Intel DQ77KB

Technical Reference
75
Table 44. Typical System-Level Power Consumption Figures
Max
Power
Rating
(W)
Power Req
1
(W)
35 W Slim Desktop 65 W AiO
Util Budget
(W)
Util Budget
(W)
35 W processor 35 43.8 95% 41.6
65 W processor 65 81.3 95% 77.2
PCH 5 6.3 75% 4.7 75% 4.7
LCD w/LED backlight 25 31.3 95% 29.7
2 x 2 GB RAM 4 5 95% 4.8
2 x 4 GB RAM 8 10 95% 9.5
2 x USB3 (incl. cntlr) 10 12.5 56%
2
6.9 56%
2
6.9
2 x USB2 (high current) 13 16.3 58%
3
9.4 58%
3
9.4
5 x USB2 (std current) 12.5 15.6 36%
4
5.6 36%
4
5.6
PCIe* HMC 5 6.25 20%
5
1.25 20%
5
1.25
PCIe FMC 5 6.25 40%
6
2.5 40%
6
2.5
PCIe x4 25 31.25
SATA power 26.15 32.69 29%
7
9.48 29%
7
9.48
LAN, audio, other ICs 5 6.25 95% 5.94 95% 5.94
Speakers 6 7.5 100% 7.5
CPU fan 2.4 3 100% 3 100% 3
System fan 3.6 4.5 100% 4.5 100% 4.5
Total System Power 99.7 177.17
Notes:
1. Power requirement estimated for 80% VR efficiency.
2. 56% utilization for USB3 refers to current draw of 100 mA on port 1 and 900 mA on port 2; an
additional 1 A for controller power is then added to this ratio.
3. 58% utilization for back panel USB2 refers to current draw of 500 mA on port 3 and 1.0 A on port.
4. 36% utilization for internal USB2 headers refers to current draw of 100 mA on ports 5-8 and 500 mA on
port 9.
5. 20% utilization for Half-Mini Card refers to ~1 W Wi-Fi card power consumption.
6. 40% utilization for Full-Mini Card refers to ~2 W misc card power consumption.
7. 29% utilization for SATA refers to ~5 W slim ODD and ~2.5 W HDD (2.5”) power consumption.