350w enough for this system?

JTalbain

Senior member
Jan 17, 2005
279
0
71
so in a few months i will be getting some parts off my brother as he upgrades to pci-e. my upgraded system will be as follows:

AMD Athlon 64 3000+ (socket 754, clawhammer)
ASUS K8N-E nforce3 motherboard
1 gig of ram (2 sticks of pc3200)
ATI Radeon 9800pro
1 80gb seagate drive
1 160gb seagate drive
SB Live 5.1 card
ATI TV wonder TV tuner
4 80mm case fans
1 120mm case fan
Vantec fan controller
1 Mitsumi floppy drive
1 BTC DVD drive
1 NEC 3540a DVD burner

This is my power supply. I bought it a while back based on the recommendations from Silent PC Review forums about its low noise. Weird thing tho is that all websites advertised it as 350w, yet the sticker on the side of the case says 325.4w.

The rails are as follows: 28A on the +3.3V, 35A on the +5v, and 15A on the +12V. The only thing that really has me worried is the 12v rail.

I also used the power supply calculator found here. Anyone know how accurate this is? At 80% PSU utilization i get 318w, but at 100% i get 352 watts which has me a lil worried.

Also, everything here is gonna be run at stock speeds for now. No oc'ing needed just yet.

Thanks in advance.
 

imported_goku

Diamond Member
Mar 28, 2004
7,613
3
0
Get a 400WATT antec PSU and if your really anal, get a PC power and Cooling Power supply, I think they make the most efficient power supplies. For the most part, that PSU should technically be sufficient but it's not. I had a 350watt junker PSU with a similar load (P4 2.8) and I had major difficulty in overclocking, 5V rail was very very low, changed it out for a 480 watt antec and I was able to overclock stable at 3.5GHZ.

I ran kilowatt and at Idle its about 222 watts but under load it got very very close to 350 watts and IIRC it went over once. I've since changed the configuration so the power draw is less now, also BTW I only had 1 80MM high speed CPU fan and 1 80MM case fan but just about the same on everything else.

This will be a little over what you need but will handle future loads (No 7 HDD drive arrays!) http://www.antec.com/us/productDetails.php?ProdID=20430
This is the Cheaper, lower end 400watt PSU http://www.antec.com/us/productDetails.php?ProdID=26400
I think the "smart power series" is just not as advanced but still has good reliability.
 

Zepper

Elite Member
May 1, 2001
18,998
0
0
Shotgun posting is frowned upon here. But you're a relative noob here, so we'll let it slide this time...

See my reply at your other identical post.

.bh.