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400 or 300 watt power supply with an Athlon 1.4ghz?

Courtland

Senior member
I am buying a case that comes with an Antec 300w power supply, whether I want it or not, however AMD recommends the 400w Antec ps. Is anyone running or think they could run a 1.33 or a 1.4 without problems with the 300w ps. I plan on having 2-3 hard drives, 2 cdrom drives, sblive, geforce3, a nic, etc attatched, and do some overclocking. I realize this is pushing it but does anyone think I shouldnt have much of a problem with the 300? I really don't want to shell out 80 bucks and put a brand new power supply in the closet at the same time.
 
I'm running a Tbird 1.0Ghz at 1.4Ghz(140*10) for five hours so far with no problem.

Antec SX830 case 300W PSU
Iwill KK266-R KT133A Motherboard
128MB Mushkin PC133 cas2 rev. 3
Geforce 2 GTS 32MB
2 ATA/100 hard drives
1 CD drive
1 CDRW
 
My Powmax 400 just burned out, so I'm running the 1.2 ghz on an Antec 300 watt; however, I went ahead and ordered a 400 watt enermax. I was getting lots of crashes with the 300 watt until I tuned-down the bios settings. In the end, it depends on the number of peripherals and fans you have attached to your system.
 
Personally, I think your best bet would be to spend the the few extra dollars on a Enermax 430W. They can be had for ~$80 and they will ensure you have ample power going to that power hungry Athlon. If you think about it, the powersupply is one of the most important components in a system. It never hurts to have power in reserve.... If you order your case from a place like Directron, you can buy it without a PS to save some $$$.
 
Grunty Athlon and up to 3 hard drives, get an Enermax or Antec 400W power supply. The Antec 300W is great, but you will be running a pretty power hungry system

 
I think a 350watt sparkle could handle the job with room for some other devices...55.00 dollars at KRI Computers ( I think www.servercase.com )

I run this theory:

durons and tbirds up to 900mhz = 250watt

tbirds 900-1200mhz = 300watt

tbirds 1333+ = 350 watt
 
so i should go with the antec sx1040 if i buy a 1.33 tomorrow (there is a good chance of it... the moons are aligning or something...)
 
I only just upgraded to a 300w power supply.....and I think it helped. My cdrom was doing weird things before when I was on a 250w. Now the problems are gone 😛
 
Well, if 300W sounds too little to you, and 400W seems way more than you need, how about 350W? The Enermax 350W is around $50, I think its a good choice.
 
I have an Antec 300W for each of my systems; one at 1.4GHz, one at 1.2GHz; both with a hard drive, CD-RW drive, floppy, etc.

They both run solid.
 
Is it possible to run two independent power supplies in the same system? I have a 300watt power supply right now, and i have an old 250 watter lying around. Could I let the 300 run the system, and have the 250 watt power the cd and hard drives? Just turn them on at the same time? The old 250 has the old style motherboard plug and its on own off switch, not ATX compliant, I don't think..
 
I've got a 1.33ghz AMD on an ASUS A7m266, 512mg DDR, 2x 7200 rpm 40 gig maxtors, geforce3, floppy, 12x10x10 lite on cdrw, 12x toshiba DVD (I think), and a s*load of peripherals usb'd, and a Hercules Gametheater XP with Rack, all in an Antec 1030SX case with 300 watt powersupply...
NO problems...
I noticed that the +5v is running about 4.9, and that's about it...
I'm getting the 400 watt for posterity, but it's been running for days without problem.
 
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