[THe_KELRaTH]

I'll just repost my R3D post....

I believe it's time that PC component manufacturers start labelling their power requirements properly. Saying 480w is recommended means nothing, rather there should be clear information on peak / max power requirements per rail.

By recommending a PSU rating in general it is effectvely just misleading the public - you might own an Enermax 350w with a 12v rail max rating of 26amps but buy a "so-called" upgrade to a Q-Tec top of the line 550w but only to find the max 12v rail rating is 14amp.

If you were running an Intel Northwood P4-3.06 you'd have to take off 9.71amps from your 14 for starters!

[mystvearn]

Running 2.8 w/out HT. So I guess take off more power?
I have 3 HD.
2 optical drives.
2 molex, all split.
5 8cm fans. 1 is a lighted side fan. 2 rear, 2 front.

[karlotta]

well atleast buy a PSU with 20amp 12v rail. 200w can work if the MB is rocksoild, and the PSU is too. But your not going to do much with that power except one action at a time. Also you would be running all your fans on 5v/3v
except your CPU fan, and that would should be cut down to 7v....
On the whole most 480w PSUs today (not two years ago) have ok amps on the 12v, so that could be for the requierment . to insure some quality power.
And most testbeds are allready tweaked out. I d realy like to see a survey on the MBs of the sites testbed.

[nevyn]

Hello again.

At the moment im using this proSilence PCS-350 Fanless PSU.
http://www.silentpcreview.com/article90-page1.html

I really like it and i dont want to switch do you think its possible that it will work on some of the new NVidia and ATi cards ?

Im currently using a Shappire Radeon 9700 pro on it and it works very good.

Thx

/Nevyn

[mczak]

Originally Posted by nevyn

Hello again.

At the moment im using this proSilence PCS-350 Fanless PSU.
http://www.silentpcreview.com/article90-page1.html

I really like it and i dont want to switch do you think its possible that it will work on some of the new NVidia and ATi cards ?

Im currently using a Shappire Radeon 9700 pro on it and it works very good.

Thx

/Nevyn

Well, it's stated in the review - this psu is only rated for 170W (or 197W for the newer version). Additionally, that psu skimps on the 12V line.
So, if you have a (old) motherboard which draws cpu power from the 3.3V/5V line, it might just work fine (at least the newer 1.2 psu), but I wouldn't recommend it unless your other components don't draw a lot of power (for instance if you use that famous athlon mobile 2500+ unoverclocked).
Of course, "some" of the newer cards might not draw more power than your current radeon 9700pro, but that does not include the highest-end models.

[SithSolo1]

[quote="mczak"]

Originally Posted by nevyn

20A on the 12V rails might be enough.
For instance, my enermax 365AX (353W) is rated for 26A on the 12V rail, 32A for 3.3V rail, 32A for 5V rail (but 3.3V + 5V rail shall not exceed 185W, and all rails together shall not exceed 353W). This setup thus should be piece of cake for that particular psu. In fact, the next lower rated enermax from that series (300W, 22A for 12V rail) would likely run it just fine too.

Soooo I'm guessing my PSU just isn't gonna cut it.

http://www.antec-inc.com/specs/true380_spe.html

It's only rated 18A on the 12V rail. D*mns you Antec!

[Sworkhard]

Now to bring a touch of reality here: 2 years ago 400 watt Antec powersupplies were causing lockups on PCs equpped with a 50 watt draw 9700. I highly doubt a generic power supply will suffice with a 110 watt plus card in full load situations will work. One of about 100 threads on the 9700 launch.

You have to remember, however, that my Antec 400w PSU has only 18a on the 12v rail. Some 300-350 watt PSU's have a lot more than that. I've seen 350 watt PSU's with 25a + on the 12v rail so they would handle this load better than my antec 400 watt one.
[/quote]

[karlotta]

pricey i know but chk the specs. 410
510
They have removed all my power issues or doubts.