What is the average power consumption of computer accessories?

Now the power consumption of standard power supply is 300W W W.

In other words, it is equivalent to three hours of electricity.

Details are as follows:

Mainly CPU graphics card hard disk these three.

Power consumption reference of computer accessories

The following is before June 2005

Cpu power consumption

P4 2.8G——84W

P4 2.6G————78W

P4 2.4G——73W

P4 2.0G————66W

Celeron 2.4G——63W

Celeron 2.0G——58W

athlonxp 2500+——76W

Athlonxp 2200+————7 1W

Athlonxp 1800+————66W

mainboard

I875+ICH5R————66W

865PE+ICH5————6 1W

I848+ICH5———— 60W

845E+ICH4 ————43W

845GL+ICH4————46W

NFORCE2U400+MCP-T————60W

VIA KT600+VT8237————57W

VIA KT400A+8235————56W

display card

FX5700 ULTRA————50W

FX 5600 ULTRA——45W

FX 5600 XT——35W

FX 5200 ULTRA——33W

FX5200————26W

MX 4000——25W

MX 440 -8X————30W

memory ability

256MDDR———— 15W

5 12MDDR————30W

hard disc

7200PRM 80G———— 22W

7200 PRM 160g——28W

Optical memory

Combination-24w

DVD-ROM——20W

CD ———— 15W

CD-RW ———— 16W

Floppy Drive -5W

PCI sound card -5w

PCI network card -5w

Chassis Fan -3W

Processor Fan -3W

Keyboard-1.3W

Mouse-1.3W

The following is so far

It's hard to say yet.

Power consumption list of computer accessories (is it scary to calculate electricity bill? )

Power consumption list of computer accessories (is it scary to calculate electricity bill? )

For some accessories in computers, we can know their power values through their nominal current values or data provided by manufacturers.

. For accessories without relevant information, we can estimate its power value by its calorific value. clear

These related data will play a great role in selecting the appropriate power supply.

1、CPU

With the rapid increase of the main frequency, the power of CPU, a big power consumer, keeps rising. Despite the current mainstream

The CPU adopts very advanced manufacturing technology, but we can still see it from the radiators that are constantly "exaggerated"

So today's CPU power is much higher than that of 486 and 586 (see table 1).

From the figures in table 1, we can see that with the increase of CPU frequency, the energy consumption is also rising, although it is normal.

By improving the manufacturing process of CPU, power consumption and heat can be appropriately reduced, but the power brought by the increase of main frequency is greatly improved.

That's for sure.

Table 1 cpu power consumption list

Table 1 cpu power consumption list

cpu

basic frequency

maximum power

cpu

basic frequency

maximum power

Celeron

500 MHz

30.05 watts

Grouse

950 MHz

4 1.5w

Celeron Ⅱ

600 MHz

21.225w

Grouse

1.3ghz

68.3 watts

Celeron Ⅱ

1. 1ghz

40.375 watts

Duron

1. 1ghz

50w

Tualatin

(Celeron Ⅲ)

1ghz

27w

Sulong xp

(palomino)

1500+

60w

Tualatin

(Celeron Ⅲ)

1.2ghz

29w

Sulong xp

(palomino)

2 100+

72w

pentium 4

(Willamette)

1.5ghz

75w

Sulong xp

(purebred)

1700+

49.4 watts

pentium 4

(Willamette)

1.9ghz

87w

Sulong xp

(purebred)

2000+

60.3 watts

pentium 4

(Northwood)

1.8ghz

49w

Sulong xp

(purebred)

2200+

67.9 watts

2. Optical storage devices

The author carefully checked the "Three Musketeers" of his computer, and provided the voltage and current values through it.

Their power is converted (see Table 2).

Through the calculation in Table 2, it can be roughly judged that the total power of CD-ROM+DVD-ROM+CD-RW is about 71w.. although

It is unlikely that the three devices will work at the same time, but all the above devices will participate in the self-inspection, so consider the power supply.

When carrying power, the maximum value of three devices must be considered. On the other hand, COMBO is a collection of CD-r om, DVD-ROM and CD.

The power of -RW optical storage device is less than 30W, which is a good choice for energy saving.

Table 2 Power consumption list of optical storage devices

Table 2 Power consumption list of optical storage devices

Optical storage device

12v

5v

gross power

current value

Power consumption

current value

Power consumption

Asus 40x CD

1.5a

18w

0.9a

4.5w

22.5 watts

BenQ 24x 10x CD

1.7a

20.4 watts

0.9a

4.5w

24.9 watts

BenQ 16x dvd-rom

1.6a

19.2w

0.9a

4.5w

23.7 watts

be equal to

4.8a

57.6 watts

2.7a

13.5w

7 1. 1w

3. Hard disk

Hard disk is also a big power consumer. With the increase of motor speed (5400 rpm, 7200 rpm), its power is also available.

