7950 low peroformance

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Stuka87

Diamond Member
Dec 10, 2010
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That power supply has two 12V rails on it. I suppose it could be possible one of those rails is getting maxed out. Although in my experience the system normally just shuts down.

A 7950 at peak TDP (200W) requires 16.6amps on a 12V rail. Although it is unlikely you would hit that max draw. Your rails have 17A and 16A. And the 4890 has a TDP of 190W.

So while you could be right on the edge, typically you would be getting crashes.
 

GaiaHunter

Diamond Member
Jul 13, 2008
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That is 2x 12V rails: 17A and 16A, so that is 204W and 192W.

Although the 7950 should consume similar power to a 4890, it is possible the PSU isn't up to the task due to natural ageing degradation, especially if that CPU is working harder.

I would do a clean install of windows first - that would remove driver/OS corruption out of the way.

Then it can be either a bad GPU or a insufficient power supply. Generally bad GPUs either show artefacts/corruption and or simply crash under load.

What kind of temperatures are your CPU and GPU hitting during game sessions?
 
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xartemporas

Member
Feb 11, 2012
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Oh, and out of curiosity, can you run a test with task manager (or similar) to see what your CPU usage is while playing? If your CPU is pegged out, you may just be CPU limited. Although I would think this isnt the case, its worth a check.

In Just Cause 2, it goes up to 70% cpu usage. and i can say that with this driver(xxxx..xx..2) runs slightly better.

In need for speed, (the heaviest game) goes from 70 to 99%..

In dirt3 in normal usage.. but here the problem is that it plays with no smooth movement..it goes from 22 to 35 fps...

I am tottaly confused. and disappointed..

I have windows 7 ultimate 64bit service pack 1...matybe a confilt with this version of windows??

I dont know what to tell anymore..
 

Stuka87

Diamond Member
Dec 10, 2010
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If your CPU hit 99%, thats certainly going to limit your FPS. No amount of video card will make your FPS go higher if your CPU is pegged. So at least in N4S, you are CPU bound.

Does your board allow for overclocking? Sounds like a good time to at least give it a try, see if your FPS go up. Especially if you are not seeing increased FPS over your last card.
 

xartemporas

Member
Feb 11, 2012
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in need for speed run, gpu load is full and temperature at about 51 degrees.
I dont know about cpu temperature..
 

xartemporas

Member
Feb 11, 2012
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That is 2x 12V rails: 17A and 16A, so that is 204W and 192W.

Although the 7950 should consume similar power to a 4890, it is possible the PSU isn't up to the task due to natural ageing degradation, especially if that CPU is working harder.

I would do a clean install of windows first - that would remove driver/OS corruption out of the way.

Then it can be either a bad GPU or a insufficient power supply. Generally bad GPUs either show artefacts/corruption and or simply crash under load.

What kind of temperatures are your CPU and GPU hitting during game sessions?

gpu temperature at about 51 degrees max, when i play need for speed.i dont know about cpu temperature.

a new psu can solve the problem?

as friend mentioned above, if my cpu goes max when i play n4speed it is a matter of cpu in this game.. i understand it.

but what about dirt 3? 25-35 fps? with no smooth movement at all.
dirt2 too.
and generally other games have not the performance i expected.
it maybe a bad gpu, but i doesnt seem to have some other problem, crashes or anyhting.

I maybe try to overclock my cpu, i can do it with my motherboard..

The only thing that i is better with this card is just cause 2, with an 25 minimum and 60 maximum fps. in full settings.
 

GaiaHunter

Diamond Member
Jul 13, 2008
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a new psu can solve the problem?

If it is the problem.

But before spending money, I would try all non spending money solutions.

Fresh Windows install, OC the CPU, making sure the pci-e connector isn't from the same rail that is feeding the CPU, take the card out and reseat it, etc.

Temperature of the card seems fine.
 

xartemporas

Member
Feb 11, 2012
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If it is the problem.

But before spending money, I would try all non spending money solutions.

Fresh Windows install, OC the CPU, making sure the pci-e connector isn't from the same rail that is feeding the CPU, take the card out and reseat it, etc.

Temperature of the card seems fine.

Thanx for advice. i'll try the cheap way first./ ;)
Anyway , when i first put the card, my second hdd couldnt be recognized.sometimes crashed at the beginning, sometimes when windows loads, and it got into windows once, with no second hdd .. i dont know if it is a psu problem or my second hdd just happend to crash now!
 

xartemporas

Member
Feb 11, 2012
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i supplied vga with a differenet cable, and now windows rating put a 7.9 in graphics, but firsty time system recognized half of memory and 5.9degrees on cpu, and now memory ok, 7,5 degrees but cpu still has 5.9.. before changing the cables, cpu and memory were high but graphic card degrees low..

so it is a psu problem?
 

Stuka87

Diamond Member
Dec 10, 2010
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Well, it is sounding that way. To verify I would swap back in the old video card, see if everything starts working as it did before.

Would hate to tell you to buy a new PSU and that turns out to not be it.
 

GaiaHunter

Diamond Member
Jul 13, 2008
3,700
406
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This is the problem of trouble shooting PCs - we should have a stock of changeable parts. :)

And how was the in game performance of the card when the WEi score was 7.9 or you didn't test?
 

Meghan54

Lifer
Oct 18, 2009
11,684
5,228
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Would hate to tell you to buy a new PSU and that turns out to not be it.




True that, but the TR2 line from Thermaltake is not known as being a high quality, modern power supply by any stretch of the imagination. *
 

Arkadrel

Diamond Member
Oct 19, 2010
3,681
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@xartemporas

Do you have any friends that are good with pcs? or family?
I think you should take it to a someone with more pc experiance than you have, and ask them to take a look at it.

