|
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| Auto | **Temp** | 61.06 | 64.62 |
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| Auto | **Temp** | 61.06 | 64.62 |
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| Max (3600 rpm) | | 56.38 | 60.62 |
|
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| Max (3600 rpm) | | 56.38 | 60.62 |
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*Kontron KISS 6U industrial PC**
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#### Table 14: Kontron KISS 6U industrial PC
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| **Slot** | 1 | 2 | 3 | 7 | 8 |
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| **Slot** | 1 | 2 | 3 | 7 | 8 |
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|----|----|----|----|----|----|
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|----|----|----|----|----|----|
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| **Temp** | 88.19 | 81.94 | 89.12 | 83.0 | 71.75 |
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| **Temp** | 88.19 | 81.94 | 89.12 | 83.0 | 71.75 |
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----
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### Summary
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### Summary
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|**Crate**|**Airflow**|**Heatsink**|**Min**|**Max**|**Span**|**Mean**|**Median**|
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|**Crate**|**Airflow**|**Heatsink**|**Min**|**Max**|**Span**|**Mean**|**Median**|
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... | | ... | |