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Power supply recommendations?

I don't have enough complication in my life right now, so I've decided to build my own computer from scratch (scrounging components as I come across them).

So.. I have a Pentium II 266MHz, motherboard, AGP graphics card, and all of the basic components (one HD, modem, sound card) and may add more in the future.  What kind of power supply do I need?  I don't want it to run out of juice if I start adding cards or HDs to it.
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foote
Asked:
foote
1 Solution
 
RoadWarriorCommented:
*smiling* the good news is that in general the power requirements of peripherals are going down all the time rather than up, so where 7or8 years ago one picked a 400w supply to be able to have more than a few drives and add ons, now most cases even tower ones with 8 drive bays are being supplied with 200w supplies, if you like to be cautious try and find a 250 watt one, but i have run a system with 2 cdroms, 3 hardrives, 2 floppy drives, a floppy tape drive, processor fan, case fan and all the card slots filled on a 200W supply, the only complication was the need to have plenty of y connectors to split the power connectors to have enough of them. *smile* so i doubt you will outgrow your power supply before you outgrow the physical contraints of the case it is in. The biggest towers around will give you something like 3 internal 3.5 ins bays 1 external 3.5 ins 6 external 5 1/4 ins bays *smile* with a 250 or 300w supply. *smile*

hope that helps,

Road Warrior.
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