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[Official] AMD R9 290X / 290 Owners Club - Page 2143

post #21421 of 43975
Any tips????
2nd Bench
i3570k at 4.5ghz
Driver 14.4




Loving these temps btw biggrin.gif
Edited by BroJin - 4/24/14 at 4:33pm
post #21422 of 43975
Quote:
Originally Posted by Paul17041993 View Post

neither card waits for each other, the driver just feeds them the next frame whenever they finish the current one. framepacing however can likely cause the effect you describe as it tries to fight the odd frame times.

Im talking about a cards that I have since 2011 and always had this behavior... When no1 even talked about framepacing nor it was included in drivers...
post #21423 of 43975
Quote:
Originally Posted by The Mac View Post

i wouldnt 350 tdp x 2 = 700. that only leaves 50 for the rest of your stuff.

powersupplies are most efficient at 80% load so a 1000watt would be preferable (giving a 100watt tdp for the rest of your system)
If the PSU is rated to deliver 1050W for example, it will be able to deliver continuous 1050W without any problem, regardless efficiency. The only difference between low & high efficiency PSU (for example both rated for 1050W) is the former will draw more power from the wall than the latter for delivering the same max output power. There is one exception though, if the PSU is made by dishonest manufacturer who use crappy components, then it may unable to maintain continuous max rated wattage. In some/most (I don't know which is suitable because I don't have statistic figure) cases, the PSU blows & may take some of the hardware with it.
Quote:
Originally Posted by The Mac View Post

Warning: Spoiler! (Click to show)
Quote:
Originally Posted by B NEGATIVE View Post

Quote:
Originally Posted by The Mac View Post

i wouldnt 350 tdp x 2 = 700. that only leaves 50 for the rest of your stuff.

powersupplies are most efficient at 80% load so a 1000watt would be preferable (giving a 100watt tdp for the rest of your system)
TDP is nothing to do with power draw,its a value provided for cooling requirements.

You know...Thermal Design Power

And where exactly do you think thermal transfer comes from? The ether?

My analysis, and recomendation stand. Tdp is a close approximation of power draw.
I agree with BNEG. At least that is incorrect uses of "TDP" term because you're talking about power consumption, not thermal output.
Edited by kizwan - 4/24/14 at 6:24pm
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post #21424 of 43975
Quote:
Originally Posted by Talon720 View Post


I had ran blend at the time, but b negative kinda summed up what i was trying to say. Also on Eurogamer review of the r9 295x2 compared to a crossfired 290 they claimed that the x-fired 290 got up to 850watts. Thats crazy if right that means a x-fire 290x is hitting 875-900w. I guess that could explain mine and chronicfx's shutdowns that appear psu related. Which, it's still making me question my hx1050 ability to push what I have at its peaks let alone a 3rd card.

Ill help you out a little here I had a FX9590 and 2x 7990 running off a 1350W power supply no problems with split rail - rail split 500 and 750(GPUS) I don't think the R9 295X hits more then 700 to 750 watts max and that's 2 of them, Of course the rating was probably off on my power supplies rating from 1350 to 1500W. So says all the reading I did on the power supply also the fact my lights flickered when my 7990's were at full tilt. In order for the power supply to flicker the lights had to be trying to pull 1500W at the outlet I believe a 120 breaker pops at 1550 Watts draw.
post #21425 of 43975
Quote:
Originally Posted by kizwan View Post

If the PSU is rated to deliver 1050W for example, it will be able to deliver continuous 1050W without any problem, regardless efficiency. The only difference between low & high efficiency PSU (for example both rated for 1050W) is the former will draw more power from the wall than the latter for delivering the same max output power. There is one exception though, if the PSU is made by dishonest manufacturer who use crappy components, then it may unable to maintain continuous max rated wattage. In some/most (I don't know which is suitable because I don't have statistic figure) cases, the PSU blows & may take some of the hardware with it.
I agree with BNEG. At least that is incorrect uses of "TDP" term because you're talking about power consumption, not thermal output.

Again, my recomendation stands.

My repeated testing over many years has shown rated tdp is a close approximation of actual power usage. The fact that they are not the same is irelevent, as they are close enough.

800 watts total power. Maybe a bit more depending on his oc of the cpu and gpu.

A 1000 watts ps will give him 20% headroom for expansion and additional overclockngwhile maintaining optimal pfc.
Edited by The Mac - 4/24/14 at 7:30pm
post #21426 of 43975
I have no idea how much power I use but I am sure its close to my psu limit, but I never have issues, even when i run all 3 cards oc'd.
post #21427 of 43975
Hi . Anyone can help with this? http://www.overclock.net/t/1472341/official-msi-r9-290x-lightning-thread/460 post 465 and to the end.
post #21428 of 43975
First thing I'd do is verify your OC is sticking. Make sure your GPU stays clocked up, in GPU-Z your core clock should be a straight line right at 1200MHz under 100% load.
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post #21429 of 43975
Quote:
Originally Posted by chiknnwatrmln View Post

First thing I'd do is verify your OC is sticking. Make sure your GPU stays clocked up, in GPU-Z your core clock should be a straight line right at 1200MHz under 100% load.

Clock are 1200 all the time. Temps is normal. Load 100% all the time. On stock lightining have a bad performance , compare to ref.

Metro LL

1000-1250 (both)
Ref - 71-72
MSI - 64-65
post #21430 of 43975
Quote:
Originally Posted by The Mac View Post

Quote:
Originally Posted by kizwan View Post

If the PSU is rated to deliver 1050W for example, it will be able to deliver continuous 1050W without any problem, regardless efficiency. The only difference between low & high efficiency PSU (for example both rated for 1050W) is the former will draw more power from the wall than the latter for delivering the same max output power. There is one exception though, if the PSU is made by dishonest manufacturer who use crappy components, then it may unable to maintain continuous max rated wattage. In some/most (I don't know which is suitable because I don't have statistic figure) cases, the PSU blows & may take some of the hardware with it.
I agree with BNEG. At least that is incorrect uses of "TDP" term because you're talking about power consumption, not thermal output.

Again, my recomendation stands.

My repeated testing over many years has shown rated tdp is a close approximation of actual power usage. The fact that they are not the same is irelevent, as they are close enough.

800 watts total power. Maybe a bit more depending on his oc of the cpu and gpu.

A 1000 watts ps will give him 20% headroom for expansion and additional overclockngwhile maintaining optimal pfc.

Applying that logic is incorrect.
Example: My x5650s....TDP 95w.....actual draw 190w.
Each manufacturer has its own idea of what TDP means,NVIDIA use a whole card value,Intel use a throttled value etc.
Until TDP is used the same across the board then it is worthless as a metric.
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