Constantly improve. Let's look at the peak power when the hard disk is started (see Table 3). Table 3 Hard disk power

Consumption list

Table 3 List of Hard Disk Power Consumption

hard disc

capacity

5v startup

peak point current

12v startup

peak point current

5v peak value

Power consumption

12v peak

Power consumption

Total peak value

force

ibm dtla-307020

20gb

0.33a

1.44a

1.65w

17.28w

18.93w

Maituo 5t060h6

60gb

0.58a

2. 1a

2.9w

25.2 watts

28. 1w

Maituo 98 196h8

80gb

0.28a

1.68a

1.4w

20. 16w

21.56W

Seagate st34083

40gb

0.70a

0.94

3.5w

1 1.28w

14.78w

western digital corporation

Caviar wd600ab

60gb

0.64a

1. 10

3.2w

13.2w

16.4w

From Table 3, we can calculate that two hard disks need 37W~56W power when they work. Furthermore, since the server can

To mount multiple hard disks and install more than two CPUs, its power supply is more than that of home computers.

Large, so the power supply of the server is often labeled with 350W and 400W, which is why.

4. Graphics card

Early S3 Savage 3D RIVA 128, TNT, G200, Voodoo2 and other similar graphics cards consumed about 3~6W.

. Evolved to RIVA TNT2, S3 Savage 4, Voodoo 3, G400, ATi Rage GL/VR, with a power consumption of about 5.

~ 10W. Later, with the intensification of competition and the emergence of the concept of GPU, the power consumption of display chips increased greatly.

Very long. With GeForce 256, GeForce 2, GeForce3 and GeForce4 series and ATi RADEON, RADEON7500,

With the arrival of 8500 and 9000(9700) series, the power consumption has been increasing. These graphics cards

The power consumption reached 15~35W. Professional graphics cards have large memory and better processing power, so

Its power consumption is between 35 and 60w.

5. Sound card

At present, most users are using AC'97 sound cards, except for some users who use innovative brand sound cards. Yidimeng S70

For a sound card, its power is about 3W. Therefore, it can be inferred that the power of the sound card with AC'97 specification will not be greater than 3W, which is innovative.

The company's top sound card, its power consumption will not exceed 10W.

6. Built-in modem and network card

Nowadays, most users who use network cards surf the Internet through broadband, so there is no "cat" on the computer. usually

In this case, the power of the network card will not exceed 6W. And the power value of the built-in modem will not exceed 8W. As for the external mode

Em, because it has its own power supply device, it is not considered here.

7. Floppy disk drive

Because of the low motor speed, the power of floppy drive is much lower than that of hard disk, generally below 5W.

8. Motherboard

It is difficult to accurately infer the power consumption of the motherboard. But we can also roughly estimate that it is usually the motherboard.

The most power-consuming chips in the world are South Bridge and North Bridge chips. For example, some main chips of SiS have only one chip at all. Usually,

The power consumption of non-integrated motherboard will not exceed 20W, and that of integrated motherboard will not exceed 25W.

9. Cooling fan

When the weather is hot, there will naturally be more fans in the chassis. Take the author's as an example:

Internal power cooling fan:12v× 0.2a = 2.4w. ..

CPU cooling fan =12× 0.23a = 2.76W. ..

Front fan of chassis =12× 0.12a =1.44w.

Fans at the rear of the chassis (2) =12× 0.1a× 2 = 2.4w.

Total power consumption of the fan: 2.4+2.76+ 1.44+2.4=9W.

10, memory

The power consumption of memory is probably the lowest among all accessories, generally between 0.5W~2W and 2W to 2 W. ..

1 1, statistics

The result was somewhat unexpected. The estimated peak power of each accessory is actually 282. 13W (see Table 4), so it can be

It is estimated that the actual power consumption is at least about 200W W. However, considering the large current at startup, due to

The configuration in the above table should be equipped with at least one 300W power supply. Of course, if you consider the possibility of adding equipment in the future, you should

Buy a 350W power supply.

Table 4 Equipment Power Consumption Statistics

Table 4 Equipment Power Consumption Statistics

device name

Brand, model and specification

Maximum value (peak power consumption)

cpu

p4 1.9ghz

87w

Read-only optical disk memory

Asus 40x

22.5 watts

cd-rw

BenQ 24x 10x

24.9 watts

dvd-rom

BenQ 16x

23.7 watts

hard disc

Maituo 5t060h660gb

28. 1w

hard disc

ibm dtla-30702020gb

18.93w

display card

geforce3 ti 200 64mb

22w (including cooling fan)

mainboard

i845e

25w

sound card

Motherboard integration

modem

Built-in 56k

8w

network card

10/100m

6w

floppy disk drive

1.44mb

5w

internal storage

256mb

2w

Radiator fan

All fans

9w

* * * instrument

282. 13w

For a 250W power supply, it is enough to deal with ordinary home computers. After all, many computers are a hard disk and a computer.

Optical storage devices, while the power consumption of Celeron II and Celeron III processors is only 30~50W, compared with 87W of P4.

After all, it's much less.

Try to use the high-quality brand power supply with good reputation, because the inferior power supply claims to be 250W and 300W, but its internal

The allowable current value of rectifier diode and the power value of power switch tube are often only 1/2 or 2/3 of that of high-quality power supply, so

Inevitably, there will be a power supply called 250W W, which often crashes or can't be turned on at all when carrying 200W power consumption. and

Moreover, the inferior power supply is not as good as the brand in the design of protection circuits such as short circuit protection, overload protection and undervoltage protection.

Compared with the source. Recommended power brands: Great Wall, Century Star, Buffalo, Hangjia, etc.