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Old Nov 15, 2010, 02:13 PM   #101
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Originally Posted by Mussels View Post
^ you're correct on the wattages.


putting what i said in simpler terms:

drawing more than 75W from the slot wont magically turn the slot off, or anything else like that... if the card has no internal mechanism to deal with the power draw, the wiring feeding the slot will just start to overheat, and bad things can happen.
You know, it's really beginning to look like we need an uprated power spec for ATX & PCI-E power delivery. I'm sure we're hitting the same brick wall that CPUs did a few years ago, which is why these latest gen cards are getting held back in the performance they deliver and are not really massively faster than the ones that they replace. I'll bet the new Cayman GPU will have a lot of the same power and heat issues as nvidia's Fermi GPU.

I'm sure that if a 600W power budget (with appropriate cooling) was available, some excellent performance gains could be achieved, like double or more performance and extra rendering features.
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Old Nov 15, 2010, 02:21 PM   #102
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on most decent motherboards you can draw well over 100 w from the slot alone without bad things happening - because motherboard designers specifically design for that.

if you buy a $30 motherboard then the boss of those guys told them to save 5 cents to meet their price target -> possible damage when drawing too much current for a long time
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Old Nov 15, 2010, 03:55 PM   #103
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on most decent motherboards you can draw well over 100 w from the slot alone without bad things happening - because motherboard designers specifically design for that.

if you buy a $30 motherboard then the boss of those guys told them to save 5 cents to meet their price target -> possible damage when drawing too much current for a long time
My old crappy ECS KA3-MVP allowed me to manually set the wattage limit to over 100w, let alone a quality board.

So, basically, you are saying the limiter is basically to prevent crappy boards from burning out, not for the benefit of the card itself? (Which is pretty much what I suspected from the beginning)
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Old Nov 15, 2010, 03:58 PM   #104
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Nothing new with cards detecting furmark and throttling. ATi has done it ever since 2008. I can't believe how big a fuss out of nothing this has become.
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Old Nov 15, 2010, 04:01 PM   #105
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the limiter is basically to prevent crappy boards from burning out, not for the benefit of the card itself?
it's for both

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ATi has done it ever since 2008
any idea where the system is described? i dont see any evidence of it when doing my power consumption testing. maybe you mean vrm overheat protection which reduces clocks on overheat?
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Old Nov 15, 2010, 04:08 PM   #106
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any idea where the system is described? i dont see any evidence of it when doing my power consumption testing. maybe you mean vrm overheat protection which reduces clocks on overheat?
Yes they changed the method, HD4 detected exe and HD5 have hardware protections. End result is same.

http://www.anandtech.com/show/2841/11

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Old Nov 15, 2010, 05:16 PM   #107
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!firehazard
350 watts @ 12v = 30 amps - the 75-100 that the pcie-buss can supply so you are right on the edge of what the wires from you're psu can handle ..
most wires are only rated for about 8-10 AMPS > then.melt
I put forth this question when does performance out weight the extra power usage and risk
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Old Nov 15, 2010, 05:20 PM   #108
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!firehazard
300 watts @ 12v = 30 amps
wires are only rated for about 20 > then.melt
I put forth this question when does performance out weight the extra power usage and ris
Not all wires melt at 20A. Higher gauge/thicker wire = more amps, and not only that, but that load is spread across multiple wires.

A quality board and quality psu has no problems handling these kinds of loads.
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Old Nov 15, 2010, 05:27 PM   #109
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Not all wires melt at 20A. Higher gauge/thicker wire = more amps, and not only that, but that load is spread across multiple wires.

A quality board and quality psu has no problems handling these kinds of loads.
I know that but consider when you start adding the rest of the power hungry components
bad things will happen
unless you can find a psu with 15g wiring most are 20-18
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Old Nov 15, 2010, 06:22 PM   #110
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I know that but consider when you start adding the rest of the power hungry components
bad things will happen
unless you can find a psu with 15g wiring most are 20-18
It's still not a problem with a high qulaity psu. If you can afford a 580, you can afford the high quality psu to go with it. I'll put 30A from a video card thru my psu all day, and never have to worry about it.
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Old Nov 16, 2010, 01:30 AM   #111
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Originally Posted by MikeMurphy View Post
OK, if you don't care about the topic of this thread then please don't post in this thread. This isn't a sneer remark or anything but just a way to get this thing back on topic.

Thanks,
Quote:
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@ bakalu: Any chance you could rename the EXE Furmark to whatever you like and run it again with your 580? If @ anytime you see the temp rising too much, please interrupt the program but do post a screenie after.
My ASUS GeForce GTX 580 @ 880MHz/1050. This overclock was 100% stable on games and 3DMark Vantage

vCore=1.138V, stock fan, FAN set 85%, Room Temp=25oC. I rename Furmark to nemesis and run over 40'. Here is my result:


Maximum Temp 70oC

What more you can say
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Old Nov 16, 2010, 07:04 AM   #112
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renaming furmark will not make any difference for nvidia's detection system
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Old Nov 16, 2010, 02:10 PM   #113
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alot of crying in this thread? if you are a gamer/normal user this doesnt even apply to you. To a bencher innovation like this is invaluable. thanks w1zzard
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Old Dec 15, 2010, 04:16 AM   #114
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What is this meant to do. Just tried it and I don't know if I did it correct.


is this correct?.





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Old Dec 23, 2010, 05:03 AM   #115
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why the max valuse is 317 watt for gtx 580 not 350 watt ?

http://www.techpowerup.com/reviews/H...D_6970/27.html
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Old Dec 23, 2010, 02:09 PM   #116
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thx wizzard great addition.

Last edited by trt740; Dec 23, 2010 at 04:12 PM.
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