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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 3406

post #34051 of 38740
Quote:
Originally Posted by hamzta09 View Post

Difference between 280X and 7970?

"proper" 280X has a clock splitter allowing 3 direct displays at a time provided they are of the same specs, but only a few actually have this, DCII (NOT the "V2"), the sapphire toxic (big yellow one) and I think the newer dualX are a few, not sure what else, apart from that they are 100% identical.
   
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post #34052 of 38740
Quote:
Originally Posted by lucky88shp View Post

This thread is huuuge!

Anyways....I own the MSI TF3 7950 (ASIC 57.4% 1050/1400 - 1.20V/1.613V +20% power) and I am using MSI AB to OC and OCCT(20 mins 480x480 level 7) for initial testing and Crysis 3, Metro 2033, Valley and Heaven for actual gaming tests.
In OCCT, I have a very high Vdroop...the vddc stays @ 1.127V....for that reason I cannot go higher than 1050 on core as OCCT starts throwing errors even when I set core voltage to 1.250-1.275V.
In actual gaming, its around ~1.160V! Forcing constant voltage makes no difference....Any suggestions??
THANKS!

whats your temps?
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post #34053 of 38740
Quote:
Originally Posted by Mega Man View Post

whats your temps?

In actual games, core @ ~71C and VRM1 @ ~80C and VRM2 @ ~70C, fan on AUTO....
in OCCT, core @ ~75C and VRM1 @ ~90C and VRM2 @ 72C, fan on AUTO
I changed the TIM with Tuniq TX2 Extreme....
Edited by lucky88shp - 12/18/13 at 4:44pm
post #34054 of 38740
Quote:
Originally Posted by rdr09 View Post

Have you tried Device Manager>System Devices>HDMI>Rightclick>Update Driver?

there might be more than one.

Quote:
Originally Posted by RavageTheEarth View Post

Does it actually say that it doesn't install? After installing drivers I have to manually set the HDMI as my audio output through CCC. Just checking that you tried that thumb.gif

Quote:
Originally Posted by Jflisk View Post

Did you say even after a OS reinstall. You can try to install the Driver from Catalyst control center by itself using custom install. Also as stated above look in the device manager under sound and see if the AMD High definition audio device is there. Try using the latest drivers from catalyst. Some of the older Drivers( not sure of the version) had problems with the AMD HDMI audio. Also check and make sure you have a newer HDMI cable the older ones did not pass sound. Thanks

Tried using Driver update utility in safe mode it still does not install HDMI Audio even with the latest WHQL drivers
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post #34055 of 38740
Quote:
Originally Posted by lucky88shp View Post

Quote:
Originally Posted by Mega Man View Post

whats your temps?

In actual games, core @ ~71C and VRM1 @ ~80C and VRM2 @ ~70C, fan on AUTO....
in OCCT, core @ ~75C and VRM1 @ ~90C and VRM2 @ 72C, fan on AUTO
I changed the TIM with Tuniq TX2 Extreme....

and that is why, you need to keep it less then 60 ideal is 40-50 for ocing tahiti is temp sensitive and will artifact at anything over their level, every card is different, but it generally starts @ ~ 60 core, mem temps play a part as well.
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post #34056 of 38740
Quote:
Originally Posted by Mega Man View Post

and that is why, you need to keep it less then 60 ideal is 40-50 for ocing tahiti is temp sensitive and will artifact at anything over their level, every card is different, but it generally starts @ ~ 60 core, mem temps play a part as well.

Hmmmm...I thought the ideal was 75C...but I am stable with no errors in OCCT @ 1050/1400 => 1.20V/1.613V => 72C/ 88C-72C...I did a 20min test....
post #34057 of 38740
it may be ok for that clock. with that said, can you go higher? cool that card down
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post #34058 of 38740
Quote:
Originally Posted by lucky88shp View Post

Hmmmm...I thought the ideal was 75C...but I am stable with no errors in OCCT @ 1050/1400 => 1.20V/1.613V => 72C/ 88C-72C...I did a 20min test....

you can push to 75 safely but from my understanding you can generally get stable at lower volts with lower temps. So if you keep it under 60 at the same core/mem clock you might be able to lower the volts and still be stable. and be even further cooler because of it. Part of this is likely because the less wattage draw and more power room from lower temps..

Also OCCT is usually similar to kombuster and is fairly heavy on the gpu. Usually dont need that heavy of a test something like heaven benchmark or something on the highest settings and that will get you a better temp range to test with.
Edited by dmfree88 - 12/18/13 at 5:22pm
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post #34059 of 38740
Quote:
Originally Posted by dmfree88 View Post

you can push to 75 safely but from my understanding you can generally get stable at lower volts with lower temps. So if you keep it under 60 at the same core/mem clock you might be able to lower the volts and still be stable. and be even further cooler because of it. Part of this is likely because the less wattage draw and more power room from lower temps..

Also OCCT is usually similar to kombuster and is fairly heavy on the gpu. Usually dont need that heavy of a test something like heaven benchmark or something on the highest settings and that will get you a better temp range to test with.

Well, since my ASIC quality is really low @ 57.4%, the higher voltage need is to be expected and so are the temps! I could go with water cooling but since I've never used it and also I am low on budget after my latest build as of last week...I cannot afford it right now. Oh well, I will have to stick with my current OC settings....
post #34060 of 38740
lower asic = more voltage less heat :/
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