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Why is my graphics card (HD5770) lowering load during game play - Page 2

post #11 of 20
Thread Starter 
I have not. I have though about next time I have to take it off lapping it. I have a good thermal compound and my CPU temps with the H50 on the X4 965 with stock core and voltage settings never gets over 45-50C during game play. I can install a shroud again and a second fan on the H50 to put it back into push-pull configuration if needed but my CPU thermals I have always been happy with since I returned back to default clock settings.

In looking at typical heat values for the HD5770 the 70C sounds about right where everyone else is seeing temps when at high load of long lengths of time.

I have a huge case with above average cable management for good airflow.
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post #12 of 20
If your new GPU arrives and the problem still persist, check to see if you're getting consistant power delivery from your power supply, before you blame your CPU. Anyway what's your new GPU?
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post #13 of 20
Thread Starter 
Got the R9 285. It comes in the mail tomorrow. I have the BFG 1200 Watt monster they built when they where still around. It does only use a single 6 pin connector but I think all the HD5770's used only one connector. the 285 uses 2 of these connectors.

How do I test constant power delivery? I do not have access to current probes or an oscilloscope to monitor these parameters? Is there a software that data logs the voltage or current of the graphic card better than GPU-Z?

For applying power the modular PSU has cables with two 6-pin +12 connectors on it with one being modular to an 8-pin. I believe the BFG PSU is all a single rail but will it matt if I use just 1 cable and use the two 6-pin connectors or should I plug in a second cable and use only one 6-pin connector on each full cable from the PSU? (hope that question makes sense)
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post #14 of 20
Again, low fps is very common on AMD CPUs but when it results in freezing, it's not a good sign. Does your computer freezes time-to-time, when not gaming? Does it freezes during a stress test that should be stable, like stock settings? From time to time, does it completely shut down in a middle of something? Your power supply should be almost fine, if you have experienced non of these.

"...should I plug in a second cable and use only one 6-pin connector on each full cable from the PSU?" Yes.
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post #15 of 20
Thread Starter 
Have not experienced the freezing during any other games I play (only on Dirt 2) but I think Dirt2 is the only one that continually puts the GPU at the full load the whole time (even during menu selection and options). Basically once I launch Dirt2 the GPU is under full load (with exception to the times it glitches and dropped down in the % load).

Does not occur under normal use of anything else either. HD playback of 1080p (60FPS) video from a go-pro plays fine (unknown the GPU load during that), Will stream Netflix on one monitor while doing other internet searching and other activities on my second monitor. Boots fine. Only get a blue screen of death due to memory dump once every 3-4 months (leave the PC on at all times)

I have not ran a stress test on it lately but did do folding on the GPU (almost more than a year go though now) and had no glitching when using the PC. The management to "not interfere" with normal use appeared to work well. I can run Futuremark's 3DMark 7 or Cinebench to get a base line (will likely do that so I can see the difference from my current set up to having my new GPU in). Any other good benchmark to use to isolate possible bottle neck or location of glitch?
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post #16 of 20
Sounds like your PSU is fine.
"Basically once I launch Dirt2 the GPU is under full load (with exception to the times it glitches and dropped down in the % load)." If the game runs your GPU at 100% consistently, then it suddenly drops the usage and freezes your PC, it is due to your GPU being overheated and wants to adjust itself; by reducing the stress levels so its temps can drop, technically called "thermal throttle" (this saves they GPU from overheating, that will result in damaging the card.


"Any other good benchmark to use to isolate possible bottle neck or location of glitch?"
Bottleneck can only be minimized by overclocking or a hardware upgrade. I don't see your GPU bottlenecking your CPU, but with some games poorly tuned, it will benefit to raise the performance a little bit.
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post #17 of 20
Thread Starter 
let me clarify how I am using freezing... this puts the game into a state for less then 1-2 seconds with a FPS in the single digits. The computer does not require reboot nor does it crash.

