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Old 10-18-04, 05:28 PM   #253
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Default Re: GeForce 6800 power supply questions

I am sure there are plenty of other power supplies that will to the job,but the OCZ powerstream is a great power suppy and it handles what ever I throw at it ,I have ran my CPU at 2.7gig and my 6800ultra at 475/1250 without a hiccup.and you have all the new connection for future upgrades and I like that you can ajust the voltage to get all the rails running at what you want.You want go wrong even if you choose the 420w.
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Old 10-19-04, 01:42 AM   #254
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Default Re: Power Supply stickie

you might get better performance with a psu of 350 watt or more, try to bench mark your card and if you got a psu of 350 watts or more bench mark that and let us know your score
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Old 10-20-04, 01:27 PM   #255
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Default Re: GeForce 6800 power supply questions

i have a thermaltake 480w psu,i just went through 2 gainward 6800gt,s in one month one was a golden sample,this was due in part to bad cards, screws holding heatsink backing off cpu,also i belive some of the problems were to under power it has only 18a on the 12v rail im going to the ocz 470psu if you look it has almost the same specs as the 520 ,33a on the 12v rail. 6800,s are power hungry!! more so if you over clock so if your going to spend 350-425$ on a video card make sure you get a STABLE psu!!i was told that these cards had to have a psu with at least 22a on the12v rail.
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Old 10-20-04, 09:08 PM   #256
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Default Re: GeForce 6800 power supply questions

I use a Antec True 550 Watt PSU for my BFG 6800 GT OC, 24 amps on the +12Volt side with dedicated voltage rails.


It's Solid as a rock!
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Old 10-22-04, 12:40 AM   #257
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by Sovereignxp
I use a Antec True 550 Watt PSU for my BFG 6800 GT OC, 24 amps on the +12Volt side with dedicated voltage rails.


It's Solid as a rock!
Good to see you have a decent PSU

AS a comparison tho, your 550 watt PSU has much less amps on the +12 then the OCZ 520 watt that has 33a with dedicated voltage rails and dedicated voltages pots(adjustable from the back/outside of the PSU) with dedicated VGA lines(x2) that are shielded with rfi filters.

All in all tho, you got a good PSU and Im not knocking it. Rock on!
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Old 10-22-04, 02:34 AM   #258
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Default Re: GeForce 6800 power supply questions

Yeah, just looked up that OCZ 520 watt PSU, Impressive! I like the idea of universal power plugs. Seems OCZ wanted to make sure they had more then enough amps to drive 2-4 Xeon’s Had I know such a beast existed at the time I would have purchased that unit. I got the Antec at cost for $99.00 so I'm not complaining. I may in the future try OCZ next time arround.
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Old 10-25-04, 02:15 AM   #259
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Default Re: Power Supply stickie

as far as I know at the lest 350 watts,
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Old 10-25-04, 03:32 AM   #260
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Default Re: GeForce 6800 power supply questions

One question

If my system seems to run fine on a 6800 Gt and a 300W power supply how will I know is it is not good and need more power?
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Old 10-25-04, 04:43 AM   #261
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Default Re: GeForce 6800 power supply questions

Check the voltajes with a program like Mother Board Monitor
or with a polimeter.

If the 12 V is low (11.5 V or less) is not a good sign ...
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Old 10-25-04, 06:00 AM   #262
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by harl
Check the voltajes with a program like Mother Board Monitor
or with a polimeter.

If the 12 V is low (11.5 V or less) is not a good sign ...

Hi ,can someone help me out..I'm kinda new to this.

I downloaded the motherboard monitor program,and it says under normal conditions that + 12 averages 11.92.

Then i tested it with everquest 2 running at 1600x1200 with maxed out settings (extremely graphic intensive) ,at the same time i burned a DVD,played a CD, and had a couple of webpages open.
I had no slow down in my system at all.

Under full load the average is 11.81 the low is 11.67 and the high is 11.92.

Is this acceptable PSU levels?
under full load average was 11.81, under normal conditions it was 11.92.

Last edited by zoth; 10-25-04 at 06:11 AM.
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Old 10-25-04, 10:44 AM   #263
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by Golden Boy
So Kahloq

Since today, 20:15pm i am one of the proud owners of a
OCZ 520W Powerstream PSU



This PSU really kicks some ass.

Lets look at before and after :

With my former high quality TSP 450W Triple Fan Blue PSU
http://www.pc-cooling.de/catalog/art...oducts_id=4398
+3.3 - 3.26V
+5 - 4.95V
+12 - 11.67V / 11.61V (in "idle" mode) - dropped down to 11.54 while gaming (11.4 is minimum ATX2.0 specs)
-12 - 12.45V
-5 - 5.15V
+5 - 4.73V

Now with the OCZ 520W (nothing adjusted)
+3.3 - 3.28V
+5 - 5.00V
+12 - 11.92V ("idle") (didn`t try gaming yet)
-12 - 12.28V
-5 - 5.15V
+5 - 4.92V

So i dont want to say that my "old" PSU was the cause for about 3 lockups in different games
(i recently updated my 6800U Bios with a newer version) - no lockups since then with the "old" PSU.
But it sure shows that the OCZ is a true powerhouse.

my system which is a bit powerhungry:
http://www.nethands.de/pys/show.php4?user=chief

I just want to recommend it to anybody too, who has a high end system - and
be sure to have enough power under the hood !

Farewell, mortals !
Hi zoth

If you would have read through this nice informative thread a bit, you would have seen that my "old" situation was much more "dangerous" then yours, it seems !
So it sure isn`t the best... but i think if it does not drop below 11.6V, and you dont get crashes or lockups or restarts... its ok...
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Old 10-25-04, 10:56 AM   #264
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by zoth
Under full load the average is 11.81 the low is 11.67 and the high is 11.92.

Is this acceptable PSU levels?
under full load average was 11.81, under normal conditions it was 11.92.
The numbers coming out of MBM (or the bios, or any other software voltage monitoring program) are fairly meaningless, to be honest.

This is for two reasons.

1) the numbers depend entirely on how the sensor chips are calibrated and there is huge scope for error in this.

2) the voltages displayed are those that your motherboard is maintaining - i.e. they are subject to all of the power regulation qualities (or problems) of your motherboard. They don't represent a true picture of what's coming off the PSU.

The only true way to test your PSU is to buy a multimeter and physically measure the voltage coming out, under a variety of load conditions.

Chip
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