Doesnt sound like you know what your doing.
 

skipsneeky2

Diamond Member
May 21, 2011
5,035
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True that, but the TR2 line from Thermaltake is not known as being a high quality, modern power supply by any stretch of the imagination. *

My 600 tr2 with dual 12v one being 32a and the second at 24a at one point and time powered up a 4ghz 1100t and a gtx570 with no fuss of any kind and while i had no plans of this exact model as i got it in a pinch, it held up very well.

I am sure for any modern gpu like a 7970 with a moderately oced 2500k it would be perfectly fine as both would consume less power then the 1100t@4ghz and the gtx570.

No plans for sli or crossfire or the ultimate gpu or cpu oc so it works.
 

xartemporas

Member
Feb 11, 2012
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My 600 tr2 with dual 12v one being 32a and the second at 24a at one point and time powered up a 4ghz 1100t and a gtx570 with no fuss of any kind and while i had no plans of this exact model as i got it in a pinch, it held up very well.

I am sure for any modern gpu like a 7970 with a moderately oced 2500k it would be perfectly fine as both would consume less power then the 1100t@4ghz and the gtx570.

No plans for sli or crossfire or the ultimate gpu or cpu oc so it works.

my cpu load goes up to 90 -95 %and maybe more with games like dirt 2 and duke nukem forever...except from screen, sound crashes too. those games were running perfectly a few days ago with 4890...

although there is one game that runs better. just cause 2...

moreover with the two 6pin cables from the psu on the card windows rating is at 6.6 for the card

With other cables(from molex, randomly just for test) it was rated at 7.9 from windows.

I also updated motherboard bios. but i have almost the same reults

I hope it is a psu problem! and that this card can work together with this motherboard(asus p7p55d)..and dont have an issue....

thermaltake tr2 550 watt my psu...
 
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Stuka87

Diamond Member
Dec 10, 2010
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While I think you are CPU bound (CPU at 90-95% is showing that), it still looks like you are having power supply issues.

Do you have access to another machine to test your card in, or test another power supply in yours?
 

xartemporas

Member
Feb 11, 2012
29
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While I think you are CPU bound (CPU at 90-95% is showing that), it still looks like you are having power supply issues.

Do you have access to another machine to test your card in, or test another power supply in yours?

New info..

After i updated m/b bios, there is an error message in the first screen which says something about cpu over temperature...

the truth is that there is a few months since i last clean the fan, i'll try that, but in other case it maybe be cause by wrong voltage supplied from the psu..

Let's try..

..As for cpu bound, it is not true, at least in these older games. i have been playing these games since a long time now, and they ran perfectly with tis system and 4890(i think that core i5 750, is a quite good enough proccessor for these games..it's already tested.. :thumbsup:
 

thilanliyan

Lifer
Jun 21, 2005
12,060
2,273
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Were you actually getting higher framerates with the 4890? You shouldn't be getting lower framerates unless maybe the CPU is throttling.

It could actually be CPU bound because the 7950 is a much more powerful card than the 4890.

However, you should definitely check CPU temps...if they are getting too hot your CPU will throttle down, causing it to run at a lower speed, and you may get the CPU usage at max because of that.

Report your LOAD CPU temps (use Prime95 to get a full load on the CPU) using Coretemp or the motherboard program.
 
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skipsneeky2

Diamond Member
May 21, 2011
5,035
1
71
Were you actually getting higher framerates with the 4890? You shouldn't be getting lower framerates unless maybe the CPU is throttling.

It could actually be CPU bound because the 7950 is a much more powerful card than the 4890.

However, you should definitely check CPU temps...if they are getting too hot your CPU will throttle down, causing it to run at a lower speed, and you may get the CPU usage at max because of that.

Report your LOAD CPU temps (use Prime95 to get a full load on the CPU) using Coretemp or the motherboard program.

Yup if thermals are to hot,the clockspeed will drop.

I know when i replaced my i3 with a i5 2500k,i put on some new antec paste with my hyper 101.

About a hour in everything seems fine so i start playing BF3 and its dog ass slow about 20 mins in and i smell something and checking my temps,the cpu is at 98cel i guess the paste was worst then crap as i applied it correctly and it cooked itself.

The paste was almost like a clay when i removed the heatsink to reapply so i just tossed that nasty ass antec crap in the trash and just installed the stock heatsink as i had no more artic silver 5 but i came close to ruining my chip.o_O
 

xartemporas

Member
Feb 11, 2012
29
0
0
Were you actually getting higher framerates with the 4890? You shouldn't be getting lower framerates unless maybe the CPU is throttling.

It could actually be CPU bound because the 7950 is a much more powerful card than the 4890.

However, you should definitely check CPU temps...if they are getting too hot your CPU will throttle down, causing it to run at a lower speed, and you may get the CPU usage at max because of that.

Report your LOAD CPU temps (use Prime95 to get a full load on the CPU) using Coretemp or the motherboard program.

I am getting higher frame rates with 7950 only in just cause 2.the only game that plays fine here.

And in other games, like dirt2 dirt3 and most games i used to play before, it is not about frame rates, i'ts about a high cpu usage which makes the screen moves no smooth..(also i saw some bad textures and some squares in graphics for a moment in duke nukem for ever)..

and finally i saw (once) the message for cpu over temperature.. it is because this card wants a better cpu to cooperate with and this cause high temperaturre and high usage( so i need cpu upgrade to play with this card), or because of bad supply from the psu?(hope)..(it is 2,5 years old, and 550watt [thermaltake tr2])...

Anyway as about cpu temp with prime 95:
70-75 C with 0% or small load, and 98C with full load...
 
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