Operating Conditions

Alveo U55C Data Center Accelerator Cards Data Sheet (DS978)

Document ID
DS978
Release Date
2022-09-01
Revision
1.1 English

Inlet Temperature versus Airflow Requirement in Server

The following tables provide the required airflow rate and airflow speed to the Alveo U55C card under various operating conditions.

Normal Airflow

Table 1. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (98.4 mm x 20.33 mm) at Sea Level for 115W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 11.0 512 0.37 11.3 525 0.36
30 12.3 571 0.43 12.8 596 0.44
35 13.8 642 0.52 14.7 684 0.55
40 15.8 732 0.64 17.1 796 0.70
45 18.2 844 0.80 20.2 940 0.93
50 21.3 991 1.03 24.4 1133 1.28
55 25.6 1189 1.40 30.1 1399 1.85
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
Table 2. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (98.4 mm x 20.33 mm) at 1200m above Sea Level for 115W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 11.7 545 0.40 12.0 559 0.40
30 13.1 608 0.48 13.7 635 0.49
35 14.7 684 0.57 15.7 729 0.61
40 16.8 779 0.70 18.2 847 0.78
45 19.4 899 0.88 21.6 1001 1.03
50 22.7 1056 1.15 26.0 1206 1.43
55 27.3 1266 1.56 32.1 1490 2.07
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
Table 3. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (98.4 mm x 20.33 mm) at Sea Level for 135W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 13.7 637 0.51 14.2 658 0.52
30 15.3 710 0.61 16.1 747 0.63
35 17.2 799 0.73 18.5 858 0.80
40 19.6 910 0.90 21.5 997 1.03
45 22.6 1051 1.14 25.4 1178 1.37
50 26.6 1233 1.49 30.6 1419 1.90
55 31.9 1480 2.03 37.8 1753 2.77
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
Table 4. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (98.4 mm x 20.33 mm) at 1200m above Sea Level for 135W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 14.6 678 0.56 15.1 701 0.57
30 16.3 756 0.67 17.1 796 0.70
35 18.3 851 0.81 19.7 913 0.89
40 20.9 969 1.00 22.9 1062 1.14
45 24.1 1119 1.26 27.0 1254 1.53
50 28.3 1314 1.66 32.5 1512 2.12
55 33.9 1576 2.26 40.2 1867 3.10
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
Table 5. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (98.4 mm x 20.33 mm) at Sea Level for 150W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 15.8 735 0.64 16.4 763 0.66
30 17.6 820 0.76 18.7 867 0.81
35 19.9 923 0.92 21.4 994 1.02
40 22.6 1051 1.14 24.9 1156 1.32
45 26.1 1213 1.45 29.4 1366 1.77
50 30.7 1424 1.90 35.4 1646 2.47
55 36.8 1708 2.60 43.8 2033 3.62
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
Table 6. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (98.4 mm x 20.33 mm) at 1200m above Sea Level for 150W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 16.8 782 0.71 17.5 813 0.73
30 18.8 873 0.84 19.9 923 0.90
35 21.2 982 1.02 22.8 1059 1.14
40 24.1 1119 1.26 26.5 1231 1.48
45 27.8 1292 1.61 31.3 1455 1.98
50 32.7 1516 2.12 37.7 1753 2.77
55 39.2 1819 2.91 46.6 2166 4.07
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.

Reverse Airflow

Table 7. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (104.57 mm x 13.18 mm) at Sea Level for 115W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 14.0 944 1.59 14.8 999 1.09
30 15.9 1071 2.00 16.9 1138 1.37
35 18.2 1229 2.57 19.5 1312 1.77
40            
45            
50            
55            
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
  2. In reverse flow, the card only supports an ambient temperature of ≤ 35°C.
Table 8. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (104.57 mm x 13.18 mm) at 1200m above Sea Level for 115W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 14.9 1005 1.78 15.8 1064 1.22
30 16.9 1141 2.24 18.0 1212 1.54
35 19.4 1309 2.88 20.7 1397 1.99
40            
45            
50            
55            
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
  2. In reverse flow, the card only supports an ambient temperature of ≤ 35°C.
Table 9. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (104.57 mm x 13.18 mm) at Sea Level for 135W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 18.0 1216 2.52 18.8 1270 1.67
30 20.5 1380 3.18 21.5 1448 2.12
35 23.5 1583 4.10 24.8 1668 2.76
40            
45            
50            
55            
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
  2. In reverse flow, the card only supports an ambient temperature of ≤ 35°C.
Table 10. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (104.57 mm x 13.18 mm) at 1200m above Sea Level for 135W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 19.2 1295 2.83 20.1 1353 1.88
30 21.8 1470 3.57 22.9 1542 2.38
35 25.0 1687 4.62 26.4 1777 3.10
40            
45            
50            
55            
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
  2. In reverse flow, the card only supports an ambient temperature of ≤ 35°C.
Table 11. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (104.57 mm x 13.18 mm) at Sea Level for 150W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 21.3 1436 3.42 22.1 1488 2.23
30 24.2 1630 4.33 25.2 1696 2.84
35 27.7 1870 5.61 29.0 1954 3.70
40            
45            
50            
55            
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
  2. In reverse flow, the card only supports an ambient temperature of ≤ 35°C.
Table 12. Inlet Temperature versus Airflow Requirement of PCIe Card Slot (104.57 mm x 13.18 mm) at 1200m above Sea Level for 150W Total Card Power
Inlet Temperature to the Card (°C) With QSFP (85°C) Without QSFP 1
Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg) Cubic Feet per Minute (CFM) Linear Feet per Minute (LFM) Static Pressure (inwg)
25 22.7 1530 3.85 23.5 1585 2.51
30 25.8 1736 4.88 26.8 1806 3.19
35 29.6 1992 6.32 30.9 2082 4.16
40            
45            
50            
55            
  1. The card without QSFP allocates more power in the FPGA which is consumed in the card with QSFP scenario.
  2. In reverse flow, the card only supports an ambient temperature of ≤ 35°C.