Geforce FX 6800 ultra vs the powersupply, Question ?

Apparently you can run it on a _200_W PSU. At least someone tested that.
http://www.nvnews.net/vbulletin/showthread.php?t=27394 (though I'd really not recommend that, chances are this system definitely will draw more power sometimes).

 

I couldnt even run my 5900NU on a 200w in my daughters SFF case.

 

Don't believe everthing you read....otherwise a 480 watt PS would not be recommended would it.

 

It's all a matter of the quality of the PSU (for quality, read: reliability), and the load placed on it by other components. I'm sure the card would work fine on a 120W PSU, assuming nothing else were drawing power, but that fact wouldn't be much help to man nor beast.

I'd have thought the 480W figure was based on, as someone once said, the "el-cheapo" power supplys, just to ensure people don't get burned. The more savvy buyer could get a higher quality, lower wattage PSU, depending on other component requirements.

 

I am thinking of an upgrade. Can I make it with this setup(link)
http://img12.photobucket.com/albums/v30/mystvearn/power.jpg

My system is like the signature below

 

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!

 

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.

 

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.

 

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.

 

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.
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my two best PSUs

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