Operating Conditions

Alveo MA35D Media Acceleration Card Data Sheet (DS1010)

Document ID
DS1010
Release Date
2023-11-10
Revision
1.1 English

Inlet Temperature versus Airflow Requirement in Server

The following tables provide the estimated airflow rate and airflow speed to the MA35D card under various operating conditions. For a higher or lower total card power target, ensure the appropriate air flow and inlet temperature conditions are in place.

Table 1. Normal Flow into I/O Bracket at Sea Level
Inlet Temperature vs Airflow Requirement of PCIe Card Slot (56.51 mm x 20.33 mm) at Sea Level for 33W Total Card Power
Inlet Temperature (°C) Airflow (CFM) Air Speed (LFM) System Pressure Drop (inwg)
25.0 1.8 150 0.07
30.0 2.0 170 0.08
35.0 2.2 190 0.10
40.0 2.5 210 0.11
45.0 3.0 240 0.14
50.0 3.6 290 0.18
55.0 4.6 370 0.26
Table 2. Normal Flow into I/O Bracket at 1800m above Sea Level
Inlet Temperature vs Airflow Requirement of PCIe Card Slot (56.51 mm x 20.33 mm) at 1800m above Sea Level for 33W Total Card Power
Inlet Temperature (°C) Airflow (CFM) Air Speed (LFM) System Pressure Drop (inwg)
25.0 2.0 170 0.08
30.0 2.2 190 0.10
35.0 2.5 210 0.11
40.0 2.8 230 0.13
45.0 3.3 270 0.16
50.0 4.0 330 0.21
55.0 5.1 420 0.31
Table 3. Reverse Flow into I/O Bracket at Sea Level
Inlet Temperature vs Airflow Requirement of PCIe Card Slot (56.51 mm x 20.33 mm) at Sea Level for 33W Total Card Power
Inlet Temperature (°C) Airflow (CFM) Air Speed (LFM) System Pressure Drop (inwg)
25.0 1.2 130 0.07
30.0 1.4 150 0.08
35.0 1.5 160 0.09
40.0 1.7 180 0.10
45.0 2.0 210 0.12
50.0 2.4 250 0.16
55.0 3.0 320 0.21
Table 4. Reverse Flow into I/O Bracket at 1800m above Sea Level
Inlet Temperature vs Airflow Requirement of PCIe Card Slot (56.51 mm x 20.33 mm) at 1800m above Sea Level for 33W Total Card Power
Inlet Temperature (°C) Airflow (CFM) Air Speed (LFM) System Pressure Drop (inwg)
25.0 1.4 150 0.08
30.0 1.5 160 0.09
35.0 1.7 180 0.10
40.0 1.9 200 0.12
45.0 2.2 240 0.14
50.0 2.7 280 0.18
55.0 3.4 360 0.25