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How much power does a psu need?

W

WuGgaRoO

Guest
#1
Currently, I have a motherboard with 10 usb ports, a built in NIC card, and a built in soundcard. (abit IT7) Anyways, i was looking foward to adding a ati 9700, but i was wondering, how many watts does my psu need to support that type of a load (i have 2 harddrive, 5400 rpm, 1 floppy, and 1 12/10/30a plexwriter)
 
D

dijital

Guest
#2
it all depends on how many pci slots and other devices you plan to have in your system. but why not go for a 400+ PSU to be ready for future stuff? :D
 
#3
here is what the average usage is.
AGP video card - 30-40W (external hookup for 9700)
PCI video card - 30W
AMD Athlon 900MHz-1.1GHz - 50W
AMD Athlon 1.2MHz-1.4GHz - 55-65W
AMD Duron 1.0MHz-1.3GHz - 50W
AMD Athlon 1.47MHz-1.73GHz - 75W
Intel Pentium III 800MHz-1.26GHz - 40W
Intel Pentium 4 1.4GHz-1.7GHz - 65W
Intel Pentium 4 1.8GHz-2.0GHz - 75W
Intel Pentium 4 2.2GHz-2.4GHz - 90W
Intel Celeron 1.0GHz-1.1GHz - 35W
Intel Celeron 1.2GHz-1.4GHz - 50W
ATX Motherboard - 35W-45W
128MB RAM - 10W
256MB RAM - 20W
24X or higher IDE CD-RW Drive - 35W
32X or higher IDE CD-ROM Drive - 25W
10x or higher IDE DVD-ROM Drive - 20W
SCSI CD-RW Drive - 17W
SCSI CD-ROM Drive - 12W
5,400RPM IDE Hard Drive - 10W
7,200RPM IDE Hard Drive - 13W
7,200RPM SCSI Hard Drive - 24W
10,000RPM SCSI Hard Drive - 30W
15,000RPM SCSI Hard Drive - 45W
Floppy Drive - 5W
Network Card - 4W
Modem - 5W
Sound Card - 5W
SCSI Controller Card - 20W
Firewire/USB Controller Card - 10W
Case Fan - 3W
CPU Fan - 3W
 
G

G-Lizard86

Guest
#4
Mine's just something like 145 watt...buy a new one? (standard packardbell casing though)
 
G

G-Lizard86

Guest
#6
268 watt...that's maximum on the rates you gave me, so 250 watt probably should be enough i think...what would happen if i stick with this one?
 
G

G-Lizard86

Guest
#8
and with that average i mean if the other guy his list gave something like 35-45 watts, i took 45..the maximum and then i reached 268 at max..
 

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