Correct, and I can see the thermal throttle but based off everything I read the reported temps from the GPU (using GPU-Z and the AMD catalyst software) the 71-72C that my card sees as a max is "normal" under load. it does not reach thermal throttle till closer to 115C and then complete shut down at 125C.

When looking at the data logged parameters the freezing occurs for such a short length of time that there is no impact to the thermal measurements on the card. if it was thermal limiting it would be hitting a wall right? hit a temp back off the clock and then when it reaches a hysteresis point it would unthrottle till it hit the limit again. Right?

Also when comparing when the load drops there is no drop to the memory or GPU clock settings.
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post #18 of 20
Thread Starter 
Doing some bench marking I was running CINEBENCH R15 and FurMark 1.15.1 (using preset 1080 and 720 benchmarks) (3DMARK 11 did not want to launch on my PC for some reason)

CINEBENCH R15 put my FPS between 56 to 60 with standard CPU and GPU clocks. Over Clock the GPU to 915/1350 and the score went to 51 to 53 FPS. it seems like this testing did not like the bump in clock. but the results varied enough when running them that I question the repeat ability. I overclocked the CPU to 3800MHz (standard is 3400MHz) and ran the test again and regardless of GPU clock setting the FPS was around 70 to 72 FPS. This shows that while the "OpenGL" test should be mostly testing the GPU it may appear that the CPU is a bottle neck in this synthetic test.

FurMark was a different story. Very repeatable and very solid. ran each test 3 times in each configuration. regardless of CPU clock the FurMark score was more dependent on GPU clock. I saw an increase of 60 points on the 1080 benchmark and 90 points on the 720. When I up the CPU clock there was no difference in the scores previously recorded.

during all the tests the CINEBENCH put me between GTX460's, 650's, HD 5770, Quadro 4000. FurMark Preset 1080 w/ a score of 993 (or 1051 with GPU OC) puts me between GTX280 and HD7770. Furmark Preset 720 w/ a score of 1584 (or 1679 with OC) puts me around the same between an MSI HD5770 or HD 7770 and a GTX 280.

These all provide the results I would expect my graphics card to provide.

It will be fun to see how the R9 285 scores.
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post #19 of 20
Once that CPU is overclocked, it will be very hard for it to bottleneck your GPUs. One to note is that, benchmarks has almost nothing to do with real life gaming performance, even though the higher your score the better.

For your grid 2 problems it is very normal, hence your GPU usage can reach 100%. Overclocking the CPU a bit can help the minimum fps. If your GPU gaming usage does not fall over 90%, it is still almost normal for an AMD CPU, but it would be an almost serious bottleneck on an Intel I5 or I7 CPU (due to their compute performance being higher than AMD's CPUs).
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post #20 of 20
Thread Starter 
Understood on the benchmarks. I was running two different types of bench marks and do comparisons mostly with 4 combinations:

"stock" clocks on CPU & GPU, Stock CPU W/ stable OC on GPU, CPU OC w/ stock GPU, and CPU & GPU both OC. just to see base line comparisons and see if 1 item impacts the results. that would help better identify a bottle neck right?

Since the FurMark results where the same regardless of the CPU clock my thought is that the CPU provides no impact on that test. But with CINIBENCH R15 seeing an improvement to the OpenGL test only with an increase in CPU clock and not in GPU clock says CPU may bottleneck? the rendering and test in CINIBENCH R15 may be more realistic to game play.

Really though I need to spend the $ and get the game overlay programs that show active game play with trending fps so I can record live game play and see the actual fps differences for playing the same sequences under the 4 clock conditions.

The CPU load also drops in load when the GPU load drops. That is why I was wondering if it could be a software glitch or OS that's impacting the affinity or priority or doing something. its not over loading the CPU more because the load drops. Guess we will see how game play goes tonight.

Also going to hook up a Killawatt meter and see power consumption differences.
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