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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 423

post #4221 of 38701
Quote:
Originally Posted by ElGreco View Post

Both my cards have some coil whine even when i use them one at the time, even if i connect 2x 30A capable current lines from my 1250w PSU on a single card, I can distinguish the noise only because the pc is on my desk at ~ 50cm away and only if i keep the fans at 20% and run eg Heaven benchmark. The noise is more high pitched the time you click to exit heaven for a second or two, during the transit from 99% 3d operation to low 2d clocks.
I suppose that this is the case with all 7970 up to a level and is more obvious if you watercool the cards.
@Levesque
The only thing that has made me wondering, is that Levesque who has 4 watercooled cards has reported in a forum that only one makes this noise?!
Having that in mind, i checked both my cards (initally i thought i had a problematic one) but then i realized its both cards having coil whine!

Guys, your feedback on this (are there any cards with ZERO coil whine?) would be appreciated!

poke.gif
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post #4222 of 38701
My card has an audible noise when I play a demanding game. Sounds kind of like a loud hard drive. If it never gets worse I can live with it.
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post #4223 of 38701
Club3D 7970, no coil whine here.

Unfortunately it doesnt oc above 1100/6000 with stock voltage, but no coil whine smile.gif
Edited by Janaap - 2/18/12 at 5:35am
post #4224 of 38701
Quote:
Originally Posted by Janaap View Post

Club3D 7970, no coil whine here.
Unfortunately it doesnt oc above 1100/6000 with stock voltage, but no coil whine smile.gif

Have you tried running Heaven or another benchmark while keeping the fans at 20% and putting your ears real close to it ~20cm with case open?

I say this because the fan noise EASILY covers the coil whine!

Thank you!
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INTEL X-25M 160GB / BARRACUDA XT 2TB CPU-370 (wc) Windows 7 64bit Ultimate LG 2486L-PF 
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post #4225 of 38701
Quote:
Originally Posted by HGooper View Post

Two of my Sapphire 7970s have different stock voltages, 1024mv and 1174mv according to Afterburner when I reset them in default, my question is that should I choose the right voltage type on "Graphic processor type" option? Does it matter if I choose 1175mv option on 1024mv card? Also do I need to check the "Force constant voltage" option?

Yes it does matter, cause when you press "reset" in Afterburner.... it will reset to whatever option you have selected for that card.
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post #4226 of 38701
Guys, got a problem with my HD7950.
When resuming from sleep mode (I push space bar to wake up the PC) I get the following error in notification area + event viewer : Display driver amdkmdap stopped responding and has successfully recovered

Any idea what is causing this and how to solve it?
Not experiencing it while doing other things... Only when resuming from sleep mode.

Thanks for the help!
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post #4227 of 38701
Quote:
Originally Posted by ElGreco View Post

Have you tried running Heaven or another benchmark while keeping the fans at 20% and putting your ears real close to it ~20cm with case open?
I say this because the fan noise EASILY covers the coil whine!
Thank you!

Yes sir, no coil whine whatsoever.
post #4228 of 38701
Quote:
Originally Posted by chillgreg View Post



 
Well I was 90% or I wouldn't have offered. But you're reply prompted me to do some research...

And holy smokes you're right. What another AMD **********. Seriously? ANOTHER piece of software to worry about keeping up-to-date and compatibility etc etc etc.

From what I could glean only a handful of games have single-card optimisations buried in the CAP profile, and more importantly, it only has any effect if you have a) the CAP installed b) the game installed c) Catalyst AI set to Quality

Thanks for challenging me Daffie, I am educated. smile.gif

hehe, no problem wink.gif
I thought I read somewhere that it was also for single cards...
thanks for posting the rest of the settings you need to make for it to work !
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post #4229 of 38701
Quote:
Originally Posted by evensen007 View Post

Turn off MSAA 4x on your settings. This piece of crap is so un-optimized on Amd cards that it isn't worth it. The quality of the post-processing is also pants. Use the BF3 FXAA injector which looks nicer, allows you to add more saturation, and won't drop your frames through the floor like MSAA.
I think it will say 8x until you are rocking a benchmark or game that triggers x16. Either that or CCC doesn't detect it properly. Monitor PCI-E from GPu-z while you are gaming or benching.

How do you turn off MSAA 4x exactly? I mean it is the slider most left setting, moving it more right will only effect performance even more I would think.
By the way, you would advise turning this off on all games? Or just on BF3 ?
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1x Samsung 830 Series Desktop Upgrade Kit Sony Optiarc 24x DVDRW AD-7280S Scythe Mugen 2 Rev. B 2x Front intake fans 
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Hard DriveOptical DriveCoolingCooling
1x Samsung 830 Series Desktop Upgrade Kit Sony Optiarc 24x DVDRW AD-7280S Scythe Mugen 2 Rev. B 2x Front intake fans 
CoolingCoolingOSMonitor
1x Large intake side fan 1x Back exhaust fan Windows 7 Enterprise x64 SP1 Samsung SyncMaster 2494hm 
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post #4230 of 38701
Quote:
Originally Posted by Lard View Post

Edit the HD7970 Bios with a Hexeditor:
y28jrkjh8ull.png
GPU clock
RAM clock
GPU voltage
You have to reverse the value and change the hex to decimal.
Examples:
hex: 54 69 01 -> 01 69 54 -> dec: 92500 = 925 MHz GPU clock.
To change 2D GPU voltage from 0,85V to 0,8V (Lower is not supported) hex= 52 03 to 20 03
To save electricity I prefer to change all my clockstates to 300/150MHz and 0,8V (30 75 00 98 3A 00 20 03) and use a 3D profile for Games.
This works only with Asus GPU-Tweak.
How-to:
- First flash the Asus bios.
- Make a 3D-Profile with Overclocking range enhancement
- Flash the modified Asus bios, disable Overclocking range enhancement, reboot and make sure the lower clockstates are accepted (This is the tricky part).
- Enable Overclocking range enhancement.
Now you can switch between default clocks and 3D:
mv4axugdl4w.gif
If you install a new driver, you have to make this all over again.

Or you can just edit the profile...... and not have to do anything like that.
     
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