kfan
08-01-2001, 06:29 PM
Here is a list of the power usage of some common components
1-GHz PIII___________________33 watts
1.2GHz Athlon________________70 watts
700MHz Celeron______________ 21 watts
SDRAM_______________________7 watts per 128MB
Motherboard_________________ 15-30 watts
Standard SCSI hard drive_______10-25 watts
10k- or 15k-rpm SCSI hard drive_10-45 watts
IDE hard drive_________________5-15 watts
CD-ROM, CD/RW, or DVD-ROM___10-25 watts
Floppy drive___________________5 watts
Network card__________________4 watts
PCI add-in-card________________5 watts
Graphics card_________________20-50 watts
When you size your power supply try and add about 30%
more power than your system will use just in case.
1-GHz PIII___________________33 watts
1.2GHz Athlon________________70 watts
700MHz Celeron______________ 21 watts
SDRAM_______________________7 watts per 128MB
Motherboard_________________ 15-30 watts
Standard SCSI hard drive_______10-25 watts
10k- or 15k-rpm SCSI hard drive_10-45 watts
IDE hard drive_________________5-15 watts
CD-ROM, CD/RW, or DVD-ROM___10-25 watts
Floppy drive___________________5 watts
Network card__________________4 watts
PCI add-in-card________________5 watts
Graphics card_________________20-50 watts
When you size your power supply try and add about 30%
more power than your system will use just in case.